diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 18795917ffb4..a695d96468bb 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -11,7 +11,7 @@
     "packages/google-area120-tables": "0.11.11",
     "packages/google-cloud-access-approval": "1.13.5",
     "packages/google-cloud-advisorynotifications": "0.3.10",
-    "packages/google-cloud-alloydb": "0.3.12",
+    "packages/google-cloud-alloydb": "0.3.13",
     "packages/google-cloud-alloydb-connectors": "0.1.6",
     "packages/google-cloud-api-gateway": "1.9.5",
     "packages/google-cloud-api-keys": "0.5.11",
@@ -27,7 +27,7 @@
     "packages/google-cloud-automl": "2.13.5",
     "packages/google-cloud-backupdr": "0.1.3",
     "packages/google-cloud-bare-metal-solution": "1.7.5",
-    "packages/google-cloud-batch": "0.17.26",
+    "packages/google-cloud-batch": "0.17.27",
     "packages/google-cloud-beyondcorp-appconnections": "0.4.11",
     "packages/google-cloud-beyondcorp-appconnectors": "0.4.11",
     "packages/google-cloud-beyondcorp-appgateways": "0.4.11",
@@ -38,7 +38,7 @@
     "packages/google-cloud-bigquery-connection": "1.15.5",
     "packages/google-cloud-bigquery-data-exchange": "0.5.13",
     "packages/google-cloud-bigquery-datapolicies": "0.6.8",
-    "packages/google-cloud-bigquery-datatransfer": "3.15.6",
+    "packages/google-cloud-bigquery-datatransfer": "3.15.7",
     "packages/google-cloud-bigquery-logging": "1.4.5",
     "packages/google-cloud-bigquery-migration": "0.11.9",
     "packages/google-cloud-bigquery-reservation": "1.13.5",
@@ -56,7 +56,7 @@
     "packages/google-cloud-confidentialcomputing": "0.4.11",
     "packages/google-cloud-config": "0.1.11",
     "packages/google-cloud-contact-center-insights": "1.17.5",
-    "packages/google-cloud-container": "2.50.0",
+    "packages/google-cloud-container": "2.51.0",
     "packages/google-cloud-containeranalysis": "2.14.5",
     "packages/google-cloud-contentwarehouse": "0.7.9",
     "packages/google-cloud-data-fusion": "1.10.5",
@@ -67,20 +67,20 @@
     "packages/google-cloud-dataform": "0.5.11",
     "packages/google-cloud-datalabeling": "1.10.5",
     "packages/google-cloud-dataplex": "2.2.2",
-    "packages/google-cloud-dataproc": "5.10.2",
+    "packages/google-cloud-dataproc": "5.11.0",
     "packages/google-cloud-dataproc-metastore": "1.15.5",
     "packages/google-cloud-datastream": "1.9.5",
     "packages/google-cloud-deploy": "2.0.1",
     "packages/google-cloud-developerconnect": "0.1.2",
     "packages/google-cloud-dialogflow": "2.31.0",
     "packages/google-cloud-dialogflow-cx": "1.35.0",
-    "packages/google-cloud-discoveryengine": "0.12.1",
+    "packages/google-cloud-discoveryengine": "0.12.2",
     "packages/google-cloud-dlp": "3.22.0",
     "packages/google-cloud-dms": "1.9.5",
     "packages/google-cloud-documentai": "2.31.0",
     "packages/google-cloud-domains": "1.7.5",
     "packages/google-cloud-edgecontainer": "0.5.11",
-    "packages/google-cloud-edgenetwork": "0.1.10",
+    "packages/google-cloud-edgenetwork": "0.1.11",
     "packages/google-cloud-enterpriseknowledgegraph": "0.3.11",
     "packages/google-cloud-essential-contacts": "1.7.5",
     "packages/google-cloud-eventarc": "1.11.5",
@@ -89,7 +89,7 @@
     "packages/google-cloud-functions": "1.17.0",
     "packages/google-cloud-gdchardwaremanagement": "0.1.3",
     "packages/google-cloud-gke-backup": "0.5.11",
-    "packages/google-cloud-gke-connect-gateway": "0.8.11",
+    "packages/google-cloud-gke-connect-gateway": "0.9.0",
     "packages/google-cloud-gke-hub": "1.14.2",
     "packages/google-cloud-gke-multicloud": "0.6.12",
     "packages/google-cloud-gsuiteaddons": "0.3.10",
@@ -129,7 +129,7 @@
     "packages/google-cloud-privilegedaccessmanager": "0.1.1",
     "packages/google-cloud-public-ca": "0.3.12",
     "packages/google-cloud-rapidmigrationassessment": "0.1.9",
-    "packages/google-cloud-recaptcha-enterprise": "1.21.2",
+    "packages/google-cloud-recaptcha-enterprise": "1.22.1",
     "packages/google-cloud-recommendations-ai": "0.10.12",
     "packages/google-cloud-recommender": "2.15.5",
     "packages/google-cloud-redis": "2.15.5",
@@ -145,7 +145,7 @@
     "packages/google-cloud-securitycentermanagement": "0.1.14",
     "packages/google-cloud-service-control": "1.12.3",
     "packages/google-cloud-service-directory": "1.11.6",
-    "packages/google-cloud-service-management": "1.8.5",
+    "packages/google-cloud-service-management": "1.9.0",
     "packages/google-cloud-service-usage": "1.10.5",
     "packages/google-cloud-servicehealth": "0.1.6",
     "packages/google-cloud-shell": "1.9.5",
@@ -158,7 +158,7 @@
     "packages/google-cloud-talent": "2.13.5",
     "packages/google-cloud-tasks": "2.16.5",
     "packages/google-cloud-telcoautomation": "0.2.5",
-    "packages/google-cloud-texttospeech": "2.17.1",
+    "packages/google-cloud-texttospeech": "2.17.2",
     "packages/google-cloud-tpu": "1.18.5",
     "packages/google-cloud-trace": "1.13.5",
     "packages/google-cloud-translate": "3.16.0",
@@ -167,7 +167,7 @@
     "packages/google-cloud-video-transcoder": "1.12.5",
     "packages/google-cloud-videointelligence": "2.13.5",
     "packages/google-cloud-vision": "3.7.4",
-    "packages/google-cloud-visionai": "0.1.2",
+    "packages/google-cloud-visionai": "0.1.3",
     "packages/google-cloud-vm-migration": "1.8.5",
     "packages/google-cloud-vmwareengine": "1.5.0",
     "packages/google-cloud-vpc-access": "1.10.5",
@@ -184,7 +184,7 @@
     "packages/google-maps-routeoptimization": "0.1.2",
     "packages/google-maps-routing": "0.6.10",
     "packages/google-maps-solar": "0.1.2",
-    "packages/google-shopping-css": "0.1.7",
+    "packages/google-shopping-css": "0.1.8",
     "packages/google-shopping-merchant-accounts": "0.1.3",
     "packages/google-shopping-merchant-conversions": "0.1.3",
     "packages/google-shopping-merchant-datasources": "0.1.2",
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2696012f56a1..9f4e47fb21b5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -30,7 +30,7 @@ Changelogs
 - [google-cloud-automl==2.13.5](https://github.com/googleapis/google-cloud-python/tree/main/packages/google-cloud-automl/CHANGELOG.md)
 - [google-cloud-backupdr==0.1.3](https://github.com/googleapis/google-cloud-python/tree/main/packages/google-cloud-backupdr/CHANGELOG.md)
 - [google-cloud-bare-metal-solution==1.7.5](https://github.com/googleapis/google-cloud-python/tree/main/packages/google-cloud-bare-metal-solution/CHANGELOG.md)
-- [google-cloud-batch==0.17.25](https://github.com/googleapis/google-cloud-python/tree/main/packages/google-cloud-batch/CHANGELOG.md)
+- [google-cloud-batch==0.17.26](https://github.com/googleapis/google-cloud-python/tree/main/packages/google-cloud-batch/CHANGELOG.md)
 - [google-cloud-beyondcorp-appconnections==0.4.11](https://github.com/googleapis/google-cloud-python/tree/main/packages/google-cloud-beyondcorp-appconnections/CHANGELOG.md)
 - [google-cloud-beyondcorp-appconnectors==0.4.11](https://github.com/googleapis/google-cloud-python/tree/main/packages/google-cloud-beyondcorp-appconnectors/CHANGELOG.md)
 - [google-cloud-beyondcorp-appgateways==0.4.11](https://github.com/googleapis/google-cloud-python/tree/main/packages/google-cloud-beyondcorp-appgateways/CHANGELOG.md)
@@ -41,7 +41,7 @@ Changelogs
 - [google-cloud-bigquery-connection==1.15.5](https://github.com/googleapis/google-cloud-python/tree/main/packages/google-cloud-bigquery-connection/CHANGELOG.md)
 - [google-cloud-bigquery-data-exchange==0.5.13](https://github.com/googleapis/google-cloud-python/tree/main/packages/google-cloud-bigquery-data-exchange/CHANGELOG.md)
 - [google-cloud-bigquery-datapolicies==0.6.8](https://github.com/googleapis/google-cloud-python/tree/main/packages/google-cloud-bigquery-datapolicies/CHANGELOG.md)
-- [google-cloud-bigquery-datatransfer==3.15.5](https://github.com/googleapis/google-cloud-python/tree/main/packages/google-cloud-bigquery-datatransfer/CHANGELOG.md)
+- [google-cloud-bigquery-datatransfer==3.15.6](https://github.com/googleapis/google-cloud-python/tree/main/packages/google-cloud-bigquery-datatransfer/CHANGELOG.md)
 - [google-cloud-bigquery-logging==1.4.5](https://github.com/googleapis/google-cloud-python/tree/main/packages/google-cloud-bigquery-logging/CHANGELOG.md)
 - [google-cloud-bigquery-migration==0.11.9](https://github.com/googleapis/google-cloud-python/tree/main/packages/google-cloud-bigquery-migration/CHANGELOG.md)
 - [google-cloud-bigquery-reservation==1.13.5](https://github.com/googleapis/google-cloud-python/tree/main/packages/google-cloud-bigquery-reservation/CHANGELOG.md)
@@ -92,7 +92,7 @@ Changelogs
 - [google-cloud-functions==1.17.0](https://github.com/googleapis/google-cloud-python/tree/main/packages/google-cloud-functions/CHANGELOG.md)
 - [google-cloud-gdchardwaremanagement==0.1.3](https://github.com/googleapis/google-cloud-python/tree/main/packages/google-cloud-gdchardwaremanagement/CHANGELOG.md)
 - [google-cloud-gke-backup==0.5.11](https://github.com/googleapis/google-cloud-python/tree/main/packages/google-cloud-gke-backup/CHANGELOG.md)
-- [google-cloud-gke-connect-gateway==0.8.11](https://github.com/googleapis/google-cloud-python/tree/main/packages/google-cloud-gke-connect-gateway/CHANGELOG.md)
+- [google-cloud-gke-connect-gateway==0.9.0](https://github.com/googleapis/google-cloud-python/tree/main/packages/google-cloud-gke-connect-gateway/CHANGELOG.md)
 - [google-cloud-gke-hub==1.14.2](https://github.com/googleapis/google-cloud-python/tree/main/packages/google-cloud-gke-hub/CHANGELOG.md)
 - [google-cloud-gke-multicloud==0.6.12](https://github.com/googleapis/google-cloud-python/tree/main/packages/google-cloud-gke-multicloud/CHANGELOG.md)
 - [google-cloud-gsuiteaddons==0.3.10](https://github.com/googleapis/google-cloud-python/tree/main/packages/google-cloud-gsuiteaddons/CHANGELOG.md)
@@ -132,7 +132,7 @@ Changelogs
 - [google-cloud-privilegedaccessmanager==0.1.1](https://github.com/googleapis/google-cloud-python/tree/main/packages/google-cloud-privilegedaccessmanager/CHANGELOG.md)
 - [google-cloud-public-ca==0.3.12](https://github.com/googleapis/google-cloud-python/tree/main/packages/google-cloud-public-ca/CHANGELOG.md)
 - [google-cloud-rapidmigrationassessment==0.1.9](https://github.com/googleapis/google-cloud-python/tree/main/packages/google-cloud-rapidmigrationassessment/CHANGELOG.md)
-- [google-cloud-recaptcha-enterprise==1.21.2](https://github.com/googleapis/google-cloud-python/tree/main/packages/google-cloud-recaptcha-enterprise/CHANGELOG.md)
+- [google-cloud-recaptcha-enterprise==1.22.0](https://github.com/googleapis/google-cloud-python/tree/main/packages/google-cloud-recaptcha-enterprise/CHANGELOG.md)
 - [google-cloud-recommendations-ai==0.10.12](https://github.com/googleapis/google-cloud-python/tree/main/packages/google-cloud-recommendations-ai/CHANGELOG.md)
 - [google-cloud-recommender==2.15.5](https://github.com/googleapis/google-cloud-python/tree/main/packages/google-cloud-recommender/CHANGELOG.md)
 - [google-cloud-redis-cluster==0.1.8](https://github.com/googleapis/google-cloud-python/tree/main/packages/google-cloud-redis-cluster/CHANGELOG.md)
@@ -161,7 +161,7 @@ Changelogs
 - [google-cloud-talent==2.13.5](https://github.com/googleapis/google-cloud-python/tree/main/packages/google-cloud-talent/CHANGELOG.md)
 - [google-cloud-tasks==2.16.5](https://github.com/googleapis/google-cloud-python/tree/main/packages/google-cloud-tasks/CHANGELOG.md)
 - [google-cloud-telcoautomation==0.2.5](https://github.com/googleapis/google-cloud-python/tree/main/packages/google-cloud-telcoautomation/CHANGELOG.md)
-- [google-cloud-texttospeech==2.17.0](https://github.com/googleapis/google-cloud-python/tree/main/packages/google-cloud-texttospeech/CHANGELOG.md)
+- [google-cloud-texttospeech==2.17.2](https://github.com/googleapis/google-cloud-python/tree/main/packages/google-cloud-texttospeech/CHANGELOG.md)
 - [google-cloud-tpu==1.18.5](https://github.com/googleapis/google-cloud-python/tree/main/packages/google-cloud-tpu/CHANGELOG.md)
 - [google-cloud-trace==1.13.5](https://github.com/googleapis/google-cloud-python/tree/main/packages/google-cloud-trace/CHANGELOG.md)
 - [google-cloud-translate==3.16.0](https://github.com/googleapis/google-cloud-python/tree/main/packages/google-cloud-translate/CHANGELOG.md)
@@ -187,7 +187,7 @@ Changelogs
 - [google-maps-routeoptimization==0.1.2](https://github.com/googleapis/google-cloud-python/tree/main/packages/google-maps-routeoptimization/CHANGELOG.md)
 - [google-maps-routing==0.6.10](https://github.com/googleapis/google-cloud-python/tree/main/packages/google-maps-routing/CHANGELOG.md)
 - [google-maps-solar==0.1.2](https://github.com/googleapis/google-cloud-python/tree/main/packages/google-maps-solar/CHANGELOG.md)
-- [google-shopping-css==0.1.7](https://github.com/googleapis/google-cloud-python/tree/main/packages/google-shopping-css/CHANGELOG.md)
+- [google-shopping-css==0.1.8](https://github.com/googleapis/google-cloud-python/tree/main/packages/google-shopping-css/CHANGELOG.md)
 - [google-shopping-merchant-accounts==0.1.3](https://github.com/googleapis/google-cloud-python/tree/main/packages/google-shopping-merchant-accounts/CHANGELOG.md)
 - [google-shopping-merchant-conversions==0.1.3](https://github.com/googleapis/google-cloud-python/tree/main/packages/google-shopping-merchant-conversions/CHANGELOG.md)
 - [google-shopping-merchant-datasources==0.1.2](https://github.com/googleapis/google-cloud-python/tree/main/packages/google-shopping-merchant-datasources/CHANGELOG.md)
diff --git a/packages/google-cloud-alloydb/CHANGELOG.md b/packages/google-cloud-alloydb/CHANGELOG.md
index c2be3ab22ace..7545a07df323 100644
--- a/packages/google-cloud-alloydb/CHANGELOG.md
+++ b/packages/google-cloud-alloydb/CHANGELOG.md
@@ -1,5 +1,15 @@
 # Changelog
 
+## [0.3.13](https://github.com/googleapis/google-cloud-python/compare/google-cloud-alloydb-v0.3.12...google-cloud-alloydb-v0.3.13) (2024-09-03)
+
+
+### Features
+
+* support for enabling outbound public IP on an instance ([4f468fa](https://github.com/googleapis/google-cloud-python/commit/4f468fa598c51426ef31ef878f9c3b61f79802f9))
+* support for getting maintenance schedule of a cluster ([4f468fa](https://github.com/googleapis/google-cloud-python/commit/4f468fa598c51426ef31ef878f9c3b61f79802f9))
+* support for getting outbound public IP addresses of an instance ([4f468fa](https://github.com/googleapis/google-cloud-python/commit/4f468fa598c51426ef31ef878f9c3b61f79802f9))
+* support for setting maintenance update policy on a cluster ([4f468fa](https://github.com/googleapis/google-cloud-python/commit/4f468fa598c51426ef31ef878f9c3b61f79802f9))
+
 ## [0.3.12](https://github.com/googleapis/google-cloud-python/compare/google-cloud-alloydb-v0.3.11...google-cloud-alloydb-v0.3.12) (2024-07-30)
 
 
diff --git a/packages/google-cloud-alloydb/google/cloud/alloydb/gapic_version.py b/packages/google-cloud-alloydb/google/cloud/alloydb/gapic_version.py
index 558c8aab67c5..fb3463bbb3c2 100644
--- a/packages/google-cloud-alloydb/google/cloud/alloydb/gapic_version.py
+++ b/packages/google-cloud-alloydb/google/cloud/alloydb/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "0.0.0"  # {x-release-please-version}
+__version__ = "0.3.13"  # {x-release-please-version}
diff --git a/packages/google-cloud-alloydb/google/cloud/alloydb_v1/gapic_version.py b/packages/google-cloud-alloydb/google/cloud/alloydb_v1/gapic_version.py
index 558c8aab67c5..fb3463bbb3c2 100644
--- a/packages/google-cloud-alloydb/google/cloud/alloydb_v1/gapic_version.py
+++ b/packages/google-cloud-alloydb/google/cloud/alloydb_v1/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "0.0.0"  # {x-release-please-version}
+__version__ = "0.3.13"  # {x-release-please-version}
diff --git a/packages/google-cloud-alloydb/google/cloud/alloydb_v1/types/resources.py b/packages/google-cloud-alloydb/google/cloud/alloydb_v1/types/resources.py
index 235d25432420..eab98a4fe3ff 100644
--- a/packages/google-cloud-alloydb/google/cloud/alloydb_v1/types/resources.py
+++ b/packages/google-cloud-alloydb/google/cloud/alloydb_v1/types/resources.py
@@ -1283,7 +1283,7 @@ class QueryInsightsInstanceConfig(proto.Message):
             query_string_length (int):
                 Query string length. The default value is
                 1024. Any integer between 256 and 4500 is
-                    considered valid.
+                considered valid.
             query_plans_per_minute (int):
                 Number of query execution plans captured by
                 Insights per minute for all queries combined.
diff --git a/packages/google-cloud-alloydb/google/cloud/alloydb_v1alpha/gapic_version.py b/packages/google-cloud-alloydb/google/cloud/alloydb_v1alpha/gapic_version.py
index 558c8aab67c5..fb3463bbb3c2 100644
--- a/packages/google-cloud-alloydb/google/cloud/alloydb_v1alpha/gapic_version.py
+++ b/packages/google-cloud-alloydb/google/cloud/alloydb_v1alpha/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "0.0.0"  # {x-release-please-version}
+__version__ = "0.3.13"  # {x-release-please-version}
diff --git a/packages/google-cloud-alloydb/google/cloud/alloydb_v1alpha/types/resources.py b/packages/google-cloud-alloydb/google/cloud/alloydb_v1alpha/types/resources.py
index e4af7a8c95de..22d401ff11cc 100644
--- a/packages/google-cloud-alloydb/google/cloud/alloydb_v1alpha/types/resources.py
+++ b/packages/google-cloud-alloydb/google/cloud/alloydb_v1alpha/types/resources.py
@@ -1344,7 +1344,7 @@ class QueryInsightsInstanceConfig(proto.Message):
             query_string_length (int):
                 Query string length. The default value is
                 1024. Any integer between 256 and 4500 is
-                    considered valid.
+                considered valid.
             query_plans_per_minute (int):
                 Number of query execution plans captured by
                 Insights per minute for all queries combined.
diff --git a/packages/google-cloud-alloydb/google/cloud/alloydb_v1beta/__init__.py b/packages/google-cloud-alloydb/google/cloud/alloydb_v1beta/__init__.py
index 648260737ae8..209ee9e5b9ce 100644
--- a/packages/google-cloud-alloydb/google/cloud/alloydb_v1beta/__init__.py
+++ b/packages/google-cloud-alloydb/google/cloud/alloydb_v1beta/__init__.py
@@ -35,6 +35,8 @@
     EncryptionInfo,
     Instance,
     InstanceView,
+    MaintenanceSchedule,
+    MaintenanceUpdatePolicy,
     MigrationSource,
     SslConfig,
     SupportedDatabaseFlag,
@@ -142,6 +144,8 @@
     "ListSupportedDatabaseFlagsResponse",
     "ListUsersRequest",
     "ListUsersResponse",
+    "MaintenanceSchedule",
+    "MaintenanceUpdatePolicy",
     "MigrationSource",
     "OperationMetadata",
     "PromoteClusterRequest",
diff --git a/packages/google-cloud-alloydb/google/cloud/alloydb_v1beta/gapic_version.py b/packages/google-cloud-alloydb/google/cloud/alloydb_v1beta/gapic_version.py
index 558c8aab67c5..fb3463bbb3c2 100644
--- a/packages/google-cloud-alloydb/google/cloud/alloydb_v1beta/gapic_version.py
+++ b/packages/google-cloud-alloydb/google/cloud/alloydb_v1beta/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "0.0.0"  # {x-release-please-version}
+__version__ = "0.3.13"  # {x-release-please-version}
diff --git a/packages/google-cloud-alloydb/google/cloud/alloydb_v1beta/types/__init__.py b/packages/google-cloud-alloydb/google/cloud/alloydb_v1beta/types/__init__.py
index 69269be33581..262b798ccfc1 100644
--- a/packages/google-cloud-alloydb/google/cloud/alloydb_v1beta/types/__init__.py
+++ b/packages/google-cloud-alloydb/google/cloud/alloydb_v1beta/types/__init__.py
@@ -29,6 +29,8 @@
     EncryptionInfo,
     Instance,
     InstanceView,
+    MaintenanceSchedule,
+    MaintenanceUpdatePolicy,
     MigrationSource,
     SslConfig,
     SupportedDatabaseFlag,
@@ -95,6 +97,8 @@
     "EncryptionConfig",
     "EncryptionInfo",
     "Instance",
+    "MaintenanceSchedule",
+    "MaintenanceUpdatePolicy",
     "MigrationSource",
     "SslConfig",
     "SupportedDatabaseFlag",
diff --git a/packages/google-cloud-alloydb/google/cloud/alloydb_v1beta/types/resources.py b/packages/google-cloud-alloydb/google/cloud/alloydb_v1beta/types/resources.py
index fd99ddd2630f..9cf140f311a4 100644
--- a/packages/google-cloud-alloydb/google/cloud/alloydb_v1beta/types/resources.py
+++ b/packages/google-cloud-alloydb/google/cloud/alloydb_v1beta/types/resources.py
@@ -40,6 +40,8 @@
         "ContinuousBackupInfo",
         "BackupSource",
         "ContinuousBackupSource",
+        "MaintenanceUpdatePolicy",
+        "MaintenanceSchedule",
         "Cluster",
         "Instance",
         "ConnectionInfo",
@@ -622,6 +624,69 @@ class ContinuousBackupSource(proto.Message):
     )
 
 
+class MaintenanceUpdatePolicy(proto.Message):
+    r"""MaintenanceUpdatePolicy defines the policy for system
+    updates.
+
+    Attributes:
+        maintenance_windows (MutableSequence[google.cloud.alloydb_v1beta.types.MaintenanceUpdatePolicy.MaintenanceWindow]):
+            Preferred windows to perform maintenance.
+            Currently limited to 1.
+    """
+
+    class MaintenanceWindow(proto.Message):
+        r"""MaintenanceWindow specifies a preferred day and time for
+        maintenance.
+
+        Attributes:
+            day (google.type.dayofweek_pb2.DayOfWeek):
+                Preferred day of the week for maintenance,
+                e.g. MONDAY, TUESDAY, etc.
+            start_time (google.type.timeofday_pb2.TimeOfDay):
+                Preferred time to start the maintenance
+                operation on the specified day. Maintenance will
+                start within 1 hour of this time.
+        """
+
+        day: dayofweek_pb2.DayOfWeek = proto.Field(
+            proto.ENUM,
+            number=1,
+            enum=dayofweek_pb2.DayOfWeek,
+        )
+        start_time: timeofday_pb2.TimeOfDay = proto.Field(
+            proto.MESSAGE,
+            number=2,
+            message=timeofday_pb2.TimeOfDay,
+        )
+
+    maintenance_windows: MutableSequence[MaintenanceWindow] = proto.RepeatedField(
+        proto.MESSAGE,
+        number=1,
+        message=MaintenanceWindow,
+    )
+
+
+class MaintenanceSchedule(proto.Message):
+    r"""MaintenanceSchedule stores the maintenance schedule generated
+    from the MaintenanceUpdatePolicy, once a maintenance rollout is
+    triggered, if MaintenanceWindow is set, and if there is no
+    conflicting DenyPeriod. The schedule is cleared once the update
+    takes place. This field cannot be manually changed; modify the
+    MaintenanceUpdatePolicy instead.
+
+    Attributes:
+        start_time (google.protobuf.timestamp_pb2.Timestamp):
+            Output only. The scheduled start time for the
+            maintenance.
+    """
+
+    start_time: timestamp_pb2.Timestamp = proto.Field(
+        proto.MESSAGE,
+        number=1,
+        message=timestamp_pb2.Timestamp,
+    )
+
+
 class Cluster(proto.Message):
     r"""A cluster is a collection of regional AlloyDB resources. It
     can include a primary instance and one or more read pool
@@ -693,7 +758,7 @@ class Cluster(proto.Message):
             cluster resources are created and from which they are
             accessible via Private IP. The network must belong to the
             same project as the cluster. It is specified in the form:
-            "projects/{project}/global/networks/{network_id}". This is
+            ``projects/{project}/global/networks/{network_id}``. This is
             required to create a cluster. Deprecated, use
             network_config.network instead.
         etag (str):
@@ -752,6 +817,13 @@ class Cluster(proto.Message):
             specific to PRIMARY cluster.
         satisfies_pzs (bool):
             Output only. Reserved for future use.
+        maintenance_update_policy (google.cloud.alloydb_v1beta.types.MaintenanceUpdatePolicy):
+            Optional. The maintenance update policy
+            determines when to allow or deny updates.
+        maintenance_schedule (google.cloud.alloydb_v1beta.types.MaintenanceSchedule):
+            Output only. The maintenance schedule for the
+            cluster, generated for a specific rollout if a
+            maintenance window is set.
     """
 
     class State(proto.Enum):
@@ -830,7 +902,7 @@ class NetworkConfig(proto.Message):
                 cluster resources are created and from which they are
                 accessible via Private IP. The network must belong to the
                 same project as the cluster. It is specified in the form:
-                "projects/{project_number}/global/networks/{network_id}".
+                ``projects/{project_number}/global/networks/{network_id}``.
                 This is required to create a cluster.
             allocated_ip_range (str):
                 Optional. Name of the allocated IP range for the private IP
@@ -1014,6 +1086,16 @@ class PrimaryConfig(proto.Message):
         proto.BOOL,
         number=30,
     )
+    maintenance_update_policy: "MaintenanceUpdatePolicy" = proto.Field(
+        proto.MESSAGE,
+        number=32,
+        message="MaintenanceUpdatePolicy",
+    )
+    maintenance_schedule: "MaintenanceSchedule" = proto.Field(
+        proto.MESSAGE,
+        number=37,
+        message="MaintenanceSchedule",
+    )
 
 
 class Instance(proto.Message):
@@ -1147,6 +1229,9 @@ class Instance(proto.Message):
         network_config (google.cloud.alloydb_v1beta.types.Instance.InstanceNetworkConfig):
             Optional. Instance level network
             configuration.
+        outbound_public_ip_addresses (MutableSequence[str]):
+            Output only. All outbound public IP addresses
+            configured for the instance.
     """
 
     class State(proto.Enum):
@@ -1312,7 +1397,7 @@ class QueryInsightsInstanceConfig(proto.Message):
             query_string_length (int):
                 Query string length. The default value is
                 1024. Any integer between 256 and 4500 is
-                    considered valid.
+                considered valid.
             query_plans_per_minute (int):
                 Number of query execution plans captured by
                 Insights per minute for all queries combined.
@@ -1514,6 +1599,10 @@ class InstanceNetworkConfig(proto.Message):
             enable_public_ip (bool):
                 Optional. Enabling public ip for the
                 instance.
+            enable_outbound_public_ip (bool):
+                Optional. Enabling an outbound public IP
+                address to support a database server sending
+                requests out into the internet.
         """
 
         class AuthorizedNetwork(proto.Message):
@@ -1542,6 +1631,10 @@ class AuthorizedNetwork(proto.Message):
             proto.BOOL,
             number=2,
         )
+        enable_outbound_public_ip: bool = proto.Field(
+            proto.BOOL,
+            number=3,
+        )
 
     name: str = proto.Field(
         proto.STRING,
@@ -1669,6 +1762,10 @@ class AuthorizedNetwork(proto.Message):
         number=29,
         message=InstanceNetworkConfig,
     )
+    outbound_public_ip_addresses: MutableSequence[str] = proto.RepeatedField(
+        proto.STRING,
+        number=34,
+    )
 
 
 class ConnectionInfo(proto.Message):
diff --git a/packages/google-cloud-alloydb/samples/generated_samples/snippet_metadata_google.cloud.alloydb.v1.json b/packages/google-cloud-alloydb/samples/generated_samples/snippet_metadata_google.cloud.alloydb.v1.json
index 1cb197a5b3b4..70a94ca97046 100644
--- a/packages/google-cloud-alloydb/samples/generated_samples/snippet_metadata_google.cloud.alloydb.v1.json
+++ b/packages/google-cloud-alloydb/samples/generated_samples/snippet_metadata_google.cloud.alloydb.v1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-alloydb",
-    "version": "0.1.0"
+    "version": "0.3.13"
   },
   "snippets": [
     {
diff --git a/packages/google-cloud-alloydb/samples/generated_samples/snippet_metadata_google.cloud.alloydb.v1alpha.json b/packages/google-cloud-alloydb/samples/generated_samples/snippet_metadata_google.cloud.alloydb.v1alpha.json
index d70e655d280d..1ed9939262fa 100644
--- a/packages/google-cloud-alloydb/samples/generated_samples/snippet_metadata_google.cloud.alloydb.v1alpha.json
+++ b/packages/google-cloud-alloydb/samples/generated_samples/snippet_metadata_google.cloud.alloydb.v1alpha.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-alloydb",
-    "version": "0.1.0"
+    "version": "0.3.13"
   },
   "snippets": [
     {
diff --git a/packages/google-cloud-alloydb/samples/generated_samples/snippet_metadata_google.cloud.alloydb.v1beta.json b/packages/google-cloud-alloydb/samples/generated_samples/snippet_metadata_google.cloud.alloydb.v1beta.json
index dc19bd4f2a54..8aac8040c177 100644
--- a/packages/google-cloud-alloydb/samples/generated_samples/snippet_metadata_google.cloud.alloydb.v1beta.json
+++ b/packages/google-cloud-alloydb/samples/generated_samples/snippet_metadata_google.cloud.alloydb.v1beta.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-alloydb",
-    "version": "0.1.0"
+    "version": "0.3.13"
   },
   "snippets": [
     {
diff --git a/packages/google-cloud-alloydb/tests/unit/gapic/alloydb_v1beta/test_alloy_db_admin.py b/packages/google-cloud-alloydb/tests/unit/gapic/alloydb_v1beta/test_alloy_db_admin.py
index 510dd441d48d..ab12494b9268 100644
--- a/packages/google-cloud-alloydb/tests/unit/gapic/alloydb_v1beta/test_alloy_db_admin.py
+++ b/packages/google-cloud-alloydb/tests/unit/gapic/alloydb_v1beta/test_alloy_db_admin.py
@@ -4942,6 +4942,7 @@ def test_get_instance(request_type, transport: str = "grpc"):
             reconciling=True,
             etag="etag_value",
             satisfies_pzs=True,
+            outbound_public_ip_addresses=["outbound_public_ip_addresses_value"],
         )
         response = client.get_instance(request)
 
@@ -4965,6 +4966,9 @@ def test_get_instance(request_type, transport: str = "grpc"):
     assert response.reconciling is True
     assert response.etag == "etag_value"
     assert response.satisfies_pzs is True
+    assert response.outbound_public_ip_addresses == [
+        "outbound_public_ip_addresses_value"
+    ]
 
 
 def test_get_instance_empty_call():
@@ -5075,6 +5079,7 @@ async def test_get_instance_empty_call_async():
                 reconciling=True,
                 etag="etag_value",
                 satisfies_pzs=True,
+                outbound_public_ip_addresses=["outbound_public_ip_addresses_value"],
             )
         )
         response = await client.get_instance()
@@ -5155,6 +5160,7 @@ async def test_get_instance_async(
                 reconciling=True,
                 etag="etag_value",
                 satisfies_pzs=True,
+                outbound_public_ip_addresses=["outbound_public_ip_addresses_value"],
             )
         )
         response = await client.get_instance(request)
@@ -5179,6 +5185,9 @@ async def test_get_instance_async(
     assert response.reconciling is True
     assert response.etag == "etag_value"
     assert response.satisfies_pzs is True
+    assert response.outbound_public_ip_addresses == [
+        "outbound_public_ip_addresses_value"
+    ]
 
 
 @pytest.mark.asyncio
@@ -15285,6 +15294,10 @@ def test_create_cluster_rest(request_type):
             ]
         },
         "satisfies_pzs": True,
+        "maintenance_update_policy": {
+            "maintenance_windows": [{"day": 1, "start_time": {}}]
+        },
+        "maintenance_schedule": {"start_time": {}},
     }
     # The version of a generated dependency at test runtime may differ from the version used during generation.
     # Delete any fields which are not present in the current runtime dependency
@@ -15766,6 +15779,10 @@ def test_update_cluster_rest(request_type):
             ]
         },
         "satisfies_pzs": True,
+        "maintenance_update_policy": {
+            "maintenance_windows": [{"day": 1, "start_time": {}}]
+        },
+        "maintenance_schedule": {"start_time": {}},
     }
     # The version of a generated dependency at test runtime may differ from the version used during generation.
     # Delete any fields which are not present in the current runtime dependency
@@ -17093,6 +17110,10 @@ def test_create_secondary_cluster_rest(request_type):
             ]
         },
         "satisfies_pzs": True,
+        "maintenance_update_policy": {
+            "maintenance_windows": [{"day": 1, "start_time": {}}]
+        },
+        "maintenance_schedule": {"start_time": {}},
     }
     # The version of a generated dependency at test runtime may differ from the version used during generation.
     # Delete any fields which are not present in the current runtime dependency
@@ -17909,6 +17930,7 @@ def test_get_instance_rest(request_type):
             reconciling=True,
             etag="etag_value",
             satisfies_pzs=True,
+            outbound_public_ip_addresses=["outbound_public_ip_addresses_value"],
         )
 
         # Wrap the value into a proper Response obj
@@ -17936,6 +17958,9 @@ def test_get_instance_rest(request_type):
     assert response.reconciling is True
     assert response.etag == "etag_value"
     assert response.satisfies_pzs is True
+    assert response.outbound_public_ip_addresses == [
+        "outbound_public_ip_addresses_value"
+    ]
 
 
 def test_get_instance_rest_use_cached_wrapped_rpc():
@@ -18283,7 +18308,12 @@ def test_create_instance_rest(request_type):
         "network_config": {
             "authorized_external_networks": [{"cidr_range": "cidr_range_value"}],
             "enable_public_ip": True,
+            "enable_outbound_public_ip": True,
         },
+        "outbound_public_ip_addresses": [
+            "outbound_public_ip_addresses_value1",
+            "outbound_public_ip_addresses_value2",
+        ],
     }
     # The version of a generated dependency at test runtime may differ from the version used during generation.
     # Delete any fields which are not present in the current runtime dependency
@@ -18759,7 +18789,12 @@ def test_create_secondary_instance_rest(request_type):
         "network_config": {
             "authorized_external_networks": [{"cidr_range": "cidr_range_value"}],
             "enable_public_ip": True,
+            "enable_outbound_public_ip": True,
         },
+        "outbound_public_ip_addresses": [
+            "outbound_public_ip_addresses_value1",
+            "outbound_public_ip_addresses_value2",
+        ],
     }
     # The version of a generated dependency at test runtime may differ from the version used during generation.
     # Delete any fields which are not present in the current runtime dependency
@@ -19249,7 +19284,12 @@ def test_batch_create_instances_rest(request_type):
                             {"cidr_range": "cidr_range_value"}
                         ],
                         "enable_public_ip": True,
+                        "enable_outbound_public_ip": True,
                     },
+                    "outbound_public_ip_addresses": [
+                        "outbound_public_ip_addresses_value1",
+                        "outbound_public_ip_addresses_value2",
+                    ],
                 },
                 "request_id": "request_id_value",
                 "validate_only": True,
@@ -19654,7 +19694,12 @@ def test_update_instance_rest(request_type):
         "network_config": {
             "authorized_external_networks": [{"cidr_range": "cidr_range_value"}],
             "enable_public_ip": True,
+            "enable_outbound_public_ip": True,
         },
+        "outbound_public_ip_addresses": [
+            "outbound_public_ip_addresses_value1",
+            "outbound_public_ip_addresses_value2",
+        ],
     }
     # The version of a generated dependency at test runtime may differ from the version used during generation.
     # Delete any fields which are not present in the current runtime dependency
diff --git a/packages/google-cloud-batch/CHANGELOG.md b/packages/google-cloud-batch/CHANGELOG.md
index ef34a533cfa8..addee943a3ea 100644
--- a/packages/google-cloud-batch/CHANGELOG.md
+++ b/packages/google-cloud-batch/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [0.17.27](https://github.com/googleapis/google-cloud-python/compare/google-cloud-batch-v0.17.26...google-cloud-batch-v0.17.27) (2024-09-03)
+
+
+### Features
+
+* **v1:** promote block_project_ssh_keys support to batch v1 API ([63a6de0](https://github.com/googleapis/google-cloud-python/commit/63a6de00b1c6e2b6289b4fa76468859c828cb363))
+
 ## [0.17.26](https://github.com/googleapis/google-cloud-python/compare/google-cloud-batch-v0.17.25...google-cloud-batch-v0.17.26) (2024-08-20)
 
 
diff --git a/packages/google-cloud-batch/google/cloud/batch/gapic_version.py b/packages/google-cloud-batch/google/cloud/batch/gapic_version.py
index e4b992ee0cd9..7de8a6a6838d 100644
--- a/packages/google-cloud-batch/google/cloud/batch/gapic_version.py
+++ b/packages/google-cloud-batch/google/cloud/batch/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "0.17.26"  # {x-release-please-version}
+__version__ = "0.17.27"  # {x-release-please-version}
diff --git a/packages/google-cloud-batch/google/cloud/batch_v1/gapic_version.py b/packages/google-cloud-batch/google/cloud/batch_v1/gapic_version.py
index e4b992ee0cd9..7de8a6a6838d 100644
--- a/packages/google-cloud-batch/google/cloud/batch_v1/gapic_version.py
+++ b/packages/google-cloud-batch/google/cloud/batch_v1/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "0.17.26"  # {x-release-please-version}
+__version__ = "0.17.27"  # {x-release-please-version}
diff --git a/packages/google-cloud-batch/google/cloud/batch_v1/types/job.py b/packages/google-cloud-batch/google/cloud/batch_v1/types/job.py
index 47abe1466463..c11a34f16b56 100644
--- a/packages/google-cloud-batch/google/cloud/batch_v1/types/job.py
+++ b/packages/google-cloud-batch/google/cloud/batch_v1/types/job.py
@@ -810,6 +810,26 @@ class InstancePolicyOrTemplate(proto.Message):
                 Optional. Set this field true if you want
                 Batch to install Ops Agent on your behalf.
                 Default is false.
+            block_project_ssh_keys (bool):
+                Optional. Set this field to ``true`` if you want Batch to
+                block project-level SSH keys from accessing this job's VMs.
+                Alternatively, you can configure the job to specify a VM
+                instance template that blocks project-level SSH keys. In
+                either case, Batch blocks project-level SSH keys while
+                creating the VMs for this job.
+
+                Batch allows project-level SSH keys for a job's VMs only if
+                all the following are true:
+
+                -  This field is undefined or set to ``false``.
+                -  The job's VM instance template (if any) doesn't block
+                   project-level SSH keys.
+
+                Notably, you can override this behavior by manually updating
+                a VM to block or allow project-level SSH keys. For more
+                information about blocking project-level SSH keys, see the
+                Compute Engine documentation:
+                https://cloud.google.com/compute/docs/connect/restrict-ssh-keys#block-keys
         """
 
         policy: "AllocationPolicy.InstancePolicy" = proto.Field(
@@ -831,6 +851,10 @@ class InstancePolicyOrTemplate(proto.Message):
             proto.BOOL,
             number=4,
         )
+        block_project_ssh_keys: bool = proto.Field(
+            proto.BOOL,
+            number=5,
+        )
 
     class NetworkInterface(proto.Message):
         r"""A network interface.
diff --git a/packages/google-cloud-batch/google/cloud/batch_v1alpha/gapic_version.py b/packages/google-cloud-batch/google/cloud/batch_v1alpha/gapic_version.py
index e4b992ee0cd9..7de8a6a6838d 100644
--- a/packages/google-cloud-batch/google/cloud/batch_v1alpha/gapic_version.py
+++ b/packages/google-cloud-batch/google/cloud/batch_v1alpha/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "0.17.26"  # {x-release-please-version}
+__version__ = "0.17.27"  # {x-release-please-version}
diff --git a/packages/google-cloud-batch/samples/generated_samples/snippet_metadata_google.cloud.batch.v1.json b/packages/google-cloud-batch/samples/generated_samples/snippet_metadata_google.cloud.batch.v1.json
index 32f12c161ccb..1a9ad7a0b658 100644
--- a/packages/google-cloud-batch/samples/generated_samples/snippet_metadata_google.cloud.batch.v1.json
+++ b/packages/google-cloud-batch/samples/generated_samples/snippet_metadata_google.cloud.batch.v1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-batch",
-    "version": "0.17.26"
+    "version": "0.17.27"
   },
   "snippets": [
     {
diff --git a/packages/google-cloud-batch/samples/generated_samples/snippet_metadata_google.cloud.batch.v1alpha.json b/packages/google-cloud-batch/samples/generated_samples/snippet_metadata_google.cloud.batch.v1alpha.json
index 889a0b1efe83..9c3638c4d767 100644
--- a/packages/google-cloud-batch/samples/generated_samples/snippet_metadata_google.cloud.batch.v1alpha.json
+++ b/packages/google-cloud-batch/samples/generated_samples/snippet_metadata_google.cloud.batch.v1alpha.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-batch",
-    "version": "0.17.26"
+    "version": "0.17.27"
   },
   "snippets": [
     {
diff --git a/packages/google-cloud-batch/tests/unit/gapic/batch_v1/test_batch_service.py b/packages/google-cloud-batch/tests/unit/gapic/batch_v1/test_batch_service.py
index 3a3cc5d39a91..d123a2803997 100644
--- a/packages/google-cloud-batch/tests/unit/gapic/batch_v1/test_batch_service.py
+++ b/packages/google-cloud-batch/tests/unit/gapic/batch_v1/test_batch_service.py
@@ -3867,6 +3867,7 @@ def test_create_job_rest(request_type):
                     "instance_template": "instance_template_value",
                     "install_gpu_drivers": True,
                     "install_ops_agent": True,
+                    "block_project_ssh_keys": True,
                 }
             ],
             "service_account": {
diff --git a/packages/google-cloud-bigquery-datatransfer/CHANGELOG.md b/packages/google-cloud-bigquery-datatransfer/CHANGELOG.md
index 649945d0a61f..953e701b7f5e 100644
--- a/packages/google-cloud-bigquery-datatransfer/CHANGELOG.md
+++ b/packages/google-cloud-bigquery-datatransfer/CHANGELOG.md
@@ -4,6 +4,13 @@
 
 [1]: https://pypi.org/project/google-cloud-bigquery-datatransfer/#history
 
+## [3.15.7](https://github.com/googleapis/google-cloud-python/compare/google-cloud-bigquery-datatransfer-v3.15.6...google-cloud-bigquery-datatransfer-v3.15.7) (2024-09-04)
+
+
+### Documentation
+
+* [google-cloud-bigquery-datatransfer] add a note to the CreateTransferConfigRequest and UpdateTransferConfigRequest to disable restricting service account usage ([#13051](https://github.com/googleapis/google-cloud-python/issues/13051)) ([4136c10](https://github.com/googleapis/google-cloud-python/commit/4136c10fabc1df012b028a5d407aaec326e448b6))
+
 ## [3.15.6](https://github.com/googleapis/google-cloud-python/compare/google-cloud-bigquery-datatransfer-v3.15.5...google-cloud-bigquery-datatransfer-v3.15.6) (2024-08-20)
 
 
diff --git a/packages/google-cloud-bigquery-datatransfer/google/cloud/bigquery_datatransfer/gapic_version.py b/packages/google-cloud-bigquery-datatransfer/google/cloud/bigquery_datatransfer/gapic_version.py
index 769a9d92f8cf..fc64b41dd679 100644
--- a/packages/google-cloud-bigquery-datatransfer/google/cloud/bigquery_datatransfer/gapic_version.py
+++ b/packages/google-cloud-bigquery-datatransfer/google/cloud/bigquery_datatransfer/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "3.15.6"  # {x-release-please-version}
+__version__ = "3.15.7"  # {x-release-please-version}
diff --git a/packages/google-cloud-bigquery-datatransfer/google/cloud/bigquery_datatransfer_v1/gapic_version.py b/packages/google-cloud-bigquery-datatransfer/google/cloud/bigquery_datatransfer_v1/gapic_version.py
index 769a9d92f8cf..fc64b41dd679 100644
--- a/packages/google-cloud-bigquery-datatransfer/google/cloud/bigquery_datatransfer_v1/gapic_version.py
+++ b/packages/google-cloud-bigquery-datatransfer/google/cloud/bigquery_datatransfer_v1/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "3.15.6"  # {x-release-please-version}
+__version__ = "3.15.7"  # {x-release-please-version}
diff --git a/packages/google-cloud-bigquery-datatransfer/google/cloud/bigquery_datatransfer_v1/services/data_transfer_service/async_client.py b/packages/google-cloud-bigquery-datatransfer/google/cloud/bigquery_datatransfer_v1/services/data_transfer_service/async_client.py
index 87ab9e5d50f5..ea32882077da 100644
--- a/packages/google-cloud-bigquery-datatransfer/google/cloud/bigquery_datatransfer_v1/services/data_transfer_service/async_client.py
+++ b/packages/google-cloud-bigquery-datatransfer/google/cloud/bigquery_datatransfer_v1/services/data_transfer_service/async_client.py
@@ -554,17 +554,20 @@ async def sample_create_transfer_config():
 
         Args:
             request (Optional[Union[google.cloud.bigquery_datatransfer_v1.types.CreateTransferConfigRequest, dict]]):
-                The request object. A request to create a data transfer
-                configuration. If new credentials are
-                needed for this transfer configuration,
-                authorization info must be provided. If
-                authorization info is provided, the
-                transfer configuration will be
-                associated with the user id
-                corresponding to the authorization info.
-                Otherwise, the transfer configuration
-                will be associated with the calling
-                user.
+                The request object. A request to create a data transfer configuration. If
+                new credentials are needed for this transfer
+                configuration, authorization info must be provided. If
+                authorization info is provided, the transfer
+                configuration will be associated with the user id
+                corresponding to the authorization info. Otherwise, the
+                transfer configuration will be associated with the
+                calling user.
+
+                When using a cross project service account for creating
+                a transfer config, you must enable cross project service
+                account usage. For more information, see `Disable
+                attachment of service accounts to resources in other
+                projects <https://cloud.google.com/resource-manager/docs/organization-policy/restricting-service-accounts#disable_cross_project_service_accounts>`__.
             parent (:class:`str`):
                 Required. The BigQuery project id where the transfer
                 configuration should be created. Must be in the format
@@ -693,10 +696,15 @@ async def sample_update_transfer_config():
 
         Args:
             request (Optional[Union[google.cloud.bigquery_datatransfer_v1.types.UpdateTransferConfigRequest, dict]]):
-                The request object. A request to update a transfer
-                configuration. To update the user id of
-                the transfer configuration,
-                authorization info needs to be provided.
+                The request object. A request to update a transfer configuration. To update
+                the user id of the transfer configuration, authorization
+                info needs to be provided.
+
+                When using a cross project service account for updating
+                a transfer config, you must enable cross project service
+                account usage. For more information, see `Disable
+                attachment of service accounts to resources in other
+                projects <https://cloud.google.com/resource-manager/docs/organization-policy/restricting-service-accounts#disable_cross_project_service_accounts>`__.
             transfer_config (:class:`google.cloud.bigquery_datatransfer_v1.types.TransferConfig`):
                 Required. Data transfer configuration
                 to create.
diff --git a/packages/google-cloud-bigquery-datatransfer/google/cloud/bigquery_datatransfer_v1/services/data_transfer_service/client.py b/packages/google-cloud-bigquery-datatransfer/google/cloud/bigquery_datatransfer_v1/services/data_transfer_service/client.py
index 7bf64c346481..b5032cd300f4 100644
--- a/packages/google-cloud-bigquery-datatransfer/google/cloud/bigquery_datatransfer_v1/services/data_transfer_service/client.py
+++ b/packages/google-cloud-bigquery-datatransfer/google/cloud/bigquery_datatransfer_v1/services/data_transfer_service/client.py
@@ -1002,17 +1002,20 @@ def sample_create_transfer_config():
 
         Args:
             request (Union[google.cloud.bigquery_datatransfer_v1.types.CreateTransferConfigRequest, dict]):
-                The request object. A request to create a data transfer
-                configuration. If new credentials are
-                needed for this transfer configuration,
-                authorization info must be provided. If
-                authorization info is provided, the
-                transfer configuration will be
-                associated with the user id
-                corresponding to the authorization info.
-                Otherwise, the transfer configuration
-                will be associated with the calling
-                user.
+                The request object. A request to create a data transfer configuration. If
+                new credentials are needed for this transfer
+                configuration, authorization info must be provided. If
+                authorization info is provided, the transfer
+                configuration will be associated with the user id
+                corresponding to the authorization info. Otherwise, the
+                transfer configuration will be associated with the
+                calling user.
+
+                When using a cross project service account for creating
+                a transfer config, you must enable cross project service
+                account usage. For more information, see `Disable
+                attachment of service accounts to resources in other
+                projects <https://cloud.google.com/resource-manager/docs/organization-policy/restricting-service-accounts#disable_cross_project_service_accounts>`__.
             parent (str):
                 Required. The BigQuery project id where the transfer
                 configuration should be created. Must be in the format
@@ -1138,10 +1141,15 @@ def sample_update_transfer_config():
 
         Args:
             request (Union[google.cloud.bigquery_datatransfer_v1.types.UpdateTransferConfigRequest, dict]):
-                The request object. A request to update a transfer
-                configuration. To update the user id of
-                the transfer configuration,
-                authorization info needs to be provided.
+                The request object. A request to update a transfer configuration. To update
+                the user id of the transfer configuration, authorization
+                info needs to be provided.
+
+                When using a cross project service account for updating
+                a transfer config, you must enable cross project service
+                account usage. For more information, see `Disable
+                attachment of service accounts to resources in other
+                projects <https://cloud.google.com/resource-manager/docs/organization-policy/restricting-service-accounts#disable_cross_project_service_accounts>`__.
             transfer_config (google.cloud.bigquery_datatransfer_v1.types.TransferConfig):
                 Required. Data transfer configuration
                 to create.
diff --git a/packages/google-cloud-bigquery-datatransfer/google/cloud/bigquery_datatransfer_v1/services/data_transfer_service/transports/rest.py b/packages/google-cloud-bigquery-datatransfer/google/cloud/bigquery_datatransfer_v1/services/data_transfer_service/transports/rest.py
index cd9e0af0c4d2..91347f2be728 100644
--- a/packages/google-cloud-bigquery-datatransfer/google/cloud/bigquery_datatransfer_v1/services/data_transfer_service/transports/rest.py
+++ b/packages/google-cloud-bigquery-datatransfer/google/cloud/bigquery_datatransfer_v1/services/data_transfer_service/transports/rest.py
@@ -789,17 +789,20 @@ def __call__(
 
             Args:
                 request (~.datatransfer.CreateTransferConfigRequest):
-                    The request object. A request to create a data transfer
-                configuration. If new credentials are
-                needed for this transfer configuration,
-                authorization info must be provided. If
-                authorization info is provided, the
-                transfer configuration will be
-                associated with the user id
-                corresponding to the authorization info.
-                Otherwise, the transfer configuration
-                will be associated with the calling
-                user.
+                    The request object. A request to create a data transfer configuration. If
+                new credentials are needed for this transfer
+                configuration, authorization info must be provided. If
+                authorization info is provided, the transfer
+                configuration will be associated with the user id
+                corresponding to the authorization info. Otherwise, the
+                transfer configuration will be associated with the
+                calling user.
+
+                When using a cross project service account for creating
+                a transfer config, you must enable cross project service
+                account usage. For more information, see `Disable
+                attachment of service accounts to resources in other
+                projects <https://cloud.google.com/resource-manager/docs/organization-policy/restricting-service-accounts#disable_cross_project_service_accounts>`__.
                 retry (google.api_core.retry.Retry): Designation of what errors, if any,
                     should be retried.
                 timeout (float): The timeout for this request.
@@ -2104,10 +2107,15 @@ def __call__(
 
             Args:
                 request (~.datatransfer.UpdateTransferConfigRequest):
-                    The request object. A request to update a transfer
-                configuration. To update the user id of
-                the transfer configuration,
-                authorization info needs to be provided.
+                    The request object. A request to update a transfer configuration. To update
+                the user id of the transfer configuration, authorization
+                info needs to be provided.
+
+                When using a cross project service account for updating
+                a transfer config, you must enable cross project service
+                account usage. For more information, see `Disable
+                attachment of service accounts to resources in other
+                projects <https://cloud.google.com/resource-manager/docs/organization-policy/restricting-service-accounts#disable_cross_project_service_accounts>`__.
                 retry (google.api_core.retry.Retry): Designation of what errors, if any,
                     should be retried.
                 timeout (float): The timeout for this request.
diff --git a/packages/google-cloud-bigquery-datatransfer/google/cloud/bigquery_datatransfer_v1/types/datatransfer.py b/packages/google-cloud-bigquery-datatransfer/google/cloud/bigquery_datatransfer_v1/types/datatransfer.py
index 30e607bd0c09..e0319b78c3e9 100644
--- a/packages/google-cloud-bigquery-datatransfer/google/cloud/bigquery_datatransfer_v1/types/datatransfer.py
+++ b/packages/google-cloud-bigquery-datatransfer/google/cloud/bigquery_datatransfer_v1/types/datatransfer.py
@@ -480,6 +480,12 @@ class CreateTransferConfigRequest(proto.Message):
     user id corresponding to the authorization info. Otherwise, the
     transfer configuration will be associated with the calling user.
 
+    When using a cross project service account for creating a transfer
+    config, you must enable cross project service account usage. For
+    more information, see `Disable attachment of service accounts to
+    resources in other
+    projects <https://cloud.google.com/resource-manager/docs/organization-policy/restricting-service-accounts#disable_cross_project_service_accounts>`__.
+
     Attributes:
         parent (str):
             Required. The BigQuery project id where the transfer
@@ -577,9 +583,15 @@ class CreateTransferConfigRequest(proto.Message):
 
 
 class UpdateTransferConfigRequest(proto.Message):
-    r"""A request to update a transfer configuration. To update the
-    user id of the transfer configuration, authorization info needs
-    to be provided.
+    r"""A request to update a transfer configuration. To update the user id
+    of the transfer configuration, authorization info needs to be
+    provided.
+
+    When using a cross project service account for updating a transfer
+    config, you must enable cross project service account usage. For
+    more information, see `Disable attachment of service accounts to
+    resources in other
+    projects <https://cloud.google.com/resource-manager/docs/organization-policy/restricting-service-accounts#disable_cross_project_service_accounts>`__.
 
     Attributes:
         transfer_config (google.cloud.bigquery_datatransfer_v1.types.TransferConfig):
diff --git a/packages/google-cloud-bigquery-datatransfer/samples/generated_samples/snippet_metadata_google.cloud.bigquery.datatransfer.v1.json b/packages/google-cloud-bigquery-datatransfer/samples/generated_samples/snippet_metadata_google.cloud.bigquery.datatransfer.v1.json
index 1fbf5757f11d..da58d7e46817 100644
--- a/packages/google-cloud-bigquery-datatransfer/samples/generated_samples/snippet_metadata_google.cloud.bigquery.datatransfer.v1.json
+++ b/packages/google-cloud-bigquery-datatransfer/samples/generated_samples/snippet_metadata_google.cloud.bigquery.datatransfer.v1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-bigquery-datatransfer",
-    "version": "3.15.6"
+    "version": "3.15.7"
   },
   "snippets": [
     {
diff --git a/packages/google-cloud-container/CHANGELOG.md b/packages/google-cloud-container/CHANGELOG.md
index d939cc42c90a..c39b8c48144d 100644
--- a/packages/google-cloud-container/CHANGELOG.md
+++ b/packages/google-cloud-container/CHANGELOG.md
@@ -4,6 +4,14 @@
 
 [1]: https://pypi.org/project/google-cloud-container/#history
 
+## [2.51.0](https://github.com/googleapis/google-cloud-python/compare/google-cloud-container-v2.50.0...google-cloud-container-v2.51.0) (2024-09-03)
+
+
+### Features
+
+* add `EXTENDED` enum value for `ReleaseChannel.Channel` ([ea71725](https://github.com/googleapis/google-cloud-python/commit/ea71725d3fe3bde0afd775d20127bed958e8eb8e))
+* add ReleaseChannel EXTENDED value ([ea71725](https://github.com/googleapis/google-cloud-python/commit/ea71725d3fe3bde0afd775d20127bed958e8eb8e))
+
 ## [2.50.0](https://github.com/googleapis/google-cloud-python/compare/google-cloud-container-v2.49.0...google-cloud-container-v2.50.0) (2024-07-30)
 
 
diff --git a/packages/google-cloud-container/google/cloud/container/gapic_version.py b/packages/google-cloud-container/google/cloud/container/gapic_version.py
index 558c8aab67c5..a08d6ef9b30b 100644
--- a/packages/google-cloud-container/google/cloud/container/gapic_version.py
+++ b/packages/google-cloud-container/google/cloud/container/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "0.0.0"  # {x-release-please-version}
+__version__ = "2.51.0"  # {x-release-please-version}
diff --git a/packages/google-cloud-container/google/cloud/container_v1/gapic_version.py b/packages/google-cloud-container/google/cloud/container_v1/gapic_version.py
index 558c8aab67c5..a08d6ef9b30b 100644
--- a/packages/google-cloud-container/google/cloud/container_v1/gapic_version.py
+++ b/packages/google-cloud-container/google/cloud/container_v1/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "0.0.0"  # {x-release-please-version}
+__version__ = "2.51.0"  # {x-release-please-version}
diff --git a/packages/google-cloud-container/google/cloud/container_v1/types/cluster_service.py b/packages/google-cloud-container/google/cloud/container_v1/types/cluster_service.py
index e5d04d99d2eb..20d4fb52446a 100644
--- a/packages/google-cloud-container/google/cloud/container_v1/types/cluster_service.py
+++ b/packages/google-cloud-container/google/cloud/container_v1/types/cluster_service.py
@@ -8388,11 +8388,17 @@ class Channel(proto.Enum):
                 Clusters subscribed to STABLE receive
                 versions that are known to be stable and
                 reliable in production.
+            EXTENDED (4):
+                Clusters subscribed to EXTENDED receive
+                extended support and availability for versions
+                which are known to be stable and reliable in
+                production.
         """
         UNSPECIFIED = 0
         RAPID = 1
         REGULAR = 2
         STABLE = 3
+        EXTENDED = 4
 
     channel: Channel = proto.Field(
         proto.ENUM,
diff --git a/packages/google-cloud-container/google/cloud/container_v1beta1/gapic_version.py b/packages/google-cloud-container/google/cloud/container_v1beta1/gapic_version.py
index 558c8aab67c5..a08d6ef9b30b 100644
--- a/packages/google-cloud-container/google/cloud/container_v1beta1/gapic_version.py
+++ b/packages/google-cloud-container/google/cloud/container_v1beta1/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "0.0.0"  # {x-release-please-version}
+__version__ = "2.51.0"  # {x-release-please-version}
diff --git a/packages/google-cloud-container/google/cloud/container_v1beta1/types/cluster_service.py b/packages/google-cloud-container/google/cloud/container_v1beta1/types/cluster_service.py
index 04e05220a931..f6187795c40e 100644
--- a/packages/google-cloud-container/google/cloud/container_v1beta1/types/cluster_service.py
+++ b/packages/google-cloud-container/google/cloud/container_v1beta1/types/cluster_service.py
@@ -10166,11 +10166,17 @@ class Channel(proto.Enum):
                 Clusters subscribed to STABLE receive
                 versions that are known to be stable and
                 reliable in production.
+            EXTENDED (4):
+                Clusters subscribed to EXTENDED receive
+                extended support and availability for versions
+                which are known to be stable and reliable in
+                production.
         """
         UNSPECIFIED = 0
         RAPID = 1
         REGULAR = 2
         STABLE = 3
+        EXTENDED = 4
 
     channel: Channel = proto.Field(
         proto.ENUM,
diff --git a/packages/google-cloud-container/samples/generated_samples/snippet_metadata_google.container.v1.json b/packages/google-cloud-container/samples/generated_samples/snippet_metadata_google.container.v1.json
index 2a343a6434fa..b317d472f3e2 100644
--- a/packages/google-cloud-container/samples/generated_samples/snippet_metadata_google.container.v1.json
+++ b/packages/google-cloud-container/samples/generated_samples/snippet_metadata_google.container.v1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-container",
-    "version": "0.1.0"
+    "version": "2.51.0"
   },
   "snippets": [
     {
diff --git a/packages/google-cloud-container/samples/generated_samples/snippet_metadata_google.container.v1beta1.json b/packages/google-cloud-container/samples/generated_samples/snippet_metadata_google.container.v1beta1.json
index afdb562b267e..f6b08f446330 100644
--- a/packages/google-cloud-container/samples/generated_samples/snippet_metadata_google.container.v1beta1.json
+++ b/packages/google-cloud-container/samples/generated_samples/snippet_metadata_google.container.v1beta1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-container",
-    "version": "0.1.0"
+    "version": "2.51.0"
   },
   "snippets": [
     {
diff --git a/packages/google-cloud-dataproc/CHANGELOG.md b/packages/google-cloud-dataproc/CHANGELOG.md
index d912ceecb20e..00b658392846 100644
--- a/packages/google-cloud-dataproc/CHANGELOG.md
+++ b/packages/google-cloud-dataproc/CHANGELOG.md
@@ -4,6 +4,13 @@
 
 [1]: https://pypi.org/project/google-cloud-dataproc/#history
 
+## [5.11.0](https://github.com/googleapis/google-cloud-python/compare/google-cloud-dataproc-v5.10.2...google-cloud-dataproc-v5.11.0) (2024-09-03)
+
+
+### Features
+
+* add optional parameters (tarball-access) in DiagnoseClusterRequest ([127e5c0](https://github.com/googleapis/google-cloud-python/commit/127e5c097b08042989c124ac4cdfb5147181855d))
+
 ## [5.10.2](https://github.com/googleapis/google-cloud-python/compare/google-cloud-dataproc-v5.10.1...google-cloud-dataproc-v5.10.2) (2024-07-30)
 
 
diff --git a/packages/google-cloud-dataproc/google/cloud/dataproc/gapic_version.py b/packages/google-cloud-dataproc/google/cloud/dataproc/gapic_version.py
index 558c8aab67c5..0f412e925d59 100644
--- a/packages/google-cloud-dataproc/google/cloud/dataproc/gapic_version.py
+++ b/packages/google-cloud-dataproc/google/cloud/dataproc/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "0.0.0"  # {x-release-please-version}
+__version__ = "5.11.0"  # {x-release-please-version}
diff --git a/packages/google-cloud-dataproc/google/cloud/dataproc_v1/gapic_version.py b/packages/google-cloud-dataproc/google/cloud/dataproc_v1/gapic_version.py
index 558c8aab67c5..0f412e925d59 100644
--- a/packages/google-cloud-dataproc/google/cloud/dataproc_v1/gapic_version.py
+++ b/packages/google-cloud-dataproc/google/cloud/dataproc_v1/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "0.0.0"  # {x-release-please-version}
+__version__ = "5.11.0"  # {x-release-please-version}
diff --git a/packages/google-cloud-dataproc/google/cloud/dataproc_v1/types/clusters.py b/packages/google-cloud-dataproc/google/cloud/dataproc_v1/types/clusters.py
index ec33ae97f36c..b6e60e1765c0 100644
--- a/packages/google-cloud-dataproc/google/cloud/dataproc_v1/types/clusters.py
+++ b/packages/google-cloud-dataproc/google/cloud/dataproc_v1/types/clusters.py
@@ -2397,6 +2397,10 @@ class DiagnoseClusterRequest(proto.Message):
             for the diagnostic tarball. If not specified, a
             task-specific directory in the cluster's staging
             bucket will be used.
+        tarball_access (google.cloud.dataproc_v1.types.DiagnoseClusterRequest.TarballAccess):
+            Optional. (Optional) The access type to the
+            diagnostic tarball. If not specified, falls back
+            to default access of the bucket
         diagnosis_interval (google.type.interval_pb2.Interval):
             Optional. Time interval in which diagnosis
             should be carried out on the cluster.
@@ -2410,6 +2414,25 @@ class DiagnoseClusterRequest(proto.Message):
             performed.
     """
 
+    class TarballAccess(proto.Enum):
+        r"""Defines who has access to the diagnostic tarball
+
+        Values:
+            TARBALL_ACCESS_UNSPECIFIED (0):
+                Tarball Access unspecified. Falls back to
+                default access of the bucket
+            GOOGLE_CLOUD_SUPPORT (1):
+                Google Cloud Support group has read access to
+                the diagnostic tarball
+            GOOGLE_DATAPROC_DIAGNOSE (2):
+                Google Cloud Dataproc Diagnose service
+                account has read access to the diagnostic
+                tarball
+        """
+        TARBALL_ACCESS_UNSPECIFIED = 0
+        GOOGLE_CLOUD_SUPPORT = 1
+        GOOGLE_DATAPROC_DIAGNOSE = 2
+
     project_id: str = proto.Field(
         proto.STRING,
         number=1,
@@ -2426,6 +2449,11 @@ class DiagnoseClusterRequest(proto.Message):
         proto.STRING,
         number=4,
     )
+    tarball_access: TarballAccess = proto.Field(
+        proto.ENUM,
+        number=5,
+        enum=TarballAccess,
+    )
     diagnosis_interval: interval_pb2.Interval = proto.Field(
         proto.MESSAGE,
         number=6,
diff --git a/packages/google-cloud-dataproc/samples/generated_samples/snippet_metadata_google.cloud.dataproc.v1.json b/packages/google-cloud-dataproc/samples/generated_samples/snippet_metadata_google.cloud.dataproc.v1.json
index c5f4e003db04..c1b4b338fe39 100644
--- a/packages/google-cloud-dataproc/samples/generated_samples/snippet_metadata_google.cloud.dataproc.v1.json
+++ b/packages/google-cloud-dataproc/samples/generated_samples/snippet_metadata_google.cloud.dataproc.v1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-dataproc",
-    "version": "0.1.0"
+    "version": "5.11.0"
   },
   "snippets": [
     {
diff --git a/packages/google-cloud-dataproc/scripts/fixup_dataproc_v1_keywords.py b/packages/google-cloud-dataproc/scripts/fixup_dataproc_v1_keywords.py
index 0a6aa2e35d07..565665908c4f 100644
--- a/packages/google-cloud-dataproc/scripts/fixup_dataproc_v1_keywords.py
+++ b/packages/google-cloud-dataproc/scripts/fixup_dataproc_v1_keywords.py
@@ -54,7 +54,7 @@ class dataprocCallTransformer(cst.CSTTransformer):
         'delete_session': ('name', 'request_id', ),
         'delete_session_template': ('name', ),
         'delete_workflow_template': ('name', 'version', ),
-        'diagnose_cluster': ('project_id', 'region', 'cluster_name', 'tarball_gcs_dir', 'diagnosis_interval', 'jobs', 'yarn_application_ids', ),
+        'diagnose_cluster': ('project_id', 'region', 'cluster_name', 'tarball_gcs_dir', 'tarball_access', 'diagnosis_interval', 'jobs', 'yarn_application_ids', ),
         'get_autoscaling_policy': ('name', ),
         'get_batch': ('name', ),
         'get_cluster': ('project_id', 'region', 'cluster_name', ),
diff --git a/packages/google-cloud-discoveryengine/CHANGELOG.md b/packages/google-cloud-discoveryengine/CHANGELOG.md
index 06c234fed935..51aeebeac072 100644
--- a/packages/google-cloud-discoveryengine/CHANGELOG.md
+++ b/packages/google-cloud-discoveryengine/CHANGELOG.md
@@ -1,5 +1,38 @@
 # Changelog
 
+## [0.12.2](https://github.com/googleapis/google-cloud-python/compare/google-cloud-discoveryengine-v0.12.1...google-cloud-discoveryengine-v0.12.2) (2024-09-04)
+
+
+### Features
+
+* **v1alpha:** return index status in document ([51947fb](https://github.com/googleapis/google-cloud-python/commit/51947fb5913a3859ee45cd66a0dbad51a84cebe9))
+* **v1alpha:** return joined status in user event ([51947fb](https://github.com/googleapis/google-cloud-python/commit/51947fb5913a3859ee45cd66a0dbad51a84cebe9))
+* **v1alpha:** return query segment in NL query understanding ([51947fb](https://github.com/googleapis/google-cloud-python/commit/51947fb5913a3859ee45cd66a0dbad51a84cebe9))
+* **v1alpha:** support batch get documents metadata by uri patterns ([51947fb](https://github.com/googleapis/google-cloud-python/commit/51947fb5913a3859ee45cd66a0dbad51a84cebe9))
+* **v1alpha:** support creating workspace search data stores ([51947fb](https://github.com/googleapis/google-cloud-python/commit/51947fb5913a3859ee45cd66a0dbad51a84cebe9))
+* **v1beta:** allow set relevance threshold on search ([51947fb](https://github.com/googleapis/google-cloud-python/commit/51947fb5913a3859ee45cd66a0dbad51a84cebe9))
+* **v1beta:** return index status in document ([51947fb](https://github.com/googleapis/google-cloud-python/commit/51947fb5913a3859ee45cd66a0dbad51a84cebe9))
+* **v1beta:** return joined status in user event ([51947fb](https://github.com/googleapis/google-cloud-python/commit/51947fb5913a3859ee45cd66a0dbad51a84cebe9))
+* **v1beta:** return structured document info in answers ([51947fb](https://github.com/googleapis/google-cloud-python/commit/51947fb5913a3859ee45cd66a0dbad51a84cebe9))
+* **v1beta:** support batch documents purge with GCS input ([51947fb](https://github.com/googleapis/google-cloud-python/commit/51947fb5913a3859ee45cd66a0dbad51a84cebe9))
+* **v1beta:** support batch get documents metadata by uri patterns ([51947fb](https://github.com/googleapis/google-cloud-python/commit/51947fb5913a3859ee45cd66a0dbad51a84cebe9))
+* **v1beta:** support natural language understanding in search ([51947fb](https://github.com/googleapis/google-cloud-python/commit/51947fb5913a3859ee45cd66a0dbad51a84cebe9))
+* **v1beta:** support one box search ([51947fb](https://github.com/googleapis/google-cloud-python/commit/51947fb5913a3859ee45cd66a0dbad51a84cebe9))
+* **v1:** promot user event purge to v1 ([51947fb](https://github.com/googleapis/google-cloud-python/commit/51947fb5913a3859ee45cd66a0dbad51a84cebe9))
+* **v1:** promote search tuning service to v1 ([51947fb](https://github.com/googleapis/google-cloud-python/commit/51947fb5913a3859ee45cd66a0dbad51a84cebe9))
+* **v1:** return index status in document ([51947fb](https://github.com/googleapis/google-cloud-python/commit/51947fb5913a3859ee45cd66a0dbad51a84cebe9))
+* **v1:** return joined status in user event ([51947fb](https://github.com/googleapis/google-cloud-python/commit/51947fb5913a3859ee45cd66a0dbad51a84cebe9))
+* **v1:** return structured document info in answers ([51947fb](https://github.com/googleapis/google-cloud-python/commit/51947fb5913a3859ee45cd66a0dbad51a84cebe9))
+* **v1:** support batch documents purge with GCS input ([51947fb](https://github.com/googleapis/google-cloud-python/commit/51947fb5913a3859ee45cd66a0dbad51a84cebe9))
+* **v1:** support batch get documents metadata by uri patterns ([51947fb](https://github.com/googleapis/google-cloud-python/commit/51947fb5913a3859ee45cd66a0dbad51a84cebe9))
+
+
+### Documentation
+
+* **v1alpha:** keep the API doc up-to-date with recent changes ([51947fb](https://github.com/googleapis/google-cloud-python/commit/51947fb5913a3859ee45cd66a0dbad51a84cebe9))
+* **v1beta:** keep the API doc up-to-date with recent changes ([51947fb](https://github.com/googleapis/google-cloud-python/commit/51947fb5913a3859ee45cd66a0dbad51a84cebe9))
+* **v1:** keep the API doc up-to-date with recent changes ([51947fb](https://github.com/googleapis/google-cloud-python/commit/51947fb5913a3859ee45cd66a0dbad51a84cebe9))
+
 ## [0.12.1](https://github.com/googleapis/google-cloud-python/compare/google-cloud-discoveryengine-v0.12.0...google-cloud-discoveryengine-v0.12.1) (2024-08-08)
 
 
diff --git a/packages/google-cloud-discoveryengine/docs/discoveryengine_v1/search_tuning_service.rst b/packages/google-cloud-discoveryengine/docs/discoveryengine_v1/search_tuning_service.rst
new file mode 100644
index 000000000000..02b0fe7ef583
--- /dev/null
+++ b/packages/google-cloud-discoveryengine/docs/discoveryengine_v1/search_tuning_service.rst
@@ -0,0 +1,6 @@
+SearchTuningService
+-------------------------------------
+
+.. automodule:: google.cloud.discoveryengine_v1.services.search_tuning_service
+    :members:
+    :inherited-members:
diff --git a/packages/google-cloud-discoveryengine/docs/discoveryengine_v1/services_.rst b/packages/google-cloud-discoveryengine/docs/discoveryengine_v1/services_.rst
index 6e0bbcda2e72..411ae24c92cc 100644
--- a/packages/google-cloud-discoveryengine/docs/discoveryengine_v1/services_.rst
+++ b/packages/google-cloud-discoveryengine/docs/discoveryengine_v1/services_.rst
@@ -15,5 +15,6 @@ Services for Google Cloud Discoveryengine v1 API
     recommendation_service
     schema_service
     search_service
+    search_tuning_service
     site_search_engine_service
     user_event_service
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine/__init__.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine/__init__.py
index 42959becdbfc..48c89d24d6f4 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine/__init__.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine/__init__.py
@@ -208,6 +208,8 @@
     DocumentProcessingConfig,
 )
 from google.cloud.discoveryengine_v1beta.types.document_service import (
+    BatchGetDocumentsMetadataRequest,
+    BatchGetDocumentsMetadataResponse,
     CreateDocumentRequest,
     DeleteDocumentRequest,
     GetDocumentRequest,
@@ -289,6 +291,7 @@
     PurgeDocumentsMetadata,
     PurgeDocumentsRequest,
     PurgeDocumentsResponse,
+    PurgeErrorConfig,
     PurgeSuggestionDenyListEntriesMetadata,
     PurgeSuggestionDenyListEntriesRequest,
     PurgeSuggestionDenyListEntriesResponse,
@@ -501,6 +504,8 @@
     "UpdateDataStoreRequest",
     "Document",
     "DocumentProcessingConfig",
+    "BatchGetDocumentsMetadataRequest",
+    "BatchGetDocumentsMetadataResponse",
     "CreateDocumentRequest",
     "DeleteDocumentRequest",
     "GetDocumentRequest",
@@ -569,6 +574,7 @@
     "PurgeDocumentsMetadata",
     "PurgeDocumentsRequest",
     "PurgeDocumentsResponse",
+    "PurgeErrorConfig",
     "PurgeSuggestionDenyListEntriesMetadata",
     "PurgeSuggestionDenyListEntriesRequest",
     "PurgeSuggestionDenyListEntriesResponse",
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine/gapic_version.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine/gapic_version.py
index 558c8aab67c5..9e3a3e937556 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine/gapic_version.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "0.0.0"  # {x-release-please-version}
+__version__ = "0.12.2"  # {x-release-please-version}
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/__init__.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/__init__.py
index e06104fe1669..261c72ef4b22 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/__init__.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/__init__.py
@@ -45,6 +45,10 @@
 )
 from .services.schema_service import SchemaServiceAsyncClient, SchemaServiceClient
 from .services.search_service import SearchServiceAsyncClient, SearchServiceClient
+from .services.search_tuning_service import (
+    SearchTuningServiceAsyncClient,
+    SearchTuningServiceClient,
+)
 from .services.site_search_engine_service import (
     SiteSearchEngineServiceAsyncClient,
     SiteSearchEngineServiceClient,
@@ -102,6 +106,7 @@
     UpdateConversationRequest,
     UpdateSessionRequest,
 )
+from .types.custom_tuning_model import CustomTuningModel
 from .types.data_store import DataStore
 from .types.data_store_service import (
     CreateDataStoreMetadata,
@@ -116,6 +121,8 @@
 from .types.document import Document
 from .types.document_processing_config import DocumentProcessingConfig
 from .types.document_service import (
+    BatchGetDocumentsMetadataRequest,
+    BatchGetDocumentsMetadataResponse,
     CreateDocumentRequest,
     DeleteDocumentRequest,
     GetDocumentRequest,
@@ -173,9 +180,13 @@
     PurgeDocumentsMetadata,
     PurgeDocumentsRequest,
     PurgeDocumentsResponse,
+    PurgeErrorConfig,
     PurgeSuggestionDenyListEntriesMetadata,
     PurgeSuggestionDenyListEntriesRequest,
     PurgeSuggestionDenyListEntriesResponse,
+    PurgeUserEventsMetadata,
+    PurgeUserEventsRequest,
+    PurgeUserEventsResponse,
 )
 from .types.rank_service import RankingRecord, RankRequest, RankResponse
 from .types.recommendation_service import RecommendRequest, RecommendResponse
@@ -192,6 +203,13 @@
     UpdateSchemaRequest,
 )
 from .types.search_service import SearchRequest, SearchResponse
+from .types.search_tuning_service import (
+    ListCustomModelsRequest,
+    ListCustomModelsResponse,
+    TrainCustomModelMetadata,
+    TrainCustomModelRequest,
+    TrainCustomModelResponse,
+)
 from .types.session import Query, Session
 from .types.site_search_engine import SiteSearchEngine, SiteVerificationInfo, TargetSite
 from .types.site_search_engine_service import (
@@ -248,6 +266,7 @@
     "RecommendationServiceAsyncClient",
     "SchemaServiceAsyncClient",
     "SearchServiceAsyncClient",
+    "SearchTuningServiceAsyncClient",
     "SiteSearchEngineServiceAsyncClient",
     "UserEventServiceAsyncClient",
     "AlloyDbSource",
@@ -257,6 +276,8 @@
     "BatchCreateTargetSiteMetadata",
     "BatchCreateTargetSitesRequest",
     "BatchCreateTargetSitesResponse",
+    "BatchGetDocumentsMetadataRequest",
+    "BatchGetDocumentsMetadataResponse",
     "BatchVerifyTargetSitesMetadata",
     "BatchVerifyTargetSitesRequest",
     "BatchVerifyTargetSitesResponse",
@@ -296,6 +317,7 @@
     "CreateTargetSiteMetadata",
     "CreateTargetSiteRequest",
     "CustomAttribute",
+    "CustomTuningModel",
     "DataStore",
     "DataStoreServiceClient",
     "DeleteControlRequest",
@@ -359,6 +381,8 @@
     "ListControlsResponse",
     "ListConversationsRequest",
     "ListConversationsResponse",
+    "ListCustomModelsRequest",
+    "ListCustomModelsResponse",
     "ListDataStoresRequest",
     "ListDataStoresResponse",
     "ListDocumentsRequest",
@@ -384,9 +408,13 @@
     "PurgeDocumentsMetadata",
     "PurgeDocumentsRequest",
     "PurgeDocumentsResponse",
+    "PurgeErrorConfig",
     "PurgeSuggestionDenyListEntriesMetadata",
     "PurgeSuggestionDenyListEntriesRequest",
     "PurgeSuggestionDenyListEntriesResponse",
+    "PurgeUserEventsMetadata",
+    "PurgeUserEventsRequest",
+    "PurgeUserEventsResponse",
     "Query",
     "RankRequest",
     "RankResponse",
@@ -407,6 +435,7 @@
     "SearchResponse",
     "SearchServiceClient",
     "SearchTier",
+    "SearchTuningServiceClient",
     "SearchUseCase",
     "Session",
     "SiteSearchEngine",
@@ -417,6 +446,9 @@
     "SuggestionDenyListEntry",
     "TargetSite",
     "TextInput",
+    "TrainCustomModelMetadata",
+    "TrainCustomModelRequest",
+    "TrainCustomModelResponse",
     "TransactionInfo",
     "UpdateControlRequest",
     "UpdateConversationRequest",
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/gapic_metadata.json b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/gapic_metadata.json
index 855e95c5aceb..219241f131af 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/gapic_metadata.json
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/gapic_metadata.json
@@ -506,6 +506,11 @@
         "grpc": {
           "libraryClient": "DocumentServiceClient",
           "rpcs": {
+            "BatchGetDocumentsMetadata": {
+              "methods": [
+                "batch_get_documents_metadata"
+              ]
+            },
             "CreateDocument": {
               "methods": [
                 "create_document"
@@ -546,6 +551,11 @@
         "grpc-async": {
           "libraryClient": "DocumentServiceAsyncClient",
           "rpcs": {
+            "BatchGetDocumentsMetadata": {
+              "methods": [
+                "batch_get_documents_metadata"
+              ]
+            },
             "CreateDocument": {
               "methods": [
                 "create_document"
@@ -586,6 +596,11 @@
         "rest": {
           "libraryClient": "DocumentServiceClient",
           "rpcs": {
+            "BatchGetDocumentsMetadata": {
+              "methods": [
+                "batch_get_documents_metadata"
+              ]
+            },
             "CreateDocument": {
               "methods": [
                 "create_document"
@@ -983,6 +998,55 @@
         }
       }
     },
+    "SearchTuningService": {
+      "clients": {
+        "grpc": {
+          "libraryClient": "SearchTuningServiceClient",
+          "rpcs": {
+            "ListCustomModels": {
+              "methods": [
+                "list_custom_models"
+              ]
+            },
+            "TrainCustomModel": {
+              "methods": [
+                "train_custom_model"
+              ]
+            }
+          }
+        },
+        "grpc-async": {
+          "libraryClient": "SearchTuningServiceAsyncClient",
+          "rpcs": {
+            "ListCustomModels": {
+              "methods": [
+                "list_custom_models"
+              ]
+            },
+            "TrainCustomModel": {
+              "methods": [
+                "train_custom_model"
+              ]
+            }
+          }
+        },
+        "rest": {
+          "libraryClient": "SearchTuningServiceClient",
+          "rpcs": {
+            "ListCustomModels": {
+              "methods": [
+                "list_custom_models"
+              ]
+            },
+            "TrainCustomModel": {
+              "methods": [
+                "train_custom_model"
+              ]
+            }
+          }
+        }
+      }
+    },
     "SiteSearchEngineService": {
       "clients": {
         "grpc": {
@@ -1197,6 +1261,11 @@
                 "import_user_events"
               ]
             },
+            "PurgeUserEvents": {
+              "methods": [
+                "purge_user_events"
+              ]
+            },
             "WriteUserEvent": {
               "methods": [
                 "write_user_event"
@@ -1217,6 +1286,11 @@
                 "import_user_events"
               ]
             },
+            "PurgeUserEvents": {
+              "methods": [
+                "purge_user_events"
+              ]
+            },
             "WriteUserEvent": {
               "methods": [
                 "write_user_event"
@@ -1237,6 +1311,11 @@
                 "import_user_events"
               ]
             },
+            "PurgeUserEvents": {
+              "methods": [
+                "purge_user_events"
+              ]
+            },
             "WriteUserEvent": {
               "methods": [
                 "write_user_event"
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/gapic_version.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/gapic_version.py
index 558c8aab67c5..9e3a3e937556 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/gapic_version.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "0.0.0"  # {x-release-please-version}
+__version__ = "0.12.2"  # {x-release-please-version}
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/completion_service/transports/rest.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/completion_service/transports/rest.py
index 836224789b61..d47335b10033 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/completion_service/transports/rest.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/completion_service/transports/rest.py
@@ -490,6 +490,10 @@ def operations_client(self) -> operations_v1.AbstractOperationsClient:
                         "method": "get",
                         "uri": "/v1/{name=projects/*/locations/*/dataStores/*/operations/*}",
                     },
+                    {
+                        "method": "get",
+                        "uri": "/v1/{name=projects/*/locations/*/identity_mapping_stores/*/operations/*}",
+                    },
                     {
                         "method": "get",
                         "uri": "/v1/{name=projects/*/locations/*/operations/*}",
@@ -552,6 +556,10 @@ def operations_client(self) -> operations_v1.AbstractOperationsClient:
                         "method": "get",
                         "uri": "/v1/{name=projects/*/locations/*/dataStores/*}/operations",
                     },
+                    {
+                        "method": "get",
+                        "uri": "/v1/{name=projects/*/locations/*/identity_mapping_stores/*}/operations",
+                    },
                     {
                         "method": "get",
                         "uri": "/v1/{name=projects/*/locations/*}/operations",
@@ -1302,6 +1310,10 @@ def __call__(
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*/dataStores/*/operations/*}",
                 },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/identity_mapping_stores/*/operations/*}",
+                },
                 {
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*/operations/*}",
@@ -1424,6 +1436,10 @@ def __call__(
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*/dataStores/*}/operations",
                 },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/identity_mapping_stores/*}/operations",
+                },
                 {
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*}/operations",
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/control_service/async_client.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/control_service/async_client.py
index 35b700126b56..377edbf159d7 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/control_service/async_client.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/control_service/async_client.py
@@ -358,8 +358,9 @@ async def sample_create_control():
         Returns:
             google.cloud.discoveryengine_v1.types.Control:
                 Defines a conditioned behavior to employ during serving.
-                   Must be attached to a [ServingConfig][] to be
-                   considered at serving time. Permitted actions
+                   Must be attached to a
+                   [ServingConfig][google.cloud.discoveryengine.v1.ServingConfig]
+                   to be considered at serving time. Permitted actions
                    dependent on SolutionType.
 
         """
@@ -590,8 +591,9 @@ async def sample_update_control():
         Returns:
             google.cloud.discoveryengine_v1.types.Control:
                 Defines a conditioned behavior to employ during serving.
-                   Must be attached to a [ServingConfig][] to be
-                   considered at serving time. Permitted actions
+                   Must be attached to a
+                   [ServingConfig][google.cloud.discoveryengine.v1.ServingConfig]
+                   to be considered at serving time. Permitted actions
                    dependent on SolutionType.
 
         """
@@ -702,8 +704,9 @@ async def sample_get_control():
         Returns:
             google.cloud.discoveryengine_v1.types.Control:
                 Defines a conditioned behavior to employ during serving.
-                   Must be attached to a [ServingConfig][] to be
-                   considered at serving time. Permitted actions
+                   Must be attached to a
+                   [ServingConfig][google.cloud.discoveryengine.v1.ServingConfig]
+                   to be considered at serving time. Permitted actions
                    dependent on SolutionType.
 
         """
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/control_service/client.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/control_service/client.py
index 2a900c13463d..19ac1f8332c8 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/control_service/client.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/control_service/client.py
@@ -803,8 +803,9 @@ def sample_create_control():
         Returns:
             google.cloud.discoveryengine_v1.types.Control:
                 Defines a conditioned behavior to employ during serving.
-                   Must be attached to a [ServingConfig][] to be
-                   considered at serving time. Permitted actions
+                   Must be attached to a
+                   [ServingConfig][google.cloud.discoveryengine.v1.ServingConfig]
+                   to be considered at serving time. Permitted actions
                    dependent on SolutionType.
 
         """
@@ -1029,8 +1030,9 @@ def sample_update_control():
         Returns:
             google.cloud.discoveryengine_v1.types.Control:
                 Defines a conditioned behavior to employ during serving.
-                   Must be attached to a [ServingConfig][] to be
-                   considered at serving time. Permitted actions
+                   Must be attached to a
+                   [ServingConfig][google.cloud.discoveryengine.v1.ServingConfig]
+                   to be considered at serving time. Permitted actions
                    dependent on SolutionType.
 
         """
@@ -1138,8 +1140,9 @@ def sample_get_control():
         Returns:
             google.cloud.discoveryengine_v1.types.Control:
                 Defines a conditioned behavior to employ during serving.
-                   Must be attached to a [ServingConfig][] to be
-                   considered at serving time. Permitted actions
+                   Must be attached to a
+                   [ServingConfig][google.cloud.discoveryengine.v1.ServingConfig]
+                   to be considered at serving time. Permitted actions
                    dependent on SolutionType.
 
         """
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/control_service/transports/rest.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/control_service/transports/rest.py
index dc8bd898b465..7d8ea550e2a5 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/control_service/transports/rest.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/control_service/transports/rest.py
@@ -414,9 +414,10 @@ def __call__(
             Returns:
                 ~.gcd_control.Control:
                     Defines a conditioned behavior to employ during serving.
-                Must be attached to a [ServingConfig][] to be considered
-                at serving time. Permitted actions dependent on
-                ``SolutionType``.
+                Must be attached to a
+                [ServingConfig][google.cloud.discoveryengine.v1.ServingConfig]
+                to be considered at serving time. Permitted actions
+                dependent on ``SolutionType``.
 
             """
 
@@ -601,9 +602,10 @@ def __call__(
             Returns:
                 ~.control.Control:
                     Defines a conditioned behavior to employ during serving.
-                Must be attached to a [ServingConfig][] to be considered
-                at serving time. Permitted actions dependent on
-                ``SolutionType``.
+                Must be attached to a
+                [ServingConfig][google.cloud.discoveryengine.v1.ServingConfig]
+                to be considered at serving time. Permitted actions
+                dependent on ``SolutionType``.
 
             """
 
@@ -791,9 +793,10 @@ def __call__(
             Returns:
                 ~.gcd_control.Control:
                     Defines a conditioned behavior to employ during serving.
-                Must be attached to a [ServingConfig][] to be considered
-                at serving time. Permitted actions dependent on
-                ``SolutionType``.
+                Must be attached to a
+                [ServingConfig][google.cloud.discoveryengine.v1.ServingConfig]
+                to be considered at serving time. Permitted actions
+                dependent on ``SolutionType``.
 
             """
 
@@ -1059,6 +1062,10 @@ def __call__(
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*/dataStores/*/operations/*}",
                 },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/identity_mapping_stores/*/operations/*}",
+                },
                 {
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*/operations/*}",
@@ -1181,6 +1188,10 @@ def __call__(
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*/dataStores/*}/operations",
                 },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/identity_mapping_stores/*}/operations",
+                },
                 {
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*}/operations",
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/conversational_search_service/transports/rest.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/conversational_search_service/transports/rest.py
index 84b6bc30c1a6..f1211380fe64 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/conversational_search_service/transports/rest.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/conversational_search_service/transports/rest.py
@@ -2213,6 +2213,10 @@ def __call__(
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*/dataStores/*/operations/*}",
                 },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/identity_mapping_stores/*/operations/*}",
+                },
                 {
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*/operations/*}",
@@ -2335,6 +2339,10 @@ def __call__(
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*/dataStores/*}/operations",
                 },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/identity_mapping_stores/*}/operations",
+                },
                 {
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*}/operations",
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/data_store_service/transports/rest.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/data_store_service/transports/rest.py
index 65051ae919e2..caae22741d06 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/data_store_service/transports/rest.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/data_store_service/transports/rest.py
@@ -482,6 +482,10 @@ def operations_client(self) -> operations_v1.AbstractOperationsClient:
                         "method": "get",
                         "uri": "/v1/{name=projects/*/locations/*/dataStores/*/operations/*}",
                     },
+                    {
+                        "method": "get",
+                        "uri": "/v1/{name=projects/*/locations/*/identity_mapping_stores/*/operations/*}",
+                    },
                     {
                         "method": "get",
                         "uri": "/v1/{name=projects/*/locations/*/operations/*}",
@@ -544,6 +548,10 @@ def operations_client(self) -> operations_v1.AbstractOperationsClient:
                         "method": "get",
                         "uri": "/v1/{name=projects/*/locations/*/dataStores/*}/operations",
                     },
+                    {
+                        "method": "get",
+                        "uri": "/v1/{name=projects/*/locations/*/identity_mapping_stores/*}/operations",
+                    },
                     {
                         "method": "get",
                         "uri": "/v1/{name=projects/*/locations/*}/operations",
@@ -1266,6 +1274,10 @@ def __call__(
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*/dataStores/*/operations/*}",
                 },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/identity_mapping_stores/*/operations/*}",
+                },
                 {
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*/operations/*}",
@@ -1388,6 +1400,10 @@ def __call__(
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*/dataStores/*}/operations",
                 },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/identity_mapping_stores/*}/operations",
+                },
                 {
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*}/operations",
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/document_service/async_client.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/document_service/async_client.py
index 9cf6c715c029..2a549bd41562 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/document_service/async_client.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/document_service/async_client.py
@@ -1065,7 +1065,11 @@ async def sample_purge_documents():
                 client = discoveryengine_v1.DocumentServiceAsyncClient()
 
                 # Initialize request argument(s)
+                gcs_source = discoveryengine_v1.GcsSource()
+                gcs_source.input_uris = ['input_uris_value1', 'input_uris_value2']
+
                 request = discoveryengine_v1.PurgeDocumentsRequest(
+                    gcs_source=gcs_source,
                     parent="parent_value",
                     filter="filter_value",
                 )
@@ -1142,6 +1146,118 @@ async def sample_purge_documents():
         # Done; return the response.
         return response
 
+    async def batch_get_documents_metadata(
+        self,
+        request: Optional[
+            Union[document_service.BatchGetDocumentsMetadataRequest, dict]
+        ] = None,
+        *,
+        parent: Optional[str] = None,
+        retry: OptionalRetry = gapic_v1.method.DEFAULT,
+        timeout: Union[float, object] = gapic_v1.method.DEFAULT,
+        metadata: Sequence[Tuple[str, str]] = (),
+    ) -> document_service.BatchGetDocumentsMetadataResponse:
+        r"""Gets index freshness metadata for
+        [Document][google.cloud.discoveryengine.v1.Document]s. Supported
+        for website search only.
+
+        .. code-block:: python
+
+            # This snippet has been automatically generated and should be regarded as a
+            # code template only.
+            # It will require modifications to work:
+            # - It may require correct/in-range values for request initialization.
+            # - It may require specifying regional endpoints when creating the service
+            #   client as shown in:
+            #   https://googleapis.dev/python/google-api-core/latest/client_options.html
+            from google.cloud import discoveryengine_v1
+
+            async def sample_batch_get_documents_metadata():
+                # Create a client
+                client = discoveryengine_v1.DocumentServiceAsyncClient()
+
+                # Initialize request argument(s)
+                request = discoveryengine_v1.BatchGetDocumentsMetadataRequest(
+                    parent="parent_value",
+                )
+
+                # Make the request
+                response = await client.batch_get_documents_metadata(request=request)
+
+                # Handle the response
+                print(response)
+
+        Args:
+            request (Optional[Union[google.cloud.discoveryengine_v1.types.BatchGetDocumentsMetadataRequest, dict]]):
+                The request object. Request message for
+                [DocumentService.BatchGetDocumentsMetadata][google.cloud.discoveryengine.v1.DocumentService.BatchGetDocumentsMetadata]
+                method.
+            parent (:class:`str`):
+                Required. The parent branch resource name, such as
+                ``projects/{project}/locations/{location}/collections/{collection}/dataStores/{data_store}/branches/{branch}``.
+
+                This corresponds to the ``parent`` field
+                on the ``request`` instance; if ``request`` is provided, this
+                should not be set.
+            retry (google.api_core.retry_async.AsyncRetry): Designation of what errors, if any,
+                should be retried.
+            timeout (float): The timeout for this request.
+            metadata (Sequence[Tuple[str, str]]): Strings which should be
+                sent along with the request as metadata.
+
+        Returns:
+            google.cloud.discoveryengine_v1.types.BatchGetDocumentsMetadataResponse:
+                Response message for
+                   [DocumentService.BatchGetDocumentsMetadata][google.cloud.discoveryengine.v1.DocumentService.BatchGetDocumentsMetadata]
+                   method.
+
+        """
+        # Create or coerce a protobuf request object.
+        # - Quick check: If we got a request object, we should *not* have
+        #   gotten any keyword arguments that map to the request.
+        has_flattened_params = any([parent])
+        if request is not None and has_flattened_params:
+            raise ValueError(
+                "If the `request` argument is set, then none of "
+                "the individual field arguments should be set."
+            )
+
+        # - Use the request object if provided (there's no risk of modifying the input as
+        #   there are no flattened fields), or create one.
+        if not isinstance(request, document_service.BatchGetDocumentsMetadataRequest):
+            request = document_service.BatchGetDocumentsMetadataRequest(request)
+
+        # If we have keyword arguments corresponding to fields on the
+        # request, apply these.
+        if parent is not None:
+            request.parent = parent
+
+        # Wrap the RPC method; this adds retry and timeout information,
+        # and friendly error handling.
+        rpc = self._client._transport._wrapped_methods[
+            self._client._transport.batch_get_documents_metadata
+        ]
+
+        # Certain fields should be provided within the metadata header;
+        # add these here.
+        metadata = tuple(metadata) + (
+            gapic_v1.routing_header.to_grpc_metadata((("parent", request.parent),)),
+        )
+
+        # Validate the universe domain.
+        self._client._validate_universe_domain()
+
+        # Send the request.
+        response = await rpc(
+            request,
+            retry=retry,
+            timeout=timeout,
+            metadata=metadata,
+        )
+
+        # Done; return the response.
+        return response
+
     async def list_operations(
         self,
         request: Optional[operations_pb2.ListOperationsRequest] = None,
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/document_service/client.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/document_service/client.py
index 0de64afac5e6..7cd09e1391e9 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/document_service/client.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/document_service/client.py
@@ -1519,7 +1519,11 @@ def sample_purge_documents():
                 client = discoveryengine_v1.DocumentServiceClient()
 
                 # Initialize request argument(s)
+                gcs_source = discoveryengine_v1.GcsSource()
+                gcs_source.input_uris = ['input_uris_value1', 'input_uris_value2']
+
                 request = discoveryengine_v1.PurgeDocumentsRequest(
+                    gcs_source=gcs_source,
                     parent="parent_value",
                     filter="filter_value",
                 )
@@ -1594,6 +1598,117 @@ def sample_purge_documents():
         # Done; return the response.
         return response
 
+    def batch_get_documents_metadata(
+        self,
+        request: Optional[
+            Union[document_service.BatchGetDocumentsMetadataRequest, dict]
+        ] = None,
+        *,
+        parent: Optional[str] = None,
+        retry: OptionalRetry = gapic_v1.method.DEFAULT,
+        timeout: Union[float, object] = gapic_v1.method.DEFAULT,
+        metadata: Sequence[Tuple[str, str]] = (),
+    ) -> document_service.BatchGetDocumentsMetadataResponse:
+        r"""Gets index freshness metadata for
+        [Document][google.cloud.discoveryengine.v1.Document]s. Supported
+        for website search only.
+
+        .. code-block:: python
+
+            # This snippet has been automatically generated and should be regarded as a
+            # code template only.
+            # It will require modifications to work:
+            # - It may require correct/in-range values for request initialization.
+            # - It may require specifying regional endpoints when creating the service
+            #   client as shown in:
+            #   https://googleapis.dev/python/google-api-core/latest/client_options.html
+            from google.cloud import discoveryengine_v1
+
+            def sample_batch_get_documents_metadata():
+                # Create a client
+                client = discoveryengine_v1.DocumentServiceClient()
+
+                # Initialize request argument(s)
+                request = discoveryengine_v1.BatchGetDocumentsMetadataRequest(
+                    parent="parent_value",
+                )
+
+                # Make the request
+                response = client.batch_get_documents_metadata(request=request)
+
+                # Handle the response
+                print(response)
+
+        Args:
+            request (Union[google.cloud.discoveryengine_v1.types.BatchGetDocumentsMetadataRequest, dict]):
+                The request object. Request message for
+                [DocumentService.BatchGetDocumentsMetadata][google.cloud.discoveryengine.v1.DocumentService.BatchGetDocumentsMetadata]
+                method.
+            parent (str):
+                Required. The parent branch resource name, such as
+                ``projects/{project}/locations/{location}/collections/{collection}/dataStores/{data_store}/branches/{branch}``.
+
+                This corresponds to the ``parent`` field
+                on the ``request`` instance; if ``request`` is provided, this
+                should not be set.
+            retry (google.api_core.retry.Retry): Designation of what errors, if any,
+                should be retried.
+            timeout (float): The timeout for this request.
+            metadata (Sequence[Tuple[str, str]]): Strings which should be
+                sent along with the request as metadata.
+
+        Returns:
+            google.cloud.discoveryengine_v1.types.BatchGetDocumentsMetadataResponse:
+                Response message for
+                   [DocumentService.BatchGetDocumentsMetadata][google.cloud.discoveryengine.v1.DocumentService.BatchGetDocumentsMetadata]
+                   method.
+
+        """
+        # Create or coerce a protobuf request object.
+        # - Quick check: If we got a request object, we should *not* have
+        #   gotten any keyword arguments that map to the request.
+        has_flattened_params = any([parent])
+        if request is not None and has_flattened_params:
+            raise ValueError(
+                "If the `request` argument is set, then none of "
+                "the individual field arguments should be set."
+            )
+
+        # - Use the request object if provided (there's no risk of modifying the input as
+        #   there are no flattened fields), or create one.
+        if not isinstance(request, document_service.BatchGetDocumentsMetadataRequest):
+            request = document_service.BatchGetDocumentsMetadataRequest(request)
+            # If we have keyword arguments corresponding to fields on the
+            # request, apply these.
+            if parent is not None:
+                request.parent = parent
+
+        # Wrap the RPC method; this adds retry and timeout information,
+        # and friendly error handling.
+        rpc = self._transport._wrapped_methods[
+            self._transport.batch_get_documents_metadata
+        ]
+
+        # Certain fields should be provided within the metadata header;
+        # add these here.
+        metadata = tuple(metadata) + (
+            gapic_v1.routing_header.to_grpc_metadata((("parent", request.parent),)),
+        )
+
+        # Validate the universe domain.
+        self._validate_universe_domain()
+
+        # Send the request.
+        response = rpc(
+            request,
+            retry=retry,
+            timeout=timeout,
+            metadata=metadata,
+        )
+
+        # Done; return the response.
+        return response
+
     def __enter__(self) -> "DocumentServiceClient":
         return self
 
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/document_service/transports/base.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/document_service/transports/base.py
index 4df6d3f36550..5c05090f3e92 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/document_service/transports/base.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/document_service/transports/base.py
@@ -181,6 +181,11 @@ def _prep_wrapped_messages(self, client_info):
                 default_timeout=None,
                 client_info=client_info,
             ),
+            self.batch_get_documents_metadata: gapic_v1.method.wrap_method(
+                self.batch_get_documents_metadata,
+                default_timeout=None,
+                client_info=client_info,
+            ),
         }
 
     def close(self):
@@ -263,6 +268,18 @@ def purge_documents(
     ]:
         raise NotImplementedError()
 
+    @property
+    def batch_get_documents_metadata(
+        self,
+    ) -> Callable[
+        [document_service.BatchGetDocumentsMetadataRequest],
+        Union[
+            document_service.BatchGetDocumentsMetadataResponse,
+            Awaitable[document_service.BatchGetDocumentsMetadataResponse],
+        ],
+    ]:
+        raise NotImplementedError()
+
     @property
     def list_operations(
         self,
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/document_service/transports/grpc.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/document_service/transports/grpc.py
index 7b5a3256af7f..688476d1b16f 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/document_service/transports/grpc.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/document_service/transports/grpc.py
@@ -469,6 +469,37 @@ def purge_documents(
             )
         return self._stubs["purge_documents"]
 
+    @property
+    def batch_get_documents_metadata(
+        self,
+    ) -> Callable[
+        [document_service.BatchGetDocumentsMetadataRequest],
+        document_service.BatchGetDocumentsMetadataResponse,
+    ]:
+        r"""Return a callable for the batch get documents metadata method over gRPC.
+
+        Gets index freshness metadata for
+        [Document][google.cloud.discoveryengine.v1.Document]s. Supported
+        for website search only.
+
+        Returns:
+            Callable[[~.BatchGetDocumentsMetadataRequest],
+                    ~.BatchGetDocumentsMetadataResponse]:
+                A function that, when called, will call the underlying RPC
+                on the server.
+        """
+        # Generate a "stub function" on-the-fly which will actually make
+        # the request.
+        # gRPC handles serialization and deserialization, so we just need
+        # to pass in the functions for each.
+        if "batch_get_documents_metadata" not in self._stubs:
+            self._stubs["batch_get_documents_metadata"] = self.grpc_channel.unary_unary(
+                "/google.cloud.discoveryengine.v1.DocumentService/BatchGetDocumentsMetadata",
+                request_serializer=document_service.BatchGetDocumentsMetadataRequest.serialize,
+                response_deserializer=document_service.BatchGetDocumentsMetadataResponse.deserialize,
+            )
+        return self._stubs["batch_get_documents_metadata"]
+
     def close(self):
         self.grpc_channel.close()
 
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/document_service/transports/grpc_asyncio.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/document_service/transports/grpc_asyncio.py
index 4bd82f9fdb85..7667dceb4ddb 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/document_service/transports/grpc_asyncio.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/document_service/transports/grpc_asyncio.py
@@ -484,6 +484,37 @@ def purge_documents(
             )
         return self._stubs["purge_documents"]
 
+    @property
+    def batch_get_documents_metadata(
+        self,
+    ) -> Callable[
+        [document_service.BatchGetDocumentsMetadataRequest],
+        Awaitable[document_service.BatchGetDocumentsMetadataResponse],
+    ]:
+        r"""Return a callable for the batch get documents metadata method over gRPC.
+
+        Gets index freshness metadata for
+        [Document][google.cloud.discoveryengine.v1.Document]s. Supported
+        for website search only.
+
+        Returns:
+            Callable[[~.BatchGetDocumentsMetadataRequest],
+                    Awaitable[~.BatchGetDocumentsMetadataResponse]]:
+                A function that, when called, will call the underlying RPC
+                on the server.
+        """
+        # Generate a "stub function" on-the-fly which will actually make
+        # the request.
+        # gRPC handles serialization and deserialization, so we just need
+        # to pass in the functions for each.
+        if "batch_get_documents_metadata" not in self._stubs:
+            self._stubs["batch_get_documents_metadata"] = self.grpc_channel.unary_unary(
+                "/google.cloud.discoveryengine.v1.DocumentService/BatchGetDocumentsMetadata",
+                request_serializer=document_service.BatchGetDocumentsMetadataRequest.serialize,
+                response_deserializer=document_service.BatchGetDocumentsMetadataResponse.deserialize,
+            )
+        return self._stubs["batch_get_documents_metadata"]
+
     def _prep_wrapped_messages(self, client_info):
         """Precompute the wrapped methods, overriding the base class method to use async wrappers."""
         self._wrapped_methods = {
@@ -531,6 +562,11 @@ def _prep_wrapped_messages(self, client_info):
                 default_timeout=None,
                 client_info=client_info,
             ),
+            self.batch_get_documents_metadata: gapic_v1.method_async.wrap_method(
+                self.batch_get_documents_metadata,
+                default_timeout=None,
+                client_info=client_info,
+            ),
         }
 
     def close(self):
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/document_service/transports/rest.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/document_service/transports/rest.py
index 1418d3d2036b..51788a4c0f13 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/document_service/transports/rest.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/document_service/transports/rest.py
@@ -79,6 +79,14 @@ class DocumentServiceRestInterceptor:
 
     .. code-block:: python
         class MyCustomDocumentServiceInterceptor(DocumentServiceRestInterceptor):
+            def pre_batch_get_documents_metadata(self, request, metadata):
+                logging.log(f"Received request: {request}")
+                return request, metadata
+
+            def post_batch_get_documents_metadata(self, response):
+                logging.log(f"Received response: {response}")
+                return response
+
             def pre_create_document(self, request, metadata):
                 logging.log(f"Received request: {request}")
                 return request, metadata
@@ -137,6 +145,31 @@ def post_update_document(self, response):
 
     """
 
+    def pre_batch_get_documents_metadata(
+        self,
+        request: document_service.BatchGetDocumentsMetadataRequest,
+        metadata: Sequence[Tuple[str, str]],
+    ) -> Tuple[
+        document_service.BatchGetDocumentsMetadataRequest, Sequence[Tuple[str, str]]
+    ]:
+        """Pre-rpc interceptor for batch_get_documents_metadata
+
+        Override in a subclass to manipulate the request or metadata
+        before they are sent to the DocumentService server.
+        """
+        return request, metadata
+
+    def post_batch_get_documents_metadata(
+        self, response: document_service.BatchGetDocumentsMetadataResponse
+    ) -> document_service.BatchGetDocumentsMetadataResponse:
+        """Post-rpc interceptor for batch_get_documents_metadata
+
+        Override in a subclass to manipulate the response
+        after it is returned by the DocumentService server but before
+        it is returned to user code.
+        """
+        return response
+
     def pre_create_document(
         self,
         request: document_service.CreateDocumentRequest,
@@ -532,6 +565,10 @@ def operations_client(self) -> operations_v1.AbstractOperationsClient:
                         "method": "get",
                         "uri": "/v1/{name=projects/*/locations/*/dataStores/*/operations/*}",
                     },
+                    {
+                        "method": "get",
+                        "uri": "/v1/{name=projects/*/locations/*/identity_mapping_stores/*/operations/*}",
+                    },
                     {
                         "method": "get",
                         "uri": "/v1/{name=projects/*/locations/*/operations/*}",
@@ -594,6 +631,10 @@ def operations_client(self) -> operations_v1.AbstractOperationsClient:
                         "method": "get",
                         "uri": "/v1/{name=projects/*/locations/*/dataStores/*}/operations",
                     },
+                    {
+                        "method": "get",
+                        "uri": "/v1/{name=projects/*/locations/*/identity_mapping_stores/*}/operations",
+                    },
                     {
                         "method": "get",
                         "uri": "/v1/{name=projects/*/locations/*}/operations",
@@ -621,6 +662,105 @@ def operations_client(self) -> operations_v1.AbstractOperationsClient:
         # Return the client from cache.
         return self._operations_client
 
+    class _BatchGetDocumentsMetadata(DocumentServiceRestStub):
+        def __hash__(self):
+            return hash("BatchGetDocumentsMetadata")
+
+        __REQUIRED_FIELDS_DEFAULT_VALUES: Dict[str, Any] = {
+            "matcher": {},
+        }
+
+        @classmethod
+        def _get_unset_required_fields(cls, message_dict):
+            return {
+                k: v
+                for k, v in cls.__REQUIRED_FIELDS_DEFAULT_VALUES.items()
+                if k not in message_dict
+            }
+
+        def __call__(
+            self,
+            request: document_service.BatchGetDocumentsMetadataRequest,
+            *,
+            retry: OptionalRetry = gapic_v1.method.DEFAULT,
+            timeout: Optional[float] = None,
+            metadata: Sequence[Tuple[str, str]] = (),
+        ) -> document_service.BatchGetDocumentsMetadataResponse:
+            r"""Call the batch get documents
+            metadata method over HTTP.
+
+                Args:
+                    request (~.document_service.BatchGetDocumentsMetadataRequest):
+                        The request object. Request message for
+                    [DocumentService.BatchGetDocumentsMetadata][google.cloud.discoveryengine.v1.DocumentService.BatchGetDocumentsMetadata]
+                    method.
+                    retry (google.api_core.retry.Retry): Designation of what errors, if any,
+                        should be retried.
+                    timeout (float): The timeout for this request.
+                    metadata (Sequence[Tuple[str, str]]): Strings which should be
+                        sent along with the request as metadata.
+
+                Returns:
+                    ~.document_service.BatchGetDocumentsMetadataResponse:
+                        Response message for
+                    [DocumentService.BatchGetDocumentsMetadata][google.cloud.discoveryengine.v1.DocumentService.BatchGetDocumentsMetadata]
+                    method.
+
+            """
+
+            http_options: List[Dict[str, str]] = [
+                {
+                    "method": "get",
+                    "uri": "/v1/{parent=projects/*/locations/*/dataStores/*/branches/*}/batchGetDocumentsMetadata",
+                },
+                {
+                    "method": "get",
+                    "uri": "/v1/{parent=projects/*/locations/*/collections/*/dataStores/*/branches/*}/batchGetDocumentsMetadata",
+                },
+            ]
+            request, metadata = self._interceptor.pre_batch_get_documents_metadata(
+                request, metadata
+            )
+            pb_request = document_service.BatchGetDocumentsMetadataRequest.pb(request)
+            transcoded_request = path_template.transcode(http_options, pb_request)
+
+            uri = transcoded_request["uri"]
+            method = transcoded_request["method"]
+
+            # Jsonify the query params
+            query_params = json.loads(
+                json_format.MessageToJson(
+                    transcoded_request["query_params"],
+                    use_integers_for_enums=True,
+                )
+            )
+            query_params.update(self._get_unset_required_fields(query_params))
+
+            query_params["$alt"] = "json;enum-encoding=int"
+
+            # Send the request
+            headers = dict(metadata)
+            headers["Content-Type"] = "application/json"
+            response = getattr(self._session, method)(
+                "{host}{uri}".format(host=self._host, uri=uri),
+                timeout=timeout,
+                headers=headers,
+                params=rest_helpers.flatten_query_params(query_params, strict=True),
+            )
+
+            # In case of error, raise the appropriate core_exceptions.GoogleAPICallError exception
+            # subclass.
+            if response.status_code >= 400:
+                raise core_exceptions.from_http_response(response)
+
+            # Return the response
+            resp = document_service.BatchGetDocumentsMetadataResponse()
+            pb_resp = document_service.BatchGetDocumentsMetadataResponse.pb(resp)
+
+            json_format.Parse(response.content, pb_resp, ignore_unknown_fields=True)
+            resp = self._interceptor.post_batch_get_documents_metadata(resp)
+            return resp
+
     class _CreateDocument(DocumentServiceRestStub):
         def __hash__(self):
             return hash("CreateDocument")
@@ -1294,6 +1434,17 @@ def __call__(
             resp = self._interceptor.post_update_document(resp)
             return resp
 
+    @property
+    def batch_get_documents_metadata(
+        self,
+    ) -> Callable[
+        [document_service.BatchGetDocumentsMetadataRequest],
+        document_service.BatchGetDocumentsMetadataResponse,
+    ]:
+        # The return type is fine, but mypy isn't sophisticated enough to determine what's going on here.
+        # In C++ this would require a dynamic_cast
+        return self._BatchGetDocumentsMetadata(self._session, self._host, self._interceptor)  # type: ignore
+
     @property
     def create_document(
         self,
@@ -1508,6 +1659,10 @@ def __call__(
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*/dataStores/*/operations/*}",
                 },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/identity_mapping_stores/*/operations/*}",
+                },
                 {
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*/operations/*}",
@@ -1630,6 +1785,10 @@ def __call__(
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*/dataStores/*}/operations",
                 },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/identity_mapping_stores/*}/operations",
+                },
                 {
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*}/operations",
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/engine_service/transports/rest.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/engine_service/transports/rest.py
index 9f8887074424..5cdbcf388f23 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/engine_service/transports/rest.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/engine_service/transports/rest.py
@@ -477,6 +477,10 @@ def operations_client(self) -> operations_v1.AbstractOperationsClient:
                         "method": "get",
                         "uri": "/v1/{name=projects/*/locations/*/dataStores/*/operations/*}",
                     },
+                    {
+                        "method": "get",
+                        "uri": "/v1/{name=projects/*/locations/*/identity_mapping_stores/*/operations/*}",
+                    },
                     {
                         "method": "get",
                         "uri": "/v1/{name=projects/*/locations/*/operations/*}",
@@ -539,6 +543,10 @@ def operations_client(self) -> operations_v1.AbstractOperationsClient:
                         "method": "get",
                         "uri": "/v1/{name=projects/*/locations/*/dataStores/*}/operations",
                     },
+                    {
+                        "method": "get",
+                        "uri": "/v1/{name=projects/*/locations/*/identity_mapping_stores/*}/operations",
+                    },
                     {
                         "method": "get",
                         "uri": "/v1/{name=projects/*/locations/*}/operations",
@@ -1224,6 +1232,10 @@ def __call__(
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*/dataStores/*/operations/*}",
                 },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/identity_mapping_stores/*/operations/*}",
+                },
                 {
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*/operations/*}",
@@ -1346,6 +1358,10 @@ def __call__(
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*/dataStores/*}/operations",
                 },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/identity_mapping_stores/*}/operations",
+                },
                 {
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*}/operations",
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/grounded_generation_service/transports/rest.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/grounded_generation_service/transports/rest.py
index ee8a9194089c..ef84072de1d1 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/grounded_generation_service/transports/rest.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/grounded_generation_service/transports/rest.py
@@ -533,6 +533,10 @@ def __call__(
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*/dataStores/*/operations/*}",
                 },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/identity_mapping_stores/*/operations/*}",
+                },
                 {
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*/operations/*}",
@@ -655,6 +659,10 @@ def __call__(
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*/dataStores/*}/operations",
                 },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/identity_mapping_stores/*}/operations",
+                },
                 {
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*}/operations",
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/project_service/transports/rest.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/project_service/transports/rest.py
index b8a0f24db978..86fe2e880195 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/project_service/transports/rest.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/project_service/transports/rest.py
@@ -355,6 +355,10 @@ def operations_client(self) -> operations_v1.AbstractOperationsClient:
                         "method": "get",
                         "uri": "/v1/{name=projects/*/locations/*/dataStores/*/operations/*}",
                     },
+                    {
+                        "method": "get",
+                        "uri": "/v1/{name=projects/*/locations/*/identity_mapping_stores/*/operations/*}",
+                    },
                     {
                         "method": "get",
                         "uri": "/v1/{name=projects/*/locations/*/operations/*}",
@@ -417,6 +421,10 @@ def operations_client(self) -> operations_v1.AbstractOperationsClient:
                         "method": "get",
                         "uri": "/v1/{name=projects/*/locations/*/dataStores/*}/operations",
                     },
+                    {
+                        "method": "get",
+                        "uri": "/v1/{name=projects/*/locations/*/identity_mapping_stores/*}/operations",
+                    },
                     {
                         "method": "get",
                         "uri": "/v1/{name=projects/*/locations/*}/operations",
@@ -705,6 +713,10 @@ def __call__(
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*/dataStores/*/operations/*}",
                 },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/identity_mapping_stores/*/operations/*}",
+                },
                 {
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*/operations/*}",
@@ -827,6 +839,10 @@ def __call__(
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*/dataStores/*}/operations",
                 },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/identity_mapping_stores/*}/operations",
+                },
                 {
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*}/operations",
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/rank_service/transports/rest.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/rank_service/transports/rest.py
index 8796a94833df..c4725bfa7dfa 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/rank_service/transports/rest.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/rank_service/transports/rest.py
@@ -524,6 +524,10 @@ def __call__(
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*/dataStores/*/operations/*}",
                 },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/identity_mapping_stores/*/operations/*}",
+                },
                 {
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*/operations/*}",
@@ -646,6 +650,10 @@ def __call__(
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*/dataStores/*}/operations",
                 },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/identity_mapping_stores/*}/operations",
+                },
                 {
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*}/operations",
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/recommendation_service/transports/rest.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/recommendation_service/transports/rest.py
index 8b3979d914df..dac81936a0ee 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/recommendation_service/transports/rest.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/recommendation_service/transports/rest.py
@@ -538,6 +538,10 @@ def __call__(
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*/dataStores/*/operations/*}",
                 },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/identity_mapping_stores/*/operations/*}",
+                },
                 {
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*/operations/*}",
@@ -660,6 +664,10 @@ def __call__(
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*/dataStores/*}/operations",
                 },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/identity_mapping_stores/*}/operations",
+                },
                 {
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*}/operations",
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/schema_service/transports/rest.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/schema_service/transports/rest.py
index 214d34eaee49..56d8cdb52691 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/schema_service/transports/rest.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/schema_service/transports/rest.py
@@ -477,6 +477,10 @@ def operations_client(self) -> operations_v1.AbstractOperationsClient:
                         "method": "get",
                         "uri": "/v1/{name=projects/*/locations/*/dataStores/*/operations/*}",
                     },
+                    {
+                        "method": "get",
+                        "uri": "/v1/{name=projects/*/locations/*/identity_mapping_stores/*/operations/*}",
+                    },
                     {
                         "method": "get",
                         "uri": "/v1/{name=projects/*/locations/*/operations/*}",
@@ -539,6 +543,10 @@ def operations_client(self) -> operations_v1.AbstractOperationsClient:
                         "method": "get",
                         "uri": "/v1/{name=projects/*/locations/*/dataStores/*}/operations",
                     },
+                    {
+                        "method": "get",
+                        "uri": "/v1/{name=projects/*/locations/*/identity_mapping_stores/*}/operations",
+                    },
                     {
                         "method": "get",
                         "uri": "/v1/{name=projects/*/locations/*}/operations",
@@ -1243,6 +1251,10 @@ def __call__(
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*/dataStores/*/operations/*}",
                 },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/identity_mapping_stores/*/operations/*}",
+                },
                 {
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*/operations/*}",
@@ -1365,6 +1377,10 @@ def __call__(
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*/dataStores/*}/operations",
                 },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/identity_mapping_stores/*}/operations",
+                },
                 {
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*}/operations",
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/search_service/transports/rest.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/search_service/transports/rest.py
index c8165a22227b..6d55c0b7011d 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/search_service/transports/rest.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/search_service/transports/rest.py
@@ -536,6 +536,10 @@ def __call__(
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*/dataStores/*/operations/*}",
                 },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/identity_mapping_stores/*/operations/*}",
+                },
                 {
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*/operations/*}",
@@ -658,6 +662,10 @@ def __call__(
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*/dataStores/*}/operations",
                 },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/identity_mapping_stores/*}/operations",
+                },
                 {
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*}/operations",
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/search_tuning_service/__init__.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/search_tuning_service/__init__.py
new file mode 100644
index 000000000000..71fba7ca5f3f
--- /dev/null
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/search_tuning_service/__init__.py
@@ -0,0 +1,22 @@
+# -*- coding: utf-8 -*-
+# Copyright 2024 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+from .async_client import SearchTuningServiceAsyncClient
+from .client import SearchTuningServiceClient
+
+__all__ = (
+    "SearchTuningServiceClient",
+    "SearchTuningServiceAsyncClient",
+)
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/search_tuning_service/async_client.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/search_tuning_service/async_client.py
new file mode 100644
index 000000000000..af413b4bedf6
--- /dev/null
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/search_tuning_service/async_client.py
@@ -0,0 +1,654 @@
+# -*- coding: utf-8 -*-
+# Copyright 2024 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+from collections import OrderedDict
+import re
+from typing import (
+    Callable,
+    Dict,
+    Mapping,
+    MutableMapping,
+    MutableSequence,
+    Optional,
+    Sequence,
+    Tuple,
+    Type,
+    Union,
+)
+
+from google.api_core import exceptions as core_exceptions
+from google.api_core import gapic_v1
+from google.api_core import retry_async as retries
+from google.api_core.client_options import ClientOptions
+from google.auth import credentials as ga_credentials  # type: ignore
+from google.oauth2 import service_account  # type: ignore
+
+from google.cloud.discoveryengine_v1 import gapic_version as package_version
+
+try:
+    OptionalRetry = Union[retries.AsyncRetry, gapic_v1.method._MethodDefault, None]
+except AttributeError:  # pragma: NO COVER
+    OptionalRetry = Union[retries.AsyncRetry, object, None]  # type: ignore
+
+from google.api_core import operation  # type: ignore
+from google.api_core import operation_async  # type: ignore
+from google.cloud.location import locations_pb2  # type: ignore
+from google.longrunning import operations_pb2  # type: ignore
+
+from google.cloud.discoveryengine_v1.types import (
+    custom_tuning_model,
+    search_tuning_service,
+)
+
+from .client import SearchTuningServiceClient
+from .transports.base import DEFAULT_CLIENT_INFO, SearchTuningServiceTransport
+from .transports.grpc_asyncio import SearchTuningServiceGrpcAsyncIOTransport
+
+
+class SearchTuningServiceAsyncClient:
+    """Service for search tuning."""
+
+    _client: SearchTuningServiceClient
+
+    # Copy defaults from the synchronous client for use here.
+    # Note: DEFAULT_ENDPOINT is deprecated. Use _DEFAULT_ENDPOINT_TEMPLATE instead.
+    DEFAULT_ENDPOINT = SearchTuningServiceClient.DEFAULT_ENDPOINT
+    DEFAULT_MTLS_ENDPOINT = SearchTuningServiceClient.DEFAULT_MTLS_ENDPOINT
+    _DEFAULT_ENDPOINT_TEMPLATE = SearchTuningServiceClient._DEFAULT_ENDPOINT_TEMPLATE
+    _DEFAULT_UNIVERSE = SearchTuningServiceClient._DEFAULT_UNIVERSE
+
+    custom_tuning_model_path = staticmethod(
+        SearchTuningServiceClient.custom_tuning_model_path
+    )
+    parse_custom_tuning_model_path = staticmethod(
+        SearchTuningServiceClient.parse_custom_tuning_model_path
+    )
+    data_store_path = staticmethod(SearchTuningServiceClient.data_store_path)
+    parse_data_store_path = staticmethod(
+        SearchTuningServiceClient.parse_data_store_path
+    )
+    common_billing_account_path = staticmethod(
+        SearchTuningServiceClient.common_billing_account_path
+    )
+    parse_common_billing_account_path = staticmethod(
+        SearchTuningServiceClient.parse_common_billing_account_path
+    )
+    common_folder_path = staticmethod(SearchTuningServiceClient.common_folder_path)
+    parse_common_folder_path = staticmethod(
+        SearchTuningServiceClient.parse_common_folder_path
+    )
+    common_organization_path = staticmethod(
+        SearchTuningServiceClient.common_organization_path
+    )
+    parse_common_organization_path = staticmethod(
+        SearchTuningServiceClient.parse_common_organization_path
+    )
+    common_project_path = staticmethod(SearchTuningServiceClient.common_project_path)
+    parse_common_project_path = staticmethod(
+        SearchTuningServiceClient.parse_common_project_path
+    )
+    common_location_path = staticmethod(SearchTuningServiceClient.common_location_path)
+    parse_common_location_path = staticmethod(
+        SearchTuningServiceClient.parse_common_location_path
+    )
+
+    @classmethod
+    def from_service_account_info(cls, info: dict, *args, **kwargs):
+        """Creates an instance of this client using the provided credentials
+            info.
+
+        Args:
+            info (dict): The service account private key info.
+            args: Additional arguments to pass to the constructor.
+            kwargs: Additional arguments to pass to the constructor.
+
+        Returns:
+            SearchTuningServiceAsyncClient: The constructed client.
+        """
+        return SearchTuningServiceClient.from_service_account_info.__func__(SearchTuningServiceAsyncClient, info, *args, **kwargs)  # type: ignore
+
+    @classmethod
+    def from_service_account_file(cls, filename: str, *args, **kwargs):
+        """Creates an instance of this client using the provided credentials
+            file.
+
+        Args:
+            filename (str): The path to the service account private key json
+                file.
+            args: Additional arguments to pass to the constructor.
+            kwargs: Additional arguments to pass to the constructor.
+
+        Returns:
+            SearchTuningServiceAsyncClient: The constructed client.
+        """
+        return SearchTuningServiceClient.from_service_account_file.__func__(SearchTuningServiceAsyncClient, filename, *args, **kwargs)  # type: ignore
+
+    from_service_account_json = from_service_account_file
+
+    @classmethod
+    def get_mtls_endpoint_and_cert_source(
+        cls, client_options: Optional[ClientOptions] = None
+    ):
+        """Return the API endpoint and client cert source for mutual TLS.
+
+        The client cert source is determined in the following order:
+        (1) if `GOOGLE_API_USE_CLIENT_CERTIFICATE` environment variable is not "true", the
+        client cert source is None.
+        (2) if `client_options.client_cert_source` is provided, use the provided one; if the
+        default client cert source exists, use the default one; otherwise the client cert
+        source is None.
+
+        The API endpoint is determined in the following order:
+        (1) if `client_options.api_endpoint` if provided, use the provided one.
+        (2) if `GOOGLE_API_USE_CLIENT_CERTIFICATE` environment variable is "always", use the
+        default mTLS endpoint; if the environment variable is "never", use the default API
+        endpoint; otherwise if client cert source exists, use the default mTLS endpoint, otherwise
+        use the default API endpoint.
+
+        More details can be found at https://google.aip.dev/auth/4114.
+
+        Args:
+            client_options (google.api_core.client_options.ClientOptions): Custom options for the
+                client. Only the `api_endpoint` and `client_cert_source` properties may be used
+                in this method.
+
+        Returns:
+            Tuple[str, Callable[[], Tuple[bytes, bytes]]]: returns the API endpoint and the
+                client cert source to use.
+
+        Raises:
+            google.auth.exceptions.MutualTLSChannelError: If any errors happen.
+        """
+        return SearchTuningServiceClient.get_mtls_endpoint_and_cert_source(client_options)  # type: ignore
+
+    @property
+    def transport(self) -> SearchTuningServiceTransport:
+        """Returns the transport used by the client instance.
+
+        Returns:
+            SearchTuningServiceTransport: The transport used by the client instance.
+        """
+        return self._client.transport
+
+    @property
+    def api_endpoint(self):
+        """Return the API endpoint used by the client instance.
+
+        Returns:
+            str: The API endpoint used by the client instance.
+        """
+        return self._client._api_endpoint
+
+    @property
+    def universe_domain(self) -> str:
+        """Return the universe domain used by the client instance.
+
+        Returns:
+            str: The universe domain used
+                by the client instance.
+        """
+        return self._client._universe_domain
+
+    get_transport_class = SearchTuningServiceClient.get_transport_class
+
+    def __init__(
+        self,
+        *,
+        credentials: Optional[ga_credentials.Credentials] = None,
+        transport: Optional[
+            Union[
+                str,
+                SearchTuningServiceTransport,
+                Callable[..., SearchTuningServiceTransport],
+            ]
+        ] = "grpc_asyncio",
+        client_options: Optional[ClientOptions] = None,
+        client_info: gapic_v1.client_info.ClientInfo = DEFAULT_CLIENT_INFO,
+    ) -> None:
+        """Instantiates the search tuning service async client.
+
+        Args:
+            credentials (Optional[google.auth.credentials.Credentials]): The
+                authorization credentials to attach to requests. These
+                credentials identify the application to the service; if none
+                are specified, the client will attempt to ascertain the
+                credentials from the environment.
+            transport (Optional[Union[str,SearchTuningServiceTransport,Callable[..., SearchTuningServiceTransport]]]):
+                The transport to use, or a Callable that constructs and returns a new transport to use.
+                If a Callable is given, it will be called with the same set of initialization
+                arguments as used in the SearchTuningServiceTransport constructor.
+                If set to None, a transport is chosen automatically.
+            client_options (Optional[Union[google.api_core.client_options.ClientOptions, dict]]):
+                Custom options for the client.
+
+                1. The ``api_endpoint`` property can be used to override the
+                default endpoint provided by the client when ``transport`` is
+                not explicitly provided. Only if this property is not set and
+                ``transport`` was not explicitly provided, the endpoint is
+                determined by the GOOGLE_API_USE_MTLS_ENDPOINT environment
+                variable, which have one of the following values:
+                "always" (always use the default mTLS endpoint), "never" (always
+                use the default regular endpoint) and "auto" (auto-switch to the
+                default mTLS endpoint if client certificate is present; this is
+                the default value).
+
+                2. If the GOOGLE_API_USE_CLIENT_CERTIFICATE environment variable
+                is "true", then the ``client_cert_source`` property can be used
+                to provide a client certificate for mTLS transport. If
+                not provided, the default SSL client certificate will be used if
+                present. If GOOGLE_API_USE_CLIENT_CERTIFICATE is "false" or not
+                set, no client certificate will be used.
+
+                3. The ``universe_domain`` property can be used to override the
+                default "googleapis.com" universe. Note that ``api_endpoint``
+                property still takes precedence; and ``universe_domain`` is
+                currently not supported for mTLS.
+
+            client_info (google.api_core.gapic_v1.client_info.ClientInfo):
+                The client info used to send a user-agent string along with
+                API requests. If ``None``, then default info will be used.
+                Generally, you only need to set this if you're developing
+                your own client library.
+
+        Raises:
+            google.auth.exceptions.MutualTlsChannelError: If mutual TLS transport
+                creation failed for any reason.
+        """
+        self._client = SearchTuningServiceClient(
+            credentials=credentials,
+            transport=transport,
+            client_options=client_options,
+            client_info=client_info,
+        )
+
+    async def train_custom_model(
+        self,
+        request: Optional[
+            Union[search_tuning_service.TrainCustomModelRequest, dict]
+        ] = None,
+        *,
+        retry: OptionalRetry = gapic_v1.method.DEFAULT,
+        timeout: Union[float, object] = gapic_v1.method.DEFAULT,
+        metadata: Sequence[Tuple[str, str]] = (),
+    ) -> operation_async.AsyncOperation:
+        r"""Trains a custom model.
+
+        .. code-block:: python
+
+            # This snippet has been automatically generated and should be regarded as a
+            # code template only.
+            # It will require modifications to work:
+            # - It may require correct/in-range values for request initialization.
+            # - It may require specifying regional endpoints when creating the service
+            #   client as shown in:
+            #   https://googleapis.dev/python/google-api-core/latest/client_options.html
+            from google.cloud import discoveryengine_v1
+
+            async def sample_train_custom_model():
+                # Create a client
+                client = discoveryengine_v1.SearchTuningServiceAsyncClient()
+
+                # Initialize request argument(s)
+                request = discoveryengine_v1.TrainCustomModelRequest(
+                    data_store="data_store_value",
+                )
+
+                # Make the request
+                operation = client.train_custom_model(request=request)
+
+                print("Waiting for operation to complete...")
+
+                response = (await operation).result()
+
+                # Handle the response
+                print(response)
+
+        Args:
+            request (Optional[Union[google.cloud.discoveryengine_v1.types.TrainCustomModelRequest, dict]]):
+                The request object. Request message for
+                [SearchTuningService.TrainCustomModel][google.cloud.discoveryengine.v1.SearchTuningService.TrainCustomModel]
+                method.
+            retry (google.api_core.retry_async.AsyncRetry): Designation of what errors, if any,
+                should be retried.
+            timeout (float): The timeout for this request.
+            metadata (Sequence[Tuple[str, str]]): Strings which should be
+                sent along with the request as metadata.
+
+        Returns:
+            google.api_core.operation_async.AsyncOperation:
+                An object representing a long-running operation.
+
+                The result type for the operation will be :class:`google.cloud.discoveryengine_v1.types.TrainCustomModelResponse` Response of the
+                   [TrainCustomModelRequest][google.cloud.discoveryengine.v1.TrainCustomModelRequest].
+                   This message is returned by the
+                   google.longrunning.Operations.response field.
+
+        """
+        # Create or coerce a protobuf request object.
+        # - Use the request object if provided (there's no risk of modifying the input as
+        #   there are no flattened fields), or create one.
+        if not isinstance(request, search_tuning_service.TrainCustomModelRequest):
+            request = search_tuning_service.TrainCustomModelRequest(request)
+
+        # Wrap the RPC method; this adds retry and timeout information,
+        # and friendly error handling.
+        rpc = self._client._transport._wrapped_methods[
+            self._client._transport.train_custom_model
+        ]
+
+        # Certain fields should be provided within the metadata header;
+        # add these here.
+        metadata = tuple(metadata) + (
+            gapic_v1.routing_header.to_grpc_metadata(
+                (("data_store", request.data_store),)
+            ),
+        )
+
+        # Validate the universe domain.
+        self._client._validate_universe_domain()
+
+        # Send the request.
+        response = await rpc(
+            request,
+            retry=retry,
+            timeout=timeout,
+            metadata=metadata,
+        )
+
+        # Wrap the response in an operation future.
+        response = operation_async.from_gapic(
+            response,
+            self._client._transport.operations_client,
+            search_tuning_service.TrainCustomModelResponse,
+            metadata_type=search_tuning_service.TrainCustomModelMetadata,
+        )
+
+        # Done; return the response.
+        return response
+
+    async def list_custom_models(
+        self,
+        request: Optional[
+            Union[search_tuning_service.ListCustomModelsRequest, dict]
+        ] = None,
+        *,
+        retry: OptionalRetry = gapic_v1.method.DEFAULT,
+        timeout: Union[float, object] = gapic_v1.method.DEFAULT,
+        metadata: Sequence[Tuple[str, str]] = (),
+    ) -> search_tuning_service.ListCustomModelsResponse:
+        r"""Gets a list of all the custom models.
+
+        .. code-block:: python
+
+            # This snippet has been automatically generated and should be regarded as a
+            # code template only.
+            # It will require modifications to work:
+            # - It may require correct/in-range values for request initialization.
+            # - It may require specifying regional endpoints when creating the service
+            #   client as shown in:
+            #   https://googleapis.dev/python/google-api-core/latest/client_options.html
+            from google.cloud import discoveryengine_v1
+
+            async def sample_list_custom_models():
+                # Create a client
+                client = discoveryengine_v1.SearchTuningServiceAsyncClient()
+
+                # Initialize request argument(s)
+                request = discoveryengine_v1.ListCustomModelsRequest(
+                    data_store="data_store_value",
+                )
+
+                # Make the request
+                response = await client.list_custom_models(request=request)
+
+                # Handle the response
+                print(response)
+
+        Args:
+            request (Optional[Union[google.cloud.discoveryengine_v1.types.ListCustomModelsRequest, dict]]):
+                The request object. Request message for
+                [SearchTuningService.ListCustomModels][google.cloud.discoveryengine.v1.SearchTuningService.ListCustomModels]
+                method.
+            retry (google.api_core.retry_async.AsyncRetry): Designation of what errors, if any,
+                should be retried.
+            timeout (float): The timeout for this request.
+            metadata (Sequence[Tuple[str, str]]): Strings which should be
+                sent along with the request as metadata.
+
+        Returns:
+            google.cloud.discoveryengine_v1.types.ListCustomModelsResponse:
+                Response message for
+                   [SearchTuningService.ListCustomModels][google.cloud.discoveryengine.v1.SearchTuningService.ListCustomModels]
+                   method.
+
+        """
+        # Create or coerce a protobuf request object.
+        # - Use the request object if provided (there's no risk of modifying the input as
+        #   there are no flattened fields), or create one.
+        if not isinstance(request, search_tuning_service.ListCustomModelsRequest):
+            request = search_tuning_service.ListCustomModelsRequest(request)
+
+        # Wrap the RPC method; this adds retry and timeout information,
+        # and friendly error handling.
+        rpc = self._client._transport._wrapped_methods[
+            self._client._transport.list_custom_models
+        ]
+
+        # Certain fields should be provided within the metadata header;
+        # add these here.
+        metadata = tuple(metadata) + (
+            gapic_v1.routing_header.to_grpc_metadata(
+                (("data_store", request.data_store),)
+            ),
+        )
+
+        # Validate the universe domain.
+        self._client._validate_universe_domain()
+
+        # Send the request.
+        response = await rpc(
+            request,
+            retry=retry,
+            timeout=timeout,
+            metadata=metadata,
+        )
+
+        # Done; return the response.
+        return response
+
+    async def list_operations(
+        self,
+        request: Optional[operations_pb2.ListOperationsRequest] = None,
+        *,
+        retry: OptionalRetry = gapic_v1.method.DEFAULT,
+        timeout: Union[float, object] = gapic_v1.method.DEFAULT,
+        metadata: Sequence[Tuple[str, str]] = (),
+    ) -> operations_pb2.ListOperationsResponse:
+        r"""Lists operations that match the specified filter in the request.
+
+        Args:
+            request (:class:`~.operations_pb2.ListOperationsRequest`):
+                The request object. Request message for
+                `ListOperations` method.
+            retry (google.api_core.retry_async.AsyncRetry): Designation of what errors,
+                    if any, should be retried.
+            timeout (float): The timeout for this request.
+            metadata (Sequence[Tuple[str, str]]): Strings which should be
+                sent along with the request as metadata.
+        Returns:
+            ~.operations_pb2.ListOperationsResponse:
+                Response message for ``ListOperations`` method.
+        """
+        # Create or coerce a protobuf request object.
+        # The request isn't a proto-plus wrapped type,
+        # so it must be constructed via keyword expansion.
+        if isinstance(request, dict):
+            request = operations_pb2.ListOperationsRequest(**request)
+
+        # Wrap the RPC method; this adds retry and timeout information,
+        # and friendly error handling.
+        rpc = gapic_v1.method_async.wrap_method(
+            self._client._transport.list_operations,
+            default_timeout=None,
+            client_info=DEFAULT_CLIENT_INFO,
+        )
+
+        # Certain fields should be provided within the metadata header;
+        # add these here.
+        metadata = tuple(metadata) + (
+            gapic_v1.routing_header.to_grpc_metadata((("name", request.name),)),
+        )
+
+        # Validate the universe domain.
+        self._client._validate_universe_domain()
+
+        # Send the request.
+        response = await rpc(
+            request,
+            retry=retry,
+            timeout=timeout,
+            metadata=metadata,
+        )
+
+        # Done; return the response.
+        return response
+
+    async def get_operation(
+        self,
+        request: Optional[operations_pb2.GetOperationRequest] = None,
+        *,
+        retry: OptionalRetry = gapic_v1.method.DEFAULT,
+        timeout: Union[float, object] = gapic_v1.method.DEFAULT,
+        metadata: Sequence[Tuple[str, str]] = (),
+    ) -> operations_pb2.Operation:
+        r"""Gets the latest state of a long-running operation.
+
+        Args:
+            request (:class:`~.operations_pb2.GetOperationRequest`):
+                The request object. Request message for
+                `GetOperation` method.
+            retry (google.api_core.retry_async.AsyncRetry): Designation of what errors,
+                    if any, should be retried.
+            timeout (float): The timeout for this request.
+            metadata (Sequence[Tuple[str, str]]): Strings which should be
+                sent along with the request as metadata.
+        Returns:
+            ~.operations_pb2.Operation:
+                An ``Operation`` object.
+        """
+        # Create or coerce a protobuf request object.
+        # The request isn't a proto-plus wrapped type,
+        # so it must be constructed via keyword expansion.
+        if isinstance(request, dict):
+            request = operations_pb2.GetOperationRequest(**request)
+
+        # Wrap the RPC method; this adds retry and timeout information,
+        # and friendly error handling.
+        rpc = gapic_v1.method_async.wrap_method(
+            self._client._transport.get_operation,
+            default_timeout=None,
+            client_info=DEFAULT_CLIENT_INFO,
+        )
+
+        # Certain fields should be provided within the metadata header;
+        # add these here.
+        metadata = tuple(metadata) + (
+            gapic_v1.routing_header.to_grpc_metadata((("name", request.name),)),
+        )
+
+        # Validate the universe domain.
+        self._client._validate_universe_domain()
+
+        # Send the request.
+        response = await rpc(
+            request,
+            retry=retry,
+            timeout=timeout,
+            metadata=metadata,
+        )
+
+        # Done; return the response.
+        return response
+
+    async def cancel_operation(
+        self,
+        request: Optional[operations_pb2.CancelOperationRequest] = None,
+        *,
+        retry: OptionalRetry = gapic_v1.method.DEFAULT,
+        timeout: Union[float, object] = gapic_v1.method.DEFAULT,
+        metadata: Sequence[Tuple[str, str]] = (),
+    ) -> None:
+        r"""Starts asynchronous cancellation on a long-running operation.
+
+        The server makes a best effort to cancel the operation, but success
+        is not guaranteed.  If the server doesn't support this method, it returns
+        `google.rpc.Code.UNIMPLEMENTED`.
+
+        Args:
+            request (:class:`~.operations_pb2.CancelOperationRequest`):
+                The request object. Request message for
+                `CancelOperation` method.
+            retry (google.api_core.retry_async.AsyncRetry): Designation of what errors,
+                    if any, should be retried.
+            timeout (float): The timeout for this request.
+            metadata (Sequence[Tuple[str, str]]): Strings which should be
+                sent along with the request as metadata.
+        Returns:
+            None
+        """
+        # Create or coerce a protobuf request object.
+        # The request isn't a proto-plus wrapped type,
+        # so it must be constructed via keyword expansion.
+        if isinstance(request, dict):
+            request = operations_pb2.CancelOperationRequest(**request)
+
+        # Wrap the RPC method; this adds retry and timeout information,
+        # and friendly error handling.
+        rpc = gapic_v1.method_async.wrap_method(
+            self._client._transport.cancel_operation,
+            default_timeout=None,
+            client_info=DEFAULT_CLIENT_INFO,
+        )
+
+        # Certain fields should be provided within the metadata header;
+        # add these here.
+        metadata = tuple(metadata) + (
+            gapic_v1.routing_header.to_grpc_metadata((("name", request.name),)),
+        )
+
+        # Validate the universe domain.
+        self._client._validate_universe_domain()
+
+        # Send the request.
+        await rpc(
+            request,
+            retry=retry,
+            timeout=timeout,
+            metadata=metadata,
+        )
+
+    async def __aenter__(self) -> "SearchTuningServiceAsyncClient":
+        return self
+
+    async def __aexit__(self, exc_type, exc, tb):
+        await self.transport.close()
+
+
+DEFAULT_CLIENT_INFO = gapic_v1.client_info.ClientInfo(
+    gapic_version=package_version.__version__
+)
+
+
+__all__ = ("SearchTuningServiceAsyncClient",)
diff --git a/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/services/gateway_service/client.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/search_tuning_service/client.py
similarity index 51%
rename from packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/services/gateway_service/client.py
rename to packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/search_tuning_service/client.py
index bc179d1d0508..97d62eb19d51 100644
--- a/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/services/gateway_service/client.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/search_tuning_service/client.py
@@ -41,23 +41,31 @@
 from google.auth.transport.grpc import SslCredentials  # type: ignore
 from google.oauth2 import service_account  # type: ignore
 
-from google.cloud.gkeconnect.gateway_v1beta1 import gapic_version as package_version
+from google.cloud.discoveryengine_v1 import gapic_version as package_version
 
 try:
     OptionalRetry = Union[retries.Retry, gapic_v1.method._MethodDefault, None]
 except AttributeError:  # pragma: NO COVER
     OptionalRetry = Union[retries.Retry, object, None]  # type: ignore
 
-from google.api import httpbody_pb2  # type: ignore
-from google.protobuf import any_pb2  # type: ignore
+from google.api_core import operation  # type: ignore
+from google.api_core import operation_async  # type: ignore
+from google.cloud.location import locations_pb2  # type: ignore
+from google.longrunning import operations_pb2  # type: ignore
 
-from .transports.base import DEFAULT_CLIENT_INFO, GatewayServiceTransport
-from .transports.grpc import GatewayServiceGrpcTransport
-from .transports.grpc_asyncio import GatewayServiceGrpcAsyncIOTransport
+from google.cloud.discoveryengine_v1.types import (
+    custom_tuning_model,
+    search_tuning_service,
+)
+
+from .transports.base import DEFAULT_CLIENT_INFO, SearchTuningServiceTransport
+from .transports.grpc import SearchTuningServiceGrpcTransport
+from .transports.grpc_asyncio import SearchTuningServiceGrpcAsyncIOTransport
+from .transports.rest import SearchTuningServiceRestTransport
 
 
-class GatewayServiceClientMeta(type):
-    """Metaclass for the GatewayService client.
+class SearchTuningServiceClientMeta(type):
+    """Metaclass for the SearchTuningService client.
 
     This provides class-level methods for building and retrieving
     support objects (e.g. transport) without polluting the client instance
@@ -66,14 +74,15 @@ class GatewayServiceClientMeta(type):
 
     _transport_registry = (
         OrderedDict()
-    )  # type: Dict[str, Type[GatewayServiceTransport]]
-    _transport_registry["grpc"] = GatewayServiceGrpcTransport
-    _transport_registry["grpc_asyncio"] = GatewayServiceGrpcAsyncIOTransport
+    )  # type: Dict[str, Type[SearchTuningServiceTransport]]
+    _transport_registry["grpc"] = SearchTuningServiceGrpcTransport
+    _transport_registry["grpc_asyncio"] = SearchTuningServiceGrpcAsyncIOTransport
+    _transport_registry["rest"] = SearchTuningServiceRestTransport
 
     def get_transport_class(
         cls,
         label: Optional[str] = None,
-    ) -> Type[GatewayServiceTransport]:
+    ) -> Type[SearchTuningServiceTransport]:
         """Returns an appropriate transport class.
 
         Args:
@@ -92,14 +101,8 @@ def get_transport_class(
         return next(iter(cls._transport_registry.values()))
 
 
-class GatewayServiceClient(metaclass=GatewayServiceClientMeta):
-    """Gateway service is a public API which works as a Kubernetes
-    resource model proxy between end users and registered Kubernetes
-    clusters. Each RPC in this service matches with an HTTP verb.
-    End user will initiate kubectl commands against the Gateway
-    service, and Gateway service will forward user requests to
-    clusters.
-    """
+class SearchTuningServiceClient(metaclass=SearchTuningServiceClientMeta):
+    """Service for search tuning."""
 
     @staticmethod
     def _get_default_mtls_endpoint(api_endpoint):
@@ -132,12 +135,12 @@ def _get_default_mtls_endpoint(api_endpoint):
         return api_endpoint.replace(".googleapis.com", ".mtls.googleapis.com")
 
     # Note: DEFAULT_ENDPOINT is deprecated. Use _DEFAULT_ENDPOINT_TEMPLATE instead.
-    DEFAULT_ENDPOINT = "connectgateway.googleapis.com"
+    DEFAULT_ENDPOINT = "discoveryengine.googleapis.com"
     DEFAULT_MTLS_ENDPOINT = _get_default_mtls_endpoint.__func__(  # type: ignore
         DEFAULT_ENDPOINT
     )
 
-    _DEFAULT_ENDPOINT_TEMPLATE = "connectgateway.{UNIVERSE_DOMAIN}"
+    _DEFAULT_ENDPOINT_TEMPLATE = "discoveryengine.{UNIVERSE_DOMAIN}"
     _DEFAULT_UNIVERSE = "googleapis.com"
 
     @classmethod
@@ -151,7 +154,7 @@ def from_service_account_info(cls, info: dict, *args, **kwargs):
             kwargs: Additional arguments to pass to the constructor.
 
         Returns:
-            GatewayServiceClient: The constructed client.
+            SearchTuningServiceClient: The constructed client.
         """
         credentials = service_account.Credentials.from_service_account_info(info)
         kwargs["credentials"] = credentials
@@ -169,7 +172,7 @@ def from_service_account_file(cls, filename: str, *args, **kwargs):
             kwargs: Additional arguments to pass to the constructor.
 
         Returns:
-            GatewayServiceClient: The constructed client.
+            SearchTuningServiceClient: The constructed client.
         """
         credentials = service_account.Credentials.from_service_account_file(filename)
         kwargs["credentials"] = credentials
@@ -178,15 +181,61 @@ def from_service_account_file(cls, filename: str, *args, **kwargs):
     from_service_account_json = from_service_account_file
 
     @property
-    def transport(self) -> GatewayServiceTransport:
+    def transport(self) -> SearchTuningServiceTransport:
         """Returns the transport used by the client instance.
 
         Returns:
-            GatewayServiceTransport: The transport used by the client
+            SearchTuningServiceTransport: The transport used by the client
                 instance.
         """
         return self._transport
 
+    @staticmethod
+    def custom_tuning_model_path(
+        project: str,
+        location: str,
+        data_store: str,
+        custom_tuning_model: str,
+    ) -> str:
+        """Returns a fully-qualified custom_tuning_model string."""
+        return "projects/{project}/locations/{location}/dataStores/{data_store}/customTuningModels/{custom_tuning_model}".format(
+            project=project,
+            location=location,
+            data_store=data_store,
+            custom_tuning_model=custom_tuning_model,
+        )
+
+    @staticmethod
+    def parse_custom_tuning_model_path(path: str) -> Dict[str, str]:
+        """Parses a custom_tuning_model path into its component segments."""
+        m = re.match(
+            r"^projects/(?P<project>.+?)/locations/(?P<location>.+?)/dataStores/(?P<data_store>.+?)/customTuningModels/(?P<custom_tuning_model>.+?)$",
+            path,
+        )
+        return m.groupdict() if m else {}
+
+    @staticmethod
+    def data_store_path(
+        project: str,
+        location: str,
+        data_store: str,
+    ) -> str:
+        """Returns a fully-qualified data_store string."""
+        return "projects/{project}/locations/{location}/dataStores/{data_store}".format(
+            project=project,
+            location=location,
+            data_store=data_store,
+        )
+
+    @staticmethod
+    def parse_data_store_path(path: str) -> Dict[str, str]:
+        """Parses a data_store path into its component segments."""
+        m = re.match(
+            r"^projects/(?P<project>.+?)/locations/(?P<location>.+?)/dataStores/(?P<data_store>.+?)$",
+            path,
+        )
+        return m.groupdict() if m else {}
+
     @staticmethod
     def common_billing_account_path(
         billing_account: str,
@@ -406,14 +455,14 @@ def _get_api_endpoint(
         elif use_mtls_endpoint == "always" or (
             use_mtls_endpoint == "auto" and client_cert_source
         ):
-            _default_universe = GatewayServiceClient._DEFAULT_UNIVERSE
+            _default_universe = SearchTuningServiceClient._DEFAULT_UNIVERSE
             if universe_domain != _default_universe:
                 raise MutualTLSChannelError(
                     f"mTLS is not supported in any universe other than {_default_universe}."
                 )
-            api_endpoint = GatewayServiceClient.DEFAULT_MTLS_ENDPOINT
+            api_endpoint = SearchTuningServiceClient.DEFAULT_MTLS_ENDPOINT
         else:
-            api_endpoint = GatewayServiceClient._DEFAULT_ENDPOINT_TEMPLATE.format(
+            api_endpoint = SearchTuningServiceClient._DEFAULT_ENDPOINT_TEMPLATE.format(
                 UNIVERSE_DOMAIN=universe_domain
             )
         return api_endpoint
@@ -434,7 +483,7 @@ def _get_universe_domain(
         Raises:
             ValueError: If the universe domain is an empty string.
         """
-        universe_domain = GatewayServiceClient._DEFAULT_UNIVERSE
+        universe_domain = SearchTuningServiceClient._DEFAULT_UNIVERSE
         if client_universe_domain is not None:
             universe_domain = client_universe_domain
         elif universe_domain_env is not None:
@@ -460,7 +509,7 @@ def _compare_universes(
             ValueError: when client_universe does not match the universe in credentials.
         """
 
-        default_universe = GatewayServiceClient._DEFAULT_UNIVERSE
+        default_universe = SearchTuningServiceClient._DEFAULT_UNIVERSE
         credentials_universe = getattr(credentials, "universe_domain", default_universe)
 
         if client_universe != credentials_universe:
@@ -484,7 +533,7 @@ def _validate_universe_domain(self):
         """
         self._is_universe_domain_valid = (
             self._is_universe_domain_valid
-            or GatewayServiceClient._compare_universes(
+            or SearchTuningServiceClient._compare_universes(
                 self.universe_domain, self.transport._credentials
             )
         )
@@ -513,12 +562,16 @@ def __init__(
         *,
         credentials: Optional[ga_credentials.Credentials] = None,
         transport: Optional[
-            Union[str, GatewayServiceTransport, Callable[..., GatewayServiceTransport]]
+            Union[
+                str,
+                SearchTuningServiceTransport,
+                Callable[..., SearchTuningServiceTransport],
+            ]
         ] = None,
         client_options: Optional[Union[client_options_lib.ClientOptions, dict]] = None,
         client_info: gapic_v1.client_info.ClientInfo = DEFAULT_CLIENT_INFO,
     ) -> None:
-        """Instantiates the gateway service client.
+        """Instantiates the search tuning service client.
 
         Args:
             credentials (Optional[google.auth.credentials.Credentials]): The
@@ -526,10 +579,10 @@ def __init__(
                 credentials identify the application to the service; if none
                 are specified, the client will attempt to ascertain the
                 credentials from the environment.
-            transport (Optional[Union[str,GatewayServiceTransport,Callable[..., GatewayServiceTransport]]]):
+            transport (Optional[Union[str,SearchTuningServiceTransport,Callable[..., SearchTuningServiceTransport]]]):
                 The transport to use, or a Callable that constructs and returns a new transport.
                 If a Callable is given, it will be called with the same set of initialization
-                arguments as used in the GatewayServiceTransport constructor.
+                arguments as used in the SearchTuningServiceTransport constructor.
                 If set to None, a transport is chosen automatically.
             client_options (Optional[Union[google.api_core.client_options.ClientOptions, dict]]):
                 Custom options for the client.
@@ -582,11 +635,11 @@ def __init__(
             self._use_client_cert,
             self._use_mtls_endpoint,
             self._universe_domain_env,
-        ) = GatewayServiceClient._read_environment_variables()
-        self._client_cert_source = GatewayServiceClient._get_client_cert_source(
+        ) = SearchTuningServiceClient._read_environment_variables()
+        self._client_cert_source = SearchTuningServiceClient._get_client_cert_source(
             self._client_options.client_cert_source, self._use_client_cert
         )
-        self._universe_domain = GatewayServiceClient._get_universe_domain(
+        self._universe_domain = SearchTuningServiceClient._get_universe_domain(
             universe_domain_opt, self._universe_domain_env
         )
         self._api_endpoint = None  # updated below, depending on `transport`
@@ -603,9 +656,9 @@ def __init__(
         # Save or instantiate the transport.
         # Ordinarily, we provide the transport, but allowing a custom transport
         # instance provides an extensibility point for unusual situations.
-        transport_provided = isinstance(transport, GatewayServiceTransport)
+        transport_provided = isinstance(transport, SearchTuningServiceTransport)
         if transport_provided:
-            # transport is a GatewayServiceTransport instance.
+            # transport is a SearchTuningServiceTransport instance.
             if credentials or self._client_options.credentials_file or api_key_value:
                 raise ValueError(
                     "When providing a transport instance, "
@@ -616,12 +669,12 @@ def __init__(
                     "When providing a transport instance, provide its scopes "
                     "directly."
                 )
-            self._transport = cast(GatewayServiceTransport, transport)
+            self._transport = cast(SearchTuningServiceTransport, transport)
             self._api_endpoint = self._transport.host
 
         self._api_endpoint = (
             self._api_endpoint
-            or GatewayServiceClient._get_api_endpoint(
+            or SearchTuningServiceClient._get_api_endpoint(
                 self._client_options.api_endpoint,
                 self._client_cert_source,
                 self._universe_domain,
@@ -640,11 +693,12 @@ def __init__(
                 )
 
             transport_init: Union[
-                Type[GatewayServiceTransport], Callable[..., GatewayServiceTransport]
+                Type[SearchTuningServiceTransport],
+                Callable[..., SearchTuningServiceTransport],
             ] = (
-                GatewayServiceClient.get_transport_class(transport)
+                SearchTuningServiceClient.get_transport_class(transport)
                 if isinstance(transport, str) or transport is None
-                else cast(Callable[..., GatewayServiceTransport], transport)
+                else cast(Callable[..., SearchTuningServiceTransport], transport)
             )
             # initialize with the provided callable or the passed in class
             self._transport = transport_init(
@@ -659,16 +713,17 @@ def __init__(
                 api_audience=self._client_options.api_audience,
             )
 
-    def get_resource(
+    def train_custom_model(
         self,
-        request: Optional[Union[httpbody_pb2.HttpBody, dict]] = None,
+        request: Optional[
+            Union[search_tuning_service.TrainCustomModelRequest, dict]
+        ] = None,
         *,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
         timeout: Union[float, object] = gapic_v1.method.DEFAULT,
         metadata: Sequence[Tuple[str, str]] = (),
-    ) -> httpbody_pb2.HttpBody:
-        r"""GetResource performs an HTTP GET request on the
-        Kubernetes API Server.
+    ) -> operation.Operation:
+        r"""Trains a custom model.
 
         .. code-block:: python
 
@@ -679,74 +734,32 @@ def get_resource(
             # - It may require specifying regional endpoints when creating the service
             #   client as shown in:
             #   https://googleapis.dev/python/google-api-core/latest/client_options.html
-            from google.api import httpbody_pb2  # type: ignore
-            from google.cloud.gkeconnect import gateway_v1beta1
+            from google.cloud import discoveryengine_v1
 
-            def sample_get_resource():
+            def sample_train_custom_model():
                 # Create a client
-                client = gateway_v1beta1.GatewayServiceClient()
+                client = discoveryengine_v1.SearchTuningServiceClient()
 
                 # Initialize request argument(s)
-                request = httpbody_pb2.HttpBody(
+                request = discoveryengine_v1.TrainCustomModelRequest(
+                    data_store="data_store_value",
                 )
 
                 # Make the request
-                response = client.get_resource(request=request)
+                operation = client.train_custom_model(request=request)
+
+                print("Waiting for operation to complete...")
+
+                response = operation.result()
 
                 # Handle the response
                 print(response)
 
         Args:
-            request (Union[google.api.httpbody_pb2.HttpBody, dict]):
-                The request object. Message that represents an arbitrary HTTP body. It
-                should only be used for payload formats that can't be
-                represented as JSON, such as raw binary or an HTML page.
-
-                This message can be used both in streaming and
-                non-streaming API methods in the request as well as the
-                response.
-
-                It can be used as a top-level request field, which is
-                convenient if one wants to extract parameters from
-                either the URL or HTTP template into the request fields
-                and also want access to the raw HTTP body.
-
-                Example:
-
-                ::
-
-                    message GetResourceRequest {
-                      // A unique request id.
-                      string request_id = 1;
-
-                      // The raw HTTP body is bound to this field.
-                      google.api.HttpBody http_body = 2;
-
-                    }
-
-                    service ResourceService {
-                      rpc GetResource(GetResourceRequest)
-                        returns (google.api.HttpBody);
-                      rpc UpdateResource(google.api.HttpBody)
-                        returns (google.protobuf.Empty);
-
-                    }
-
-                Example with streaming methods:
-
-                ::
-
-                    service CaldavService {
-                      rpc GetCalendar(stream google.api.HttpBody)
-                        returns (stream google.api.HttpBody);
-                      rpc UpdateCalendar(stream google.api.HttpBody)
-                        returns (stream google.api.HttpBody);
-
-                    }
-
-                Use of this type only changes how the request and
-                response bodies are handled, all other features will
-                continue to work unchanged.
+            request (Union[google.cloud.discoveryengine_v1.types.TrainCustomModelRequest, dict]):
+                The request object. Request message for
+                [SearchTuningService.TrainCustomModel][google.cloud.discoveryengine.v1.SearchTuningService.TrainCustomModel]
+                method.
             retry (google.api_core.retry.Retry): Designation of what errors, if any,
                 should be retried.
             timeout (float): The timeout for this request.
@@ -754,67 +767,32 @@ def sample_get_resource():
                 sent along with the request as metadata.
 
         Returns:
-            google.api.httpbody_pb2.HttpBody:
-                Message that represents an arbitrary HTTP body. It should only be used for
-                   payload formats that can't be represented as JSON,
-                   such as raw binary or an HTML page.
-
-                   This message can be used both in streaming and
-                   non-streaming API methods in the request as well as
-                   the response.
-
-                   It can be used as a top-level request field, which is
-                   convenient if one wants to extract parameters from
-                   either the URL or HTTP template into the request
-                   fields and also want access to the raw HTTP body.
-
-                   Example:
-
-                      message GetResourceRequest {
-                         // A unique request id. string request_id = 1;
-
-                         // The raw HTTP body is bound to this field.
-                         google.api.HttpBody http_body = 2;
-
-                      }
-
-                      service ResourceService {
-                         rpc GetResource(GetResourceRequest)
-                            returns (google.api.HttpBody);
-
-                         rpc UpdateResource(google.api.HttpBody)
-                            returns (google.protobuf.Empty);
-
-                      }
-
-                   Example with streaming methods:
+            google.api_core.operation.Operation:
+                An object representing a long-running operation.
 
-                      service CaldavService {
-                         rpc GetCalendar(stream google.api.HttpBody)
-                            returns (stream google.api.HttpBody);
-
-                         rpc UpdateCalendar(stream google.api.HttpBody)
-                            returns (stream google.api.HttpBody);
-
-                      }
-
-                   Use of this type only changes how the request and
-                   response bodies are handled, all other features will
-                   continue to work unchanged.
+                The result type for the operation will be :class:`google.cloud.discoveryengine_v1.types.TrainCustomModelResponse` Response of the
+                   [TrainCustomModelRequest][google.cloud.discoveryengine.v1.TrainCustomModelRequest].
+                   This message is returned by the
+                   google.longrunning.Operations.response field.
 
         """
         # Create or coerce a protobuf request object.
-        if isinstance(request, dict):
-            # - The request isn't a proto-plus wrapped type,
-            #   so it must be constructed via keyword expansion.
-            request = httpbody_pb2.HttpBody(**request)
-        elif not request:
-            # Null request, just make one.
-            request = httpbody_pb2.HttpBody()
+        # - Use the request object if provided (there's no risk of modifying the input as
+        #   there are no flattened fields), or create one.
+        if not isinstance(request, search_tuning_service.TrainCustomModelRequest):
+            request = search_tuning_service.TrainCustomModelRequest(request)
 
         # Wrap the RPC method; this adds retry and timeout information,
         # and friendly error handling.
-        rpc = self._transport._wrapped_methods[self._transport.get_resource]
+        rpc = self._transport._wrapped_methods[self._transport.train_custom_model]
+
+        # Certain fields should be provided within the metadata header;
+        # add these here.
+        metadata = tuple(metadata) + (
+            gapic_v1.routing_header.to_grpc_metadata(
+                (("data_store", request.data_store),)
+            ),
+        )
 
         # Validate the universe domain.
         self._validate_universe_domain()
@@ -827,19 +805,28 @@ def sample_get_resource():
             metadata=metadata,
         )
 
+        # Wrap the response in an operation future.
+        response = operation.from_gapic(
+            response,
+            self._transport.operations_client,
+            search_tuning_service.TrainCustomModelResponse,
+            metadata_type=search_tuning_service.TrainCustomModelMetadata,
+        )
+
         # Done; return the response.
         return response
 
-    def post_resource(
+    def list_custom_models(
         self,
-        request: Optional[Union[httpbody_pb2.HttpBody, dict]] = None,
+        request: Optional[
+            Union[search_tuning_service.ListCustomModelsRequest, dict]
+        ] = None,
         *,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
         timeout: Union[float, object] = gapic_v1.method.DEFAULT,
         metadata: Sequence[Tuple[str, str]] = (),
-    ) -> httpbody_pb2.HttpBody:
-        r"""PostResource performs an HTTP POST on the Kubernetes
-        API Server.
+    ) -> search_tuning_service.ListCustomModelsResponse:
+        r"""Gets a list of all the custom models.
 
         .. code-block:: python
 
@@ -850,74 +837,28 @@ def post_resource(
             # - It may require specifying regional endpoints when creating the service
             #   client as shown in:
             #   https://googleapis.dev/python/google-api-core/latest/client_options.html
-            from google.api import httpbody_pb2  # type: ignore
-            from google.cloud.gkeconnect import gateway_v1beta1
+            from google.cloud import discoveryengine_v1
 
-            def sample_post_resource():
+            def sample_list_custom_models():
                 # Create a client
-                client = gateway_v1beta1.GatewayServiceClient()
+                client = discoveryengine_v1.SearchTuningServiceClient()
 
                 # Initialize request argument(s)
-                request = httpbody_pb2.HttpBody(
+                request = discoveryengine_v1.ListCustomModelsRequest(
+                    data_store="data_store_value",
                 )
 
                 # Make the request
-                response = client.post_resource(request=request)
+                response = client.list_custom_models(request=request)
 
                 # Handle the response
                 print(response)
 
         Args:
-            request (Union[google.api.httpbody_pb2.HttpBody, dict]):
-                The request object. Message that represents an arbitrary HTTP body. It
-                should only be used for payload formats that can't be
-                represented as JSON, such as raw binary or an HTML page.
-
-                This message can be used both in streaming and
-                non-streaming API methods in the request as well as the
-                response.
-
-                It can be used as a top-level request field, which is
-                convenient if one wants to extract parameters from
-                either the URL or HTTP template into the request fields
-                and also want access to the raw HTTP body.
-
-                Example:
-
-                ::
-
-                    message GetResourceRequest {
-                      // A unique request id.
-                      string request_id = 1;
-
-                      // The raw HTTP body is bound to this field.
-                      google.api.HttpBody http_body = 2;
-
-                    }
-
-                    service ResourceService {
-                      rpc GetResource(GetResourceRequest)
-                        returns (google.api.HttpBody);
-                      rpc UpdateResource(google.api.HttpBody)
-                        returns (google.protobuf.Empty);
-
-                    }
-
-                Example with streaming methods:
-
-                ::
-
-                    service CaldavService {
-                      rpc GetCalendar(stream google.api.HttpBody)
-                        returns (stream google.api.HttpBody);
-                      rpc UpdateCalendar(stream google.api.HttpBody)
-                        returns (stream google.api.HttpBody);
-
-                    }
-
-                Use of this type only changes how the request and
-                response bodies are handled, all other features will
-                continue to work unchanged.
+            request (Union[google.cloud.discoveryengine_v1.types.ListCustomModelsRequest, dict]):
+                The request object. Request message for
+                [SearchTuningService.ListCustomModels][google.cloud.discoveryengine.v1.SearchTuningService.ListCustomModels]
+                method.
             retry (google.api_core.retry.Retry): Designation of what errors, if any,
                 should be retried.
             timeout (float): The timeout for this request.
@@ -925,67 +866,29 @@ def sample_post_resource():
                 sent along with the request as metadata.
 
         Returns:
-            google.api.httpbody_pb2.HttpBody:
-                Message that represents an arbitrary HTTP body. It should only be used for
-                   payload formats that can't be represented as JSON,
-                   such as raw binary or an HTML page.
-
-                   This message can be used both in streaming and
-                   non-streaming API methods in the request as well as
-                   the response.
-
-                   It can be used as a top-level request field, which is
-                   convenient if one wants to extract parameters from
-                   either the URL or HTTP template into the request
-                   fields and also want access to the raw HTTP body.
-
-                   Example:
-
-                      message GetResourceRequest {
-                         // A unique request id. string request_id = 1;
-
-                         // The raw HTTP body is bound to this field.
-                         google.api.HttpBody http_body = 2;
-
-                      }
-
-                      service ResourceService {
-                         rpc GetResource(GetResourceRequest)
-                            returns (google.api.HttpBody);
-
-                         rpc UpdateResource(google.api.HttpBody)
-                            returns (google.protobuf.Empty);
-
-                      }
-
-                   Example with streaming methods:
-
-                      service CaldavService {
-                         rpc GetCalendar(stream google.api.HttpBody)
-                            returns (stream google.api.HttpBody);
-
-                         rpc UpdateCalendar(stream google.api.HttpBody)
-                            returns (stream google.api.HttpBody);
-
-                      }
-
-                   Use of this type only changes how the request and
-                   response bodies are handled, all other features will
-                   continue to work unchanged.
+            google.cloud.discoveryengine_v1.types.ListCustomModelsResponse:
+                Response message for
+                   [SearchTuningService.ListCustomModels][google.cloud.discoveryengine.v1.SearchTuningService.ListCustomModels]
+                   method.
 
         """
         # Create or coerce a protobuf request object.
-        if isinstance(request, dict):
-            # - The request isn't a proto-plus wrapped type,
-            #   so it must be constructed via keyword expansion.
-            request = httpbody_pb2.HttpBody(**request)
-        elif not request:
-            # Null request, just make one.
-            request = httpbody_pb2.HttpBody()
+        # - Use the request object if provided (there's no risk of modifying the input as
+        #   there are no flattened fields), or create one.
+        if not isinstance(request, search_tuning_service.ListCustomModelsRequest):
+            request = search_tuning_service.ListCustomModelsRequest(request)
 
         # Wrap the RPC method; this adds retry and timeout information,
         # and friendly error handling.
-        rpc = self._transport._wrapped_methods[self._transport.post_resource]
+        rpc = self._transport._wrapped_methods[self._transport.list_custom_models]
+
+        # Certain fields should be provided within the metadata header;
+        # add these here.
+        metadata = tuple(metadata) + (
+            gapic_v1.routing_header.to_grpc_metadata(
+                (("data_store", request.data_store),)
+            ),
+        )
 
         # Validate the universe domain.
         self._validate_universe_domain()
@@ -1001,162 +904,61 @@ def sample_post_resource():
         # Done; return the response.
         return response
 
-    def delete_resource(
+    def __enter__(self) -> "SearchTuningServiceClient":
+        return self
+
+    def __exit__(self, type, value, traceback):
+        """Releases underlying transport's resources.
+
+        .. warning::
+            ONLY use as a context manager if the transport is NOT shared
+            with other clients! Exiting the with block will CLOSE the transport
+            and may cause errors in other clients!
+        """
+        self.transport.close()
+
+    def list_operations(
         self,
-        request: Optional[Union[httpbody_pb2.HttpBody, dict]] = None,
+        request: Optional[operations_pb2.ListOperationsRequest] = None,
         *,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
         timeout: Union[float, object] = gapic_v1.method.DEFAULT,
         metadata: Sequence[Tuple[str, str]] = (),
-    ) -> httpbody_pb2.HttpBody:
-        r"""DeleteResource performs an HTTP DELETE on the
-        Kubernetes API Server.
-
-        .. code-block:: python
-
-            # This snippet has been automatically generated and should be regarded as a
-            # code template only.
-            # It will require modifications to work:
-            # - It may require correct/in-range values for request initialization.
-            # - It may require specifying regional endpoints when creating the service
-            #   client as shown in:
-            #   https://googleapis.dev/python/google-api-core/latest/client_options.html
-            from google.api import httpbody_pb2  # type: ignore
-            from google.cloud.gkeconnect import gateway_v1beta1
-
-            def sample_delete_resource():
-                # Create a client
-                client = gateway_v1beta1.GatewayServiceClient()
-
-                # Initialize request argument(s)
-                request = httpbody_pb2.HttpBody(
-                )
-
-                # Make the request
-                response = client.delete_resource(request=request)
-
-                # Handle the response
-                print(response)
+    ) -> operations_pb2.ListOperationsResponse:
+        r"""Lists operations that match the specified filter in the request.
 
         Args:
-            request (Union[google.api.httpbody_pb2.HttpBody, dict]):
-                The request object. Message that represents an arbitrary HTTP body. It
-                should only be used for payload formats that can't be
-                represented as JSON, such as raw binary or an HTML page.
-
-                This message can be used both in streaming and
-                non-streaming API methods in the request as well as the
-                response.
-
-                It can be used as a top-level request field, which is
-                convenient if one wants to extract parameters from
-                either the URL or HTTP template into the request fields
-                and also want access to the raw HTTP body.
-
-                Example:
-
-                ::
-
-                    message GetResourceRequest {
-                      // A unique request id.
-                      string request_id = 1;
-
-                      // The raw HTTP body is bound to this field.
-                      google.api.HttpBody http_body = 2;
-
-                    }
-
-                    service ResourceService {
-                      rpc GetResource(GetResourceRequest)
-                        returns (google.api.HttpBody);
-                      rpc UpdateResource(google.api.HttpBody)
-                        returns (google.protobuf.Empty);
-
-                    }
-
-                Example with streaming methods:
-
-                ::
-
-                    service CaldavService {
-                      rpc GetCalendar(stream google.api.HttpBody)
-                        returns (stream google.api.HttpBody);
-                      rpc UpdateCalendar(stream google.api.HttpBody)
-                        returns (stream google.api.HttpBody);
-
-                    }
-
-                Use of this type only changes how the request and
-                response bodies are handled, all other features will
-                continue to work unchanged.
-            retry (google.api_core.retry.Retry): Designation of what errors, if any,
-                should be retried.
+            request (:class:`~.operations_pb2.ListOperationsRequest`):
+                The request object. Request message for
+                `ListOperations` method.
+            retry (google.api_core.retry.Retry): Designation of what errors,
+                    if any, should be retried.
             timeout (float): The timeout for this request.
             metadata (Sequence[Tuple[str, str]]): Strings which should be
                 sent along with the request as metadata.
-
         Returns:
-            google.api.httpbody_pb2.HttpBody:
-                Message that represents an arbitrary HTTP body. It should only be used for
-                   payload formats that can't be represented as JSON,
-                   such as raw binary or an HTML page.
-
-                   This message can be used both in streaming and
-                   non-streaming API methods in the request as well as
-                   the response.
-
-                   It can be used as a top-level request field, which is
-                   convenient if one wants to extract parameters from
-                   either the URL or HTTP template into the request
-                   fields and also want access to the raw HTTP body.
-
-                   Example:
-
-                      message GetResourceRequest {
-                         // A unique request id. string request_id = 1;
-
-                         // The raw HTTP body is bound to this field.
-                         google.api.HttpBody http_body = 2;
-
-                      }
-
-                      service ResourceService {
-                         rpc GetResource(GetResourceRequest)
-                            returns (google.api.HttpBody);
-
-                         rpc UpdateResource(google.api.HttpBody)
-                            returns (google.protobuf.Empty);
-
-                      }
-
-                   Example with streaming methods:
-
-                      service CaldavService {
-                         rpc GetCalendar(stream google.api.HttpBody)
-                            returns (stream google.api.HttpBody);
-
-                         rpc UpdateCalendar(stream google.api.HttpBody)
-                            returns (stream google.api.HttpBody);
-
-                      }
-
-                   Use of this type only changes how the request and
-                   response bodies are handled, all other features will
-                   continue to work unchanged.
-
+            ~.operations_pb2.ListOperationsResponse:
+                Response message for ``ListOperations`` method.
         """
         # Create or coerce a protobuf request object.
+        # The request isn't a proto-plus wrapped type,
+        # so it must be constructed via keyword expansion.
         if isinstance(request, dict):
-            # - The request isn't a proto-plus wrapped type,
-            #   so it must be constructed via keyword expansion.
-            request = httpbody_pb2.HttpBody(**request)
-        elif not request:
-            # Null request, just make one.
-            request = httpbody_pb2.HttpBody()
+            request = operations_pb2.ListOperationsRequest(**request)
 
         # Wrap the RPC method; this adds retry and timeout information,
         # and friendly error handling.
-        rpc = self._transport._wrapped_methods[self._transport.delete_resource]
+        rpc = gapic_v1.method.wrap_method(
+            self._transport.list_operations,
+            default_timeout=None,
+            client_info=DEFAULT_CLIENT_INFO,
+        )
+
+        # Certain fields should be provided within the metadata header;
+        # add these here.
+        metadata = tuple(metadata) + (
+            gapic_v1.routing_header.to_grpc_metadata((("name", request.name),)),
+        )
 
         # Validate the universe domain.
         self._validate_universe_domain()
@@ -1172,162 +974,48 @@ def sample_delete_resource():
         # Done; return the response.
         return response
 
-    def put_resource(
+    def get_operation(
         self,
-        request: Optional[Union[httpbody_pb2.HttpBody, dict]] = None,
+        request: Optional[operations_pb2.GetOperationRequest] = None,
         *,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
         timeout: Union[float, object] = gapic_v1.method.DEFAULT,
         metadata: Sequence[Tuple[str, str]] = (),
-    ) -> httpbody_pb2.HttpBody:
-        r"""PutResource performs an HTTP PUT on the Kubernetes
-        API Server.
-
-        .. code-block:: python
-
-            # This snippet has been automatically generated and should be regarded as a
-            # code template only.
-            # It will require modifications to work:
-            # - It may require correct/in-range values for request initialization.
-            # - It may require specifying regional endpoints when creating the service
-            #   client as shown in:
-            #   https://googleapis.dev/python/google-api-core/latest/client_options.html
-            from google.api import httpbody_pb2  # type: ignore
-            from google.cloud.gkeconnect import gateway_v1beta1
-
-            def sample_put_resource():
-                # Create a client
-                client = gateway_v1beta1.GatewayServiceClient()
-
-                # Initialize request argument(s)
-                request = httpbody_pb2.HttpBody(
-                )
-
-                # Make the request
-                response = client.put_resource(request=request)
-
-                # Handle the response
-                print(response)
+    ) -> operations_pb2.Operation:
+        r"""Gets the latest state of a long-running operation.
 
         Args:
-            request (Union[google.api.httpbody_pb2.HttpBody, dict]):
-                The request object. Message that represents an arbitrary HTTP body. It
-                should only be used for payload formats that can't be
-                represented as JSON, such as raw binary or an HTML page.
-
-                This message can be used both in streaming and
-                non-streaming API methods in the request as well as the
-                response.
-
-                It can be used as a top-level request field, which is
-                convenient if one wants to extract parameters from
-                either the URL or HTTP template into the request fields
-                and also want access to the raw HTTP body.
-
-                Example:
-
-                ::
-
-                    message GetResourceRequest {
-                      // A unique request id.
-                      string request_id = 1;
-
-                      // The raw HTTP body is bound to this field.
-                      google.api.HttpBody http_body = 2;
-
-                    }
-
-                    service ResourceService {
-                      rpc GetResource(GetResourceRequest)
-                        returns (google.api.HttpBody);
-                      rpc UpdateResource(google.api.HttpBody)
-                        returns (google.protobuf.Empty);
-
-                    }
-
-                Example with streaming methods:
-
-                ::
-
-                    service CaldavService {
-                      rpc GetCalendar(stream google.api.HttpBody)
-                        returns (stream google.api.HttpBody);
-                      rpc UpdateCalendar(stream google.api.HttpBody)
-                        returns (stream google.api.HttpBody);
-
-                    }
-
-                Use of this type only changes how the request and
-                response bodies are handled, all other features will
-                continue to work unchanged.
-            retry (google.api_core.retry.Retry): Designation of what errors, if any,
-                should be retried.
+            request (:class:`~.operations_pb2.GetOperationRequest`):
+                The request object. Request message for
+                `GetOperation` method.
+            retry (google.api_core.retry.Retry): Designation of what errors,
+                    if any, should be retried.
             timeout (float): The timeout for this request.
             metadata (Sequence[Tuple[str, str]]): Strings which should be
                 sent along with the request as metadata.
-
         Returns:
-            google.api.httpbody_pb2.HttpBody:
-                Message that represents an arbitrary HTTP body. It should only be used for
-                   payload formats that can't be represented as JSON,
-                   such as raw binary or an HTML page.
-
-                   This message can be used both in streaming and
-                   non-streaming API methods in the request as well as
-                   the response.
-
-                   It can be used as a top-level request field, which is
-                   convenient if one wants to extract parameters from
-                   either the URL or HTTP template into the request
-                   fields and also want access to the raw HTTP body.
-
-                   Example:
-
-                      message GetResourceRequest {
-                         // A unique request id. string request_id = 1;
-
-                         // The raw HTTP body is bound to this field.
-                         google.api.HttpBody http_body = 2;
-
-                      }
-
-                      service ResourceService {
-                         rpc GetResource(GetResourceRequest)
-                            returns (google.api.HttpBody);
-
-                         rpc UpdateResource(google.api.HttpBody)
-                            returns (google.protobuf.Empty);
-
-                      }
-
-                   Example with streaming methods:
-
-                      service CaldavService {
-                         rpc GetCalendar(stream google.api.HttpBody)
-                            returns (stream google.api.HttpBody);
-
-                         rpc UpdateCalendar(stream google.api.HttpBody)
-                            returns (stream google.api.HttpBody);
-
-                      }
-
-                   Use of this type only changes how the request and
-                   response bodies are handled, all other features will
-                   continue to work unchanged.
-
+            ~.operations_pb2.Operation:
+                An ``Operation`` object.
         """
         # Create or coerce a protobuf request object.
+        # The request isn't a proto-plus wrapped type,
+        # so it must be constructed via keyword expansion.
         if isinstance(request, dict):
-            # - The request isn't a proto-plus wrapped type,
-            #   so it must be constructed via keyword expansion.
-            request = httpbody_pb2.HttpBody(**request)
-        elif not request:
-            # Null request, just make one.
-            request = httpbody_pb2.HttpBody()
+            request = operations_pb2.GetOperationRequest(**request)
 
         # Wrap the RPC method; this adds retry and timeout information,
         # and friendly error handling.
-        rpc = self._transport._wrapped_methods[self._transport.put_resource]
+        rpc = gapic_v1.method.wrap_method(
+            self._transport.get_operation,
+            default_timeout=None,
+            client_info=DEFAULT_CLIENT_INFO,
+        )
+
+        # Certain fields should be provided within the metadata header;
+        # add these here.
+        metadata = tuple(metadata) + (
+            gapic_v1.routing_header.to_grpc_metadata((("name", request.name),)),
+        )
 
         # Validate the universe domain.
         self._validate_universe_domain()
@@ -1343,194 +1031,67 @@ def sample_put_resource():
         # Done; return the response.
         return response
 
-    def patch_resource(
+    def cancel_operation(
         self,
-        request: Optional[Union[httpbody_pb2.HttpBody, dict]] = None,
+        request: Optional[operations_pb2.CancelOperationRequest] = None,
         *,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
         timeout: Union[float, object] = gapic_v1.method.DEFAULT,
         metadata: Sequence[Tuple[str, str]] = (),
-    ) -> httpbody_pb2.HttpBody:
-        r"""PatchResource performs an HTTP PATCH on the
-        Kubernetes API Server.
-
-        .. code-block:: python
-
-            # This snippet has been automatically generated and should be regarded as a
-            # code template only.
-            # It will require modifications to work:
-            # - It may require correct/in-range values for request initialization.
-            # - It may require specifying regional endpoints when creating the service
-            #   client as shown in:
-            #   https://googleapis.dev/python/google-api-core/latest/client_options.html
-            from google.api import httpbody_pb2  # type: ignore
-            from google.cloud.gkeconnect import gateway_v1beta1
-
-            def sample_patch_resource():
-                # Create a client
-                client = gateway_v1beta1.GatewayServiceClient()
-
-                # Initialize request argument(s)
-                request = httpbody_pb2.HttpBody(
-                )
-
-                # Make the request
-                response = client.patch_resource(request=request)
+    ) -> None:
+        r"""Starts asynchronous cancellation on a long-running operation.
 
-                # Handle the response
-                print(response)
+        The server makes a best effort to cancel the operation, but success
+        is not guaranteed.  If the server doesn't support this method, it returns
+        `google.rpc.Code.UNIMPLEMENTED`.
 
         Args:
-            request (Union[google.api.httpbody_pb2.HttpBody, dict]):
-                The request object. Message that represents an arbitrary HTTP body. It
-                should only be used for payload formats that can't be
-                represented as JSON, such as raw binary or an HTML page.
-
-                This message can be used both in streaming and
-                non-streaming API methods in the request as well as the
-                response.
-
-                It can be used as a top-level request field, which is
-                convenient if one wants to extract parameters from
-                either the URL or HTTP template into the request fields
-                and also want access to the raw HTTP body.
-
-                Example:
-
-                ::
-
-                    message GetResourceRequest {
-                      // A unique request id.
-                      string request_id = 1;
-
-                      // The raw HTTP body is bound to this field.
-                      google.api.HttpBody http_body = 2;
-
-                    }
-
-                    service ResourceService {
-                      rpc GetResource(GetResourceRequest)
-                        returns (google.api.HttpBody);
-                      rpc UpdateResource(google.api.HttpBody)
-                        returns (google.protobuf.Empty);
-
-                    }
-
-                Example with streaming methods:
-
-                ::
-
-                    service CaldavService {
-                      rpc GetCalendar(stream google.api.HttpBody)
-                        returns (stream google.api.HttpBody);
-                      rpc UpdateCalendar(stream google.api.HttpBody)
-                        returns (stream google.api.HttpBody);
-
-                    }
-
-                Use of this type only changes how the request and
-                response bodies are handled, all other features will
-                continue to work unchanged.
-            retry (google.api_core.retry.Retry): Designation of what errors, if any,
-                should be retried.
+            request (:class:`~.operations_pb2.CancelOperationRequest`):
+                The request object. Request message for
+                `CancelOperation` method.
+            retry (google.api_core.retry.Retry): Designation of what errors,
+                    if any, should be retried.
             timeout (float): The timeout for this request.
             metadata (Sequence[Tuple[str, str]]): Strings which should be
                 sent along with the request as metadata.
-
         Returns:
-            google.api.httpbody_pb2.HttpBody:
-                Message that represents an arbitrary HTTP body. It should only be used for
-                   payload formats that can't be represented as JSON,
-                   such as raw binary or an HTML page.
-
-                   This message can be used both in streaming and
-                   non-streaming API methods in the request as well as
-                   the response.
-
-                   It can be used as a top-level request field, which is
-                   convenient if one wants to extract parameters from
-                   either the URL or HTTP template into the request
-                   fields and also want access to the raw HTTP body.
-
-                   Example:
-
-                      message GetResourceRequest {
-                         // A unique request id. string request_id = 1;
-
-                         // The raw HTTP body is bound to this field.
-                         google.api.HttpBody http_body = 2;
-
-                      }
-
-                      service ResourceService {
-                         rpc GetResource(GetResourceRequest)
-                            returns (google.api.HttpBody);
-
-                         rpc UpdateResource(google.api.HttpBody)
-                            returns (google.protobuf.Empty);
-
-                      }
-
-                   Example with streaming methods:
-
-                      service CaldavService {
-                         rpc GetCalendar(stream google.api.HttpBody)
-                            returns (stream google.api.HttpBody);
-
-                         rpc UpdateCalendar(stream google.api.HttpBody)
-                            returns (stream google.api.HttpBody);
-
-                      }
-
-                   Use of this type only changes how the request and
-                   response bodies are handled, all other features will
-                   continue to work unchanged.
-
+            None
         """
         # Create or coerce a protobuf request object.
+        # The request isn't a proto-plus wrapped type,
+        # so it must be constructed via keyword expansion.
         if isinstance(request, dict):
-            # - The request isn't a proto-plus wrapped type,
-            #   so it must be constructed via keyword expansion.
-            request = httpbody_pb2.HttpBody(**request)
-        elif not request:
-            # Null request, just make one.
-            request = httpbody_pb2.HttpBody()
+            request = operations_pb2.CancelOperationRequest(**request)
 
         # Wrap the RPC method; this adds retry and timeout information,
         # and friendly error handling.
-        rpc = self._transport._wrapped_methods[self._transport.patch_resource]
+        rpc = gapic_v1.method.wrap_method(
+            self._transport.cancel_operation,
+            default_timeout=None,
+            client_info=DEFAULT_CLIENT_INFO,
+        )
+
+        # Certain fields should be provided within the metadata header;
+        # add these here.
+        metadata = tuple(metadata) + (
+            gapic_v1.routing_header.to_grpc_metadata((("name", request.name),)),
+        )
 
         # Validate the universe domain.
         self._validate_universe_domain()
 
         # Send the request.
-        response = rpc(
+        rpc(
             request,
             retry=retry,
             timeout=timeout,
             metadata=metadata,
         )
 
-        # Done; return the response.
-        return response
-
-    def __enter__(self) -> "GatewayServiceClient":
-        return self
-
-    def __exit__(self, type, value, traceback):
-        """Releases underlying transport's resources.
-
-        .. warning::
-            ONLY use as a context manager if the transport is NOT shared
-            with other clients! Exiting the with block will CLOSE the transport
-            and may cause errors in other clients!
-        """
-        self.transport.close()
-
 
 DEFAULT_CLIENT_INFO = gapic_v1.client_info.ClientInfo(
     gapic_version=package_version.__version__
 )
 
 
-__all__ = ("GatewayServiceClient",)
+__all__ = ("SearchTuningServiceClient",)
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/search_tuning_service/transports/__init__.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/search_tuning_service/transports/__init__.py
new file mode 100644
index 000000000000..8c56b6549cef
--- /dev/null
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/search_tuning_service/transports/__init__.py
@@ -0,0 +1,38 @@
+# -*- coding: utf-8 -*-
+# Copyright 2024 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+from collections import OrderedDict
+from typing import Dict, Type
+
+from .base import SearchTuningServiceTransport
+from .grpc import SearchTuningServiceGrpcTransport
+from .grpc_asyncio import SearchTuningServiceGrpcAsyncIOTransport
+from .rest import SearchTuningServiceRestInterceptor, SearchTuningServiceRestTransport
+
+# Compile a registry of transports.
+_transport_registry = (
+    OrderedDict()
+)  # type: Dict[str, Type[SearchTuningServiceTransport]]
+_transport_registry["grpc"] = SearchTuningServiceGrpcTransport
+_transport_registry["grpc_asyncio"] = SearchTuningServiceGrpcAsyncIOTransport
+_transport_registry["rest"] = SearchTuningServiceRestTransport
+
+__all__ = (
+    "SearchTuningServiceTransport",
+    "SearchTuningServiceGrpcTransport",
+    "SearchTuningServiceGrpcAsyncIOTransport",
+    "SearchTuningServiceRestTransport",
+    "SearchTuningServiceRestInterceptor",
+)
diff --git a/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/services/gateway_service/transports/base.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/search_tuning_service/transports/base.py
similarity index 76%
rename from packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/services/gateway_service/transports/base.py
rename to packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/search_tuning_service/transports/base.py
index 232b9f043b8c..cd575fdaf62d 100644
--- a/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/services/gateway_service/transports/base.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/search_tuning_service/transports/base.py
@@ -16,28 +16,30 @@
 import abc
 from typing import Awaitable, Callable, Dict, Optional, Sequence, Union
 
-from google.api import httpbody_pb2  # type: ignore
 import google.api_core
 from google.api_core import exceptions as core_exceptions
-from google.api_core import gapic_v1
+from google.api_core import gapic_v1, operations_v1
 from google.api_core import retry as retries
 import google.auth  # type: ignore
 from google.auth import credentials as ga_credentials  # type: ignore
+from google.cloud.location import locations_pb2  # type: ignore
+from google.longrunning import operations_pb2  # type: ignore
 from google.oauth2 import service_account  # type: ignore
 
-from google.cloud.gkeconnect.gateway_v1beta1 import gapic_version as package_version
+from google.cloud.discoveryengine_v1 import gapic_version as package_version
+from google.cloud.discoveryengine_v1.types import search_tuning_service
 
 DEFAULT_CLIENT_INFO = gapic_v1.client_info.ClientInfo(
     gapic_version=package_version.__version__
 )
 
 
-class GatewayServiceTransport(abc.ABC):
-    """Abstract transport class for GatewayService."""
+class SearchTuningServiceTransport(abc.ABC):
+    """Abstract transport class for SearchTuningService."""
 
     AUTH_SCOPES = ("https://www.googleapis.com/auth/cloud-platform",)
 
-    DEFAULT_HOST: str = "connectgateway.googleapis.com"
+    DEFAULT_HOST: str = "discoveryengine.googleapis.com"
 
     def __init__(
         self,
@@ -56,7 +58,7 @@ def __init__(
 
         Args:
             host (Optional[str]):
-                 The hostname to connect to (default: 'connectgateway.googleapis.com').
+                 The hostname to connect to (default: 'discoveryengine.googleapis.com').
             credentials (Optional[google.auth.credentials.Credentials]): The
                 authorization credentials to attach to requests. These
                 credentials identify the application to the service; if none
@@ -128,28 +130,13 @@ def host(self):
     def _prep_wrapped_messages(self, client_info):
         # Precompute the wrapped methods.
         self._wrapped_methods = {
-            self.get_resource: gapic_v1.method.wrap_method(
-                self.get_resource,
+            self.train_custom_model: gapic_v1.method.wrap_method(
+                self.train_custom_model,
                 default_timeout=None,
                 client_info=client_info,
             ),
-            self.post_resource: gapic_v1.method.wrap_method(
-                self.post_resource,
-                default_timeout=None,
-                client_info=client_info,
-            ),
-            self.delete_resource: gapic_v1.method.wrap_method(
-                self.delete_resource,
-                default_timeout=None,
-                client_info=client_info,
-            ),
-            self.put_resource: gapic_v1.method.wrap_method(
-                self.put_resource,
-                default_timeout=None,
-                client_info=client_info,
-            ),
-            self.patch_resource: gapic_v1.method.wrap_method(
-                self.patch_resource,
+            self.list_custom_models: gapic_v1.method.wrap_method(
+                self.list_custom_models,
                 default_timeout=None,
                 client_info=client_info,
             ),
@@ -165,48 +152,56 @@ def close(self):
         raise NotImplementedError()
 
     @property
-    def get_resource(
+    def operations_client(self):
+        """Return the client designed to process long-running operations."""
+        raise NotImplementedError()
+
+    @property
+    def train_custom_model(
         self,
     ) -> Callable[
-        [httpbody_pb2.HttpBody],
-        Union[httpbody_pb2.HttpBody, Awaitable[httpbody_pb2.HttpBody]],
+        [search_tuning_service.TrainCustomModelRequest],
+        Union[operations_pb2.Operation, Awaitable[operations_pb2.Operation]],
     ]:
         raise NotImplementedError()
 
     @property
-    def post_resource(
+    def list_custom_models(
         self,
     ) -> Callable[
-        [httpbody_pb2.HttpBody],
-        Union[httpbody_pb2.HttpBody, Awaitable[httpbody_pb2.HttpBody]],
+        [search_tuning_service.ListCustomModelsRequest],
+        Union[
+            search_tuning_service.ListCustomModelsResponse,
+            Awaitable[search_tuning_service.ListCustomModelsResponse],
+        ],
     ]:
         raise NotImplementedError()
 
     @property
-    def delete_resource(
+    def list_operations(
         self,
     ) -> Callable[
-        [httpbody_pb2.HttpBody],
-        Union[httpbody_pb2.HttpBody, Awaitable[httpbody_pb2.HttpBody]],
+        [operations_pb2.ListOperationsRequest],
+        Union[
+            operations_pb2.ListOperationsResponse,
+            Awaitable[operations_pb2.ListOperationsResponse],
+        ],
     ]:
         raise NotImplementedError()
 
     @property
-    def put_resource(
+    def get_operation(
         self,
     ) -> Callable[
-        [httpbody_pb2.HttpBody],
-        Union[httpbody_pb2.HttpBody, Awaitable[httpbody_pb2.HttpBody]],
+        [operations_pb2.GetOperationRequest],
+        Union[operations_pb2.Operation, Awaitable[operations_pb2.Operation]],
     ]:
         raise NotImplementedError()
 
     @property
-    def patch_resource(
+    def cancel_operation(
         self,
-    ) -> Callable[
-        [httpbody_pb2.HttpBody],
-        Union[httpbody_pb2.HttpBody, Awaitable[httpbody_pb2.HttpBody]],
-    ]:
+    ) -> Callable[[operations_pb2.CancelOperationRequest], None,]:
         raise NotImplementedError()
 
     @property
@@ -214,4 +209,4 @@ def kind(self) -> str:
         raise NotImplementedError()
 
 
-__all__ = ("GatewayServiceTransport",)
+__all__ = ("SearchTuningServiceTransport",)
diff --git a/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/services/gateway_service/transports/grpc.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/search_tuning_service/transports/grpc.py
similarity index 71%
rename from packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/services/gateway_service/transports/grpc.py
rename to packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/search_tuning_service/transports/grpc.py
index 69b428b95167..614fb0942cbe 100644
--- a/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/services/gateway_service/transports/grpc.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/search_tuning_service/transports/grpc.py
@@ -16,25 +16,23 @@
 from typing import Callable, Dict, Optional, Sequence, Tuple, Union
 import warnings
 
-from google.api import httpbody_pb2  # type: ignore
-from google.api_core import gapic_v1, grpc_helpers
+from google.api_core import gapic_v1, grpc_helpers, operations_v1
 import google.auth  # type: ignore
 from google.auth import credentials as ga_credentials  # type: ignore
 from google.auth.transport.grpc import SslCredentials  # type: ignore
+from google.cloud.location import locations_pb2  # type: ignore
+from google.longrunning import operations_pb2  # type: ignore
 import grpc  # type: ignore
 
-from .base import DEFAULT_CLIENT_INFO, GatewayServiceTransport
+from google.cloud.discoveryengine_v1.types import search_tuning_service
 
+from .base import DEFAULT_CLIENT_INFO, SearchTuningServiceTransport
 
-class GatewayServiceGrpcTransport(GatewayServiceTransport):
-    """gRPC backend transport for GatewayService.
 
-    Gateway service is a public API which works as a Kubernetes
-    resource model proxy between end users and registered Kubernetes
-    clusters. Each RPC in this service matches with an HTTP verb.
-    End user will initiate kubectl commands against the Gateway
-    service, and Gateway service will forward user requests to
-    clusters.
+class SearchTuningServiceGrpcTransport(SearchTuningServiceTransport):
+    """gRPC backend transport for SearchTuningService.
+
+    Service for search tuning.
 
     This class defines the same methods as the primary client, so the
     primary client can load the underlying transport implementation
@@ -49,7 +47,7 @@ class GatewayServiceGrpcTransport(GatewayServiceTransport):
     def __init__(
         self,
         *,
-        host: str = "connectgateway.googleapis.com",
+        host: str = "discoveryengine.googleapis.com",
         credentials: Optional[ga_credentials.Credentials] = None,
         credentials_file: Optional[str] = None,
         scopes: Optional[Sequence[str]] = None,
@@ -67,7 +65,7 @@ def __init__(
 
         Args:
             host (Optional[str]):
-                 The hostname to connect to (default: 'connectgateway.googleapis.com').
+                 The hostname to connect to (default: 'discoveryengine.googleapis.com').
             credentials (Optional[google.auth.credentials.Credentials]): The
                 authorization credentials to attach to requests. These
                 credentials identify the application to the service; if none
@@ -117,6 +115,7 @@ def __init__(
         self._grpc_channel = None
         self._ssl_channel_credentials = ssl_channel_credentials
         self._stubs: Dict[str, Callable] = {}
+        self._operations_client: Optional[operations_v1.OperationsClient] = None
 
         if api_mtls_endpoint:
             warnings.warn("api_mtls_endpoint is deprecated", DeprecationWarning)
@@ -189,7 +188,7 @@ def __init__(
     @classmethod
     def create_channel(
         cls,
-        host: str = "connectgateway.googleapis.com",
+        host: str = "discoveryengine.googleapis.com",
         credentials: Optional[ga_credentials.Credentials] = None,
         credentials_file: Optional[str] = None,
         scopes: Optional[Sequence[str]] = None,
@@ -239,15 +238,32 @@ def grpc_channel(self) -> grpc.Channel:
         return self._grpc_channel
 
     @property
-    def get_resource(self) -> Callable[[httpbody_pb2.HttpBody], httpbody_pb2.HttpBody]:
-        r"""Return a callable for the get resource method over gRPC.
+    def operations_client(self) -> operations_v1.OperationsClient:
+        """Create the client designed to process long-running operations.
+
+        This property caches on the instance; repeated calls return the same
+        client.
+        """
+        # Quick check: Only create a new client if we do not already have one.
+        if self._operations_client is None:
+            self._operations_client = operations_v1.OperationsClient(self.grpc_channel)
 
-        GetResource performs an HTTP GET request on the
-        Kubernetes API Server.
+        # Return the client from cache.
+        return self._operations_client
+
+    @property
+    def train_custom_model(
+        self,
+    ) -> Callable[
+        [search_tuning_service.TrainCustomModelRequest], operations_pb2.Operation
+    ]:
+        r"""Return a callable for the train custom model method over gRPC.
+
+        Trains a custom model.
 
         Returns:
-            Callable[[~.HttpBody],
-                    ~.HttpBody]:
+            Callable[[~.TrainCustomModelRequest],
+                    ~.Operation]:
                 A function that, when called, will call the underlying RPC
                 on the server.
         """
@@ -255,24 +271,28 @@ def get_resource(self) -> Callable[[httpbody_pb2.HttpBody], httpbody_pb2.HttpBod
         # the request.
         # gRPC handles serialization and deserialization, so we just need
         # to pass in the functions for each.
-        if "get_resource" not in self._stubs:
-            self._stubs["get_resource"] = self.grpc_channel.unary_unary(
-                "/google.cloud.gkeconnect.gateway.v1beta1.GatewayService/GetResource",
-                request_serializer=httpbody_pb2.HttpBody.SerializeToString,
-                response_deserializer=httpbody_pb2.HttpBody.FromString,
+        if "train_custom_model" not in self._stubs:
+            self._stubs["train_custom_model"] = self.grpc_channel.unary_unary(
+                "/google.cloud.discoveryengine.v1.SearchTuningService/TrainCustomModel",
+                request_serializer=search_tuning_service.TrainCustomModelRequest.serialize,
+                response_deserializer=operations_pb2.Operation.FromString,
             )
-        return self._stubs["get_resource"]
+        return self._stubs["train_custom_model"]
 
     @property
-    def post_resource(self) -> Callable[[httpbody_pb2.HttpBody], httpbody_pb2.HttpBody]:
-        r"""Return a callable for the post resource method over gRPC.
+    def list_custom_models(
+        self,
+    ) -> Callable[
+        [search_tuning_service.ListCustomModelsRequest],
+        search_tuning_service.ListCustomModelsResponse,
+    ]:
+        r"""Return a callable for the list custom models method over gRPC.
 
-        PostResource performs an HTTP POST on the Kubernetes
-        API Server.
+        Gets a list of all the custom models.
 
         Returns:
-            Callable[[~.HttpBody],
-                    ~.HttpBody]:
+            Callable[[~.ListCustomModelsRequest],
+                    ~.ListCustomModelsResponse]:
                 A function that, when called, will call the underlying RPC
                 on the server.
         """
@@ -280,99 +300,73 @@ def post_resource(self) -> Callable[[httpbody_pb2.HttpBody], httpbody_pb2.HttpBo
         # the request.
         # gRPC handles serialization and deserialization, so we just need
         # to pass in the functions for each.
-        if "post_resource" not in self._stubs:
-            self._stubs["post_resource"] = self.grpc_channel.unary_unary(
-                "/google.cloud.gkeconnect.gateway.v1beta1.GatewayService/PostResource",
-                request_serializer=httpbody_pb2.HttpBody.SerializeToString,
-                response_deserializer=httpbody_pb2.HttpBody.FromString,
+        if "list_custom_models" not in self._stubs:
+            self._stubs["list_custom_models"] = self.grpc_channel.unary_unary(
+                "/google.cloud.discoveryengine.v1.SearchTuningService/ListCustomModels",
+                request_serializer=search_tuning_service.ListCustomModelsRequest.serialize,
+                response_deserializer=search_tuning_service.ListCustomModelsResponse.deserialize,
             )
-        return self._stubs["post_resource"]
+        return self._stubs["list_custom_models"]
+
+    def close(self):
+        self.grpc_channel.close()
 
     @property
-    def delete_resource(
+    def cancel_operation(
         self,
-    ) -> Callable[[httpbody_pb2.HttpBody], httpbody_pb2.HttpBody]:
-        r"""Return a callable for the delete resource method over gRPC.
-
-        DeleteResource performs an HTTP DELETE on the
-        Kubernetes API Server.
-
-        Returns:
-            Callable[[~.HttpBody],
-                    ~.HttpBody]:
-                A function that, when called, will call the underlying RPC
-                on the server.
-        """
+    ) -> Callable[[operations_pb2.CancelOperationRequest], None]:
+        r"""Return a callable for the cancel_operation method over gRPC."""
         # Generate a "stub function" on-the-fly which will actually make
         # the request.
         # gRPC handles serialization and deserialization, so we just need
         # to pass in the functions for each.
-        if "delete_resource" not in self._stubs:
-            self._stubs["delete_resource"] = self.grpc_channel.unary_unary(
-                "/google.cloud.gkeconnect.gateway.v1beta1.GatewayService/DeleteResource",
-                request_serializer=httpbody_pb2.HttpBody.SerializeToString,
-                response_deserializer=httpbody_pb2.HttpBody.FromString,
+        if "cancel_operation" not in self._stubs:
+            self._stubs["cancel_operation"] = self.grpc_channel.unary_unary(
+                "/google.longrunning.Operations/CancelOperation",
+                request_serializer=operations_pb2.CancelOperationRequest.SerializeToString,
+                response_deserializer=None,
             )
-        return self._stubs["delete_resource"]
+        return self._stubs["cancel_operation"]
 
     @property
-    def put_resource(self) -> Callable[[httpbody_pb2.HttpBody], httpbody_pb2.HttpBody]:
-        r"""Return a callable for the put resource method over gRPC.
-
-        PutResource performs an HTTP PUT on the Kubernetes
-        API Server.
-
-        Returns:
-            Callable[[~.HttpBody],
-                    ~.HttpBody]:
-                A function that, when called, will call the underlying RPC
-                on the server.
-        """
+    def get_operation(
+        self,
+    ) -> Callable[[operations_pb2.GetOperationRequest], operations_pb2.Operation]:
+        r"""Return a callable for the get_operation method over gRPC."""
         # Generate a "stub function" on-the-fly which will actually make
         # the request.
         # gRPC handles serialization and deserialization, so we just need
         # to pass in the functions for each.
-        if "put_resource" not in self._stubs:
-            self._stubs["put_resource"] = self.grpc_channel.unary_unary(
-                "/google.cloud.gkeconnect.gateway.v1beta1.GatewayService/PutResource",
-                request_serializer=httpbody_pb2.HttpBody.SerializeToString,
-                response_deserializer=httpbody_pb2.HttpBody.FromString,
+        if "get_operation" not in self._stubs:
+            self._stubs["get_operation"] = self.grpc_channel.unary_unary(
+                "/google.longrunning.Operations/GetOperation",
+                request_serializer=operations_pb2.GetOperationRequest.SerializeToString,
+                response_deserializer=operations_pb2.Operation.FromString,
             )
-        return self._stubs["put_resource"]
+        return self._stubs["get_operation"]
 
     @property
-    def patch_resource(
+    def list_operations(
         self,
-    ) -> Callable[[httpbody_pb2.HttpBody], httpbody_pb2.HttpBody]:
-        r"""Return a callable for the patch resource method over gRPC.
-
-        PatchResource performs an HTTP PATCH on the
-        Kubernetes API Server.
-
-        Returns:
-            Callable[[~.HttpBody],
-                    ~.HttpBody]:
-                A function that, when called, will call the underlying RPC
-                on the server.
-        """
+    ) -> Callable[
+        [operations_pb2.ListOperationsRequest], operations_pb2.ListOperationsResponse
+    ]:
+        r"""Return a callable for the list_operations method over gRPC."""
         # Generate a "stub function" on-the-fly which will actually make
         # the request.
         # gRPC handles serialization and deserialization, so we just need
         # to pass in the functions for each.
-        if "patch_resource" not in self._stubs:
-            self._stubs["patch_resource"] = self.grpc_channel.unary_unary(
-                "/google.cloud.gkeconnect.gateway.v1beta1.GatewayService/PatchResource",
-                request_serializer=httpbody_pb2.HttpBody.SerializeToString,
-                response_deserializer=httpbody_pb2.HttpBody.FromString,
+        if "list_operations" not in self._stubs:
+            self._stubs["list_operations"] = self.grpc_channel.unary_unary(
+                "/google.longrunning.Operations/ListOperations",
+                request_serializer=operations_pb2.ListOperationsRequest.SerializeToString,
+                response_deserializer=operations_pb2.ListOperationsResponse.FromString,
             )
-        return self._stubs["patch_resource"]
-
-    def close(self):
-        self.grpc_channel.close()
+        return self._stubs["list_operations"]
 
     @property
     def kind(self) -> str:
         return "grpc"
 
 
-__all__ = ("GatewayServiceGrpcTransport",)
+__all__ = ("SearchTuningServiceGrpcTransport",)
diff --git a/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/services/gateway_service/transports/grpc_asyncio.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/search_tuning_service/transports/grpc_asyncio.py
similarity index 68%
rename from packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/services/gateway_service/transports/grpc_asyncio.py
rename to packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/search_tuning_service/transports/grpc_asyncio.py
index b4f9b940f08d..3b4639ec7de9 100644
--- a/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/services/gateway_service/transports/grpc_asyncio.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/search_tuning_service/transports/grpc_asyncio.py
@@ -16,28 +16,26 @@
 from typing import Awaitable, Callable, Dict, Optional, Sequence, Tuple, Union
 import warnings
 
-from google.api import httpbody_pb2  # type: ignore
 from google.api_core import exceptions as core_exceptions
-from google.api_core import gapic_v1, grpc_helpers_async
+from google.api_core import gapic_v1, grpc_helpers_async, operations_v1
 from google.api_core import retry_async as retries
 from google.auth import credentials as ga_credentials  # type: ignore
 from google.auth.transport.grpc import SslCredentials  # type: ignore
+from google.cloud.location import locations_pb2  # type: ignore
+from google.longrunning import operations_pb2  # type: ignore
 import grpc  # type: ignore
 from grpc.experimental import aio  # type: ignore
 
-from .base import DEFAULT_CLIENT_INFO, GatewayServiceTransport
-from .grpc import GatewayServiceGrpcTransport
+from google.cloud.discoveryengine_v1.types import search_tuning_service
 
+from .base import DEFAULT_CLIENT_INFO, SearchTuningServiceTransport
+from .grpc import SearchTuningServiceGrpcTransport
 
-class GatewayServiceGrpcAsyncIOTransport(GatewayServiceTransport):
-    """gRPC AsyncIO backend transport for GatewayService.
 
-    Gateway service is a public API which works as a Kubernetes
-    resource model proxy between end users and registered Kubernetes
-    clusters. Each RPC in this service matches with an HTTP verb.
-    End user will initiate kubectl commands against the Gateway
-    service, and Gateway service will forward user requests to
-    clusters.
+class SearchTuningServiceGrpcAsyncIOTransport(SearchTuningServiceTransport):
+    """gRPC AsyncIO backend transport for SearchTuningService.
+
+    Service for search tuning.
 
     This class defines the same methods as the primary client, so the
     primary client can load the underlying transport implementation
@@ -53,7 +51,7 @@ class GatewayServiceGrpcAsyncIOTransport(GatewayServiceTransport):
     @classmethod
     def create_channel(
         cls,
-        host: str = "connectgateway.googleapis.com",
+        host: str = "discoveryengine.googleapis.com",
         credentials: Optional[ga_credentials.Credentials] = None,
         credentials_file: Optional[str] = None,
         scopes: Optional[Sequence[str]] = None,
@@ -95,7 +93,7 @@ def create_channel(
     def __init__(
         self,
         *,
-        host: str = "connectgateway.googleapis.com",
+        host: str = "discoveryengine.googleapis.com",
         credentials: Optional[ga_credentials.Credentials] = None,
         credentials_file: Optional[str] = None,
         scopes: Optional[Sequence[str]] = None,
@@ -113,7 +111,7 @@ def __init__(
 
         Args:
             host (Optional[str]):
-                 The hostname to connect to (default: 'connectgateway.googleapis.com').
+                 The hostname to connect to (default: 'discoveryengine.googleapis.com').
             credentials (Optional[google.auth.credentials.Credentials]): The
                 authorization credentials to attach to requests. These
                 credentials identify the application to the service; if none
@@ -164,6 +162,7 @@ def __init__(
         self._grpc_channel = None
         self._ssl_channel_credentials = ssl_channel_credentials
         self._stubs: Dict[str, Callable] = {}
+        self._operations_client: Optional[operations_v1.OperationsAsyncClient] = None
 
         if api_mtls_endpoint:
             warnings.warn("api_mtls_endpoint is deprecated", DeprecationWarning)
@@ -243,17 +242,35 @@ def grpc_channel(self) -> aio.Channel:
         return self._grpc_channel
 
     @property
-    def get_resource(
+    def operations_client(self) -> operations_v1.OperationsAsyncClient:
+        """Create the client designed to process long-running operations.
+
+        This property caches on the instance; repeated calls return the same
+        client.
+        """
+        # Quick check: Only create a new client if we do not already have one.
+        if self._operations_client is None:
+            self._operations_client = operations_v1.OperationsAsyncClient(
+                self.grpc_channel
+            )
+
+        # Return the client from cache.
+        return self._operations_client
+
+    @property
+    def train_custom_model(
         self,
-    ) -> Callable[[httpbody_pb2.HttpBody], Awaitable[httpbody_pb2.HttpBody]]:
-        r"""Return a callable for the get resource method over gRPC.
+    ) -> Callable[
+        [search_tuning_service.TrainCustomModelRequest],
+        Awaitable[operations_pb2.Operation],
+    ]:
+        r"""Return a callable for the train custom model method over gRPC.
 
-        GetResource performs an HTTP GET request on the
-        Kubernetes API Server.
+        Trains a custom model.
 
         Returns:
-            Callable[[~.HttpBody],
-                    Awaitable[~.HttpBody]]:
+            Callable[[~.TrainCustomModelRequest],
+                    Awaitable[~.Operation]]:
                 A function that, when called, will call the underlying RPC
                 on the server.
         """
@@ -261,26 +278,28 @@ def get_resource(
         # the request.
         # gRPC handles serialization and deserialization, so we just need
         # to pass in the functions for each.
-        if "get_resource" not in self._stubs:
-            self._stubs["get_resource"] = self.grpc_channel.unary_unary(
-                "/google.cloud.gkeconnect.gateway.v1beta1.GatewayService/GetResource",
-                request_serializer=httpbody_pb2.HttpBody.SerializeToString,
-                response_deserializer=httpbody_pb2.HttpBody.FromString,
+        if "train_custom_model" not in self._stubs:
+            self._stubs["train_custom_model"] = self.grpc_channel.unary_unary(
+                "/google.cloud.discoveryengine.v1.SearchTuningService/TrainCustomModel",
+                request_serializer=search_tuning_service.TrainCustomModelRequest.serialize,
+                response_deserializer=operations_pb2.Operation.FromString,
             )
-        return self._stubs["get_resource"]
+        return self._stubs["train_custom_model"]
 
     @property
-    def post_resource(
+    def list_custom_models(
         self,
-    ) -> Callable[[httpbody_pb2.HttpBody], Awaitable[httpbody_pb2.HttpBody]]:
-        r"""Return a callable for the post resource method over gRPC.
+    ) -> Callable[
+        [search_tuning_service.ListCustomModelsRequest],
+        Awaitable[search_tuning_service.ListCustomModelsResponse],
+    ]:
+        r"""Return a callable for the list custom models method over gRPC.
 
-        PostResource performs an HTTP POST on the Kubernetes
-        API Server.
+        Gets a list of all the custom models.
 
         Returns:
-            Callable[[~.HttpBody],
-                    Awaitable[~.HttpBody]]:
+            Callable[[~.ListCustomModelsRequest],
+                    Awaitable[~.ListCustomModelsResponse]]:
                 A function that, when called, will call the underlying RPC
                 on the server.
         """
@@ -288,127 +307,84 @@ def post_resource(
         # the request.
         # gRPC handles serialization and deserialization, so we just need
         # to pass in the functions for each.
-        if "post_resource" not in self._stubs:
-            self._stubs["post_resource"] = self.grpc_channel.unary_unary(
-                "/google.cloud.gkeconnect.gateway.v1beta1.GatewayService/PostResource",
-                request_serializer=httpbody_pb2.HttpBody.SerializeToString,
-                response_deserializer=httpbody_pb2.HttpBody.FromString,
+        if "list_custom_models" not in self._stubs:
+            self._stubs["list_custom_models"] = self.grpc_channel.unary_unary(
+                "/google.cloud.discoveryengine.v1.SearchTuningService/ListCustomModels",
+                request_serializer=search_tuning_service.ListCustomModelsRequest.serialize,
+                response_deserializer=search_tuning_service.ListCustomModelsResponse.deserialize,
             )
-        return self._stubs["post_resource"]
+        return self._stubs["list_custom_models"]
 
-    @property
-    def delete_resource(
-        self,
-    ) -> Callable[[httpbody_pb2.HttpBody], Awaitable[httpbody_pb2.HttpBody]]:
-        r"""Return a callable for the delete resource method over gRPC.
+    def _prep_wrapped_messages(self, client_info):
+        """Precompute the wrapped methods, overriding the base class method to use async wrappers."""
+        self._wrapped_methods = {
+            self.train_custom_model: gapic_v1.method_async.wrap_method(
+                self.train_custom_model,
+                default_timeout=None,
+                client_info=client_info,
+            ),
+            self.list_custom_models: gapic_v1.method_async.wrap_method(
+                self.list_custom_models,
+                default_timeout=None,
+                client_info=client_info,
+            ),
+        }
 
-        DeleteResource performs an HTTP DELETE on the
-        Kubernetes API Server.
+    def close(self):
+        return self.grpc_channel.close()
 
-        Returns:
-            Callable[[~.HttpBody],
-                    Awaitable[~.HttpBody]]:
-                A function that, when called, will call the underlying RPC
-                on the server.
-        """
+    @property
+    def cancel_operation(
+        self,
+    ) -> Callable[[operations_pb2.CancelOperationRequest], None]:
+        r"""Return a callable for the cancel_operation method over gRPC."""
         # Generate a "stub function" on-the-fly which will actually make
         # the request.
         # gRPC handles serialization and deserialization, so we just need
         # to pass in the functions for each.
-        if "delete_resource" not in self._stubs:
-            self._stubs["delete_resource"] = self.grpc_channel.unary_unary(
-                "/google.cloud.gkeconnect.gateway.v1beta1.GatewayService/DeleteResource",
-                request_serializer=httpbody_pb2.HttpBody.SerializeToString,
-                response_deserializer=httpbody_pb2.HttpBody.FromString,
+        if "cancel_operation" not in self._stubs:
+            self._stubs["cancel_operation"] = self.grpc_channel.unary_unary(
+                "/google.longrunning.Operations/CancelOperation",
+                request_serializer=operations_pb2.CancelOperationRequest.SerializeToString,
+                response_deserializer=None,
             )
-        return self._stubs["delete_resource"]
+        return self._stubs["cancel_operation"]
 
     @property
-    def put_resource(
+    def get_operation(
         self,
-    ) -> Callable[[httpbody_pb2.HttpBody], Awaitable[httpbody_pb2.HttpBody]]:
-        r"""Return a callable for the put resource method over gRPC.
-
-        PutResource performs an HTTP PUT on the Kubernetes
-        API Server.
-
-        Returns:
-            Callable[[~.HttpBody],
-                    Awaitable[~.HttpBody]]:
-                A function that, when called, will call the underlying RPC
-                on the server.
-        """
+    ) -> Callable[[operations_pb2.GetOperationRequest], operations_pb2.Operation]:
+        r"""Return a callable for the get_operation method over gRPC."""
         # Generate a "stub function" on-the-fly which will actually make
         # the request.
         # gRPC handles serialization and deserialization, so we just need
         # to pass in the functions for each.
-        if "put_resource" not in self._stubs:
-            self._stubs["put_resource"] = self.grpc_channel.unary_unary(
-                "/google.cloud.gkeconnect.gateway.v1beta1.GatewayService/PutResource",
-                request_serializer=httpbody_pb2.HttpBody.SerializeToString,
-                response_deserializer=httpbody_pb2.HttpBody.FromString,
+        if "get_operation" not in self._stubs:
+            self._stubs["get_operation"] = self.grpc_channel.unary_unary(
+                "/google.longrunning.Operations/GetOperation",
+                request_serializer=operations_pb2.GetOperationRequest.SerializeToString,
+                response_deserializer=operations_pb2.Operation.FromString,
             )
-        return self._stubs["put_resource"]
+        return self._stubs["get_operation"]
 
     @property
-    def patch_resource(
+    def list_operations(
         self,
-    ) -> Callable[[httpbody_pb2.HttpBody], Awaitable[httpbody_pb2.HttpBody]]:
-        r"""Return a callable for the patch resource method over gRPC.
-
-        PatchResource performs an HTTP PATCH on the
-        Kubernetes API Server.
-
-        Returns:
-            Callable[[~.HttpBody],
-                    Awaitable[~.HttpBody]]:
-                A function that, when called, will call the underlying RPC
-                on the server.
-        """
+    ) -> Callable[
+        [operations_pb2.ListOperationsRequest], operations_pb2.ListOperationsResponse
+    ]:
+        r"""Return a callable for the list_operations method over gRPC."""
         # Generate a "stub function" on-the-fly which will actually make
         # the request.
         # gRPC handles serialization and deserialization, so we just need
         # to pass in the functions for each.
-        if "patch_resource" not in self._stubs:
-            self._stubs["patch_resource"] = self.grpc_channel.unary_unary(
-                "/google.cloud.gkeconnect.gateway.v1beta1.GatewayService/PatchResource",
-                request_serializer=httpbody_pb2.HttpBody.SerializeToString,
-                response_deserializer=httpbody_pb2.HttpBody.FromString,
+        if "list_operations" not in self._stubs:
+            self._stubs["list_operations"] = self.grpc_channel.unary_unary(
+                "/google.longrunning.Operations/ListOperations",
+                request_serializer=operations_pb2.ListOperationsRequest.SerializeToString,
+                response_deserializer=operations_pb2.ListOperationsResponse.FromString,
             )
-        return self._stubs["patch_resource"]
-
-    def _prep_wrapped_messages(self, client_info):
-        """Precompute the wrapped methods, overriding the base class method to use async wrappers."""
-        self._wrapped_methods = {
-            self.get_resource: gapic_v1.method_async.wrap_method(
-                self.get_resource,
-                default_timeout=None,
-                client_info=client_info,
-            ),
-            self.post_resource: gapic_v1.method_async.wrap_method(
-                self.post_resource,
-                default_timeout=None,
-                client_info=client_info,
-            ),
-            self.delete_resource: gapic_v1.method_async.wrap_method(
-                self.delete_resource,
-                default_timeout=None,
-                client_info=client_info,
-            ),
-            self.put_resource: gapic_v1.method_async.wrap_method(
-                self.put_resource,
-                default_timeout=None,
-                client_info=client_info,
-            ),
-            self.patch_resource: gapic_v1.method_async.wrap_method(
-                self.patch_resource,
-                default_timeout=None,
-                client_info=client_info,
-            ),
-        }
-
-    def close(self):
-        return self.grpc_channel.close()
+        return self._stubs["list_operations"]
 
 
-__all__ = ("GatewayServiceGrpcAsyncIOTransport",)
+__all__ = ("SearchTuningServiceGrpcAsyncIOTransport",)
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/search_tuning_service/transports/rest.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/search_tuning_service/transports/rest.py
new file mode 100644
index 000000000000..7418b189ce0d
--- /dev/null
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/search_tuning_service/transports/rest.py
@@ -0,0 +1,1034 @@
+# -*- coding: utf-8 -*-
+# Copyright 2024 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+import dataclasses
+import json  # type: ignore
+import re
+from typing import Any, Callable, Dict, List, Optional, Sequence, Tuple, Union
+import warnings
+
+from google.api_core import (
+    gapic_v1,
+    operations_v1,
+    path_template,
+    rest_helpers,
+    rest_streaming,
+)
+from google.api_core import exceptions as core_exceptions
+from google.api_core import retry as retries
+from google.auth import credentials as ga_credentials  # type: ignore
+from google.auth.transport.grpc import SslCredentials  # type: ignore
+from google.auth.transport.requests import AuthorizedSession  # type: ignore
+from google.cloud.location import locations_pb2  # type: ignore
+from google.protobuf import json_format
+import grpc  # type: ignore
+from requests import __version__ as requests_version
+
+try:
+    OptionalRetry = Union[retries.Retry, gapic_v1.method._MethodDefault, None]
+except AttributeError:  # pragma: NO COVER
+    OptionalRetry = Union[retries.Retry, object, None]  # type: ignore
+
+
+from google.longrunning import operations_pb2  # type: ignore
+
+from google.cloud.discoveryengine_v1.types import search_tuning_service
+
+from .base import DEFAULT_CLIENT_INFO as BASE_DEFAULT_CLIENT_INFO
+from .base import SearchTuningServiceTransport
+
+DEFAULT_CLIENT_INFO = gapic_v1.client_info.ClientInfo(
+    gapic_version=BASE_DEFAULT_CLIENT_INFO.gapic_version,
+    grpc_version=None,
+    rest_version=requests_version,
+)
+
+
+class SearchTuningServiceRestInterceptor:
+    """Interceptor for SearchTuningService.
+
+    Interceptors are used to manipulate requests, request metadata, and responses
+    in arbitrary ways.
+    Example use cases include:
+    * Logging
+    * Verifying requests according to service or custom semantics
+    * Stripping extraneous information from responses
+
+    These use cases and more can be enabled by injecting an
+    instance of a custom subclass when constructing the SearchTuningServiceRestTransport.
+
+    .. code-block:: python
+        class MyCustomSearchTuningServiceInterceptor(SearchTuningServiceRestInterceptor):
+            def pre_list_custom_models(self, request, metadata):
+                logging.log(f"Received request: {request}")
+                return request, metadata
+
+            def post_list_custom_models(self, response):
+                logging.log(f"Received response: {response}")
+                return response
+
+            def pre_train_custom_model(self, request, metadata):
+                logging.log(f"Received request: {request}")
+                return request, metadata
+
+            def post_train_custom_model(self, response):
+                logging.log(f"Received response: {response}")
+                return response
+
+        transport = SearchTuningServiceRestTransport(interceptor=MyCustomSearchTuningServiceInterceptor())
+        client = SearchTuningServiceClient(transport=transport)
+
+
+    """
+
+    def pre_list_custom_models(
+        self,
+        request: search_tuning_service.ListCustomModelsRequest,
+        metadata: Sequence[Tuple[str, str]],
+    ) -> Tuple[
+        search_tuning_service.ListCustomModelsRequest, Sequence[Tuple[str, str]]
+    ]:
+        """Pre-rpc interceptor for list_custom_models
+
+        Override in a subclass to manipulate the request or metadata
+        before they are sent to the SearchTuningService server.
+        """
+        return request, metadata
+
+    def post_list_custom_models(
+        self, response: search_tuning_service.ListCustomModelsResponse
+    ) -> search_tuning_service.ListCustomModelsResponse:
+        """Post-rpc interceptor for list_custom_models
+
+        Override in a subclass to manipulate the response
+        after it is returned by the SearchTuningService server but before
+        it is returned to user code.
+        """
+        return response
+
+    def pre_train_custom_model(
+        self,
+        request: search_tuning_service.TrainCustomModelRequest,
+        metadata: Sequence[Tuple[str, str]],
+    ) -> Tuple[
+        search_tuning_service.TrainCustomModelRequest, Sequence[Tuple[str, str]]
+    ]:
+        """Pre-rpc interceptor for train_custom_model
+
+        Override in a subclass to manipulate the request or metadata
+        before they are sent to the SearchTuningService server.
+        """
+        return request, metadata
+
+    def post_train_custom_model(
+        self, response: operations_pb2.Operation
+    ) -> operations_pb2.Operation:
+        """Post-rpc interceptor for train_custom_model
+
+        Override in a subclass to manipulate the response
+        after it is returned by the SearchTuningService server but before
+        it is returned to user code.
+        """
+        return response
+
+    def pre_cancel_operation(
+        self,
+        request: operations_pb2.CancelOperationRequest,
+        metadata: Sequence[Tuple[str, str]],
+    ) -> Tuple[operations_pb2.CancelOperationRequest, Sequence[Tuple[str, str]]]:
+        """Pre-rpc interceptor for cancel_operation
+
+        Override in a subclass to manipulate the request or metadata
+        before they are sent to the SearchTuningService server.
+        """
+        return request, metadata
+
+    def post_cancel_operation(self, response: None) -> None:
+        """Post-rpc interceptor for cancel_operation
+
+        Override in a subclass to manipulate the response
+        after it is returned by the SearchTuningService server but before
+        it is returned to user code.
+        """
+        return response
+
+    def pre_get_operation(
+        self,
+        request: operations_pb2.GetOperationRequest,
+        metadata: Sequence[Tuple[str, str]],
+    ) -> Tuple[operations_pb2.GetOperationRequest, Sequence[Tuple[str, str]]]:
+        """Pre-rpc interceptor for get_operation
+
+        Override in a subclass to manipulate the request or metadata
+        before they are sent to the SearchTuningService server.
+        """
+        return request, metadata
+
+    def post_get_operation(
+        self, response: operations_pb2.Operation
+    ) -> operations_pb2.Operation:
+        """Post-rpc interceptor for get_operation
+
+        Override in a subclass to manipulate the response
+        after it is returned by the SearchTuningService server but before
+        it is returned to user code.
+        """
+        return response
+
+    def pre_list_operations(
+        self,
+        request: operations_pb2.ListOperationsRequest,
+        metadata: Sequence[Tuple[str, str]],
+    ) -> Tuple[operations_pb2.ListOperationsRequest, Sequence[Tuple[str, str]]]:
+        """Pre-rpc interceptor for list_operations
+
+        Override in a subclass to manipulate the request or metadata
+        before they are sent to the SearchTuningService server.
+        """
+        return request, metadata
+
+    def post_list_operations(
+        self, response: operations_pb2.ListOperationsResponse
+    ) -> operations_pb2.ListOperationsResponse:
+        """Post-rpc interceptor for list_operations
+
+        Override in a subclass to manipulate the response
+        after it is returned by the SearchTuningService server but before
+        it is returned to user code.
+        """
+        return response
+
+
+@dataclasses.dataclass
+class SearchTuningServiceRestStub:
+    _session: AuthorizedSession
+    _host: str
+    _interceptor: SearchTuningServiceRestInterceptor
+
+
+class SearchTuningServiceRestTransport(SearchTuningServiceTransport):
+    """REST backend transport for SearchTuningService.
+
+    Service for search tuning.
+
+    This class defines the same methods as the primary client, so the
+    primary client can load the underlying transport implementation
+    and call it.
+
+    It sends JSON representations of protocol buffers over HTTP/1.1
+
+    """
+
+    def __init__(
+        self,
+        *,
+        host: str = "discoveryengine.googleapis.com",
+        credentials: Optional[ga_credentials.Credentials] = None,
+        credentials_file: Optional[str] = None,
+        scopes: Optional[Sequence[str]] = None,
+        client_cert_source_for_mtls: Optional[Callable[[], Tuple[bytes, bytes]]] = None,
+        quota_project_id: Optional[str] = None,
+        client_info: gapic_v1.client_info.ClientInfo = DEFAULT_CLIENT_INFO,
+        always_use_jwt_access: Optional[bool] = False,
+        url_scheme: str = "https",
+        interceptor: Optional[SearchTuningServiceRestInterceptor] = None,
+        api_audience: Optional[str] = None,
+    ) -> None:
+        """Instantiate the transport.
+
+        Args:
+            host (Optional[str]):
+                 The hostname to connect to (default: 'discoveryengine.googleapis.com').
+            credentials (Optional[google.auth.credentials.Credentials]): The
+                authorization credentials to attach to requests. These
+                credentials identify the application to the service; if none
+                are specified, the client will attempt to ascertain the
+                credentials from the environment.
+
+            credentials_file (Optional[str]): A file with credentials that can
+                be loaded with :func:`google.auth.load_credentials_from_file`.
+                This argument is ignored if ``channel`` is provided.
+            scopes (Optional(Sequence[str])): A list of scopes. This argument is
+                ignored if ``channel`` is provided.
+            client_cert_source_for_mtls (Callable[[], Tuple[bytes, bytes]]): Client
+                certificate to configure mutual TLS HTTP channel. It is ignored
+                if ``channel`` is provided.
+            quota_project_id (Optional[str]): An optional project to use for billing
+                and quota.
+            client_info (google.api_core.gapic_v1.client_info.ClientInfo):
+                The client info used to send a user-agent string along with
+                API requests. If ``None``, then default info will be used.
+                Generally, you only need to set this if you are developing
+                your own client library.
+            always_use_jwt_access (Optional[bool]): Whether self signed JWT should
+                be used for service account credentials.
+            url_scheme: the protocol scheme for the API endpoint.  Normally
+                "https", but for testing or local servers,
+                "http" can be specified.
+        """
+        # Run the base constructor
+        # TODO(yon-mg): resolve other ctor params i.e. scopes, quota, etc.
+        # TODO: When custom host (api_endpoint) is set, `scopes` must *also* be set on the
+        # credentials object
+        maybe_url_match = re.match("^(?P<scheme>http(?:s)?://)?(?P<host>.*)$", host)
+        if maybe_url_match is None:
+            raise ValueError(
+                f"Unexpected hostname structure: {host}"
+            )  # pragma: NO COVER
+
+        url_match_items = maybe_url_match.groupdict()
+
+        host = f"{url_scheme}://{host}" if not url_match_items["scheme"] else host
+
+        super().__init__(
+            host=host,
+            credentials=credentials,
+            client_info=client_info,
+            always_use_jwt_access=always_use_jwt_access,
+            api_audience=api_audience,
+        )
+        self._session = AuthorizedSession(
+            self._credentials, default_host=self.DEFAULT_HOST
+        )
+        self._operations_client: Optional[operations_v1.AbstractOperationsClient] = None
+        if client_cert_source_for_mtls:
+            self._session.configure_mtls_channel(client_cert_source_for_mtls)
+        self._interceptor = interceptor or SearchTuningServiceRestInterceptor()
+        self._prep_wrapped_messages(client_info)
+
+    @property
+    def operations_client(self) -> operations_v1.AbstractOperationsClient:
+        """Create the client designed to process long-running operations.
+
+        This property caches on the instance; repeated calls return the same
+        client.
+        """
+        # Only create a new client if we do not already have one.
+        if self._operations_client is None:
+            http_options: Dict[str, List[Dict[str, str]]] = {
+                "google.longrunning.Operations.CancelOperation": [
+                    {
+                        "method": "post",
+                        "uri": "/v1/{name=projects/*/operations/*}:cancel",
+                        "body": "*",
+                    },
+                    {
+                        "method": "post",
+                        "uri": "/v1/{name=projects/*/locations/*/collections/*/dataStores/*/branches/*/operations/*}:cancel",
+                        "body": "*",
+                    },
+                    {
+                        "method": "post",
+                        "uri": "/v1/{name=projects/*/locations/*/dataStores/*/branches/*/operations/*}:cancel",
+                        "body": "*",
+                    },
+                ],
+                "google.longrunning.Operations.GetOperation": [
+                    {
+                        "method": "get",
+                        "uri": "/v1/{name=projects/*/operations/*}",
+                    },
+                    {
+                        "method": "get",
+                        "uri": "/v1/{name=projects/*/locations/*/collections/*/dataConnector/operations/*}",
+                    },
+                    {
+                        "method": "get",
+                        "uri": "/v1/{name=projects/*/locations/*/collections/*/dataStores/*/branches/*/operations/*}",
+                    },
+                    {
+                        "method": "get",
+                        "uri": "/v1/{name=projects/*/locations/*/collections/*/dataStores/*/models/*/operations/*}",
+                    },
+                    {
+                        "method": "get",
+                        "uri": "/v1/{name=projects/*/locations/*/collections/*/dataStores/*/operations/*}",
+                    },
+                    {
+                        "method": "get",
+                        "uri": "/v1/{name=projects/*/locations/*/collections/*/dataStores/*/schemas/*/operations/*}",
+                    },
+                    {
+                        "method": "get",
+                        "uri": "/v1/{name=projects/*/locations/*/collections/*/dataStores/*/siteSearchEngine/operations/*}",
+                    },
+                    {
+                        "method": "get",
+                        "uri": "/v1/{name=projects/*/locations/*/collections/*/dataStores/*/siteSearchEngine/targetSites/operations/*}",
+                    },
+                    {
+                        "method": "get",
+                        "uri": "/v1/{name=projects/*/locations/*/collections/*/engines/*/operations/*}",
+                    },
+                    {
+                        "method": "get",
+                        "uri": "/v1/{name=projects/*/locations/*/collections/*/operations/*}",
+                    },
+                    {
+                        "method": "get",
+                        "uri": "/v1/{name=projects/*/locations/*/dataStores/*/branches/*/operations/*}",
+                    },
+                    {
+                        "method": "get",
+                        "uri": "/v1/{name=projects/*/locations/*/dataStores/*/models/*/operations/*}",
+                    },
+                    {
+                        "method": "get",
+                        "uri": "/v1/{name=projects/*/locations/*/dataStores/*/operations/*}",
+                    },
+                    {
+                        "method": "get",
+                        "uri": "/v1/{name=projects/*/locations/*/identity_mapping_stores/*/operations/*}",
+                    },
+                    {
+                        "method": "get",
+                        "uri": "/v1/{name=projects/*/locations/*/operations/*}",
+                    },
+                    {
+                        "method": "get",
+                        "uri": "/v1/{name=projects/*/operations/*}",
+                    },
+                ],
+                "google.longrunning.Operations.ListOperations": [
+                    {
+                        "method": "get",
+                        "uri": "/v1/{name=projects/*}/operations",
+                    },
+                    {
+                        "method": "get",
+                        "uri": "/v1/{name=projects/*/locations/*/collections/*/dataConnector}/operations",
+                    },
+                    {
+                        "method": "get",
+                        "uri": "/v1/{name=projects/*/locations/*/collections/*/dataStores/*/branches/*}/operations",
+                    },
+                    {
+                        "method": "get",
+                        "uri": "/v1/{name=projects/*/locations/*/collections/*/dataStores/*/models/*}/operations",
+                    },
+                    {
+                        "method": "get",
+                        "uri": "/v1/{name=projects/*/locations/*/collections/*/dataStores/*/schemas/*}/operations",
+                    },
+                    {
+                        "method": "get",
+                        "uri": "/v1/{name=projects/*/locations/*/collections/*/dataStores/*/siteSearchEngine/targetSites}/operations",
+                    },
+                    {
+                        "method": "get",
+                        "uri": "/v1/{name=projects/*/locations/*/collections/*/dataStores/*/siteSearchEngine}/operations",
+                    },
+                    {
+                        "method": "get",
+                        "uri": "/v1/{name=projects/*/locations/*/collections/*/dataStores/*}/operations",
+                    },
+                    {
+                        "method": "get",
+                        "uri": "/v1/{name=projects/*/locations/*/collections/*/engines/*}/operations",
+                    },
+                    {
+                        "method": "get",
+                        "uri": "/v1/{name=projects/*/locations/*/collections/*}/operations",
+                    },
+                    {
+                        "method": "get",
+                        "uri": "/v1/{name=projects/*/locations/*/dataStores/*/branches/*}/operations",
+                    },
+                    {
+                        "method": "get",
+                        "uri": "/v1/{name=projects/*/locations/*/dataStores/*/models/*}/operations",
+                    },
+                    {
+                        "method": "get",
+                        "uri": "/v1/{name=projects/*/locations/*/dataStores/*}/operations",
+                    },
+                    {
+                        "method": "get",
+                        "uri": "/v1/{name=projects/*/locations/*/identity_mapping_stores/*}/operations",
+                    },
+                    {
+                        "method": "get",
+                        "uri": "/v1/{name=projects/*/locations/*}/operations",
+                    },
+                    {
+                        "method": "get",
+                        "uri": "/v1/{name=projects/*}/operations",
+                    },
+                ],
+            }
+
+            rest_transport = operations_v1.OperationsRestTransport(
+                host=self._host,
+                # use the credentials which are saved
+                credentials=self._credentials,
+                scopes=self._scopes,
+                http_options=http_options,
+                path_prefix="v1",
+            )
+
+            self._operations_client = operations_v1.AbstractOperationsClient(
+                transport=rest_transport
+            )
+
+        # Return the client from cache.
+        return self._operations_client
+
+    class _ListCustomModels(SearchTuningServiceRestStub):
+        def __hash__(self):
+            return hash("ListCustomModels")
+
+        __REQUIRED_FIELDS_DEFAULT_VALUES: Dict[str, Any] = {}
+
+        @classmethod
+        def _get_unset_required_fields(cls, message_dict):
+            return {
+                k: v
+                for k, v in cls.__REQUIRED_FIELDS_DEFAULT_VALUES.items()
+                if k not in message_dict
+            }
+
+        def __call__(
+            self,
+            request: search_tuning_service.ListCustomModelsRequest,
+            *,
+            retry: OptionalRetry = gapic_v1.method.DEFAULT,
+            timeout: Optional[float] = None,
+            metadata: Sequence[Tuple[str, str]] = (),
+        ) -> search_tuning_service.ListCustomModelsResponse:
+            r"""Call the list custom models method over HTTP.
+
+            Args:
+                request (~.search_tuning_service.ListCustomModelsRequest):
+                    The request object. Request message for
+                [SearchTuningService.ListCustomModels][google.cloud.discoveryengine.v1.SearchTuningService.ListCustomModels]
+                method.
+                retry (google.api_core.retry.Retry): Designation of what errors, if any,
+                    should be retried.
+                timeout (float): The timeout for this request.
+                metadata (Sequence[Tuple[str, str]]): Strings which should be
+                    sent along with the request as metadata.
+
+            Returns:
+                ~.search_tuning_service.ListCustomModelsResponse:
+                    Response message for
+                [SearchTuningService.ListCustomModels][google.cloud.discoveryengine.v1.SearchTuningService.ListCustomModels]
+                method.
+
+            """
+
+            http_options: List[Dict[str, str]] = [
+                {
+                    "method": "get",
+                    "uri": "/v1/{data_store=projects/*/locations/*/collections/*/dataStores/*}/customModels",
+                },
+            ]
+            request, metadata = self._interceptor.pre_list_custom_models(
+                request, metadata
+            )
+            pb_request = search_tuning_service.ListCustomModelsRequest.pb(request)
+            transcoded_request = path_template.transcode(http_options, pb_request)
+
+            uri = transcoded_request["uri"]
+            method = transcoded_request["method"]
+
+            # Jsonify the query params
+            query_params = json.loads(
+                json_format.MessageToJson(
+                    transcoded_request["query_params"],
+                    use_integers_for_enums=True,
+                )
+            )
+            query_params.update(self._get_unset_required_fields(query_params))
+
+            query_params["$alt"] = "json;enum-encoding=int"
+
+            # Send the request
+            headers = dict(metadata)
+            headers["Content-Type"] = "application/json"
+            response = getattr(self._session, method)(
+                "{host}{uri}".format(host=self._host, uri=uri),
+                timeout=timeout,
+                headers=headers,
+                params=rest_helpers.flatten_query_params(query_params, strict=True),
+            )
+
+            # In case of error, raise the appropriate core_exceptions.GoogleAPICallError exception
+            # subclass.
+            if response.status_code >= 400:
+                raise core_exceptions.from_http_response(response)
+
+            # Return the response
+            resp = search_tuning_service.ListCustomModelsResponse()
+            pb_resp = search_tuning_service.ListCustomModelsResponse.pb(resp)
+
+            json_format.Parse(response.content, pb_resp, ignore_unknown_fields=True)
+            resp = self._interceptor.post_list_custom_models(resp)
+            return resp
+
+    class _TrainCustomModel(SearchTuningServiceRestStub):
+        def __hash__(self):
+            return hash("TrainCustomModel")
+
+        __REQUIRED_FIELDS_DEFAULT_VALUES: Dict[str, Any] = {}
+
+        @classmethod
+        def _get_unset_required_fields(cls, message_dict):
+            return {
+                k: v
+                for k, v in cls.__REQUIRED_FIELDS_DEFAULT_VALUES.items()
+                if k not in message_dict
+            }
+
+        def __call__(
+            self,
+            request: search_tuning_service.TrainCustomModelRequest,
+            *,
+            retry: OptionalRetry = gapic_v1.method.DEFAULT,
+            timeout: Optional[float] = None,
+            metadata: Sequence[Tuple[str, str]] = (),
+        ) -> operations_pb2.Operation:
+            r"""Call the train custom model method over HTTP.
+
+            Args:
+                request (~.search_tuning_service.TrainCustomModelRequest):
+                    The request object. Request message for
+                [SearchTuningService.TrainCustomModel][google.cloud.discoveryengine.v1.SearchTuningService.TrainCustomModel]
+                method.
+                retry (google.api_core.retry.Retry): Designation of what errors, if any,
+                    should be retried.
+                timeout (float): The timeout for this request.
+                metadata (Sequence[Tuple[str, str]]): Strings which should be
+                    sent along with the request as metadata.
+
+            Returns:
+                ~.operations_pb2.Operation:
+                    This resource represents a
+                long-running operation that is the
+                result of a network API call.
+
+            """
+
+            http_options: List[Dict[str, str]] = [
+                {
+                    "method": "post",
+                    "uri": "/v1/{data_store=projects/*/locations/*/collections/*/dataStores/*}:trainCustomModel",
+                    "body": "*",
+                },
+            ]
+            request, metadata = self._interceptor.pre_train_custom_model(
+                request, metadata
+            )
+            pb_request = search_tuning_service.TrainCustomModelRequest.pb(request)
+            transcoded_request = path_template.transcode(http_options, pb_request)
+
+            # Jsonify the request body
+
+            body = json_format.MessageToJson(
+                transcoded_request["body"], use_integers_for_enums=True
+            )
+            uri = transcoded_request["uri"]
+            method = transcoded_request["method"]
+
+            # Jsonify the query params
+            query_params = json.loads(
+                json_format.MessageToJson(
+                    transcoded_request["query_params"],
+                    use_integers_for_enums=True,
+                )
+            )
+            query_params.update(self._get_unset_required_fields(query_params))
+
+            query_params["$alt"] = "json;enum-encoding=int"
+
+            # Send the request
+            headers = dict(metadata)
+            headers["Content-Type"] = "application/json"
+            response = getattr(self._session, method)(
+                "{host}{uri}".format(host=self._host, uri=uri),
+                timeout=timeout,
+                headers=headers,
+                params=rest_helpers.flatten_query_params(query_params, strict=True),
+                data=body,
+            )
+
+            # In case of error, raise the appropriate core_exceptions.GoogleAPICallError exception
+            # subclass.
+            if response.status_code >= 400:
+                raise core_exceptions.from_http_response(response)
+
+            # Return the response
+            resp = operations_pb2.Operation()
+            json_format.Parse(response.content, resp, ignore_unknown_fields=True)
+            resp = self._interceptor.post_train_custom_model(resp)
+            return resp
+
+    @property
+    def list_custom_models(
+        self,
+    ) -> Callable[
+        [search_tuning_service.ListCustomModelsRequest],
+        search_tuning_service.ListCustomModelsResponse,
+    ]:
+        # The return type is fine, but mypy isn't sophisticated enough to determine what's going on here.
+        # In C++ this would require a dynamic_cast
+        return self._ListCustomModels(self._session, self._host, self._interceptor)  # type: ignore
+
+    @property
+    def train_custom_model(
+        self,
+    ) -> Callable[
+        [search_tuning_service.TrainCustomModelRequest], operations_pb2.Operation
+    ]:
+        # The return type is fine, but mypy isn't sophisticated enough to determine what's going on here.
+        # In C++ this would require a dynamic_cast
+        return self._TrainCustomModel(self._session, self._host, self._interceptor)  # type: ignore
+
+    @property
+    def cancel_operation(self):
+        return self._CancelOperation(self._session, self._host, self._interceptor)  # type: ignore
+
+    class _CancelOperation(SearchTuningServiceRestStub):
+        def __call__(
+            self,
+            request: operations_pb2.CancelOperationRequest,
+            *,
+            retry: OptionalRetry = gapic_v1.method.DEFAULT,
+            timeout: Optional[float] = None,
+            metadata: Sequence[Tuple[str, str]] = (),
+        ) -> None:
+            r"""Call the cancel operation method over HTTP.
+
+            Args:
+                request (operations_pb2.CancelOperationRequest):
+                    The request object for CancelOperation method.
+                retry (google.api_core.retry.Retry): Designation of what errors, if any,
+                    should be retried.
+                timeout (float): The timeout for this request.
+                metadata (Sequence[Tuple[str, str]]): Strings which should be
+                    sent along with the request as metadata.
+            """
+
+            http_options: List[Dict[str, str]] = [
+                {
+                    "method": "post",
+                    "uri": "/v1/{name=projects/*/operations/*}:cancel",
+                    "body": "*",
+                },
+                {
+                    "method": "post",
+                    "uri": "/v1/{name=projects/*/locations/*/collections/*/dataStores/*/branches/*/operations/*}:cancel",
+                    "body": "*",
+                },
+                {
+                    "method": "post",
+                    "uri": "/v1/{name=projects/*/locations/*/dataStores/*/branches/*/operations/*}:cancel",
+                    "body": "*",
+                },
+            ]
+
+            request, metadata = self._interceptor.pre_cancel_operation(
+                request, metadata
+            )
+            request_kwargs = json_format.MessageToDict(request)
+            transcoded_request = path_template.transcode(http_options, **request_kwargs)
+
+            body = json.dumps(transcoded_request["body"])
+            uri = transcoded_request["uri"]
+            method = transcoded_request["method"]
+
+            # Jsonify the query params
+            query_params = json.loads(json.dumps(transcoded_request["query_params"]))
+
+            # Send the request
+            headers = dict(metadata)
+            headers["Content-Type"] = "application/json"
+
+            response = getattr(self._session, method)(
+                "{host}{uri}".format(host=self._host, uri=uri),
+                timeout=timeout,
+                headers=headers,
+                params=rest_helpers.flatten_query_params(query_params),
+                data=body,
+            )
+
+            # In case of error, raise the appropriate core_exceptions.GoogleAPICallError exception
+            # subclass.
+            if response.status_code >= 400:
+                raise core_exceptions.from_http_response(response)
+
+            return self._interceptor.post_cancel_operation(None)
+
+    @property
+    def get_operation(self):
+        return self._GetOperation(self._session, self._host, self._interceptor)  # type: ignore
+
+    class _GetOperation(SearchTuningServiceRestStub):
+        def __call__(
+            self,
+            request: operations_pb2.GetOperationRequest,
+            *,
+            retry: OptionalRetry = gapic_v1.method.DEFAULT,
+            timeout: Optional[float] = None,
+            metadata: Sequence[Tuple[str, str]] = (),
+        ) -> operations_pb2.Operation:
+            r"""Call the get operation method over HTTP.
+
+            Args:
+                request (operations_pb2.GetOperationRequest):
+                    The request object for GetOperation method.
+                retry (google.api_core.retry.Retry): Designation of what errors, if any,
+                    should be retried.
+                timeout (float): The timeout for this request.
+                metadata (Sequence[Tuple[str, str]]): Strings which should be
+                    sent along with the request as metadata.
+
+            Returns:
+                operations_pb2.Operation: Response from GetOperation method.
+            """
+
+            http_options: List[Dict[str, str]] = [
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/operations/*}",
+                },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/collections/*/dataConnector/operations/*}",
+                },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/collections/*/dataStores/*/branches/*/operations/*}",
+                },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/collections/*/dataStores/*/models/*/operations/*}",
+                },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/collections/*/dataStores/*/operations/*}",
+                },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/collections/*/dataStores/*/schemas/*/operations/*}",
+                },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/collections/*/dataStores/*/siteSearchEngine/operations/*}",
+                },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/collections/*/dataStores/*/siteSearchEngine/targetSites/operations/*}",
+                },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/collections/*/engines/*/operations/*}",
+                },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/collections/*/operations/*}",
+                },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/dataStores/*/branches/*/operations/*}",
+                },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/dataStores/*/models/*/operations/*}",
+                },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/dataStores/*/operations/*}",
+                },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/identity_mapping_stores/*/operations/*}",
+                },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/operations/*}",
+                },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/operations/*}",
+                },
+            ]
+
+            request, metadata = self._interceptor.pre_get_operation(request, metadata)
+            request_kwargs = json_format.MessageToDict(request)
+            transcoded_request = path_template.transcode(http_options, **request_kwargs)
+
+            uri = transcoded_request["uri"]
+            method = transcoded_request["method"]
+
+            # Jsonify the query params
+            query_params = json.loads(json.dumps(transcoded_request["query_params"]))
+
+            # Send the request
+            headers = dict(metadata)
+            headers["Content-Type"] = "application/json"
+
+            response = getattr(self._session, method)(
+                "{host}{uri}".format(host=self._host, uri=uri),
+                timeout=timeout,
+                headers=headers,
+                params=rest_helpers.flatten_query_params(query_params),
+            )
+
+            # In case of error, raise the appropriate core_exceptions.GoogleAPICallError exception
+            # subclass.
+            if response.status_code >= 400:
+                raise core_exceptions.from_http_response(response)
+
+            resp = operations_pb2.Operation()
+            resp = json_format.Parse(response.content.decode("utf-8"), resp)
+            resp = self._interceptor.post_get_operation(resp)
+            return resp
+
+    @property
+    def list_operations(self):
+        return self._ListOperations(self._session, self._host, self._interceptor)  # type: ignore
+
+    class _ListOperations(SearchTuningServiceRestStub):
+        def __call__(
+            self,
+            request: operations_pb2.ListOperationsRequest,
+            *,
+            retry: OptionalRetry = gapic_v1.method.DEFAULT,
+            timeout: Optional[float] = None,
+            metadata: Sequence[Tuple[str, str]] = (),
+        ) -> operations_pb2.ListOperationsResponse:
+            r"""Call the list operations method over HTTP.
+
+            Args:
+                request (operations_pb2.ListOperationsRequest):
+                    The request object for ListOperations method.
+                retry (google.api_core.retry.Retry): Designation of what errors, if any,
+                    should be retried.
+                timeout (float): The timeout for this request.
+                metadata (Sequence[Tuple[str, str]]): Strings which should be
+                    sent along with the request as metadata.
+
+            Returns:
+                operations_pb2.ListOperationsResponse: Response from ListOperations method.
+            """
+
+            http_options: List[Dict[str, str]] = [
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*}/operations",
+                },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/collections/*/dataConnector}/operations",
+                },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/collections/*/dataStores/*/branches/*}/operations",
+                },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/collections/*/dataStores/*/models/*}/operations",
+                },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/collections/*/dataStores/*/schemas/*}/operations",
+                },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/collections/*/dataStores/*/siteSearchEngine/targetSites}/operations",
+                },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/collections/*/dataStores/*/siteSearchEngine}/operations",
+                },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/collections/*/dataStores/*}/operations",
+                },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/collections/*/engines/*}/operations",
+                },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/collections/*}/operations",
+                },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/dataStores/*/branches/*}/operations",
+                },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/dataStores/*/models/*}/operations",
+                },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/dataStores/*}/operations",
+                },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/identity_mapping_stores/*}/operations",
+                },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*}/operations",
+                },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*}/operations",
+                },
+            ]
+
+            request, metadata = self._interceptor.pre_list_operations(request, metadata)
+            request_kwargs = json_format.MessageToDict(request)
+            transcoded_request = path_template.transcode(http_options, **request_kwargs)
+
+            uri = transcoded_request["uri"]
+            method = transcoded_request["method"]
+
+            # Jsonify the query params
+            query_params = json.loads(json.dumps(transcoded_request["query_params"]))
+
+            # Send the request
+            headers = dict(metadata)
+            headers["Content-Type"] = "application/json"
+
+            response = getattr(self._session, method)(
+                "{host}{uri}".format(host=self._host, uri=uri),
+                timeout=timeout,
+                headers=headers,
+                params=rest_helpers.flatten_query_params(query_params),
+            )
+
+            # In case of error, raise the appropriate core_exceptions.GoogleAPICallError exception
+            # subclass.
+            if response.status_code >= 400:
+                raise core_exceptions.from_http_response(response)
+
+            resp = operations_pb2.ListOperationsResponse()
+            resp = json_format.Parse(response.content.decode("utf-8"), resp)
+            resp = self._interceptor.post_list_operations(resp)
+            return resp
+
+    @property
+    def kind(self) -> str:
+        return "rest"
+
+    def close(self):
+        self._session.close()
+
+
+__all__ = ("SearchTuningServiceRestTransport",)
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/site_search_engine_service/transports/rest.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/site_search_engine_service/transports/rest.py
index fc45da7663ef..319dd0689231 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/site_search_engine_service/transports/rest.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/site_search_engine_service/transports/rest.py
@@ -727,6 +727,10 @@ def operations_client(self) -> operations_v1.AbstractOperationsClient:
                         "method": "get",
                         "uri": "/v1/{name=projects/*/locations/*/dataStores/*/operations/*}",
                     },
+                    {
+                        "method": "get",
+                        "uri": "/v1/{name=projects/*/locations/*/identity_mapping_stores/*/operations/*}",
+                    },
                     {
                         "method": "get",
                         "uri": "/v1/{name=projects/*/locations/*/operations/*}",
@@ -789,6 +793,10 @@ def operations_client(self) -> operations_v1.AbstractOperationsClient:
                         "method": "get",
                         "uri": "/v1/{name=projects/*/locations/*/dataStores/*}/operations",
                     },
+                    {
+                        "method": "get",
+                        "uri": "/v1/{name=projects/*/locations/*/identity_mapping_stores/*}/operations",
+                    },
                     {
                         "method": "get",
                         "uri": "/v1/{name=projects/*/locations/*}/operations",
@@ -2299,6 +2307,10 @@ def __call__(
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*/dataStores/*/operations/*}",
                 },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/identity_mapping_stores/*/operations/*}",
+                },
                 {
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*/operations/*}",
@@ -2421,6 +2433,10 @@ def __call__(
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*/dataStores/*}/operations",
                 },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/identity_mapping_stores/*}/operations",
+                },
                 {
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*}/operations",
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/user_event_service/async_client.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/user_event_service/async_client.py
index 20dbd3c1b872..320432527156 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/user_event_service/async_client.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/user_event_service/async_client.py
@@ -53,6 +53,7 @@
 from google.cloud.discoveryengine_v1.types import (
     common,
     import_config,
+    purge_config,
     user_event,
     user_event_service,
 )
@@ -497,6 +498,110 @@ async def sample_collect_user_event():
         # Done; return the response.
         return response
 
+    async def purge_user_events(
+        self,
+        request: Optional[Union[purge_config.PurgeUserEventsRequest, dict]] = None,
+        *,
+        retry: OptionalRetry = gapic_v1.method.DEFAULT,
+        timeout: Union[float, object] = gapic_v1.method.DEFAULT,
+        metadata: Sequence[Tuple[str, str]] = (),
+    ) -> operation_async.AsyncOperation:
+        r"""Deletes permanently all user events specified by the
+        filter provided. Depending on the number of events
+        specified by the filter, this operation could take hours
+        or days to complete. To test a filter, use the list
+        command first.
+
+        .. code-block:: python
+
+            # This snippet has been automatically generated and should be regarded as a
+            # code template only.
+            # It will require modifications to work:
+            # - It may require correct/in-range values for request initialization.
+            # - It may require specifying regional endpoints when creating the service
+            #   client as shown in:
+            #   https://googleapis.dev/python/google-api-core/latest/client_options.html
+            from google.cloud import discoveryengine_v1
+
+            async def sample_purge_user_events():
+                # Create a client
+                client = discoveryengine_v1.UserEventServiceAsyncClient()
+
+                # Initialize request argument(s)
+                request = discoveryengine_v1.PurgeUserEventsRequest(
+                    parent="parent_value",
+                    filter="filter_value",
+                )
+
+                # Make the request
+                operation = client.purge_user_events(request=request)
+
+                print("Waiting for operation to complete...")
+
+                response = (await operation).result()
+
+                # Handle the response
+                print(response)
+
+        Args:
+            request (Optional[Union[google.cloud.discoveryengine_v1.types.PurgeUserEventsRequest, dict]]):
+                The request object. Request message for PurgeUserEvents
+                method.
+            retry (google.api_core.retry_async.AsyncRetry): Designation of what errors, if any,
+                should be retried.
+            timeout (float): The timeout for this request.
+            metadata (Sequence[Tuple[str, str]]): Strings which should be
+                sent along with the request as metadata.
+
+        Returns:
+            google.api_core.operation_async.AsyncOperation:
+                An object representing a long-running operation.
+
+                The result type for the operation will be :class:`google.cloud.discoveryengine_v1.types.PurgeUserEventsResponse` Response of the PurgeUserEventsRequest. If the long running operation is
+                   successfully done, then this message is returned by
+                   the google.longrunning.Operations.response field.
+
+        """
+        # Create or coerce a protobuf request object.
+        # - Use the request object if provided (there's no risk of modifying the input as
+        #   there are no flattened fields), or create one.
+        if not isinstance(request, purge_config.PurgeUserEventsRequest):
+            request = purge_config.PurgeUserEventsRequest(request)
+
+        # Wrap the RPC method; this adds retry and timeout information,
+        # and friendly error handling.
+        rpc = self._client._transport._wrapped_methods[
+            self._client._transport.purge_user_events
+        ]
+
+        # Certain fields should be provided within the metadata header;
+        # add these here.
+        metadata = tuple(metadata) + (
+            gapic_v1.routing_header.to_grpc_metadata((("parent", request.parent),)),
+        )
+
+        # Validate the universe domain.
+        self._client._validate_universe_domain()
+
+        # Send the request.
+        response = await rpc(
+            request,
+            retry=retry,
+            timeout=timeout,
+            metadata=metadata,
+        )
+
+        # Wrap the response in an operation future.
+        response = operation_async.from_gapic(
+            response,
+            self._client._transport.operations_client,
+            purge_config.PurgeUserEventsResponse,
+            metadata_type=purge_config.PurgeUserEventsMetadata,
+        )
+
+        # Done; return the response.
+        return response
+
     async def import_user_events(
         self,
         request: Optional[Union[import_config.ImportUserEventsRequest, dict]] = None,
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/user_event_service/client.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/user_event_service/client.py
index e2936a08eb22..c881e7747a63 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/user_event_service/client.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/user_event_service/client.py
@@ -59,6 +59,7 @@
 from google.cloud.discoveryengine_v1.types import (
     common,
     import_config,
+    purge_config,
     user_event,
     user_event_service,
 )
@@ -963,6 +964,108 @@ def sample_collect_user_event():
         # Done; return the response.
         return response
 
+    def purge_user_events(
+        self,
+        request: Optional[Union[purge_config.PurgeUserEventsRequest, dict]] = None,
+        *,
+        retry: OptionalRetry = gapic_v1.method.DEFAULT,
+        timeout: Union[float, object] = gapic_v1.method.DEFAULT,
+        metadata: Sequence[Tuple[str, str]] = (),
+    ) -> operation.Operation:
+        r"""Deletes permanently all user events specified by the
+        filter provided. Depending on the number of events
+        specified by the filter, this operation could take hours
+        or days to complete. To test a filter, use the list
+        command first.
+
+        .. code-block:: python
+
+            # This snippet has been automatically generated and should be regarded as a
+            # code template only.
+            # It will require modifications to work:
+            # - It may require correct/in-range values for request initialization.
+            # - It may require specifying regional endpoints when creating the service
+            #   client as shown in:
+            #   https://googleapis.dev/python/google-api-core/latest/client_options.html
+            from google.cloud import discoveryengine_v1
+
+            def sample_purge_user_events():
+                # Create a client
+                client = discoveryengine_v1.UserEventServiceClient()
+
+                # Initialize request argument(s)
+                request = discoveryengine_v1.PurgeUserEventsRequest(
+                    parent="parent_value",
+                    filter="filter_value",
+                )
+
+                # Make the request
+                operation = client.purge_user_events(request=request)
+
+                print("Waiting for operation to complete...")
+
+                response = operation.result()
+
+                # Handle the response
+                print(response)
+
+        Args:
+            request (Union[google.cloud.discoveryengine_v1.types.PurgeUserEventsRequest, dict]):
+                The request object. Request message for PurgeUserEvents
+                method.
+            retry (google.api_core.retry.Retry): Designation of what errors, if any,
+                should be retried.
+            timeout (float): The timeout for this request.
+            metadata (Sequence[Tuple[str, str]]): Strings which should be
+                sent along with the request as metadata.
+
+        Returns:
+            google.api_core.operation.Operation:
+                An object representing a long-running operation.
+
+                The result type for the operation will be :class:`google.cloud.discoveryengine_v1.types.PurgeUserEventsResponse` Response of the PurgeUserEventsRequest. If the long running operation is
+                   successfully done, then this message is returned by
+                   the google.longrunning.Operations.response field.
+
+        """
+        # Create or coerce a protobuf request object.
+        # - Use the request object if provided (there's no risk of modifying the input as
+        #   there are no flattened fields), or create one.
+        if not isinstance(request, purge_config.PurgeUserEventsRequest):
+            request = purge_config.PurgeUserEventsRequest(request)
+
+        # Wrap the RPC method; this adds retry and timeout information,
+        # and friendly error handling.
+        rpc = self._transport._wrapped_methods[self._transport.purge_user_events]
+
+        # Certain fields should be provided within the metadata header;
+        # add these here.
+        metadata = tuple(metadata) + (
+            gapic_v1.routing_header.to_grpc_metadata((("parent", request.parent),)),
+        )
+
+        # Validate the universe domain.
+        self._validate_universe_domain()
+
+        # Send the request.
+        response = rpc(
+            request,
+            retry=retry,
+            timeout=timeout,
+            metadata=metadata,
+        )
+
+        # Wrap the response in an operation future.
+        response = operation.from_gapic(
+            response,
+            self._transport.operations_client,
+            purge_config.PurgeUserEventsResponse,
+            metadata_type=purge_config.PurgeUserEventsMetadata,
+        )
+
+        # Done; return the response.
+        return response
+
     def import_user_events(
         self,
         request: Optional[Union[import_config.ImportUserEventsRequest, dict]] = None,
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/user_event_service/transports/base.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/user_event_service/transports/base.py
index db533bd228dd..bb46c14805c3 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/user_event_service/transports/base.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/user_event_service/transports/base.py
@@ -30,6 +30,7 @@
 from google.cloud.discoveryengine_v1 import gapic_version as package_version
 from google.cloud.discoveryengine_v1.types import (
     import_config,
+    purge_config,
     user_event,
     user_event_service,
 )
@@ -145,6 +146,11 @@ def _prep_wrapped_messages(self, client_info):
                 default_timeout=None,
                 client_info=client_info,
             ),
+            self.purge_user_events: gapic_v1.method.wrap_method(
+                self.purge_user_events,
+                default_timeout=None,
+                client_info=client_info,
+            ),
             self.import_user_events: gapic_v1.method.wrap_method(
                 self.import_user_events,
                 default_retry=retries.Retry(
@@ -193,6 +199,15 @@ def collect_user_event(
     ]:
         raise NotImplementedError()
 
+    @property
+    def purge_user_events(
+        self,
+    ) -> Callable[
+        [purge_config.PurgeUserEventsRequest],
+        Union[operations_pb2.Operation, Awaitable[operations_pb2.Operation]],
+    ]:
+        raise NotImplementedError()
+
     @property
     def import_user_events(
         self,
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/user_event_service/transports/grpc.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/user_event_service/transports/grpc.py
index 29ea6149acb1..21e5a071cbb7 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/user_event_service/transports/grpc.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/user_event_service/transports/grpc.py
@@ -27,6 +27,7 @@
 
 from google.cloud.discoveryengine_v1.types import (
     import_config,
+    purge_config,
     user_event,
     user_event_service,
 )
@@ -315,6 +316,36 @@ def collect_user_event(
             )
         return self._stubs["collect_user_event"]
 
+    @property
+    def purge_user_events(
+        self,
+    ) -> Callable[[purge_config.PurgeUserEventsRequest], operations_pb2.Operation]:
+        r"""Return a callable for the purge user events method over gRPC.
+
+        Deletes permanently all user events specified by the
+        filter provided. Depending on the number of events
+        specified by the filter, this operation could take hours
+        or days to complete. To test a filter, use the list
+        command first.
+
+        Returns:
+            Callable[[~.PurgeUserEventsRequest],
+                    ~.Operation]:
+                A function that, when called, will call the underlying RPC
+                on the server.
+        """
+        # Generate a "stub function" on-the-fly which will actually make
+        # the request.
+        # gRPC handles serialization and deserialization, so we just need
+        # to pass in the functions for each.
+        if "purge_user_events" not in self._stubs:
+            self._stubs["purge_user_events"] = self.grpc_channel.unary_unary(
+                "/google.cloud.discoveryengine.v1.UserEventService/PurgeUserEvents",
+                request_serializer=purge_config.PurgeUserEventsRequest.serialize,
+                response_deserializer=operations_pb2.Operation.FromString,
+            )
+        return self._stubs["purge_user_events"]
+
     @property
     def import_user_events(
         self,
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/user_event_service/transports/grpc_asyncio.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/user_event_service/transports/grpc_asyncio.py
index 030bc370d024..06c828c190ac 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/user_event_service/transports/grpc_asyncio.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/user_event_service/transports/grpc_asyncio.py
@@ -29,6 +29,7 @@
 
 from google.cloud.discoveryengine_v1.types import (
     import_config,
+    purge_config,
     user_event,
     user_event_service,
 )
@@ -325,6 +326,38 @@ def collect_user_event(
             )
         return self._stubs["collect_user_event"]
 
+    @property
+    def purge_user_events(
+        self,
+    ) -> Callable[
+        [purge_config.PurgeUserEventsRequest], Awaitable[operations_pb2.Operation]
+    ]:
+        r"""Return a callable for the purge user events method over gRPC.
+
+        Deletes permanently all user events specified by the
+        filter provided. Depending on the number of events
+        specified by the filter, this operation could take hours
+        or days to complete. To test a filter, use the list
+        command first.
+
+        Returns:
+            Callable[[~.PurgeUserEventsRequest],
+                    Awaitable[~.Operation]]:
+                A function that, when called, will call the underlying RPC
+                on the server.
+        """
+        # Generate a "stub function" on-the-fly which will actually make
+        # the request.
+        # gRPC handles serialization and deserialization, so we just need
+        # to pass in the functions for each.
+        if "purge_user_events" not in self._stubs:
+            self._stubs["purge_user_events"] = self.grpc_channel.unary_unary(
+                "/google.cloud.discoveryengine.v1.UserEventService/PurgeUserEvents",
+                request_serializer=purge_config.PurgeUserEventsRequest.serialize,
+                response_deserializer=operations_pb2.Operation.FromString,
+            )
+        return self._stubs["purge_user_events"]
+
     @property
     def import_user_events(
         self,
@@ -373,6 +406,11 @@ def _prep_wrapped_messages(self, client_info):
                 default_timeout=None,
                 client_info=client_info,
             ),
+            self.purge_user_events: gapic_v1.method_async.wrap_method(
+                self.purge_user_events,
+                default_timeout=None,
+                client_info=client_info,
+            ),
             self.import_user_events: gapic_v1.method_async.wrap_method(
                 self.import_user_events,
                 default_retry=retries.AsyncRetry(
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/user_event_service/transports/rest.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/user_event_service/transports/rest.py
index 2f87a0777f58..95798800bf12 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/user_event_service/transports/rest.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/services/user_event_service/transports/rest.py
@@ -48,6 +48,7 @@
 
 from google.cloud.discoveryengine_v1.types import (
     import_config,
+    purge_config,
     user_event,
     user_event_service,
 )
@@ -93,6 +94,14 @@ def post_import_user_events(self, response):
                 logging.log(f"Received response: {response}")
                 return response
 
+            def pre_purge_user_events(self, request, metadata):
+                logging.log(f"Received request: {request}")
+                return request, metadata
+
+            def post_purge_user_events(self, response):
+                logging.log(f"Received response: {response}")
+                return response
+
             def pre_write_user_event(self, request, metadata):
                 logging.log(f"Received request: {request}")
                 return request, metadata
@@ -153,6 +162,29 @@ def post_import_user_events(
         """
         return response
 
+    def pre_purge_user_events(
+        self,
+        request: purge_config.PurgeUserEventsRequest,
+        metadata: Sequence[Tuple[str, str]],
+    ) -> Tuple[purge_config.PurgeUserEventsRequest, Sequence[Tuple[str, str]]]:
+        """Pre-rpc interceptor for purge_user_events
+
+        Override in a subclass to manipulate the request or metadata
+        before they are sent to the UserEventService server.
+        """
+        return request, metadata
+
+    def post_purge_user_events(
+        self, response: operations_pb2.Operation
+    ) -> operations_pb2.Operation:
+        """Post-rpc interceptor for purge_user_events
+
+        Override in a subclass to manipulate the response
+        after it is returned by the UserEventService server but before
+        it is returned to user code.
+        """
+        return response
+
     def pre_write_user_event(
         self,
         request: user_event_service.WriteUserEventRequest,
@@ -422,6 +454,10 @@ def operations_client(self) -> operations_v1.AbstractOperationsClient:
                         "method": "get",
                         "uri": "/v1/{name=projects/*/locations/*/dataStores/*/operations/*}",
                     },
+                    {
+                        "method": "get",
+                        "uri": "/v1/{name=projects/*/locations/*/identity_mapping_stores/*/operations/*}",
+                    },
                     {
                         "method": "get",
                         "uri": "/v1/{name=projects/*/locations/*/operations/*}",
@@ -484,6 +520,10 @@ def operations_client(self) -> operations_v1.AbstractOperationsClient:
                         "method": "get",
                         "uri": "/v1/{name=projects/*/locations/*/dataStores/*}/operations",
                     },
+                    {
+                        "method": "get",
+                        "uri": "/v1/{name=projects/*/locations/*/identity_mapping_stores/*}/operations",
+                    },
                     {
                         "method": "get",
                         "uri": "/v1/{name=projects/*/locations/*}/operations",
@@ -759,6 +799,107 @@ def __call__(
             resp = self._interceptor.post_import_user_events(resp)
             return resp
 
+    class _PurgeUserEvents(UserEventServiceRestStub):
+        def __hash__(self):
+            return hash("PurgeUserEvents")
+
+        __REQUIRED_FIELDS_DEFAULT_VALUES: Dict[str, Any] = {}
+
+        @classmethod
+        def _get_unset_required_fields(cls, message_dict):
+            return {
+                k: v
+                for k, v in cls.__REQUIRED_FIELDS_DEFAULT_VALUES.items()
+                if k not in message_dict
+            }
+
+        def __call__(
+            self,
+            request: purge_config.PurgeUserEventsRequest,
+            *,
+            retry: OptionalRetry = gapic_v1.method.DEFAULT,
+            timeout: Optional[float] = None,
+            metadata: Sequence[Tuple[str, str]] = (),
+        ) -> operations_pb2.Operation:
+            r"""Call the purge user events method over HTTP.
+
+            Args:
+                request (~.purge_config.PurgeUserEventsRequest):
+                    The request object. Request message for PurgeUserEvents
+                method.
+                retry (google.api_core.retry.Retry): Designation of what errors, if any,
+                    should be retried.
+                timeout (float): The timeout for this request.
+                metadata (Sequence[Tuple[str, str]]): Strings which should be
+                    sent along with the request as metadata.
+
+            Returns:
+                ~.operations_pb2.Operation:
+                    This resource represents a
+                long-running operation that is the
+                result of a network API call.
+
+            """
+
+            http_options: List[Dict[str, str]] = [
+                {
+                    "method": "post",
+                    "uri": "/v1/{parent=projects/*/locations/*/dataStores/*}/userEvents:purge",
+                    "body": "*",
+                },
+                {
+                    "method": "post",
+                    "uri": "/v1/{parent=projects/*/locations/*/collections/*/dataStores/*}/userEvents:purge",
+                    "body": "*",
+                },
+            ]
+            request, metadata = self._interceptor.pre_purge_user_events(
+                request, metadata
+            )
+            pb_request = purge_config.PurgeUserEventsRequest.pb(request)
+            transcoded_request = path_template.transcode(http_options, pb_request)
+
+            # Jsonify the request body
+
+            body = json_format.MessageToJson(
+                transcoded_request["body"], use_integers_for_enums=True
+            )
+            uri = transcoded_request["uri"]
+            method = transcoded_request["method"]
+
+            # Jsonify the query params
+            query_params = json.loads(
+                json_format.MessageToJson(
+                    transcoded_request["query_params"],
+                    use_integers_for_enums=True,
+                )
+            )
+            query_params.update(self._get_unset_required_fields(query_params))
+
+            query_params["$alt"] = "json;enum-encoding=int"
+
+            # Send the request
+            headers = dict(metadata)
+            headers["Content-Type"] = "application/json"
+            response = getattr(self._session, method)(
+                "{host}{uri}".format(host=self._host, uri=uri),
+                timeout=timeout,
+                headers=headers,
+                params=rest_helpers.flatten_query_params(query_params, strict=True),
+                data=body,
+            )
+
+            # In case of error, raise the appropriate core_exceptions.GoogleAPICallError exception
+            # subclass.
+            if response.status_code >= 400:
+                raise core_exceptions.from_http_response(response)
+
+            # Return the response
+            resp = operations_pb2.Operation()
+            json_format.Parse(response.content, resp, ignore_unknown_fields=True)
+            resp = self._interceptor.post_purge_user_events(resp)
+            return resp
+
     class _WriteUserEvent(UserEventServiceRestStub):
         def __hash__(self):
             return hash("WriteUserEvent")
@@ -884,6 +1025,14 @@ def import_user_events(
         # In C++ this would require a dynamic_cast
         return self._ImportUserEvents(self._session, self._host, self._interceptor)  # type: ignore
 
+    @property
+    def purge_user_events(
+        self,
+    ) -> Callable[[purge_config.PurgeUserEventsRequest], operations_pb2.Operation]:
+        # The return type is fine, but mypy isn't sophisticated enough to determine what's going on here.
+        # In C++ this would require a dynamic_cast
+        return self._PurgeUserEvents(self._session, self._host, self._interceptor)  # type: ignore
+
     @property
     def write_user_event(
         self,
@@ -1048,6 +1197,10 @@ def __call__(
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*/dataStores/*/operations/*}",
                 },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/identity_mapping_stores/*/operations/*}",
+                },
                 {
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*/operations/*}",
@@ -1170,6 +1323,10 @@ def __call__(
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*/dataStores/*}/operations",
                 },
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/identity_mapping_stores/*}/operations",
+                },
                 {
                     "method": "get",
                     "uri": "/v1/{name=projects/*/locations/*}/operations",
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/__init__.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/__init__.py
index 79d6e4f7f3e3..8804192f3d63 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/__init__.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/__init__.py
@@ -62,6 +62,7 @@
     UpdateConversationRequest,
     UpdateSessionRequest,
 )
+from .custom_tuning_model import CustomTuningModel
 from .data_store import DataStore
 from .data_store_service import (
     CreateDataStoreMetadata,
@@ -76,6 +77,8 @@
 from .document import Document
 from .document_processing_config import DocumentProcessingConfig
 from .document_service import (
+    BatchGetDocumentsMetadataRequest,
+    BatchGetDocumentsMetadataResponse,
     CreateDocumentRequest,
     DeleteDocumentRequest,
     GetDocumentRequest,
@@ -133,9 +136,13 @@
     PurgeDocumentsMetadata,
     PurgeDocumentsRequest,
     PurgeDocumentsResponse,
+    PurgeErrorConfig,
     PurgeSuggestionDenyListEntriesMetadata,
     PurgeSuggestionDenyListEntriesRequest,
     PurgeSuggestionDenyListEntriesResponse,
+    PurgeUserEventsMetadata,
+    PurgeUserEventsRequest,
+    PurgeUserEventsResponse,
 )
 from .rank_service import RankingRecord, RankRequest, RankResponse
 from .recommendation_service import RecommendRequest, RecommendResponse
@@ -152,6 +159,13 @@
     UpdateSchemaRequest,
 )
 from .search_service import SearchRequest, SearchResponse
+from .search_tuning_service import (
+    ListCustomModelsRequest,
+    ListCustomModelsResponse,
+    TrainCustomModelMetadata,
+    TrainCustomModelRequest,
+    TrainCustomModelResponse,
+)
 from .session import Query, Session
 from .site_search_engine import SiteSearchEngine, SiteVerificationInfo, TargetSite
 from .site_search_engine_service import (
@@ -240,6 +254,7 @@
     "ListSessionsResponse",
     "UpdateConversationRequest",
     "UpdateSessionRequest",
+    "CustomTuningModel",
     "DataStore",
     "CreateDataStoreMetadata",
     "CreateDataStoreRequest",
@@ -251,6 +266,8 @@
     "UpdateDataStoreRequest",
     "Document",
     "DocumentProcessingConfig",
+    "BatchGetDocumentsMetadataRequest",
+    "BatchGetDocumentsMetadataResponse",
     "CreateDocumentRequest",
     "DeleteDocumentRequest",
     "GetDocumentRequest",
@@ -302,9 +319,13 @@
     "PurgeDocumentsMetadata",
     "PurgeDocumentsRequest",
     "PurgeDocumentsResponse",
+    "PurgeErrorConfig",
     "PurgeSuggestionDenyListEntriesMetadata",
     "PurgeSuggestionDenyListEntriesRequest",
     "PurgeSuggestionDenyListEntriesResponse",
+    "PurgeUserEventsMetadata",
+    "PurgeUserEventsRequest",
+    "PurgeUserEventsResponse",
     "RankingRecord",
     "RankRequest",
     "RankResponse",
@@ -322,6 +343,11 @@
     "UpdateSchemaRequest",
     "SearchRequest",
     "SearchResponse",
+    "ListCustomModelsRequest",
+    "ListCustomModelsResponse",
+    "TrainCustomModelMetadata",
+    "TrainCustomModelRequest",
+    "TrainCustomModelResponse",
     "Query",
     "Session",
     "SiteSearchEngine",
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/answer.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/answer.py
index 8615cafa87d4..290bf922e3c3 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/answer.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/answer.py
@@ -105,6 +105,18 @@ class AnswerSkippedReason(proto.Enum):
 
                 Google skips the answer if there is no relevant
                 content in the retrieved search results.
+            JAIL_BREAKING_QUERY_IGNORED (6):
+                The jail-breaking query ignored case.
+
+                For example, "Reply in the tone of a competing
+                company's CEO". Google skips the answer if the
+                query is classified as a jail-breaking query.
+            CUSTOMER_POLICY_VIOLATION (7):
+                The customer policy violation case.
+
+                Google skips the summary if there is a customer
+                policy violation detected. The policy is defined
+                by the customer.
         """
         ANSWER_SKIPPED_REASON_UNSPECIFIED = 0
         ADVERSARIAL_QUERY_IGNORED = 1
@@ -112,6 +124,8 @@ class AnswerSkippedReason(proto.Enum):
         OUT_OF_DOMAIN_QUERY_IGNORED = 3
         POTENTIAL_POLICY_VIOLATION = 4
         NO_RELEVANT_CONTENT = 5
+        JAIL_BREAKING_QUERY_IGNORED = 6
+        CUSTOMER_POLICY_VIOLATION = 7
 
     class Citation(proto.Message):
         r"""Citation info for a segment.
@@ -171,6 +185,10 @@ class Reference(proto.Message):
             chunk_info (google.cloud.discoveryengine_v1.types.Answer.Reference.ChunkInfo):
                 Chunk information.
 
+                This field is a member of `oneof`_ ``content``.
+            structured_document_info (google.cloud.discoveryengine_v1.types.Answer.Reference.StructuredDocumentInfo):
+                Structured document information.
+
                 This field is a member of `oneof`_ ``content``.
         """
 
@@ -196,11 +214,22 @@ class UnstructuredDocumentInfo(proto.Message):
             class ChunkContent(proto.Message):
                 r"""Chunk content.
 
+                .. _oneof: https://proto-plus-python.readthedocs.io/en/stable/fields.html#oneofs-mutually-exclusive-fields
+
                 Attributes:
                     content (str):
                         Chunk textual content.
                     page_identifier (str):
                         Page identifier.
+                    relevance_score (float):
+                        The relevance of the chunk for a given query.
+                        Values range from 0.0 (completely irrelevant) to
+                        1.0 (completely relevant). This value is for
+                        informational purpose only. It may change for
+                        the same query and chunk at any time due to a
+                        model retraining or change in implementation.
+
+                        This field is a member of `oneof`_ ``_relevance_score``.
                 """
 
                 content: str = proto.Field(
@@ -211,6 +240,11 @@ class ChunkContent(proto.Message):
                     proto.STRING,
                     number=2,
                 )
+                relevance_score: float = proto.Field(
+                    proto.FLOAT,
+                    number=3,
+                    optional=True,
+                )
 
             document: str = proto.Field(
                 proto.STRING,
@@ -248,7 +282,12 @@ class ChunkInfo(proto.Message):
                 content (str):
                     Chunk textual content.
                 relevance_score (float):
-                    Relevance score.
+                    The relevance of the chunk for a given query.
+                    Values range from 0.0 (completely irrelevant) to
+                    1.0 (completely relevant). This value is for
+                    informational purpose only. It may change for
+                    the same query and chunk at any time due to a
+                    model retraining or change in implementation.
 
                     This field is a member of `oneof`_ ``_relevance_score``.
                 document_metadata (google.cloud.discoveryengine_v1.types.Answer.Reference.ChunkInfo.DocumentMetadata):
@@ -316,6 +355,26 @@ class DocumentMetadata(proto.Message):
                 )
             )
 
+        class StructuredDocumentInfo(proto.Message):
+            r"""Structured search information.
+
+            Attributes:
+                document (str):
+                    Document resource name.
+                struct_data (google.protobuf.struct_pb2.Struct):
+                    Structured search data.
+            """
+
+            document: str = proto.Field(
+                proto.STRING,
+                number=1,
+            )
+            struct_data: struct_pb2.Struct = proto.Field(
+                proto.MESSAGE,
+                number=2,
+                message=struct_pb2.Struct,
+            )
+
         unstructured_document_info: "Answer.Reference.UnstructuredDocumentInfo" = (
             proto.Field(
                 proto.MESSAGE,
@@ -330,6 +389,14 @@ class DocumentMetadata(proto.Message):
             oneof="content",
             message="Answer.Reference.ChunkInfo",
         )
+        structured_document_info: "Answer.Reference.StructuredDocumentInfo" = (
+            proto.Field(
+                proto.MESSAGE,
+                number=3,
+                oneof="content",
+                message="Answer.Reference.StructuredDocumentInfo",
+            )
+        )
 
     class Step(proto.Message):
         r"""Step information.
@@ -417,11 +484,10 @@ class SearchResult(proto.Message):
                             If citation_type is CHUNK_LEVEL_CITATION and chunk mode is
                             on, populate chunk info.
                         struct_data (google.protobuf.struct_pb2.Struct):
-                            Data representation. The structured JSON data for the
-                            document. It's populated from the struct data from the
-                            Document (code pointer: http://shortn/_objzAfIiHq), or the
-                            Chunk in search result (code pointer:
-                            http://shortn/_Ipo6KFFGBL).
+                            Data representation.
+                            The structured JSON data for the document.
+                            It's populated from the struct data from the
+                            Document, or the Chunk in search result.
                     """
 
                     class SnippetInfo(proto.Message):
@@ -455,7 +521,12 @@ class ChunkInfo(proto.Message):
                             content (str):
                                 Chunk textual content.
                             relevance_score (float):
-                                Relevance score.
+                                The relevance of the chunk for a given query.
+                                Values range from 0.0 (completely irrelevant) to
+                                1.0 (completely relevant). This value is for
+                                informational purpose only. It may change for
+                                the same query and chunk at any time due to a
+                                model retraining or change in implementation.
 
                                 This field is a member of `oneof`_ ``_relevance_score``.
                         """
@@ -573,10 +644,13 @@ class Type(proto.Enum):
                         Adversarial query classification type.
                     NON_ANSWER_SEEKING_QUERY (2):
                         Non-answer-seeking query classification type.
+                    JAIL_BREAKING_QUERY (3):
+                        Jail-breaking query classification type.
                 """
                 TYPE_UNSPECIFIED = 0
                 ADVERSARIAL_QUERY = 1
                 NON_ANSWER_SEEKING_QUERY = 2
+                JAIL_BREAKING_QUERY = 3
 
             type_: "Answer.QueryUnderstandingInfo.QueryClassificationInfo.Type" = (
                 proto.Field(
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/control.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/control.py
index db871cdc66b1..2e7748c91522 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/control.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/control.py
@@ -111,8 +111,10 @@ class TimeRange(proto.Message):
 
 class Control(proto.Message):
     r"""Defines a conditioned behavior to employ during serving. Must be
-    attached to a [ServingConfig][] to be considered at serving time.
-    Permitted actions dependent on ``SolutionType``.
+    attached to a
+    [ServingConfig][google.cloud.discoveryengine.v1.ServingConfig] to be
+    considered at serving time. Permitted actions dependent on
+    ``SolutionType``.
 
     This message has `oneof`_ fields (mutually exclusive fields).
     For each oneof, at most one member field can be set at the same time.
@@ -150,9 +152,10 @@ class Control(proto.Message):
             128 characters. Otherwise an INVALID ARGUMENT
             error is thrown.
         associated_serving_config_ids (MutableSequence[str]):
-            Output only. List of all [ServingConfig][] ids this control
-            is attached to. May take up to 10 minutes to update after
-            changes.
+            Output only. List of all
+            [ServingConfig][google.cloud.discoveryengine.v1.ServingConfig]
+            IDs this control is attached to. May take up to 10 minutes
+            to update after changes.
         solution_type (google.cloud.discoveryengine_v1.types.SolutionType):
             Required. Immutable. What solution the
             control belongs to.
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/conversational_search_service.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/conversational_search_service.py
index 61b087c0b75e..b979c3de69bf 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/conversational_search_service.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/conversational_search_service.py
@@ -654,14 +654,8 @@ class SearchParams(proto.Message):
                     returned.
                 search_result_mode (google.cloud.discoveryengine_v1.types.SearchRequest.ContentSearchSpec.SearchResultMode):
                     Specifies the search result mode. If unspecified, the search
-                    result mode is based on
-                    [DataStore.DocumentProcessingConfig.chunking_config][]:
-
-                    -  If [DataStore.DocumentProcessingConfig.chunking_config][]
-                       is specified, it defaults to ``CHUNKS``.
-                    -  Otherwise, it defaults to ``DOCUMENTS``. See `parse and
-                       chunk
-                       documents <https://cloud.google.com/generative-ai-app-builder/docs/parse-chunk-documents>`__
+                    result mode defaults to ``DOCUMENTS``. See `parse and chunk
+                    documents <https://cloud.google.com/generative-ai-app-builder/docs/parse-chunk-documents>`__
                 data_store_specs (MutableSequence[google.cloud.discoveryengine_v1.types.SearchRequest.DataStoreSpec]):
                     Specs defining dataStores to filter on in a
                     search call and configurations for those
@@ -924,10 +918,13 @@ class Type(proto.Enum):
                         Adversarial query classification type.
                     NON_ANSWER_SEEKING_QUERY (2):
                         Non-answer-seeking query classification type.
+                    JAIL_BREAKING_QUERY (3):
+                        Jail-breaking query classification type.
                 """
                 TYPE_UNSPECIFIED = 0
                 ADVERSARIAL_QUERY = 1
                 NON_ANSWER_SEEKING_QUERY = 2
+                JAIL_BREAKING_QUERY = 3
 
             types: MutableSequence[
                 "AnswerQueryRequest.QueryUnderstandingSpec.QueryClassificationSpec.Type"
@@ -1031,8 +1028,8 @@ class AnswerQueryResponse(proto.Message):
     Attributes:
         answer (google.cloud.discoveryengine_v1.types.Answer):
             Answer resource object. If
-            [AnswerQueryRequest.StepSpec.max_step_count][] is greater
-            than 1, use
+            [AnswerQueryRequest.QueryUnderstandingSpec.QueryRephraserSpec.max_rephrase_steps][google.cloud.discoveryengine.v1.AnswerQueryRequest.QueryUnderstandingSpec.QueryRephraserSpec.max_rephrase_steps]
+            is greater than 1, use
             [Answer.name][google.cloud.discoveryengine.v1.Answer.name]
             to fetch answer information using
             [ConversationalSearchService.GetAnswer][google.cloud.discoveryengine.v1.ConversationalSearchService.GetAnswer]
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/custom_tuning_model.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/custom_tuning_model.py
new file mode 100644
index 000000000000..6b1a58131a45
--- /dev/null
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/custom_tuning_model.py
@@ -0,0 +1,125 @@
+# -*- coding: utf-8 -*-
+# Copyright 2024 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+from __future__ import annotations
+
+from typing import MutableMapping, MutableSequence
+
+from google.protobuf import timestamp_pb2  # type: ignore
+import proto  # type: ignore
+
+__protobuf__ = proto.module(
+    package="google.cloud.discoveryengine.v1",
+    manifest={
+        "CustomTuningModel",
+    },
+)
+
+
+class CustomTuningModel(proto.Message):
+    r"""Metadata that describes a custom tuned model.
+
+    Attributes:
+        name (str):
+            Required. The fully qualified resource name of the model.
+
+            Format:
+            ``projects/{project}/locations/{location}/collections/{collection}/dataStores/{data_store}/customTuningModels/{custom_tuning_model}``
+            model must be an alpha-numerical string with limit of 40
+            characters.
+        display_name (str):
+            The display name of the model.
+        model_version (int):
+            The version of the model.
+        model_state (google.cloud.discoveryengine_v1.types.CustomTuningModel.ModelState):
+            The state that the model is in (e.g.``TRAINING`` or
+            ``TRAINING_FAILED``).
+        create_time (google.protobuf.timestamp_pb2.Timestamp):
+            Deprecated: timestamp the Model was created
+            at.
+        training_start_time (google.protobuf.timestamp_pb2.Timestamp):
+            Timestamp the model training was initiated.
+        metrics (MutableMapping[str, float]):
+            The metrics of the trained model.
+    """
+
+    class ModelState(proto.Enum):
+        r"""The state of the model.
+
+        Values:
+            MODEL_STATE_UNSPECIFIED (0):
+                Default value.
+            TRAINING_PAUSED (1):
+                The model is in a paused training state.
+            TRAINING (2):
+                The model is currently training.
+            TRAINING_COMPLETE (3):
+                The model has successfully completed
+                training.
+            READY_FOR_SERVING (4):
+                The model is ready for serving.
+            TRAINING_FAILED (5):
+                The model training failed.
+            NO_IMPROVEMENT (6):
+                The model training finished successfully but
+                metrics did not improve.
+            INPUT_VALIDATION_FAILED (7):
+                Input data validation failed. Model training
+                didn't start.
+        """
+        MODEL_STATE_UNSPECIFIED = 0
+        TRAINING_PAUSED = 1
+        TRAINING = 2
+        TRAINING_COMPLETE = 3
+        READY_FOR_SERVING = 4
+        TRAINING_FAILED = 5
+        NO_IMPROVEMENT = 6
+        INPUT_VALIDATION_FAILED = 7
+
+    name: str = proto.Field(
+        proto.STRING,
+        number=1,
+    )
+    display_name: str = proto.Field(
+        proto.STRING,
+        number=2,
+    )
+    model_version: int = proto.Field(
+        proto.INT64,
+        number=3,
+    )
+    model_state: ModelState = proto.Field(
+        proto.ENUM,
+        number=4,
+        enum=ModelState,
+    )
+    create_time: timestamp_pb2.Timestamp = proto.Field(
+        proto.MESSAGE,
+        number=5,
+        message=timestamp_pb2.Timestamp,
+    )
+    training_start_time: timestamp_pb2.Timestamp = proto.Field(
+        proto.MESSAGE,
+        number=6,
+        message=timestamp_pb2.Timestamp,
+    )
+    metrics: MutableMapping[str, float] = proto.MapField(
+        proto.STRING,
+        proto.DOUBLE,
+        number=7,
+    )
+
+
+__all__ = tuple(sorted(__protobuf__.manifest))
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/data_store_service.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/data_store_service.py
index 89f4d5d68ccc..65647f1a300a 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/data_store_service.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/data_store_service.py
@@ -67,6 +67,17 @@ class CreateDataStoreRequest(proto.Message):
             create an advanced data store for site search. If the data
             store is not configured as site search (GENERIC vertical and
             PUBLIC_WEBSITE content_config), this flag will be ignored.
+        skip_default_schema_creation (bool):
+            A boolean flag indicating whether to skip the default schema
+            creation for the data store. Only enable this flag if you
+            are certain that the default schema is incompatible with
+            your use case.
+
+            If set to true, you must manually create a schema for the
+            data store before any documents can be ingested.
+
+            This flag cannot be specified if
+            ``data_store.starting_schema`` is specified.
     """
 
     parent: str = proto.Field(
@@ -86,6 +97,10 @@ class CreateDataStoreRequest(proto.Message):
         proto.BOOL,
         number=4,
     )
+    skip_default_schema_creation: bool = proto.Field(
+        proto.BOOL,
+        number=7,
+    )
 
 
 class GetDataStoreRequest(proto.Message):
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/document.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/document.py
index 0d4d2ad7fa5b..b613e83e20a2 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/document.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/document.py
@@ -19,6 +19,7 @@
 
 from google.protobuf import struct_pb2  # type: ignore
 from google.protobuf import timestamp_pb2  # type: ignore
+from google.rpc import status_pb2  # type: ignore
 import proto  # type: ignore
 
 __protobuf__ = proto.module(
@@ -91,6 +92,14 @@ class Document(proto.Message):
 
             This field is OUTPUT_ONLY. If this field is not populated,
             it means the document has never been indexed.
+        index_status (google.cloud.discoveryengine_v1.types.Document.IndexStatus):
+            Output only. The index status of the document.
+
+            -  If document is indexed successfully, the index_time field
+               is populated.
+            -  Otherwise, if document is not indexed due to errors, the
+               error_samples field is populated.
+            -  Otherwise, index_status is unset.
     """
 
     class Content(proto.Message):
@@ -154,6 +163,31 @@ class Content(proto.Message):
             number=1,
         )
 
+    class IndexStatus(proto.Message):
+        r"""Index status of the document.
+
+        Attributes:
+            index_time (google.protobuf.timestamp_pb2.Timestamp):
+                The time when the document was indexed.
+                If this field is populated, it means the
+                document has been indexed.
+            error_samples (MutableSequence[google.rpc.status_pb2.Status]):
+                A sample of errors encountered while indexing
+                the document. If this field is populated, the
+                document is not indexed due to errors.
+        """
+
+        index_time: timestamp_pb2.Timestamp = proto.Field(
+            proto.MESSAGE,
+            number=1,
+            message=timestamp_pb2.Timestamp,
+        )
+        error_samples: MutableSequence[status_pb2.Status] = proto.RepeatedField(
+            proto.MESSAGE,
+            number=2,
+            message=status_pb2.Status,
+        )
+
     struct_data: struct_pb2.Struct = proto.Field(
         proto.MESSAGE,
         number=4,
@@ -196,6 +230,11 @@ class Content(proto.Message):
         number=13,
         message=timestamp_pb2.Timestamp,
     )
+    index_status: IndexStatus = proto.Field(
+        proto.MESSAGE,
+        number=15,
+        message=IndexStatus,
+    )
 
 
 __all__ = tuple(sorted(__protobuf__.manifest))
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/document_processing_config.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/document_processing_config.py
index 99d5a7597569..7f19cb717e94 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/document_processing_config.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/document_processing_config.py
@@ -61,6 +61,8 @@ class DocumentProcessingConfig(proto.Message):
                digital parsing and layout parsing are supported.
             -  ``pptx``: Override parsing config for PPTX files, only
                digital parsing and layout parsing are supported.
+            -  ``xlsx``: Override parsing config for XLSX files, only
+               digital parsing and layout parsing are supported.
     """
 
     class ChunkingConfig(proto.Message):
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/document_service.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/document_service.py
index 7e8d2b5f8263..39388da42c72 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/document_service.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/document_service.py
@@ -18,6 +18,7 @@
 from typing import MutableMapping, MutableSequence
 
 from google.protobuf import field_mask_pb2  # type: ignore
+from google.protobuf import timestamp_pb2  # type: ignore
 import proto  # type: ignore
 
 from google.cloud.discoveryengine_v1.types import document as gcd_document
@@ -31,6 +32,8 @@
         "CreateDocumentRequest",
         "UpdateDocumentRequest",
         "DeleteDocumentRequest",
+        "BatchGetDocumentsMetadataRequest",
+        "BatchGetDocumentsMetadataResponse",
     },
 )
 
@@ -268,4 +271,173 @@ class DeleteDocumentRequest(proto.Message):
     )
 
 
+class BatchGetDocumentsMetadataRequest(proto.Message):
+    r"""Request message for
+    [DocumentService.BatchGetDocumentsMetadata][google.cloud.discoveryengine.v1.DocumentService.BatchGetDocumentsMetadata]
+    method.
+
+    Attributes:
+        parent (str):
+            Required. The parent branch resource name, such as
+            ``projects/{project}/locations/{location}/collections/{collection}/dataStores/{data_store}/branches/{branch}``.
+        matcher (google.cloud.discoveryengine_v1.types.BatchGetDocumentsMetadataRequest.Matcher):
+            Required. Matcher for the
+            [Document][google.cloud.discoveryengine.v1.Document]s.
+    """
+
+    class UrisMatcher(proto.Message):
+        r"""Matcher for the
+        [Document][google.cloud.discoveryengine.v1.Document]s by exact uris.
+
+        Attributes:
+            uris (MutableSequence[str]):
+                The exact URIs to match by.
+        """
+
+        uris: MutableSequence[str] = proto.RepeatedField(
+            proto.STRING,
+            number=1,
+        )
+
+    class Matcher(proto.Message):
+        r"""Matcher for the
+        [Document][google.cloud.discoveryengine.v1.Document]s. Currently
+        supports matching by exact URIs.
+
+
+        .. _oneof: https://proto-plus-python.readthedocs.io/en/stable/fields.html#oneofs-mutually-exclusive-fields
+
+        Attributes:
+            uris_matcher (google.cloud.discoveryengine_v1.types.BatchGetDocumentsMetadataRequest.UrisMatcher):
+                Matcher by exact URIs.
+
+                This field is a member of `oneof`_ ``matcher``.
+        """
+
+        uris_matcher: "BatchGetDocumentsMetadataRequest.UrisMatcher" = proto.Field(
+            proto.MESSAGE,
+            number=1,
+            oneof="matcher",
+            message="BatchGetDocumentsMetadataRequest.UrisMatcher",
+        )
+
+    parent: str = proto.Field(
+        proto.STRING,
+        number=1,
+    )
+    matcher: Matcher = proto.Field(
+        proto.MESSAGE,
+        number=2,
+        message=Matcher,
+    )
+
+
+class BatchGetDocumentsMetadataResponse(proto.Message):
+    r"""Response message for
+    [DocumentService.BatchGetDocumentsMetadata][google.cloud.discoveryengine.v1.DocumentService.BatchGetDocumentsMetadata]
+    method.
+
+    Attributes:
+        documents_metadata (MutableSequence[google.cloud.discoveryengine_v1.types.BatchGetDocumentsMetadataResponse.DocumentMetadata]):
+            The metadata of the
+            [Document][google.cloud.discoveryengine.v1.Document]s.
+    """
+
+    class State(proto.Enum):
+        r"""The state of the
+        [Document][google.cloud.discoveryengine.v1.Document].
+
+        Values:
+            STATE_UNSPECIFIED (0):
+                Should never be set.
+            INDEXED (1):
+                The [Document][google.cloud.discoveryengine.v1.Document] is
+                indexed.
+            NOT_IN_TARGET_SITE (2):
+                The [Document][google.cloud.discoveryengine.v1.Document] is
+                not indexed because its URI is not in the
+                [TargetSite][google.cloud.discoveryengine.v1.TargetSite].
+            NOT_IN_INDEX (3):
+                The [Document][google.cloud.discoveryengine.v1.Document] is
+                not indexed.
+        """
+        STATE_UNSPECIFIED = 0
+        INDEXED = 1
+        NOT_IN_TARGET_SITE = 2
+        NOT_IN_INDEX = 3
+
+    class DocumentMetadata(proto.Message):
+        r"""The metadata of a
+        [Document][google.cloud.discoveryengine.v1.Document].
+
+        Attributes:
+            matcher_value (google.cloud.discoveryengine_v1.types.BatchGetDocumentsMetadataResponse.DocumentMetadata.MatcherValue):
+                The value of the matcher that was used to match the
+                [Document][google.cloud.discoveryengine.v1.Document].
+            state (google.cloud.discoveryengine_v1.types.BatchGetDocumentsMetadataResponse.State):
+                The state of the document.
+            last_refreshed_time (google.protobuf.timestamp_pb2.Timestamp):
+                The timestamp of the last time the
+                [Document][google.cloud.discoveryengine.v1.Document] was
+                last indexed.
+            data_ingestion_source (str):
+                The data ingestion source of the
+                [Document][google.cloud.discoveryengine.v1.Document].
+
+                Allowed values are:
+
+                -  ``batch``: Data ingested via Batch API, e.g.,
+                   ImportDocuments.
+                -  ``streaming`` Data ingested via Streaming API, e.g., FHIR
+                   streaming.
+        """
+
+        class MatcherValue(proto.Message):
+            r"""The value of the matcher that was used to match the
+            [Document][google.cloud.discoveryengine.v1.Document].
+
+
+            .. _oneof: https://proto-plus-python.readthedocs.io/en/stable/fields.html#oneofs-mutually-exclusive-fields
+
+            Attributes:
+                uri (str):
+                    If match by URI, the URI of the
+                    [Document][google.cloud.discoveryengine.v1.Document].
+
+                    This field is a member of `oneof`_ ``matcher_value``.
+            """
+
+            uri: str = proto.Field(
+                proto.STRING,
+                number=1,
+                oneof="matcher_value",
+            )
+
+        matcher_value: "BatchGetDocumentsMetadataResponse.DocumentMetadata.MatcherValue" = proto.Field(
+            proto.MESSAGE,
+            number=2,
+            message="BatchGetDocumentsMetadataResponse.DocumentMetadata.MatcherValue",
+        )
+        state: "BatchGetDocumentsMetadataResponse.State" = proto.Field(
+            proto.ENUM,
+            number=3,
+            enum="BatchGetDocumentsMetadataResponse.State",
+        )
+        last_refreshed_time: timestamp_pb2.Timestamp = proto.Field(
+            proto.MESSAGE,
+            number=4,
+            message=timestamp_pb2.Timestamp,
+        )
+        data_ingestion_source: str = proto.Field(
+            proto.STRING,
+            number=5,
+        )
+
+    documents_metadata: MutableSequence[DocumentMetadata] = proto.RepeatedField(
+        proto.MESSAGE,
+        number=1,
+        message=DocumentMetadata,
+    )
+
+
 __all__ = tuple(sorted(__protobuf__.manifest))
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/grounded_generation_service.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/grounded_generation_service.py
index 36de20d74df6..009d4e1badfd 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/grounded_generation_service.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/grounded_generation_service.py
@@ -180,8 +180,9 @@ class Claim(proto.Message):
                 false. In that case, no grounding check was done for the
                 claim and therefore
                 [citation_indices][google.cloud.discoveryengine.v1.CheckGroundingResponse.Claim.citation_indices],
+                [anti_citation_indices][google.cloud.discoveryengine.v1.CheckGroundingResponse.Claim.anti_citation_indices],
                 and
-                [anti_citation_indices][google.cloud.discoveryengine.v1.CheckGroundingResponse.Claim.anti_citation_indices]
+                [score][google.cloud.discoveryengine.v1.CheckGroundingResponse.Claim.score]
                 should not be returned.
 
                 This field is a member of `oneof`_ ``_grounding_check_required``.
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/import_config.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/import_config.py
index bade57407d0a..7c238cb1b194 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/import_config.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/import_config.py
@@ -121,10 +121,10 @@ class BigQuerySource(proto.Message):
 
             This field is a member of `oneof`_ ``partition``.
         project_id (str):
-            The project ID (can be project # or ID) that
-            the BigQuery source is in with a length limit of
-            128 characters. If not specified, inherits the
-            project ID from the parent request.
+            The project ID or the project number that
+            contains the BigQuery source. Has a length limit
+            of 128 characters. If not specified, inherits
+            the project ID from the parent request.
         dataset_id (str):
             Required. The BigQuery data set to copy the
             data from with a length limit of 1,024
@@ -197,9 +197,9 @@ class SpannerSource(proto.Message):
 
     Attributes:
         project_id (str):
-            The project ID that the Spanner source is in
-            with a length limit of 128 characters. If not
-            specified, inherits the project ID from the
+            The project ID that contains the Spanner
+            source. Has a length limit of 128 characters. If
+            not specified, inherits the project ID from the
             parent request.
         instance_id (str):
             Required. The instance ID of the source
@@ -420,9 +420,9 @@ class BigtableSource(proto.Message):
 
     Attributes:
         project_id (str):
-            The project ID that the Bigtable source is in
-            with a length limit of 128 characters. If not
-            specified, inherits the project ID from the
+            The project ID that contains the Bigtable
+            source. Has a length limit of 128 characters. If
+            not specified, inherits the project ID from the
             parent request.
         instance_id (str):
             Required. The instance ID of the Cloud
@@ -470,6 +470,11 @@ class FhirStoreSource(proto.Message):
             characters. Can be specified if one wants to
             have the FhirStore export to a specific Cloud
             Storage directory.
+        resource_types (MutableSequence[str]):
+            The FHIR resource types to import. The resource types should
+            be a subset of all `supported FHIR resource
+            types <https://cloud.google.com/generative-ai-app-builder/docs/fhir-schema-reference#resource-level-specification>`__.
+            Default to all supported FHIR resource types if empty.
     """
 
     fhir_store: str = proto.Field(
@@ -480,6 +485,10 @@ class FhirStoreSource(proto.Message):
         proto.STRING,
         number=2,
     )
+    resource_types: MutableSequence[str] = proto.RepeatedField(
+        proto.STRING,
+        number=3,
+    )
 
 
 class CloudSqlSource(proto.Message):
@@ -487,9 +496,9 @@ class CloudSqlSource(proto.Message):
 
     Attributes:
         project_id (str):
-            The project ID that the Cloud SQL source is
-            in with a length limit of 128 characters. If not
-            specified, inherits the project ID from the
+            The project ID that contains the Cloud SQL
+            source. Has a length limit of 128 characters. If
+            not specified, inherits the project ID from the
             parent request.
         instance_id (str):
             Required. The Cloud SQL instance to copy the
@@ -547,9 +556,9 @@ class AlloyDbSource(proto.Message):
 
     Attributes:
         project_id (str):
-            The project ID that the AlloyDB source is in
-            with a length limit of 128 characters. If not
-            specified, inherits the project ID from the
+            The project ID that contains the AlloyDB
+            source. Has a length limit of 128 characters. If
+            not specified, inherits the project ID from the
             parent request.
         location_id (str):
             Required. The AlloyDB location to copy the
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/purge_config.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/purge_config.py
index 6a4b091e5ba5..6633bc93f7a8 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/purge_config.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/purge_config.py
@@ -21,9 +21,15 @@
 from google.rpc import status_pb2  # type: ignore
 import proto  # type: ignore
 
+from google.cloud.discoveryengine_v1.types import import_config
+
 __protobuf__ = proto.module(
     package="google.cloud.discoveryengine.v1",
     manifest={
+        "PurgeUserEventsRequest",
+        "PurgeUserEventsResponse",
+        "PurgeUserEventsMetadata",
+        "PurgeErrorConfig",
         "PurgeDocumentsRequest",
         "PurgeDocumentsResponse",
         "PurgeDocumentsMetadata",
@@ -37,24 +43,211 @@
 )
 
 
+class PurgeUserEventsRequest(proto.Message):
+    r"""Request message for PurgeUserEvents method.
+
+    Attributes:
+        parent (str):
+            Required. The resource name of the catalog under which the
+            events are created. The format is
+            ``projects/{project}/locations/global/collections/{collection}/dataStores/{dataStore}``
+        filter (str):
+            Required. The filter string to specify the events to be
+            deleted with a length limit of 5,000 characters. The
+            eligible fields for filtering are:
+
+            -  ``eventType``: Double quoted
+               [UserEvent.event_type][google.cloud.discoveryengine.v1.UserEvent.event_type]
+               string.
+            -  ``eventTime``: in ISO 8601 "zulu" format.
+            -  ``userPseudoId``: Double quoted string. Specifying this
+               will delete all events associated with a visitor.
+            -  ``userId``: Double quoted string. Specifying this will
+               delete all events associated with a user.
+
+            Examples:
+
+            -  Deleting all events in a time range:
+               ``eventTime > "2012-04-23T18:25:43.511Z" eventTime < "2012-04-23T18:30:43.511Z"``
+            -  Deleting specific eventType: ``eventType = "search"``
+            -  Deleting all events for a specific visitor:
+               ``userPseudoId = "visitor1024"``
+            -  Deleting all events inside a DataStore: ``*``
+
+            The filtering fields are assumed to have an implicit AND.
+        force (bool):
+            The ``force`` field is currently not supported. Purge user
+            event requests will permanently delete all purgeable events.
+            Once the development is complete: If ``force`` is set to
+            false, the method will return the expected purge count
+            without deleting any user events. This field will default to
+            false if not included in the request.
+    """
+
+    parent: str = proto.Field(
+        proto.STRING,
+        number=1,
+    )
+    filter: str = proto.Field(
+        proto.STRING,
+        number=2,
+    )
+    force: bool = proto.Field(
+        proto.BOOL,
+        number=3,
+    )
+
+
+class PurgeUserEventsResponse(proto.Message):
+    r"""Response of the PurgeUserEventsRequest. If the long running
+    operation is successfully done, then this message is returned by
+    the google.longrunning.Operations.response field.
+
+    Attributes:
+        purge_count (int):
+            The total count of events purged as a result
+            of the operation.
+    """
+
+    purge_count: int = proto.Field(
+        proto.INT64,
+        number=1,
+    )
+
+
+class PurgeUserEventsMetadata(proto.Message):
+    r"""Metadata related to the progress of the PurgeUserEvents
+    operation. This will be returned by the
+    google.longrunning.Operation.metadata field.
+
+    Attributes:
+        create_time (google.protobuf.timestamp_pb2.Timestamp):
+            Operation create time.
+        update_time (google.protobuf.timestamp_pb2.Timestamp):
+            Operation last update time. If the operation
+            is done, this is also the finish time.
+        success_count (int):
+            Count of entries that were deleted
+            successfully.
+        failure_count (int):
+            Count of entries that encountered errors
+            while processing.
+    """
+
+    create_time: timestamp_pb2.Timestamp = proto.Field(
+        proto.MESSAGE,
+        number=1,
+        message=timestamp_pb2.Timestamp,
+    )
+    update_time: timestamp_pb2.Timestamp = proto.Field(
+        proto.MESSAGE,
+        number=2,
+        message=timestamp_pb2.Timestamp,
+    )
+    success_count: int = proto.Field(
+        proto.INT64,
+        number=3,
+    )
+    failure_count: int = proto.Field(
+        proto.INT64,
+        number=4,
+    )
+
+
+class PurgeErrorConfig(proto.Message):
+    r"""Configuration of destination for Purge related errors.
+
+    .. _oneof: https://proto-plus-python.readthedocs.io/en/stable/fields.html#oneofs-mutually-exclusive-fields
+
+    Attributes:
+        gcs_prefix (str):
+            Cloud Storage prefix for purge errors. This must be an
+            empty, existing Cloud Storage directory. Purge errors are
+            written to sharded files in this directory, one per line, as
+            a JSON-encoded ``google.rpc.Status`` message.
+
+            This field is a member of `oneof`_ ``destination``.
+    """
+
+    gcs_prefix: str = proto.Field(
+        proto.STRING,
+        number=1,
+        oneof="destination",
+    )
+
+
 class PurgeDocumentsRequest(proto.Message):
     r"""Request message for
     [DocumentService.PurgeDocuments][google.cloud.discoveryengine.v1.DocumentService.PurgeDocuments]
     method.
 
+    This message has `oneof`_ fields (mutually exclusive fields).
+    For each oneof, at most one member field can be set at the same time.
+    Setting any member of the oneof automatically clears all other
+    members.
+
+    .. _oneof: https://proto-plus-python.readthedocs.io/en/stable/fields.html#oneofs-mutually-exclusive-fields
+
     Attributes:
+        gcs_source (google.cloud.discoveryengine_v1.types.GcsSource):
+            Cloud Storage location for the input content. Supported
+            ``data_schema``:
+
+            -  ``document_id``: One valid
+               [Document.id][google.cloud.discoveryengine.v1.Document.id]
+               per line.
+
+            This field is a member of `oneof`_ ``source``.
+        inline_source (google.cloud.discoveryengine_v1.types.PurgeDocumentsRequest.InlineSource):
+            Inline source for the input content for
+            purge.
+
+            This field is a member of `oneof`_ ``source``.
         parent (str):
             Required. The parent resource name, such as
             ``projects/{project}/locations/{location}/collections/{collection}/dataStores/{data_store}/branches/{branch}``.
         filter (str):
             Required. Filter matching documents to purge. Only currently
             supported value is ``*`` (all items).
+        error_config (google.cloud.discoveryengine_v1.types.PurgeErrorConfig):
+            The desired location of errors incurred
+            during the purge.
         force (bool):
             Actually performs the purge. If ``force`` is set to false,
             return the expected purge count without deleting any
             documents.
     """
 
+    class InlineSource(proto.Message):
+        r"""The inline source for the input config for
+        [DocumentService.PurgeDocuments][google.cloud.discoveryengine.v1.DocumentService.PurgeDocuments]
+        method.
+
+        Attributes:
+            documents (MutableSequence[str]):
+                Required. A list of full resource name of documents to
+                purge. In the format
+                ``projects/*/locations/*/collections/*/dataStores/*/branches/*/documents/*``.
+                Recommended max of 100 items.
+        """
+
+        documents: MutableSequence[str] = proto.RepeatedField(
+            proto.STRING,
+            number=1,
+        )
+
+    gcs_source: import_config.GcsSource = proto.Field(
+        proto.MESSAGE,
+        number=5,
+        oneof="source",
+        message=import_config.GcsSource,
+    )
+    inline_source: InlineSource = proto.Field(
+        proto.MESSAGE,
+        number=6,
+        oneof="source",
+        message=InlineSource,
+    )
     parent: str = proto.Field(
         proto.STRING,
         number=1,
@@ -63,6 +256,11 @@ class PurgeDocumentsRequest(proto.Message):
         proto.STRING,
         number=2,
     )
+    error_config: "PurgeErrorConfig" = proto.Field(
+        proto.MESSAGE,
+        number=7,
+        message="PurgeErrorConfig",
+    )
     force: bool = proto.Field(
         proto.BOOL,
         number=3,
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/recommendation_service.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/recommendation_service.py
index f225dff737b9..ae0cbbd72035 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/recommendation_service.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/recommendation_service.py
@@ -37,7 +37,8 @@ class RecommendRequest(proto.Message):
 
     Attributes:
         serving_config (str):
-            Required. Full resource name of a [ServingConfig][]:
+            Required. Full resource name of a
+            [ServingConfig][google.cloud.discoveryengine.v1.ServingConfig]:
             ``projects/*/locations/global/collections/*/engines/*/servingConfigs/*``,
             or
             ``projects/*/locations/global/collections/*/dataStores/*/servingConfigs/*``
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/search_service.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/search_service.py
index 082241aaa2dd..4c31c629c97b 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/search_service.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/search_service.py
@@ -139,9 +139,12 @@ class SearchRequest(proto.Message):
             Leave it unset if ordered by relevance. ``order_by``
             expression is case-sensitive.
 
-            For more information on ordering for retail search, see
-            `Ordering <https://cloud.google.com/retail/docs/filter-and-order#order>`__
-
+            For more information on ordering the website search results,
+            see `Order web search
+            results <https://cloud.google.com/generative-ai-app-builder/docs/order-web-search-results>`__.
+            For more information on ordering the healthcare search
+            results, see `Order healthcare search
+            results <https://cloud.google.com/generative-ai-app-builder/docs/order-hc-results>`__.
             If this field is unrecognizable, an ``INVALID_ARGUMENT`` is
             returned.
         user_info (google.cloud.discoveryengine_v1.types.UserInfo):
@@ -682,12 +685,7 @@ class ContentSearchSpec(proto.Message):
                 be no extractive answer in the search response.
             search_result_mode (google.cloud.discoveryengine_v1.types.SearchRequest.ContentSearchSpec.SearchResultMode):
                 Specifies the search result mode. If unspecified, the search
-                result mode is based on
-                [DataStore.DocumentProcessingConfig.chunking_config][]:
-
-                -  If [DataStore.DocumentProcessingConfig.chunking_config][]
-                   is specified, it defaults to ``CHUNKS``.
-                -  Otherwise, it defaults to ``DOCUMENTS``.
+                result mode defaults to ``DOCUMENTS``.
             chunk_spec (google.cloud.discoveryengine_v1.types.SearchRequest.ContentSearchSpec.ChunkSpec):
                 Specifies the chunk spec to be returned from the search
                 response. Only available if the
@@ -698,12 +696,7 @@ class ContentSearchSpec(proto.Message):
 
         class SearchResultMode(proto.Enum):
             r"""Specifies the search result mode. If unspecified, the search result
-            mode is based on
-            [DataStore.DocumentProcessingConfig.chunking_config][]:
-
-            -  If [DataStore.DocumentProcessingConfig.chunking_config][] is
-               specified, it defaults to ``CHUNKS``.
-            -  Otherwise, it defaults to ``DOCUMENTS``.
+            mode defaults to ``DOCUMENTS``.
 
             Values:
                 SEARCH_RESULT_MODE_UNSPECIFIED (0):
@@ -815,6 +808,14 @@ class SummarySpec(proto.Message):
                     navigational queries. If this field is set to ``true``, we
                     skip generating summaries for non-summary seeking queries
                     and return fallback messages instead.
+                ignore_low_relevant_content (bool):
+                    Specifies whether to filter out queries that have low
+                    relevance. The default value is ``false``.
+
+                    If this field is set to ``false``, all search results are
+                    used regardless of relevance to generate answers. If set to
+                    ``true``, only queries with high relevance search results
+                    will generate answers.
                 model_prompt_spec (google.cloud.discoveryengine_v1.types.SearchRequest.ContentSearchSpec.SummarySpec.ModelPromptSpec):
                     If specified, the spec will be used to modify
                     the prompt provided to the LLM.
@@ -892,6 +893,10 @@ class ModelSpec(proto.Message):
                 proto.BOOL,
                 number=4,
             )
+            ignore_low_relevant_content: bool = proto.Field(
+                proto.BOOL,
+                number=9,
+            )
             model_prompt_spec: "SearchRequest.ContentSearchSpec.SummarySpec.ModelPromptSpec" = proto.Field(
                 proto.MESSAGE,
                 number=5,
@@ -1275,7 +1280,8 @@ class SearchResponse(proto.Message):
             A unique search token. This should be included in the
             [UserEvent][google.cloud.discoveryengine.v1.UserEvent] logs
             resulting from this search, which enables accurate
-            attribution of search model performance.
+            attribution of search model performance. This also helps to
+            identify a request during the customer support scenarios.
         redirect_uri (str):
             The URI of a customer-defined redirect page. If redirect
             action is triggered, no search is performed, and only
@@ -1442,13 +1448,13 @@ class SummarySkippedReason(proto.Enum):
                 ADVERSARIAL_QUERY_IGNORED (1):
                     The adversarial query ignored case.
 
-                    Only populated when
+                    Only used when
                     [SummarySpec.ignore_adversarial_query][google.cloud.discoveryengine.v1.SearchRequest.ContentSearchSpec.SummarySpec.ignore_adversarial_query]
                     is set to ``true``.
                 NON_SUMMARY_SEEKING_QUERY_IGNORED (2):
                     The non-summary seeking query ignored case.
 
-                    Only populated when
+                    Only used when
                     [SummarySpec.ignore_non_summary_seeking_query][google.cloud.discoveryengine.v1.SearchRequest.ContentSearchSpec.SummarySpec.ignore_non_summary_seeking_query]
                     is set to ``true``.
                 OUT_OF_DOMAIN_QUERY_IGNORED (3):
@@ -1470,6 +1476,24 @@ class SummarySkippedReason(proto.Enum):
 
                     Google skips the summary if the LLM addon is not
                     enabled.
+                NO_RELEVANT_CONTENT (6):
+                    The no relevant content case.
+
+                    Google skips the summary if there is no relevant
+                    content in the retrieved search results.
+                JAIL_BREAKING_QUERY_IGNORED (7):
+                    The jail-breaking query ignored case.
+
+                    For example, "Reply in the tone of a competing company's
+                    CEO". Only used when
+                    [SearchRequest.ContentSearchSpec.SummarySpec.ignore_jail_breaking_query]
+                    is set to ``true``.
+                CUSTOMER_POLICY_VIOLATION (8):
+                    The customer policy violation case.
+
+                    Google skips the summary if there is a customer
+                    policy violation detected. The policy is defined
+                    by the customer.
             """
             SUMMARY_SKIPPED_REASON_UNSPECIFIED = 0
             ADVERSARIAL_QUERY_IGNORED = 1
@@ -1477,6 +1501,9 @@ class SummarySkippedReason(proto.Enum):
             OUT_OF_DOMAIN_QUERY_IGNORED = 3
             POTENTIAL_POLICY_VIOLATION = 4
             LLM_ADDON_NOT_ENABLED = 5
+            NO_RELEVANT_CONTENT = 6
+            JAIL_BREAKING_QUERY_IGNORED = 7
+            CUSTOMER_POLICY_VIOLATION = 8
 
         class SafetyAttributes(proto.Message):
             r"""Safety Attribute categories and their associated confidence
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/search_tuning_service.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/search_tuning_service.py
new file mode 100644
index 000000000000..d32623e52681
--- /dev/null
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/search_tuning_service.py
@@ -0,0 +1,271 @@
+# -*- coding: utf-8 -*-
+# Copyright 2024 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+from __future__ import annotations
+
+from typing import MutableMapping, MutableSequence
+
+from google.protobuf import timestamp_pb2  # type: ignore
+from google.rpc import status_pb2  # type: ignore
+import proto  # type: ignore
+
+from google.cloud.discoveryengine_v1.types import custom_tuning_model, import_config
+
+__protobuf__ = proto.module(
+    package="google.cloud.discoveryengine.v1",
+    manifest={
+        "ListCustomModelsRequest",
+        "ListCustomModelsResponse",
+        "TrainCustomModelRequest",
+        "TrainCustomModelResponse",
+        "TrainCustomModelMetadata",
+    },
+)
+
+
+class ListCustomModelsRequest(proto.Message):
+    r"""Request message for
+    [SearchTuningService.ListCustomModels][google.cloud.discoveryengine.v1.SearchTuningService.ListCustomModels]
+    method.
+
+    Attributes:
+        data_store (str):
+            Required. The resource name of the parent Data Store, such
+            as
+            ``projects/*/locations/global/collections/default_collection/dataStores/default_data_store``.
+            This field is used to identify the data store where to fetch
+            the models from.
+    """
+
+    data_store: str = proto.Field(
+        proto.STRING,
+        number=1,
+    )
+
+
+class ListCustomModelsResponse(proto.Message):
+    r"""Response message for
+    [SearchTuningService.ListCustomModels][google.cloud.discoveryengine.v1.SearchTuningService.ListCustomModels]
+    method.
+
+    Attributes:
+        models (MutableSequence[google.cloud.discoveryengine_v1.types.CustomTuningModel]):
+            List of custom tuning models.
+    """
+
+    models: MutableSequence[
+        custom_tuning_model.CustomTuningModel
+    ] = proto.RepeatedField(
+        proto.MESSAGE,
+        number=1,
+        message=custom_tuning_model.CustomTuningModel,
+    )
+
+
+class TrainCustomModelRequest(proto.Message):
+    r"""Request message for
+    [SearchTuningService.TrainCustomModel][google.cloud.discoveryengine.v1.SearchTuningService.TrainCustomModel]
+    method.
+
+
+    .. _oneof: https://proto-plus-python.readthedocs.io/en/stable/fields.html#oneofs-mutually-exclusive-fields
+
+    Attributes:
+        gcs_training_input (google.cloud.discoveryengine_v1.types.TrainCustomModelRequest.GcsTrainingInput):
+            Cloud Storage training input.
+
+            This field is a member of `oneof`_ ``training_input``.
+        data_store (str):
+            Required. The resource name of the Data Store, such as
+            ``projects/*/locations/global/collections/default_collection/dataStores/default_data_store``.
+            This field is used to identify the data store where to train
+            the models.
+        model_type (str):
+            Model to be trained. Supported values are:
+
+            -  **search-tuning**: Fine tuning the search system based on
+               data provided.
+        error_config (google.cloud.discoveryengine_v1.types.ImportErrorConfig):
+            The desired location of errors incurred
+            during the data ingestion and training.
+        model_id (str):
+            If not provided, a UUID will be generated.
+    """
+
+    class GcsTrainingInput(proto.Message):
+        r"""Cloud Storage training data input.
+
+        Attributes:
+            corpus_data_path (str):
+                The Cloud Storage corpus data which could be associated in
+                train data. The data path format is
+                ``gs://<bucket_to_data>/<jsonl_file_name>``. A newline
+                delimited jsonl/ndjson file.
+
+                For search-tuning model, each line should have the \_id,
+                title and text. Example:
+                ``{"_id": "doc1", title: "relevant doc", "text": "relevant text"}``
+            query_data_path (str):
+                The gcs query data which could be associated in train data.
+                The data path format is
+                ``gs://<bucket_to_data>/<jsonl_file_name>``. A newline
+                delimited jsonl/ndjson file.
+
+                For search-tuning model, each line should have the \_id and
+                text. Example: {"_id": "query1", "text": "example query"}
+            train_data_path (str):
+                Cloud Storage training data path whose format should be
+                ``gs://<bucket_to_data>/<tsv_file_name>``. The file should
+                be in tsv format. Each line should have the doc_id and
+                query_id and score (number).
+
+                For search-tuning model, it should have the query-id
+                corpus-id score as tsv file header. The score should be a
+                number in ``[0, inf+)``. The larger the number is, the more
+                relevant the pair is. Example:
+
+                -  ``query-id\tcorpus-id\tscore``
+                -  ``query1\tdoc1\t1``
+            test_data_path (str):
+                Cloud Storage test data. Same format as train_data_path. If
+                not provided, a random 80/20 train/test split will be
+                performed on train_data_path.
+        """
+
+        corpus_data_path: str = proto.Field(
+            proto.STRING,
+            number=1,
+        )
+        query_data_path: str = proto.Field(
+            proto.STRING,
+            number=2,
+        )
+        train_data_path: str = proto.Field(
+            proto.STRING,
+            number=3,
+        )
+        test_data_path: str = proto.Field(
+            proto.STRING,
+            number=4,
+        )
+
+    gcs_training_input: GcsTrainingInput = proto.Field(
+        proto.MESSAGE,
+        number=2,
+        oneof="training_input",
+        message=GcsTrainingInput,
+    )
+    data_store: str = proto.Field(
+        proto.STRING,
+        number=1,
+    )
+    model_type: str = proto.Field(
+        proto.STRING,
+        number=3,
+    )
+    error_config: import_config.ImportErrorConfig = proto.Field(
+        proto.MESSAGE,
+        number=4,
+        message=import_config.ImportErrorConfig,
+    )
+    model_id: str = proto.Field(
+        proto.STRING,
+        number=5,
+    )
+
+
+class TrainCustomModelResponse(proto.Message):
+    r"""Response of the
+    [TrainCustomModelRequest][google.cloud.discoveryengine.v1.TrainCustomModelRequest].
+    This message is returned by the
+    google.longrunning.Operations.response field.
+
+    Attributes:
+        error_samples (MutableSequence[google.rpc.status_pb2.Status]):
+            A sample of errors encountered while
+            processing the data.
+        error_config (google.cloud.discoveryengine_v1.types.ImportErrorConfig):
+            Echoes the destination for the complete
+            errors in the request if set.
+        model_status (str):
+            The trained model status. Possible values are:
+
+            -  **bad-data**: The training data quality is bad.
+            -  **no-improvement**: Tuning didn't improve performance.
+               Won't deploy.
+            -  **in-progress**: Model training job creation is in
+               progress.
+            -  **training**: Model is actively training.
+            -  **evaluating**: The model is evaluating trained metrics.
+            -  **indexing**: The model trained metrics are indexing.
+            -  **ready**: The model is ready for serving.
+        metrics (MutableMapping[str, float]):
+            The metrics of the trained model.
+        model_name (str):
+            Fully qualified name of the
+            CustomTuningModel.
+    """
+
+    error_samples: MutableSequence[status_pb2.Status] = proto.RepeatedField(
+        proto.MESSAGE,
+        number=1,
+        message=status_pb2.Status,
+    )
+    error_config: import_config.ImportErrorConfig = proto.Field(
+        proto.MESSAGE,
+        number=2,
+        message=import_config.ImportErrorConfig,
+    )
+    model_status: str = proto.Field(
+        proto.STRING,
+        number=3,
+    )
+    metrics: MutableMapping[str, float] = proto.MapField(
+        proto.STRING,
+        proto.DOUBLE,
+        number=4,
+    )
+    model_name: str = proto.Field(
+        proto.STRING,
+        number=5,
+    )
+
+
+class TrainCustomModelMetadata(proto.Message):
+    r"""Metadata related to the progress of the TrainCustomModel
+    operation. This is returned by the
+    google.longrunning.Operation.metadata field.
+
+    Attributes:
+        create_time (google.protobuf.timestamp_pb2.Timestamp):
+            Operation create time.
+        update_time (google.protobuf.timestamp_pb2.Timestamp):
+            Operation last update time. If the operation
+            is done, this is also the finish time.
+    """
+
+    create_time: timestamp_pb2.Timestamp = proto.Field(
+        proto.MESSAGE,
+        number=1,
+        message=timestamp_pb2.Timestamp,
+    )
+    update_time: timestamp_pb2.Timestamp = proto.Field(
+        proto.MESSAGE,
+        number=2,
+        message=timestamp_pb2.Timestamp,
+    )
+
+
+__all__ = tuple(sorted(__protobuf__.manifest))
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/user_event.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/user_event.py
index 450bc325a9de..65732fabdad7 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/user_event.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1/types/user_event.py
@@ -671,6 +671,9 @@ class DocumentInfo(proto.Message):
             The promotion IDs associated with this
             Document. Currently, this field is restricted to
             at most one ID.
+        joined (bool):
+            Output only. Whether the referenced Document
+            can be found in the data store.
     """
 
     id: str = proto.Field(
@@ -697,6 +700,10 @@ class DocumentInfo(proto.Message):
         proto.STRING,
         number=4,
     )
+    joined: bool = proto.Field(
+        proto.BOOL,
+        number=5,
+    )
 
 
 class PanelInfo(proto.Message):
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/__init__.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/__init__.py
index 1c4059675d8a..0c6552f8e52c 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/__init__.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/__init__.py
@@ -141,7 +141,7 @@
     UpdateSessionRequest,
 )
 from .types.custom_tuning_model import CustomTuningModel
-from .types.data_store import DataStore, LanguageInfo
+from .types.data_store import DataStore, LanguageInfo, WorkspaceConfig
 from .types.data_store_service import (
     CreateDataStoreMetadata,
     CreateDataStoreRequest,
@@ -157,6 +157,8 @@
 from .types.document import Document, ProcessedDocument
 from .types.document_processing_config import DocumentProcessingConfig
 from .types.document_service import (
+    BatchGetDocumentsMetadataRequest,
+    BatchGetDocumentsMetadataResponse,
     CreateDocumentRequest,
     DeleteDocumentRequest,
     GetDocumentRequest,
@@ -378,6 +380,8 @@
     "BatchCreateTargetSiteMetadata",
     "BatchCreateTargetSitesRequest",
     "BatchCreateTargetSitesResponse",
+    "BatchGetDocumentsMetadataRequest",
+    "BatchGetDocumentsMetadataResponse",
     "BatchVerifyTargetSitesMetadata",
     "BatchVerifyTargetSitesRequest",
     "BatchVerifyTargetSitesResponse",
@@ -632,5 +636,6 @@
     "UserEvent",
     "UserEventServiceClient",
     "UserInfo",
+    "WorkspaceConfig",
     "WriteUserEventRequest",
 )
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/gapic_metadata.json b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/gapic_metadata.json
index d1a982467642..ef4a01c7f9ab 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/gapic_metadata.json
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/gapic_metadata.json
@@ -634,6 +634,11 @@
         "grpc": {
           "libraryClient": "DocumentServiceClient",
           "rpcs": {
+            "BatchGetDocumentsMetadata": {
+              "methods": [
+                "batch_get_documents_metadata"
+              ]
+            },
             "CreateDocument": {
               "methods": [
                 "create_document"
@@ -679,6 +684,11 @@
         "grpc-async": {
           "libraryClient": "DocumentServiceAsyncClient",
           "rpcs": {
+            "BatchGetDocumentsMetadata": {
+              "methods": [
+                "batch_get_documents_metadata"
+              ]
+            },
             "CreateDocument": {
               "methods": [
                 "create_document"
@@ -724,6 +734,11 @@
         "rest": {
           "libraryClient": "DocumentServiceClient",
           "rpcs": {
+            "BatchGetDocumentsMetadata": {
+              "methods": [
+                "batch_get_documents_metadata"
+              ]
+            },
             "CreateDocument": {
               "methods": [
                 "create_document"
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/gapic_version.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/gapic_version.py
index 558c8aab67c5..9e3a3e937556 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/gapic_version.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "0.0.0"  # {x-release-please-version}
+__version__ = "0.12.2"  # {x-release-please-version}
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/services/acl_config_service/async_client.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/services/acl_config_service/async_client.py
index d27321c77e71..8d0e4ed5f010 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/services/acl_config_service/async_client.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/services/acl_config_service/async_client.py
@@ -272,7 +272,7 @@ async def update_acl_config(
         timeout: Union[float, object] = gapic_v1.method.DEFAULT,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> acl_config.AclConfig:
-        r"""Default Acl Configuration for use in a location of a
+        r"""Default ACL configuration for use in a location of a
         customer's project. Updates will only reflect to new
         data stores. Existing data stores will still use the old
         value.
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/services/acl_config_service/client.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/services/acl_config_service/client.py
index 93ac988cd074..21cb6595333e 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/services/acl_config_service/client.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/services/acl_config_service/client.py
@@ -693,7 +693,7 @@ def update_acl_config(
         timeout: Union[float, object] = gapic_v1.method.DEFAULT,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> acl_config.AclConfig:
-        r"""Default Acl Configuration for use in a location of a
+        r"""Default ACL configuration for use in a location of a
         customer's project. Updates will only reflect to new
         data stores. Existing data stores will still use the old
         value.
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/services/acl_config_service/transports/grpc.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/services/acl_config_service/transports/grpc.py
index 1c655ad8b840..89945a11af67 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/services/acl_config_service/transports/grpc.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/services/acl_config_service/transports/grpc.py
@@ -242,7 +242,7 @@ def update_acl_config(
     ) -> Callable[[acl_config_service.UpdateAclConfigRequest], acl_config.AclConfig]:
         r"""Return a callable for the update acl config method over gRPC.
 
-        Default Acl Configuration for use in a location of a
+        Default ACL configuration for use in a location of a
         customer's project. Updates will only reflect to new
         data stores. Existing data stores will still use the old
         value.
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/services/acl_config_service/transports/grpc_asyncio.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/services/acl_config_service/transports/grpc_asyncio.py
index c20e2dc0d50c..ca2d70a4a12f 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/services/acl_config_service/transports/grpc_asyncio.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/services/acl_config_service/transports/grpc_asyncio.py
@@ -248,7 +248,7 @@ def update_acl_config(
     ]:
         r"""Return a callable for the update acl config method over gRPC.
 
-        Default Acl Configuration for use in a location of a
+        Default ACL configuration for use in a location of a
         customer's project. Updates will only reflect to new
         data stores. Existing data stores will still use the old
         value.
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/services/document_service/async_client.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/services/document_service/async_client.py
index ceaa82413af3..c5be03187f84 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/services/document_service/async_client.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/services/document_service/async_client.py
@@ -1274,6 +1274,118 @@ async def sample_get_processed_document():
         # Done; return the response.
         return response
 
+    async def batch_get_documents_metadata(
+        self,
+        request: Optional[
+            Union[document_service.BatchGetDocumentsMetadataRequest, dict]
+        ] = None,
+        *,
+        parent: Optional[str] = None,
+        retry: OptionalRetry = gapic_v1.method.DEFAULT,
+        timeout: Union[float, object] = gapic_v1.method.DEFAULT,
+        metadata: Sequence[Tuple[str, str]] = (),
+    ) -> document_service.BatchGetDocumentsMetadataResponse:
+        r"""Gets index freshness metadata for
+        [Document][google.cloud.discoveryengine.v1alpha.Document]s.
+        Supported for website search only.
+
+        .. code-block:: python
+
+            # This snippet has been automatically generated and should be regarded as a
+            # code template only.
+            # It will require modifications to work:
+            # - It may require correct/in-range values for request initialization.
+            # - It may require specifying regional endpoints when creating the service
+            #   client as shown in:
+            #   https://googleapis.dev/python/google-api-core/latest/client_options.html
+            from google.cloud import discoveryengine_v1alpha
+
+            async def sample_batch_get_documents_metadata():
+                # Create a client
+                client = discoveryengine_v1alpha.DocumentServiceAsyncClient()
+
+                # Initialize request argument(s)
+                request = discoveryengine_v1alpha.BatchGetDocumentsMetadataRequest(
+                    parent="parent_value",
+                )
+
+                # Make the request
+                response = await client.batch_get_documents_metadata(request=request)
+
+                # Handle the response
+                print(response)
+
+        Args:
+            request (Optional[Union[google.cloud.discoveryengine_v1alpha.types.BatchGetDocumentsMetadataRequest, dict]]):
+                The request object. Request message for
+                [DocumentService.BatchGetDocumentsMetadata][google.cloud.discoveryengine.v1alpha.DocumentService.BatchGetDocumentsMetadata]
+                method.
+            parent (:class:`str`):
+                Required. The parent branch resource name, such as
+                ``projects/{project}/locations/{location}/collections/{collection}/dataStores/{data_store}/branches/{branch}``.
+
+                This corresponds to the ``parent`` field
+                on the ``request`` instance; if ``request`` is provided, this
+                should not be set.
+            retry (google.api_core.retry_async.AsyncRetry): Designation of what errors, if any,
+                should be retried.
+            timeout (float): The timeout for this request.
+            metadata (Sequence[Tuple[str, str]]): Strings which should be
+                sent along with the request as metadata.
+
+        Returns:
+            google.cloud.discoveryengine_v1alpha.types.BatchGetDocumentsMetadataResponse:
+                Response message for
+                   [DocumentService.BatchGetDocumentsMetadata][google.cloud.discoveryengine.v1alpha.DocumentService.BatchGetDocumentsMetadata]
+                   method.
+
+        """
+        # Create or coerce a protobuf request object.
+        # - Quick check: If we got a request object, we should *not* have
+        #   gotten any keyword arguments that map to the request.
+        has_flattened_params = any([parent])
+        if request is not None and has_flattened_params:
+            raise ValueError(
+                "If the `request` argument is set, then none of "
+                "the individual field arguments should be set."
+            )
+
+        # - Use the request object if provided (there's no risk of modifying the input as
+        #   there are no flattened fields), or create one.
+        if not isinstance(request, document_service.BatchGetDocumentsMetadataRequest):
+            request = document_service.BatchGetDocumentsMetadataRequest(request)
+
+        # If we have keyword arguments corresponding to fields on the
+        # request, apply these.
+        if parent is not None:
+            request.parent = parent
+
+        # Wrap the RPC method; this adds retry and timeout information,
+        # and friendly error handling.
+        rpc = self._client._transport._wrapped_methods[
+            self._client._transport.batch_get_documents_metadata
+        ]
+
+        # Certain fields should be provided within the metadata header;
+        # add these here.
+        metadata = tuple(metadata) + (
+            gapic_v1.routing_header.to_grpc_metadata((("parent", request.parent),)),
+        )
+
+        # Validate the universe domain.
+        self._client._validate_universe_domain()
+
+        # Send the request.
+        response = await rpc(
+            request,
+            retry=retry,
+            timeout=timeout,
+            metadata=metadata,
+        )
+
+        # Done; return the response.
+        return response
+
     async def list_operations(
         self,
         request: Optional[operations_pb2.ListOperationsRequest] = None,
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/services/document_service/client.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/services/document_service/client.py
index 4713addb0922..11e4241be964 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/services/document_service/client.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/services/document_service/client.py
@@ -1723,6 +1723,117 @@ def sample_get_processed_document():
         # Done; return the response.
         return response
 
+    def batch_get_documents_metadata(
+        self,
+        request: Optional[
+            Union[document_service.BatchGetDocumentsMetadataRequest, dict]
+        ] = None,
+        *,
+        parent: Optional[str] = None,
+        retry: OptionalRetry = gapic_v1.method.DEFAULT,
+        timeout: Union[float, object] = gapic_v1.method.DEFAULT,
+        metadata: Sequence[Tuple[str, str]] = (),
+    ) -> document_service.BatchGetDocumentsMetadataResponse:
+        r"""Gets index freshness metadata for
+        [Document][google.cloud.discoveryengine.v1alpha.Document]s.
+        Supported for website search only.
+
+        .. code-block:: python
+
+            # This snippet has been automatically generated and should be regarded as a
+            # code template only.
+            # It will require modifications to work:
+            # - It may require correct/in-range values for request initialization.
+            # - It may require specifying regional endpoints when creating the service
+            #   client as shown in:
+            #   https://googleapis.dev/python/google-api-core/latest/client_options.html
+            from google.cloud import discoveryengine_v1alpha
+
+            def sample_batch_get_documents_metadata():
+                # Create a client
+                client = discoveryengine_v1alpha.DocumentServiceClient()
+
+                # Initialize request argument(s)
+                request = discoveryengine_v1alpha.BatchGetDocumentsMetadataRequest(
+                    parent="parent_value",
+                )
+
+                # Make the request
+                response = client.batch_get_documents_metadata(request=request)
+
+                # Handle the response
+                print(response)
+
+        Args:
+            request (Union[google.cloud.discoveryengine_v1alpha.types.BatchGetDocumentsMetadataRequest, dict]):
+                The request object. Request message for
+                [DocumentService.BatchGetDocumentsMetadata][google.cloud.discoveryengine.v1alpha.DocumentService.BatchGetDocumentsMetadata]
+                method.
+            parent (str):
+                Required. The parent branch resource name, such as
+                ``projects/{project}/locations/{location}/collections/{collection}/dataStores/{data_store}/branches/{branch}``.
+
+                This corresponds to the ``parent`` field
+                on the ``request`` instance; if ``request`` is provided, this
+                should not be set.
+            retry (google.api_core.retry.Retry): Designation of what errors, if any,
+                should be retried.
+            timeout (float): The timeout for this request.
+            metadata (Sequence[Tuple[str, str]]): Strings which should be
+                sent along with the request as metadata.
+
+        Returns:
+            google.cloud.discoveryengine_v1alpha.types.BatchGetDocumentsMetadataResponse:
+                Response message for
+                   [DocumentService.BatchGetDocumentsMetadata][google.cloud.discoveryengine.v1alpha.DocumentService.BatchGetDocumentsMetadata]
+                   method.
+
+        """
+        # Create or coerce a protobuf request object.
+        # - Quick check: If we got a request object, we should *not* have
+        #   gotten any keyword arguments that map to the request.
+        has_flattened_params = any([parent])
+        if request is not None and has_flattened_params:
+            raise ValueError(
+                "If the `request` argument is set, then none of "
+                "the individual field arguments should be set."
+            )
+
+        # - Use the request object if provided (there's no risk of modifying the input as
+        #   there are no flattened fields), or create one.
+        if not isinstance(request, document_service.BatchGetDocumentsMetadataRequest):
+            request = document_service.BatchGetDocumentsMetadataRequest(request)
+            # If we have keyword arguments corresponding to fields on the
+            # request, apply these.
+            if parent is not None:
+                request.parent = parent
+
+        # Wrap the RPC method; this adds retry and timeout information,
+        # and friendly error handling.
+        rpc = self._transport._wrapped_methods[
+            self._transport.batch_get_documents_metadata
+        ]
+
+        # Certain fields should be provided within the metadata header;
+        # add these here.
+        metadata = tuple(metadata) + (
+            gapic_v1.routing_header.to_grpc_metadata((("parent", request.parent),)),
+        )
+
+        # Validate the universe domain.
+        self._validate_universe_domain()
+
+        # Send the request.
+        response = rpc(
+            request,
+            retry=retry,
+            timeout=timeout,
+            metadata=metadata,
+        )
+
+        # Done; return the response.
+        return response
+
     def __enter__(self) -> "DocumentServiceClient":
         return self
 
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/services/document_service/transports/base.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/services/document_service/transports/base.py
index 5acab8f79e13..6eb81a0622da 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/services/document_service/transports/base.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/services/document_service/transports/base.py
@@ -186,6 +186,11 @@ def _prep_wrapped_messages(self, client_info):
                 default_timeout=None,
                 client_info=client_info,
             ),
+            self.batch_get_documents_metadata: gapic_v1.method.wrap_method(
+                self.batch_get_documents_metadata,
+                default_timeout=None,
+                client_info=client_info,
+            ),
         }
 
     def close(self):
@@ -277,6 +282,18 @@ def get_processed_document(
     ]:
         raise NotImplementedError()
 
+    @property
+    def batch_get_documents_metadata(
+        self,
+    ) -> Callable[
+        [document_service.BatchGetDocumentsMetadataRequest],
+        Union[
+            document_service.BatchGetDocumentsMetadataResponse,
+            Awaitable[document_service.BatchGetDocumentsMetadataResponse],
+        ],
+    ]:
+        raise NotImplementedError()
+
     @property
     def list_operations(
         self,
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/services/document_service/transports/grpc.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/services/document_service/transports/grpc.py
index 462ae0dae998..5a71389bf9b1 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/services/document_service/transports/grpc.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/services/document_service/transports/grpc.py
@@ -503,6 +503,37 @@ def get_processed_document(
             )
         return self._stubs["get_processed_document"]
 
+    @property
+    def batch_get_documents_metadata(
+        self,
+    ) -> Callable[
+        [document_service.BatchGetDocumentsMetadataRequest],
+        document_service.BatchGetDocumentsMetadataResponse,
+    ]:
+        r"""Return a callable for the batch get documents metadata method over gRPC.
+
+        Gets index freshness metadata for
+        [Document][google.cloud.discoveryengine.v1alpha.Document]s.
+        Supported for website search only.
+
+        Returns:
+            Callable[[~.BatchGetDocumentsMetadataRequest],
+                    ~.BatchGetDocumentsMetadataResponse]:
+                A function that, when called, will call the underlying RPC
+                on the server.
+        """
+        # Generate a "stub function" on-the-fly which will actually make
+        # the request.
+        # gRPC handles serialization and deserialization, so we just need
+        # to pass in the functions for each.
+        if "batch_get_documents_metadata" not in self._stubs:
+            self._stubs["batch_get_documents_metadata"] = self.grpc_channel.unary_unary(
+                "/google.cloud.discoveryengine.v1alpha.DocumentService/BatchGetDocumentsMetadata",
+                request_serializer=document_service.BatchGetDocumentsMetadataRequest.serialize,
+                response_deserializer=document_service.BatchGetDocumentsMetadataResponse.deserialize,
+            )
+        return self._stubs["batch_get_documents_metadata"]
+
     def close(self):
         self.grpc_channel.close()
 
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/services/document_service/transports/grpc_asyncio.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/services/document_service/transports/grpc_asyncio.py
index 46ea26ca0ae2..6a794841145b 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/services/document_service/transports/grpc_asyncio.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/services/document_service/transports/grpc_asyncio.py
@@ -519,6 +519,37 @@ def get_processed_document(
             )
         return self._stubs["get_processed_document"]
 
+    @property
+    def batch_get_documents_metadata(
+        self,
+    ) -> Callable[
+        [document_service.BatchGetDocumentsMetadataRequest],
+        Awaitable[document_service.BatchGetDocumentsMetadataResponse],
+    ]:
+        r"""Return a callable for the batch get documents metadata method over gRPC.
+
+        Gets index freshness metadata for
+        [Document][google.cloud.discoveryengine.v1alpha.Document]s.
+        Supported for website search only.
+
+        Returns:
+            Callable[[~.BatchGetDocumentsMetadataRequest],
+                    Awaitable[~.BatchGetDocumentsMetadataResponse]]:
+                A function that, when called, will call the underlying RPC
+                on the server.
+        """
+        # Generate a "stub function" on-the-fly which will actually make
+        # the request.
+        # gRPC handles serialization and deserialization, so we just need
+        # to pass in the functions for each.
+        if "batch_get_documents_metadata" not in self._stubs:
+            self._stubs["batch_get_documents_metadata"] = self.grpc_channel.unary_unary(
+                "/google.cloud.discoveryengine.v1alpha.DocumentService/BatchGetDocumentsMetadata",
+                request_serializer=document_service.BatchGetDocumentsMetadataRequest.serialize,
+                response_deserializer=document_service.BatchGetDocumentsMetadataResponse.deserialize,
+            )
+        return self._stubs["batch_get_documents_metadata"]
+
     def _prep_wrapped_messages(self, client_info):
         """Precompute the wrapped methods, overriding the base class method to use async wrappers."""
         self._wrapped_methods = {
@@ -571,6 +602,11 @@ def _prep_wrapped_messages(self, client_info):
                 default_timeout=None,
                 client_info=client_info,
             ),
+            self.batch_get_documents_metadata: gapic_v1.method_async.wrap_method(
+                self.batch_get_documents_metadata,
+                default_timeout=None,
+                client_info=client_info,
+            ),
         }
 
     def close(self):
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/services/document_service/transports/rest.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/services/document_service/transports/rest.py
index e3eca6321b0d..23d578101bc4 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/services/document_service/transports/rest.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/services/document_service/transports/rest.py
@@ -79,6 +79,14 @@ class DocumentServiceRestInterceptor:
 
     .. code-block:: python
         class MyCustomDocumentServiceInterceptor(DocumentServiceRestInterceptor):
+            def pre_batch_get_documents_metadata(self, request, metadata):
+                logging.log(f"Received request: {request}")
+                return request, metadata
+
+            def post_batch_get_documents_metadata(self, response):
+                logging.log(f"Received response: {response}")
+                return response
+
             def pre_create_document(self, request, metadata):
                 logging.log(f"Received request: {request}")
                 return request, metadata
@@ -145,6 +153,31 @@ def post_update_document(self, response):
 
     """
 
+    def pre_batch_get_documents_metadata(
+        self,
+        request: document_service.BatchGetDocumentsMetadataRequest,
+        metadata: Sequence[Tuple[str, str]],
+    ) -> Tuple[
+        document_service.BatchGetDocumentsMetadataRequest, Sequence[Tuple[str, str]]
+    ]:
+        """Pre-rpc interceptor for batch_get_documents_metadata
+
+        Override in a subclass to manipulate the request or metadata
+        before they are sent to the DocumentService server.
+        """
+        return request, metadata
+
+    def post_batch_get_documents_metadata(
+        self, response: document_service.BatchGetDocumentsMetadataResponse
+    ) -> document_service.BatchGetDocumentsMetadataResponse:
+        """Post-rpc interceptor for batch_get_documents_metadata
+
+        Override in a subclass to manipulate the response
+        after it is returned by the DocumentService server but before
+        it is returned to user code.
+        """
+        return response
+
     def pre_create_document(
         self,
         request: document_service.CreateDocumentRequest,
@@ -655,6 +688,105 @@ def operations_client(self) -> operations_v1.AbstractOperationsClient:
         # Return the client from cache.
         return self._operations_client
 
+    class _BatchGetDocumentsMetadata(DocumentServiceRestStub):
+        def __hash__(self):
+            return hash("BatchGetDocumentsMetadata")
+
+        __REQUIRED_FIELDS_DEFAULT_VALUES: Dict[str, Any] = {
+            "matcher": {},
+        }
+
+        @classmethod
+        def _get_unset_required_fields(cls, message_dict):
+            return {
+                k: v
+                for k, v in cls.__REQUIRED_FIELDS_DEFAULT_VALUES.items()
+                if k not in message_dict
+            }
+
+        def __call__(
+            self,
+            request: document_service.BatchGetDocumentsMetadataRequest,
+            *,
+            retry: OptionalRetry = gapic_v1.method.DEFAULT,
+            timeout: Optional[float] = None,
+            metadata: Sequence[Tuple[str, str]] = (),
+        ) -> document_service.BatchGetDocumentsMetadataResponse:
+            r"""Call the batch get documents
+            metadata method over HTTP.
+
+                Args:
+                    request (~.document_service.BatchGetDocumentsMetadataRequest):
+                        The request object. Request message for
+                    [DocumentService.BatchGetDocumentsMetadata][google.cloud.discoveryengine.v1alpha.DocumentService.BatchGetDocumentsMetadata]
+                    method.
+                    retry (google.api_core.retry.Retry): Designation of what errors, if any,
+                        should be retried.
+                    timeout (float): The timeout for this request.
+                    metadata (Sequence[Tuple[str, str]]): Strings which should be
+                        sent along with the request as metadata.
+
+                Returns:
+                    ~.document_service.BatchGetDocumentsMetadataResponse:
+                        Response message for
+                    [DocumentService.BatchGetDocumentsMetadata][google.cloud.discoveryengine.v1alpha.DocumentService.BatchGetDocumentsMetadata]
+                    method.
+
+            """
+
+            http_options: List[Dict[str, str]] = [
+                {
+                    "method": "get",
+                    "uri": "/v1alpha/{parent=projects/*/locations/*/dataStores/*/branches/*}/batchGetDocumentsMetadata",
+                },
+                {
+                    "method": "get",
+                    "uri": "/v1alpha/{parent=projects/*/locations/*/collections/*/dataStores/*/branches/*}/batchGetDocumentsMetadata",
+                },
+            ]
+            request, metadata = self._interceptor.pre_batch_get_documents_metadata(
+                request, metadata
+            )
+            pb_request = document_service.BatchGetDocumentsMetadataRequest.pb(request)
+            transcoded_request = path_template.transcode(http_options, pb_request)
+
+            uri = transcoded_request["uri"]
+            method = transcoded_request["method"]
+
+            # Jsonify the query params
+            query_params = json.loads(
+                json_format.MessageToJson(
+                    transcoded_request["query_params"],
+                    use_integers_for_enums=True,
+                )
+            )
+            query_params.update(self._get_unset_required_fields(query_params))
+
+            query_params["$alt"] = "json;enum-encoding=int"
+
+            # Send the request
+            headers = dict(metadata)
+            headers["Content-Type"] = "application/json"
+            response = getattr(self._session, method)(
+                "{host}{uri}".format(host=self._host, uri=uri),
+                timeout=timeout,
+                headers=headers,
+                params=rest_helpers.flatten_query_params(query_params, strict=True),
+            )
+
+            # In case of error, raise the appropriate core_exceptions.GoogleAPICallError exception
+            # subclass.
+            if response.status_code >= 400:
+                raise core_exceptions.from_http_response(response)
+
+            # Return the response
+            resp = document_service.BatchGetDocumentsMetadataResponse()
+            pb_resp = document_service.BatchGetDocumentsMetadataResponse.pb(resp)
+
+            json_format.Parse(response.content, pb_resp, ignore_unknown_fields=True)
+            resp = self._interceptor.post_batch_get_documents_metadata(resp)
+            return resp
+
     class _CreateDocument(DocumentServiceRestStub):
         def __hash__(self):
             return hash("CreateDocument")
@@ -1426,6 +1558,17 @@ def __call__(
             resp = self._interceptor.post_update_document(resp)
             return resp
 
+    @property
+    def batch_get_documents_metadata(
+        self,
+    ) -> Callable[
+        [document_service.BatchGetDocumentsMetadataRequest],
+        document_service.BatchGetDocumentsMetadataResponse,
+    ]:
+        # The return type is fine, but mypy isn't sophisticated enough to determine what's going on here.
+        # In C++ this would require a dynamic_cast
+        return self._BatchGetDocumentsMetadata(self._session, self._host, self._interceptor)  # type: ignore
+
     @property
     def create_document(
         self,
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/types/__init__.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/types/__init__.py
index 3f73bf8fcdbc..caa4c390030b 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/types/__init__.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/types/__init__.py
@@ -72,7 +72,7 @@
     UpdateSessionRequest,
 )
 from .custom_tuning_model import CustomTuningModel
-from .data_store import DataStore, LanguageInfo
+from .data_store import DataStore, LanguageInfo, WorkspaceConfig
 from .data_store_service import (
     CreateDataStoreMetadata,
     CreateDataStoreRequest,
@@ -88,6 +88,8 @@
 from .document import Document, ProcessedDocument
 from .document_processing_config import DocumentProcessingConfig
 from .document_service import (
+    BatchGetDocumentsMetadataRequest,
+    BatchGetDocumentsMetadataResponse,
     CreateDocumentRequest,
     DeleteDocumentRequest,
     GetDocumentRequest,
@@ -337,6 +339,7 @@
     "CustomTuningModel",
     "DataStore",
     "LanguageInfo",
+    "WorkspaceConfig",
     "CreateDataStoreMetadata",
     "CreateDataStoreRequest",
     "DeleteDataStoreMetadata",
@@ -350,6 +353,8 @@
     "Document",
     "ProcessedDocument",
     "DocumentProcessingConfig",
+    "BatchGetDocumentsMetadataRequest",
+    "BatchGetDocumentsMetadataResponse",
     "CreateDocumentRequest",
     "DeleteDocumentRequest",
     "GetDocumentRequest",
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/types/answer.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/types/answer.py
index aea3764d85fb..ef0d79a41a53 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/types/answer.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/types/answer.py
@@ -111,6 +111,12 @@ class AnswerSkippedReason(proto.Enum):
                 For example, "Reply in the tone of a competing
                 company's CEO". Google skips the answer if the
                 query is classified as a jail-breaking query.
+            CUSTOMER_POLICY_VIOLATION (7):
+                The customer policy violation case.
+
+                Google skips the summary if there is a customer
+                policy violation detected. The policy is defined
+                by the customer.
         """
         ANSWER_SKIPPED_REASON_UNSPECIFIED = 0
         ADVERSARIAL_QUERY_IGNORED = 1
@@ -119,6 +125,7 @@ class AnswerSkippedReason(proto.Enum):
         POTENTIAL_POLICY_VIOLATION = 4
         NO_RELEVANT_CONTENT = 5
         JAIL_BREAKING_QUERY_IGNORED = 6
+        CUSTOMER_POLICY_VIOLATION = 7
 
     class Citation(proto.Message):
         r"""Citation info for a segment.
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/types/control.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/types/control.py
index 6f9d1b7ecb2c..c0972089ab3e 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/types/control.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/types/control.py
@@ -154,7 +154,7 @@ class Control(proto.Message):
         associated_serving_config_ids (MutableSequence[str]):
             Output only. List of all
             [ServingConfig][google.cloud.discoveryengine.v1alpha.ServingConfig]
-            ids this control is attached to. May take up to 10 minutes
+            IDs this control is attached to. May take up to 10 minutes
             to update after changes.
         solution_type (google.cloud.discoveryengine_v1alpha.types.SolutionType):
             Required. Immutable. What solution the
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/types/custom_tuning_model.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/types/custom_tuning_model.py
index ab529ab2e91f..5381115d74c7 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/types/custom_tuning_model.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/types/custom_tuning_model.py
@@ -74,6 +74,9 @@ class ModelState(proto.Enum):
             NO_IMPROVEMENT (6):
                 The model training finished successfully but
                 metrics did not improve.
+            INPUT_VALIDATION_FAILED (7):
+                Input data validation failed. Model training
+                didn't start.
         """
         MODEL_STATE_UNSPECIFIED = 0
         TRAINING_PAUSED = 1
@@ -82,6 +85,7 @@ class ModelState(proto.Enum):
         READY_FOR_SERVING = 4
         TRAINING_FAILED = 5
         NO_IMPROVEMENT = 6
+        INPUT_VALIDATION_FAILED = 7
 
     name: str = proto.Field(
         proto.STRING,
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/types/data_store.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/types/data_store.py
index 82b01be6e0e5..d5ef66749bbe 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/types/data_store.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/types/data_store.py
@@ -31,6 +31,7 @@
     manifest={
         "DataStore",
         "LanguageInfo",
+        "WorkspaceConfig",
     },
 )
 
@@ -100,6 +101,12 @@ class DataStore(proto.Message):
 
             Currently ACL is only supported in ``GENERIC`` industry
             vertical with non-\ ``PUBLIC_WEBSITE`` content config.
+        workspace_config (google.cloud.discoveryengine_v1alpha.types.WorkspaceConfig):
+            Config to store data store type configuration for workspace
+            data. This must be set when
+            [DataStore.content_config][google.cloud.discoveryengine.v1alpha.DataStore.content_config]
+            is set as
+            [DataStore.ContentConfig.GOOGLE_WORKSPACE][google.cloud.discoveryengine.v1alpha.DataStore.ContentConfig.GOOGLE_WORKSPACE].
         document_processing_config (google.cloud.discoveryengine_v1alpha.types.DocumentProcessingConfig):
             Configuration for Document understanding and
             enrichment.
@@ -138,11 +145,16 @@ class ContentConfig(proto.Enum):
             PUBLIC_WEBSITE (3):
                 The data store is used for public website
                 search.
+            GOOGLE_WORKSPACE (4):
+                The data store is used for workspace search. Details of
+                workspace data store are specified in the
+                [WorkspaceConfig][google.cloud.discoveryengine.v1alpha.WorkspaceConfig].
         """
         CONTENT_CONFIG_UNSPECIFIED = 0
         NO_CONTENT = 1
         CONTENT_REQUIRED = 2
         PUBLIC_WEBSITE = 3
+        GOOGLE_WORKSPACE = 4
 
     name: str = proto.Field(
         proto.STRING,
@@ -190,6 +202,11 @@ class ContentConfig(proto.Enum):
         proto.BOOL,
         number=24,
     )
+    workspace_config: "WorkspaceConfig" = proto.Field(
+        proto.MESSAGE,
+        number=25,
+        message="WorkspaceConfig",
+    )
     document_processing_config: gcd_document_processing_config.DocumentProcessingConfig = proto.Field(
         proto.MESSAGE,
         number=27,
@@ -240,4 +257,57 @@ class LanguageInfo(proto.Message):
     )
 
 
+class WorkspaceConfig(proto.Message):
+    r"""Config to store data store type configuration for workspace
+    data
+
+    Attributes:
+        type_ (google.cloud.discoveryengine_v1alpha.types.WorkspaceConfig.Type):
+            The Google Workspace data source.
+        dasher_customer_id (str):
+            Obfuscated Dasher customer ID.
+    """
+
+    class Type(proto.Enum):
+        r"""Specifies the type of Workspace App supported by this
+        DataStore
+
+        Values:
+            TYPE_UNSPECIFIED (0):
+                Defaults to an unspecified Workspace type.
+            GOOGLE_DRIVE (1):
+                Workspace Data Store contains Drive data
+            GOOGLE_MAIL (2):
+                Workspace Data Store contains Mail data
+            GOOGLE_SITES (3):
+                Workspace Data Store contains Sites data
+            GOOGLE_CALENDAR (4):
+                Workspace Data Store contains Calendar data
+            GOOGLE_CHAT (5):
+                Workspace Data Store contains Chat data
+            GOOGLE_GROUPS (6):
+                Workspace Data Store contains Groups data
+            GOOGLE_KEEP (7):
+                Workspace Data Store contains Keep data
+        """
+        TYPE_UNSPECIFIED = 0
+        GOOGLE_DRIVE = 1
+        GOOGLE_MAIL = 2
+        GOOGLE_SITES = 3
+        GOOGLE_CALENDAR = 4
+        GOOGLE_CHAT = 5
+        GOOGLE_GROUPS = 6
+        GOOGLE_KEEP = 7
+
+    type_: Type = proto.Field(
+        proto.ENUM,
+        number=1,
+        enum=Type,
+    )
+    dasher_customer_id: str = proto.Field(
+        proto.STRING,
+        number=2,
+    )
+
+
 __all__ = tuple(sorted(__protobuf__.manifest))
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/types/document.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/types/document.py
index 7792e6eb5a81..119f1b89d472 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/types/document.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/types/document.py
@@ -19,6 +19,7 @@
 
 from google.protobuf import struct_pb2  # type: ignore
 from google.protobuf import timestamp_pb2  # type: ignore
+from google.rpc import status_pb2  # type: ignore
 import proto  # type: ignore
 
 from google.cloud.discoveryengine_v1alpha.types import common
@@ -96,6 +97,14 @@ class Document(proto.Message):
 
             This field is OUTPUT_ONLY. If this field is not populated,
             it means the document has never been indexed.
+        index_status (google.cloud.discoveryengine_v1alpha.types.Document.IndexStatus):
+            Output only. The index status of the document.
+
+            -  If document is indexed successfully, the index_time field
+               is populated.
+            -  Otherwise, if document is not indexed due to errors, the
+               error_samples field is populated.
+            -  Otherwise, index_status is unset.
     """
 
     class Content(proto.Message):
@@ -211,6 +220,31 @@ class AccessRestriction(proto.Message):
             message="Document.AclInfo.AccessRestriction",
         )
 
+    class IndexStatus(proto.Message):
+        r"""Index status of the document.
+
+        Attributes:
+            index_time (google.protobuf.timestamp_pb2.Timestamp):
+                The time when the document was indexed.
+                If this field is populated, it means the
+                document has been indexed.
+            error_samples (MutableSequence[google.rpc.status_pb2.Status]):
+                A sample of errors encountered while indexing
+                the document. If this field is populated, the
+                document is not indexed due to errors.
+        """
+
+        index_time: timestamp_pb2.Timestamp = proto.Field(
+            proto.MESSAGE,
+            number=1,
+            message=timestamp_pb2.Timestamp,
+        )
+        error_samples: MutableSequence[status_pb2.Status] = proto.RepeatedField(
+            proto.MESSAGE,
+            number=2,
+            message=status_pb2.Status,
+        )
+
     struct_data: struct_pb2.Struct = proto.Field(
         proto.MESSAGE,
         number=4,
@@ -258,6 +292,11 @@ class AccessRestriction(proto.Message):
         number=13,
         message=timestamp_pb2.Timestamp,
     )
+    index_status: IndexStatus = proto.Field(
+        proto.MESSAGE,
+        number=15,
+        message=IndexStatus,
+    )
 
 
 class ProcessedDocument(proto.Message):
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/types/document_service.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/types/document_service.py
index cee091f225bd..f1e063d05b9b 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/types/document_service.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/types/document_service.py
@@ -18,6 +18,7 @@
 from typing import MutableMapping, MutableSequence
 
 from google.protobuf import field_mask_pb2  # type: ignore
+from google.protobuf import timestamp_pb2  # type: ignore
 import proto  # type: ignore
 
 from google.cloud.discoveryengine_v1alpha.types import document as gcd_document
@@ -32,6 +33,8 @@
         "UpdateDocumentRequest",
         "DeleteDocumentRequest",
         "GetProcessedDocumentRequest",
+        "BatchGetDocumentsMetadataRequest",
+        "BatchGetDocumentsMetadataResponse",
     },
 )
 
@@ -349,4 +352,163 @@ class ProcessedDocumentFormat(proto.Enum):
     )
 
 
+class BatchGetDocumentsMetadataRequest(proto.Message):
+    r"""Request message for
+    [DocumentService.BatchGetDocumentsMetadata][google.cloud.discoveryengine.v1alpha.DocumentService.BatchGetDocumentsMetadata]
+    method.
+
+    Attributes:
+        parent (str):
+            Required. The parent branch resource name, such as
+            ``projects/{project}/locations/{location}/collections/{collection}/dataStores/{data_store}/branches/{branch}``.
+        matcher (google.cloud.discoveryengine_v1alpha.types.BatchGetDocumentsMetadataRequest.Matcher):
+            Required. Matcher for the
+            [Document][google.cloud.discoveryengine.v1alpha.Document]s.
+    """
+
+    class UrisMatcher(proto.Message):
+        r"""Matcher for the
+        [Document][google.cloud.discoveryengine.v1alpha.Document]s by exact
+        uris.
+
+        Attributes:
+            uris (MutableSequence[str]):
+                The exact URIs to match by.
+        """
+
+        uris: MutableSequence[str] = proto.RepeatedField(
+            proto.STRING,
+            number=1,
+        )
+
+    class Matcher(proto.Message):
+        r"""Matcher for the
+        [Document][google.cloud.discoveryengine.v1alpha.Document]s.
+        Currently supports matching by exact URIs.
+
+
+        .. _oneof: https://proto-plus-python.readthedocs.io/en/stable/fields.html#oneofs-mutually-exclusive-fields
+
+        Attributes:
+            uris_matcher (google.cloud.discoveryengine_v1alpha.types.BatchGetDocumentsMetadataRequest.UrisMatcher):
+                Matcher by exact URIs.
+
+                This field is a member of `oneof`_ ``matcher``.
+        """
+
+        uris_matcher: "BatchGetDocumentsMetadataRequest.UrisMatcher" = proto.Field(
+            proto.MESSAGE,
+            number=1,
+            oneof="matcher",
+            message="BatchGetDocumentsMetadataRequest.UrisMatcher",
+        )
+
+    parent: str = proto.Field(
+        proto.STRING,
+        number=1,
+    )
+    matcher: Matcher = proto.Field(
+        proto.MESSAGE,
+        number=2,
+        message=Matcher,
+    )
+
+
+class BatchGetDocumentsMetadataResponse(proto.Message):
+    r"""Response message for
+    [DocumentService.BatchGetDocumentsMetadata][google.cloud.discoveryengine.v1alpha.DocumentService.BatchGetDocumentsMetadata]
+    method.
+
+    Attributes:
+        documents_metadata (MutableSequence[google.cloud.discoveryengine_v1alpha.types.BatchGetDocumentsMetadataResponse.DocumentMetadata]):
+            The metadata of the
+            [Document][google.cloud.discoveryengine.v1alpha.Document]s.
+    """
+
+    class State(proto.Enum):
+        r"""The state of the
+        [Document][google.cloud.discoveryengine.v1alpha.Document].
+
+        Values:
+            STATE_UNSPECIFIED (0):
+                Should never be set.
+            INDEXED (1):
+                The
+                [Document][google.cloud.discoveryengine.v1alpha.Document] is
+                indexed.
+            NOT_IN_TARGET_SITE (2):
+                The
+                [Document][google.cloud.discoveryengine.v1alpha.Document] is
+                not indexed because its URI is not in the
+                [TargetSite][google.cloud.discoveryengine.v1alpha.TargetSite].
+            NOT_IN_INDEX (3):
+                The
+                [Document][google.cloud.discoveryengine.v1alpha.Document] is
+                not indexed.
+        """
+        STATE_UNSPECIFIED = 0
+        INDEXED = 1
+        NOT_IN_TARGET_SITE = 2
+        NOT_IN_INDEX = 3
+
+    class DocumentMetadata(proto.Message):
+        r"""The metadata of a
+        [Document][google.cloud.discoveryengine.v1alpha.Document].
+
+        Attributes:
+            matcher_value (google.cloud.discoveryengine_v1alpha.types.BatchGetDocumentsMetadataResponse.DocumentMetadata.MatcherValue):
+                The value of the matcher that was used to match the
+                [Document][google.cloud.discoveryengine.v1alpha.Document].
+            state (google.cloud.discoveryengine_v1alpha.types.BatchGetDocumentsMetadataResponse.State):
+                The state of the document.
+            last_refreshed_time (google.protobuf.timestamp_pb2.Timestamp):
+                The timestamp of the last time the
+                [Document][google.cloud.discoveryengine.v1alpha.Document]
+                was last indexed.
+        """
+
+        class MatcherValue(proto.Message):
+            r"""The value of the matcher that was used to match the
+            [Document][google.cloud.discoveryengine.v1alpha.Document].
+
+
+            .. _oneof: https://proto-plus-python.readthedocs.io/en/stable/fields.html#oneofs-mutually-exclusive-fields
+
+            Attributes:
+                uri (str):
+                    If match by URI, the URI of the
+                    [Document][google.cloud.discoveryengine.v1alpha.Document].
+
+                    This field is a member of `oneof`_ ``matcher_value``.
+            """
+
+            uri: str = proto.Field(
+                proto.STRING,
+                number=1,
+                oneof="matcher_value",
+            )
+
+        matcher_value: "BatchGetDocumentsMetadataResponse.DocumentMetadata.MatcherValue" = proto.Field(
+            proto.MESSAGE,
+            number=2,
+            message="BatchGetDocumentsMetadataResponse.DocumentMetadata.MatcherValue",
+        )
+        state: "BatchGetDocumentsMetadataResponse.State" = proto.Field(
+            proto.ENUM,
+            number=3,
+            enum="BatchGetDocumentsMetadataResponse.State",
+        )
+        last_refreshed_time: timestamp_pb2.Timestamp = proto.Field(
+            proto.MESSAGE,
+            number=4,
+            message=timestamp_pb2.Timestamp,
+        )
+
+    documents_metadata: MutableSequence[DocumentMetadata] = proto.RepeatedField(
+        proto.MESSAGE,
+        number=1,
+        message=DocumentMetadata,
+    )
+
+
 __all__ = tuple(sorted(__protobuf__.manifest))
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/types/grounded_generation_service.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/types/grounded_generation_service.py
index 40fa41fd061f..03ce6ee20fd3 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/types/grounded_generation_service.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/types/grounded_generation_service.py
@@ -180,8 +180,9 @@ class Claim(proto.Message):
                 false. In that case, no grounding check was done for the
                 claim and therefore
                 [citation_indices][google.cloud.discoveryengine.v1alpha.CheckGroundingResponse.Claim.citation_indices],
+                [anti_citation_indices][google.cloud.discoveryengine.v1alpha.CheckGroundingResponse.Claim.anti_citation_indices],
                 and
-                [anti_citation_indices][google.cloud.discoveryengine.v1alpha.CheckGroundingResponse.Claim.anti_citation_indices]
+                [score][google.cloud.discoveryengine.v1alpha.CheckGroundingResponse.Claim.score]
                 should not be returned.
 
                 This field is a member of `oneof`_ ``_grounding_check_required``.
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/types/import_config.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/types/import_config.py
index 35e5e74f7660..7052c1e8850f 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/types/import_config.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/types/import_config.py
@@ -129,10 +129,10 @@ class BigQuerySource(proto.Message):
 
             This field is a member of `oneof`_ ``partition``.
         project_id (str):
-            The project ID (can be project # or ID) that
-            the BigQuery source is in with a length limit of
-            128 characters. If not specified, inherits the
-            project ID from the parent request.
+            The project ID or the project number that
+            contains the BigQuery source. Has a length limit
+            of 128 characters. If not specified, inherits
+            the project ID from the parent request.
         dataset_id (str):
             Required. The BigQuery data set to copy the
             data from with a length limit of 1,024
@@ -205,9 +205,9 @@ class SpannerSource(proto.Message):
 
     Attributes:
         project_id (str):
-            The project ID that the Spanner source is in
-            with a length limit of 128 characters. If not
-            specified, inherits the project ID from the
+            The project ID that contains the Spanner
+            source. Has a length limit of 128 characters. If
+            not specified, inherits the project ID from the
             parent request.
         instance_id (str):
             Required. The instance ID of the source
@@ -428,9 +428,9 @@ class BigtableSource(proto.Message):
 
     Attributes:
         project_id (str):
-            The project ID that the Bigtable source is in
-            with a length limit of 128 characters. If not
-            specified, inherits the project ID from the
+            The project ID that contains the Bigtable
+            source. Has a length limit of 128 characters. If
+            not specified, inherits the project ID from the
             parent request.
         instance_id (str):
             Required. The instance ID of the Cloud
@@ -504,9 +504,9 @@ class CloudSqlSource(proto.Message):
 
     Attributes:
         project_id (str):
-            The project ID that the Cloud SQL source is
-            in with a length limit of 128 characters. If not
-            specified, inherits the project ID from the
+            The project ID that contains the Cloud SQL
+            source. Has a length limit of 128 characters. If
+            not specified, inherits the project ID from the
             parent request.
         instance_id (str):
             Required. The Cloud SQL instance to copy the
@@ -564,9 +564,9 @@ class AlloyDbSource(proto.Message):
 
     Attributes:
         project_id (str):
-            The project ID that the AlloyDB source is in
-            with a length limit of 128 characters. If not
-            specified, inherits the project ID from the
+            The project ID that contains the AlloyDB
+            source. Has a length limit of 128 characters. If
+            not specified, inherits the project ID from the
             parent request.
         location_id (str):
             Required. The AlloyDB location to copy the
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/types/search_service.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/types/search_service.py
index 00e46651dd81..f1af3c79f881 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/types/search_service.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/types/search_service.py
@@ -1605,7 +1605,8 @@ class SearchResponse(proto.Message):
             A unique search token. This should be included in the
             [UserEvent][google.cloud.discoveryengine.v1alpha.UserEvent]
             logs resulting from this search, which enables accurate
-            attribution of search model performance.
+            attribution of search model performance. This also helps to
+            identify a request during the customer support scenarios.
         redirect_uri (str):
             The URI of a customer-defined redirect page. If redirect
             action is triggered, no search is performed, and only
@@ -1876,6 +1877,18 @@ class SummarySkippedReason(proto.Enum):
                     CEO". Only used when
                     [SearchRequest.ContentSearchSpec.SummarySpec.ignore_jail_breaking_query]
                     is set to ``true``.
+                CUSTOMER_POLICY_VIOLATION (8):
+                    The customer policy violation case.
+
+                    Google skips the summary if there is a customer
+                    policy violation detected. The policy is defined
+                    by the customer.
+                NON_SUMMARY_SEEKING_QUERY_IGNORED_V2 (9):
+                    The non-answer seeking query ignored case.
+
+                    Only used when
+                    [SearchRequest.ContentSearchSpec.SummarySpec.ignore_non_answer_seeking_query]
+                    is set to ``true``.
             """
             SUMMARY_SKIPPED_REASON_UNSPECIFIED = 0
             ADVERSARIAL_QUERY_IGNORED = 1
@@ -1885,6 +1898,8 @@ class SummarySkippedReason(proto.Enum):
             LLM_ADDON_NOT_ENABLED = 5
             NO_RELEVANT_CONTENT = 6
             JAIL_BREAKING_QUERY_IGNORED = 7
+            CUSTOMER_POLICY_VIOLATION = 8
+            NON_SUMMARY_SEEKING_QUERY_IGNORED_V2 = 9
 
         class SafetyAttributes(proto.Message):
             r"""Safety Attribute categories and their associated confidence
@@ -2169,6 +2184,9 @@ class StringConstraint(proto.Message):
                         Values of the string field. The record will
                         only be returned if the field value matches one
                         of the values specified here.
+                    query_segment (str):
+                        Identifies the keywords within the search
+                        query that match a filter.
                 """
 
                 field_name: str = proto.Field(
@@ -2179,6 +2197,10 @@ class StringConstraint(proto.Message):
                     proto.STRING,
                     number=2,
                 )
+                query_segment: str = proto.Field(
+                    proto.STRING,
+                    number=3,
+                )
 
             class NumberConstraint(proto.Message):
                 r"""Constraint expression of a number field. Example: price <
@@ -2195,6 +2217,9 @@ class NumberConstraint(proto.Message):
                     value (float):
                         The value specified in the numerical
                         constraint.
+                    query_segment (str):
+                        Identifies the keywords within the search
+                        query that match a filter.
                 """
 
                 class Comparison(proto.Enum):
@@ -2234,6 +2259,10 @@ class Comparison(proto.Enum):
                     proto.DOUBLE,
                     number=3,
                 )
+                query_segment: str = proto.Field(
+                    proto.STRING,
+                    number=4,
+                )
 
             class GeolocationConstraint(proto.Message):
                 r"""Constraint of a geolocation field.
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/types/user_event.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/types/user_event.py
index 4deac76799fd..2162001f7b3b 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/types/user_event.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1alpha/types/user_event.py
@@ -676,6 +676,9 @@ class DocumentInfo(proto.Message):
             The promotion IDs associated with this
             Document. Currently, this field is restricted to
             at most one ID.
+        joined (bool):
+            Output only. Whether the referenced Document
+            can be found in the data store.
     """
 
     id: str = proto.Field(
@@ -702,6 +705,10 @@ class DocumentInfo(proto.Message):
         proto.STRING,
         number=4,
     )
+    joined: bool = proto.Field(
+        proto.BOOL,
+        number=5,
+    )
 
 
 class PanelInfo(proto.Message):
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/__init__.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/__init__.py
index 3bde65ad26b0..c469dab86a26 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/__init__.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/__init__.py
@@ -139,6 +139,8 @@
 from .types.document import Document
 from .types.document_processing_config import DocumentProcessingConfig
 from .types.document_service import (
+    BatchGetDocumentsMetadataRequest,
+    BatchGetDocumentsMetadataResponse,
     CreateDocumentRequest,
     DeleteDocumentRequest,
     GetDocumentRequest,
@@ -214,6 +216,7 @@
     PurgeDocumentsMetadata,
     PurgeDocumentsRequest,
     PurgeDocumentsResponse,
+    PurgeErrorConfig,
     PurgeSuggestionDenyListEntriesMetadata,
     PurgeSuggestionDenyListEntriesRequest,
     PurgeSuggestionDenyListEntriesResponse,
@@ -338,6 +341,8 @@
     "BatchCreateTargetSiteMetadata",
     "BatchCreateTargetSitesRequest",
     "BatchCreateTargetSitesResponse",
+    "BatchGetDocumentsMetadataRequest",
+    "BatchGetDocumentsMetadataResponse",
     "BatchVerifyTargetSitesMetadata",
     "BatchVerifyTargetSitesRequest",
     "BatchVerifyTargetSitesResponse",
@@ -497,6 +502,7 @@
     "PurgeDocumentsMetadata",
     "PurgeDocumentsRequest",
     "PurgeDocumentsResponse",
+    "PurgeErrorConfig",
     "PurgeSuggestionDenyListEntriesMetadata",
     "PurgeSuggestionDenyListEntriesRequest",
     "PurgeSuggestionDenyListEntriesResponse",
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/gapic_metadata.json b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/gapic_metadata.json
index 8afe7dc88cd2..02ac1aa251d2 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/gapic_metadata.json
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/gapic_metadata.json
@@ -506,6 +506,11 @@
         "grpc": {
           "libraryClient": "DocumentServiceClient",
           "rpcs": {
+            "BatchGetDocumentsMetadata": {
+              "methods": [
+                "batch_get_documents_metadata"
+              ]
+            },
             "CreateDocument": {
               "methods": [
                 "create_document"
@@ -546,6 +551,11 @@
         "grpc-async": {
           "libraryClient": "DocumentServiceAsyncClient",
           "rpcs": {
+            "BatchGetDocumentsMetadata": {
+              "methods": [
+                "batch_get_documents_metadata"
+              ]
+            },
             "CreateDocument": {
               "methods": [
                 "create_document"
@@ -586,6 +596,11 @@
         "rest": {
           "libraryClient": "DocumentServiceClient",
           "rpcs": {
+            "BatchGetDocumentsMetadata": {
+              "methods": [
+                "batch_get_documents_metadata"
+              ]
+            },
             "CreateDocument": {
               "methods": [
                 "create_document"
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/gapic_version.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/gapic_version.py
index 558c8aab67c5..9e3a3e937556 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/gapic_version.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "0.0.0"  # {x-release-please-version}
+__version__ = "0.12.2"  # {x-release-please-version}
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/services/document_service/async_client.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/services/document_service/async_client.py
index 3cd99963bdee..a75f7fba7fec 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/services/document_service/async_client.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/services/document_service/async_client.py
@@ -1069,7 +1069,11 @@ async def sample_purge_documents():
                 client = discoveryengine_v1beta.DocumentServiceAsyncClient()
 
                 # Initialize request argument(s)
+                gcs_source = discoveryengine_v1beta.GcsSource()
+                gcs_source.input_uris = ['input_uris_value1', 'input_uris_value2']
+
                 request = discoveryengine_v1beta.PurgeDocumentsRequest(
+                    gcs_source=gcs_source,
                     parent="parent_value",
                     filter="filter_value",
                 )
@@ -1146,6 +1150,118 @@ async def sample_purge_documents():
         # Done; return the response.
         return response
 
+    async def batch_get_documents_metadata(
+        self,
+        request: Optional[
+            Union[document_service.BatchGetDocumentsMetadataRequest, dict]
+        ] = None,
+        *,
+        parent: Optional[str] = None,
+        retry: OptionalRetry = gapic_v1.method.DEFAULT,
+        timeout: Union[float, object] = gapic_v1.method.DEFAULT,
+        metadata: Sequence[Tuple[str, str]] = (),
+    ) -> document_service.BatchGetDocumentsMetadataResponse:
+        r"""Gets index freshness metadata for
+        [Document][google.cloud.discoveryengine.v1beta.Document]s.
+        Supported for website search only.
+
+        .. code-block:: python
+
+            # This snippet has been automatically generated and should be regarded as a
+            # code template only.
+            # It will require modifications to work:
+            # - It may require correct/in-range values for request initialization.
+            # - It may require specifying regional endpoints when creating the service
+            #   client as shown in:
+            #   https://googleapis.dev/python/google-api-core/latest/client_options.html
+            from google.cloud import discoveryengine_v1beta
+
+            async def sample_batch_get_documents_metadata():
+                # Create a client
+                client = discoveryengine_v1beta.DocumentServiceAsyncClient()
+
+                # Initialize request argument(s)
+                request = discoveryengine_v1beta.BatchGetDocumentsMetadataRequest(
+                    parent="parent_value",
+                )
+
+                # Make the request
+                response = await client.batch_get_documents_metadata(request=request)
+
+                # Handle the response
+                print(response)
+
+        Args:
+            request (Optional[Union[google.cloud.discoveryengine_v1beta.types.BatchGetDocumentsMetadataRequest, dict]]):
+                The request object. Request message for
+                [DocumentService.BatchGetDocumentsMetadata][google.cloud.discoveryengine.v1beta.DocumentService.BatchGetDocumentsMetadata]
+                method.
+            parent (:class:`str`):
+                Required. The parent branch resource name, such as
+                ``projects/{project}/locations/{location}/collections/{collection}/dataStores/{data_store}/branches/{branch}``.
+
+                This corresponds to the ``parent`` field
+                on the ``request`` instance; if ``request`` is provided, this
+                should not be set.
+            retry (google.api_core.retry_async.AsyncRetry): Designation of what errors, if any,
+                should be retried.
+            timeout (float): The timeout for this request.
+            metadata (Sequence[Tuple[str, str]]): Strings which should be
+                sent along with the request as metadata.
+
+        Returns:
+            google.cloud.discoveryengine_v1beta.types.BatchGetDocumentsMetadataResponse:
+                Response message for
+                   [DocumentService.BatchGetDocumentsMetadata][google.cloud.discoveryengine.v1beta.DocumentService.BatchGetDocumentsMetadata]
+                   method.
+
+        """
+        # Create or coerce a protobuf request object.
+        # - Quick check: If we got a request object, we should *not* have
+        #   gotten any keyword arguments that map to the request.
+        has_flattened_params = any([parent])
+        if request is not None and has_flattened_params:
+            raise ValueError(
+                "If the `request` argument is set, then none of "
+                "the individual field arguments should be set."
+            )
+
+        # - Use the request object if provided (there's no risk of modifying the input as
+        #   there are no flattened fields), or create one.
+        if not isinstance(request, document_service.BatchGetDocumentsMetadataRequest):
+            request = document_service.BatchGetDocumentsMetadataRequest(request)
+
+        # If we have keyword arguments corresponding to fields on the
+        # request, apply these.
+        if parent is not None:
+            request.parent = parent
+
+        # Wrap the RPC method; this adds retry and timeout information,
+        # and friendly error handling.
+        rpc = self._client._transport._wrapped_methods[
+            self._client._transport.batch_get_documents_metadata
+        ]
+
+        # Certain fields should be provided within the metadata header;
+        # add these here.
+        metadata = tuple(metadata) + (
+            gapic_v1.routing_header.to_grpc_metadata((("parent", request.parent),)),
+        )
+
+        # Validate the universe domain.
+        self._client._validate_universe_domain()
+
+        # Send the request.
+        response = await rpc(
+            request,
+            retry=retry,
+            timeout=timeout,
+            metadata=metadata,
+        )
+
+        # Done; return the response.
+        return response
+
     async def list_operations(
         self,
         request: Optional[operations_pb2.ListOperationsRequest] = None,
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/services/document_service/client.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/services/document_service/client.py
index 4dbf8a833298..696861d2050d 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/services/document_service/client.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/services/document_service/client.py
@@ -1523,7 +1523,11 @@ def sample_purge_documents():
                 client = discoveryengine_v1beta.DocumentServiceClient()
 
                 # Initialize request argument(s)
+                gcs_source = discoveryengine_v1beta.GcsSource()
+                gcs_source.input_uris = ['input_uris_value1', 'input_uris_value2']
+
                 request = discoveryengine_v1beta.PurgeDocumentsRequest(
+                    gcs_source=gcs_source,
                     parent="parent_value",
                     filter="filter_value",
                 )
@@ -1598,6 +1602,117 @@ def sample_purge_documents():
         # Done; return the response.
         return response
 
+    def batch_get_documents_metadata(
+        self,
+        request: Optional[
+            Union[document_service.BatchGetDocumentsMetadataRequest, dict]
+        ] = None,
+        *,
+        parent: Optional[str] = None,
+        retry: OptionalRetry = gapic_v1.method.DEFAULT,
+        timeout: Union[float, object] = gapic_v1.method.DEFAULT,
+        metadata: Sequence[Tuple[str, str]] = (),
+    ) -> document_service.BatchGetDocumentsMetadataResponse:
+        r"""Gets index freshness metadata for
+        [Document][google.cloud.discoveryengine.v1beta.Document]s.
+        Supported for website search only.
+
+        .. code-block:: python
+
+            # This snippet has been automatically generated and should be regarded as a
+            # code template only.
+            # It will require modifications to work:
+            # - It may require correct/in-range values for request initialization.
+            # - It may require specifying regional endpoints when creating the service
+            #   client as shown in:
+            #   https://googleapis.dev/python/google-api-core/latest/client_options.html
+            from google.cloud import discoveryengine_v1beta
+
+            def sample_batch_get_documents_metadata():
+                # Create a client
+                client = discoveryengine_v1beta.DocumentServiceClient()
+
+                # Initialize request argument(s)
+                request = discoveryengine_v1beta.BatchGetDocumentsMetadataRequest(
+                    parent="parent_value",
+                )
+
+                # Make the request
+                response = client.batch_get_documents_metadata(request=request)
+
+                # Handle the response
+                print(response)
+
+        Args:
+            request (Union[google.cloud.discoveryengine_v1beta.types.BatchGetDocumentsMetadataRequest, dict]):
+                The request object. Request message for
+                [DocumentService.BatchGetDocumentsMetadata][google.cloud.discoveryengine.v1beta.DocumentService.BatchGetDocumentsMetadata]
+                method.
+            parent (str):
+                Required. The parent branch resource name, such as
+                ``projects/{project}/locations/{location}/collections/{collection}/dataStores/{data_store}/branches/{branch}``.
+
+                This corresponds to the ``parent`` field
+                on the ``request`` instance; if ``request`` is provided, this
+                should not be set.
+            retry (google.api_core.retry.Retry): Designation of what errors, if any,
+                should be retried.
+            timeout (float): The timeout for this request.
+            metadata (Sequence[Tuple[str, str]]): Strings which should be
+                sent along with the request as metadata.
+
+        Returns:
+            google.cloud.discoveryengine_v1beta.types.BatchGetDocumentsMetadataResponse:
+                Response message for
+                   [DocumentService.BatchGetDocumentsMetadata][google.cloud.discoveryengine.v1beta.DocumentService.BatchGetDocumentsMetadata]
+                   method.
+
+        """
+        # Create or coerce a protobuf request object.
+        # - Quick check: If we got a request object, we should *not* have
+        #   gotten any keyword arguments that map to the request.
+        has_flattened_params = any([parent])
+        if request is not None and has_flattened_params:
+            raise ValueError(
+                "If the `request` argument is set, then none of "
+                "the individual field arguments should be set."
+            )
+
+        # - Use the request object if provided (there's no risk of modifying the input as
+        #   there are no flattened fields), or create one.
+        if not isinstance(request, document_service.BatchGetDocumentsMetadataRequest):
+            request = document_service.BatchGetDocumentsMetadataRequest(request)
+            # If we have keyword arguments corresponding to fields on the
+            # request, apply these.
+            if parent is not None:
+                request.parent = parent
+
+        # Wrap the RPC method; this adds retry and timeout information,
+        # and friendly error handling.
+        rpc = self._transport._wrapped_methods[
+            self._transport.batch_get_documents_metadata
+        ]
+
+        # Certain fields should be provided within the metadata header;
+        # add these here.
+        metadata = tuple(metadata) + (
+            gapic_v1.routing_header.to_grpc_metadata((("parent", request.parent),)),
+        )
+
+        # Validate the universe domain.
+        self._validate_universe_domain()
+
+        # Send the request.
+        response = rpc(
+            request,
+            retry=retry,
+            timeout=timeout,
+            metadata=metadata,
+        )
+
+        # Done; return the response.
+        return response
+
     def __enter__(self) -> "DocumentServiceClient":
         return self
 
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/services/document_service/transports/base.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/services/document_service/transports/base.py
index 6491783a2c52..8cb10eba46cf 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/services/document_service/transports/base.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/services/document_service/transports/base.py
@@ -181,6 +181,11 @@ def _prep_wrapped_messages(self, client_info):
                 default_timeout=None,
                 client_info=client_info,
             ),
+            self.batch_get_documents_metadata: gapic_v1.method.wrap_method(
+                self.batch_get_documents_metadata,
+                default_timeout=None,
+                client_info=client_info,
+            ),
         }
 
     def close(self):
@@ -263,6 +268,18 @@ def purge_documents(
     ]:
         raise NotImplementedError()
 
+    @property
+    def batch_get_documents_metadata(
+        self,
+    ) -> Callable[
+        [document_service.BatchGetDocumentsMetadataRequest],
+        Union[
+            document_service.BatchGetDocumentsMetadataResponse,
+            Awaitable[document_service.BatchGetDocumentsMetadataResponse],
+        ],
+    ]:
+        raise NotImplementedError()
+
     @property
     def list_operations(
         self,
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/services/document_service/transports/grpc.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/services/document_service/transports/grpc.py
index 97a0a6923af9..5d1d8749c5d0 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/services/document_service/transports/grpc.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/services/document_service/transports/grpc.py
@@ -473,6 +473,37 @@ def purge_documents(
             )
         return self._stubs["purge_documents"]
 
+    @property
+    def batch_get_documents_metadata(
+        self,
+    ) -> Callable[
+        [document_service.BatchGetDocumentsMetadataRequest],
+        document_service.BatchGetDocumentsMetadataResponse,
+    ]:
+        r"""Return a callable for the batch get documents metadata method over gRPC.
+
+        Gets index freshness metadata for
+        [Document][google.cloud.discoveryengine.v1beta.Document]s.
+        Supported for website search only.
+
+        Returns:
+            Callable[[~.BatchGetDocumentsMetadataRequest],
+                    ~.BatchGetDocumentsMetadataResponse]:
+                A function that, when called, will call the underlying RPC
+                on the server.
+        """
+        # Generate a "stub function" on-the-fly which will actually make
+        # the request.
+        # gRPC handles serialization and deserialization, so we just need
+        # to pass in the functions for each.
+        if "batch_get_documents_metadata" not in self._stubs:
+            self._stubs["batch_get_documents_metadata"] = self.grpc_channel.unary_unary(
+                "/google.cloud.discoveryengine.v1beta.DocumentService/BatchGetDocumentsMetadata",
+                request_serializer=document_service.BatchGetDocumentsMetadataRequest.serialize,
+                response_deserializer=document_service.BatchGetDocumentsMetadataResponse.deserialize,
+            )
+        return self._stubs["batch_get_documents_metadata"]
+
     def close(self):
         self.grpc_channel.close()
 
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/services/document_service/transports/grpc_asyncio.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/services/document_service/transports/grpc_asyncio.py
index d8dc444b89d1..cebef2f02dd5 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/services/document_service/transports/grpc_asyncio.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/services/document_service/transports/grpc_asyncio.py
@@ -488,6 +488,37 @@ def purge_documents(
             )
         return self._stubs["purge_documents"]
 
+    @property
+    def batch_get_documents_metadata(
+        self,
+    ) -> Callable[
+        [document_service.BatchGetDocumentsMetadataRequest],
+        Awaitable[document_service.BatchGetDocumentsMetadataResponse],
+    ]:
+        r"""Return a callable for the batch get documents metadata method over gRPC.
+
+        Gets index freshness metadata for
+        [Document][google.cloud.discoveryengine.v1beta.Document]s.
+        Supported for website search only.
+
+        Returns:
+            Callable[[~.BatchGetDocumentsMetadataRequest],
+                    Awaitable[~.BatchGetDocumentsMetadataResponse]]:
+                A function that, when called, will call the underlying RPC
+                on the server.
+        """
+        # Generate a "stub function" on-the-fly which will actually make
+        # the request.
+        # gRPC handles serialization and deserialization, so we just need
+        # to pass in the functions for each.
+        if "batch_get_documents_metadata" not in self._stubs:
+            self._stubs["batch_get_documents_metadata"] = self.grpc_channel.unary_unary(
+                "/google.cloud.discoveryengine.v1beta.DocumentService/BatchGetDocumentsMetadata",
+                request_serializer=document_service.BatchGetDocumentsMetadataRequest.serialize,
+                response_deserializer=document_service.BatchGetDocumentsMetadataResponse.deserialize,
+            )
+        return self._stubs["batch_get_documents_metadata"]
+
     def _prep_wrapped_messages(self, client_info):
         """Precompute the wrapped methods, overriding the base class method to use async wrappers."""
         self._wrapped_methods = {
@@ -535,6 +566,11 @@ def _prep_wrapped_messages(self, client_info):
                 default_timeout=None,
                 client_info=client_info,
             ),
+            self.batch_get_documents_metadata: gapic_v1.method_async.wrap_method(
+                self.batch_get_documents_metadata,
+                default_timeout=None,
+                client_info=client_info,
+            ),
         }
 
     def close(self):
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/services/document_service/transports/rest.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/services/document_service/transports/rest.py
index db93f79c1cf2..2014752b11ae 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/services/document_service/transports/rest.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/services/document_service/transports/rest.py
@@ -79,6 +79,14 @@ class DocumentServiceRestInterceptor:
 
     .. code-block:: python
         class MyCustomDocumentServiceInterceptor(DocumentServiceRestInterceptor):
+            def pre_batch_get_documents_metadata(self, request, metadata):
+                logging.log(f"Received request: {request}")
+                return request, metadata
+
+            def post_batch_get_documents_metadata(self, response):
+                logging.log(f"Received response: {response}")
+                return response
+
             def pre_create_document(self, request, metadata):
                 logging.log(f"Received request: {request}")
                 return request, metadata
@@ -137,6 +145,31 @@ def post_update_document(self, response):
 
     """
 
+    def pre_batch_get_documents_metadata(
+        self,
+        request: document_service.BatchGetDocumentsMetadataRequest,
+        metadata: Sequence[Tuple[str, str]],
+    ) -> Tuple[
+        document_service.BatchGetDocumentsMetadataRequest, Sequence[Tuple[str, str]]
+    ]:
+        """Pre-rpc interceptor for batch_get_documents_metadata
+
+        Override in a subclass to manipulate the request or metadata
+        before they are sent to the DocumentService server.
+        """
+        return request, metadata
+
+    def post_batch_get_documents_metadata(
+        self, response: document_service.BatchGetDocumentsMetadataResponse
+    ) -> document_service.BatchGetDocumentsMetadataResponse:
+        """Post-rpc interceptor for batch_get_documents_metadata
+
+        Override in a subclass to manipulate the response
+        after it is returned by the DocumentService server but before
+        it is returned to user code.
+        """
+        return response
+
     def pre_create_document(
         self,
         request: document_service.CreateDocumentRequest,
@@ -616,6 +649,105 @@ def operations_client(self) -> operations_v1.AbstractOperationsClient:
         # Return the client from cache.
         return self._operations_client
 
+    class _BatchGetDocumentsMetadata(DocumentServiceRestStub):
+        def __hash__(self):
+            return hash("BatchGetDocumentsMetadata")
+
+        __REQUIRED_FIELDS_DEFAULT_VALUES: Dict[str, Any] = {
+            "matcher": {},
+        }
+
+        @classmethod
+        def _get_unset_required_fields(cls, message_dict):
+            return {
+                k: v
+                for k, v in cls.__REQUIRED_FIELDS_DEFAULT_VALUES.items()
+                if k not in message_dict
+            }
+
+        def __call__(
+            self,
+            request: document_service.BatchGetDocumentsMetadataRequest,
+            *,
+            retry: OptionalRetry = gapic_v1.method.DEFAULT,
+            timeout: Optional[float] = None,
+            metadata: Sequence[Tuple[str, str]] = (),
+        ) -> document_service.BatchGetDocumentsMetadataResponse:
+            r"""Call the batch get documents
+            metadata method over HTTP.
+
+                Args:
+                    request (~.document_service.BatchGetDocumentsMetadataRequest):
+                        The request object. Request message for
+                    [DocumentService.BatchGetDocumentsMetadata][google.cloud.discoveryengine.v1beta.DocumentService.BatchGetDocumentsMetadata]
+                    method.
+                    retry (google.api_core.retry.Retry): Designation of what errors, if any,
+                        should be retried.
+                    timeout (float): The timeout for this request.
+                    metadata (Sequence[Tuple[str, str]]): Strings which should be
+                        sent along with the request as metadata.
+
+                Returns:
+                    ~.document_service.BatchGetDocumentsMetadataResponse:
+                        Response message for
+                    [DocumentService.BatchGetDocumentsMetadata][google.cloud.discoveryengine.v1beta.DocumentService.BatchGetDocumentsMetadata]
+                    method.
+
+            """
+
+            http_options: List[Dict[str, str]] = [
+                {
+                    "method": "get",
+                    "uri": "/v1beta/{parent=projects/*/locations/*/dataStores/*/branches/*}/batchGetDocumentsMetadata",
+                },
+                {
+                    "method": "get",
+                    "uri": "/v1beta/{parent=projects/*/locations/*/collections/*/dataStores/*/branches/*}/batchGetDocumentsMetadata",
+                },
+            ]
+            request, metadata = self._interceptor.pre_batch_get_documents_metadata(
+                request, metadata
+            )
+            pb_request = document_service.BatchGetDocumentsMetadataRequest.pb(request)
+            transcoded_request = path_template.transcode(http_options, pb_request)
+
+            uri = transcoded_request["uri"]
+            method = transcoded_request["method"]
+
+            # Jsonify the query params
+            query_params = json.loads(
+                json_format.MessageToJson(
+                    transcoded_request["query_params"],
+                    use_integers_for_enums=True,
+                )
+            )
+            query_params.update(self._get_unset_required_fields(query_params))
+
+            query_params["$alt"] = "json;enum-encoding=int"
+
+            # Send the request
+            headers = dict(metadata)
+            headers["Content-Type"] = "application/json"
+            response = getattr(self._session, method)(
+                "{host}{uri}".format(host=self._host, uri=uri),
+                timeout=timeout,
+                headers=headers,
+                params=rest_helpers.flatten_query_params(query_params, strict=True),
+            )
+
+            # In case of error, raise the appropriate core_exceptions.GoogleAPICallError exception
+            # subclass.
+            if response.status_code >= 400:
+                raise core_exceptions.from_http_response(response)
+
+            # Return the response
+            resp = document_service.BatchGetDocumentsMetadataResponse()
+            pb_resp = document_service.BatchGetDocumentsMetadataResponse.pb(resp)
+
+            json_format.Parse(response.content, pb_resp, ignore_unknown_fields=True)
+            resp = self._interceptor.post_batch_get_documents_metadata(resp)
+            return resp
+
     class _CreateDocument(DocumentServiceRestStub):
         def __hash__(self):
             return hash("CreateDocument")
@@ -1289,6 +1421,17 @@ def __call__(
             resp = self._interceptor.post_update_document(resp)
             return resp
 
+    @property
+    def batch_get_documents_metadata(
+        self,
+    ) -> Callable[
+        [document_service.BatchGetDocumentsMetadataRequest],
+        document_service.BatchGetDocumentsMetadataResponse,
+    ]:
+        # The return type is fine, but mypy isn't sophisticated enough to determine what's going on here.
+        # In C++ this would require a dynamic_cast
+        return self._BatchGetDocumentsMetadata(self._session, self._host, self._interceptor)  # type: ignore
+
     @property
     def create_document(
         self,
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/__init__.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/__init__.py
index 1392c0e5f3a6..cc7c07b55354 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/__init__.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/__init__.py
@@ -79,6 +79,8 @@
 from .document import Document
 from .document_processing_config import DocumentProcessingConfig
 from .document_service import (
+    BatchGetDocumentsMetadataRequest,
+    BatchGetDocumentsMetadataResponse,
     CreateDocumentRequest,
     DeleteDocumentRequest,
     GetDocumentRequest,
@@ -154,6 +156,7 @@
     PurgeDocumentsMetadata,
     PurgeDocumentsRequest,
     PurgeDocumentsResponse,
+    PurgeErrorConfig,
     PurgeSuggestionDenyListEntriesMetadata,
     PurgeSuggestionDenyListEntriesRequest,
     PurgeSuggestionDenyListEntriesResponse,
@@ -311,6 +314,8 @@
     "UpdateDataStoreRequest",
     "Document",
     "DocumentProcessingConfig",
+    "BatchGetDocumentsMetadataRequest",
+    "BatchGetDocumentsMetadataResponse",
     "CreateDocumentRequest",
     "DeleteDocumentRequest",
     "GetDocumentRequest",
@@ -379,6 +384,7 @@
     "PurgeDocumentsMetadata",
     "PurgeDocumentsRequest",
     "PurgeDocumentsResponse",
+    "PurgeErrorConfig",
     "PurgeSuggestionDenyListEntriesMetadata",
     "PurgeSuggestionDenyListEntriesRequest",
     "PurgeSuggestionDenyListEntriesResponse",
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/answer.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/answer.py
index 57d56b1b142f..1347bf5c6e59 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/answer.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/answer.py
@@ -105,6 +105,18 @@ class AnswerSkippedReason(proto.Enum):
 
                 Google skips the answer if there is no relevant
                 content in the retrieved search results.
+            JAIL_BREAKING_QUERY_IGNORED (6):
+                The jail-breaking query ignored case.
+
+                For example, "Reply in the tone of a competing
+                company's CEO". Google skips the answer if the
+                query is classified as a jail-breaking query.
+            CUSTOMER_POLICY_VIOLATION (7):
+                The customer policy violation case.
+
+                Google skips the summary if there is a customer
+                policy violation detected. The policy is defined
+                by the customer.
         """
         ANSWER_SKIPPED_REASON_UNSPECIFIED = 0
         ADVERSARIAL_QUERY_IGNORED = 1
@@ -112,6 +124,8 @@ class AnswerSkippedReason(proto.Enum):
         OUT_OF_DOMAIN_QUERY_IGNORED = 3
         POTENTIAL_POLICY_VIOLATION = 4
         NO_RELEVANT_CONTENT = 5
+        JAIL_BREAKING_QUERY_IGNORED = 6
+        CUSTOMER_POLICY_VIOLATION = 7
 
     class Citation(proto.Message):
         r"""Citation info for a segment.
@@ -171,6 +185,10 @@ class Reference(proto.Message):
             chunk_info (google.cloud.discoveryengine_v1beta.types.Answer.Reference.ChunkInfo):
                 Chunk information.
 
+                This field is a member of `oneof`_ ``content``.
+            structured_document_info (google.cloud.discoveryengine_v1beta.types.Answer.Reference.StructuredDocumentInfo):
+                Structured document information.
+
                 This field is a member of `oneof`_ ``content``.
         """
 
@@ -196,11 +214,22 @@ class UnstructuredDocumentInfo(proto.Message):
             class ChunkContent(proto.Message):
                 r"""Chunk content.
 
+                .. _oneof: https://proto-plus-python.readthedocs.io/en/stable/fields.html#oneofs-mutually-exclusive-fields
+
                 Attributes:
                     content (str):
                         Chunk textual content.
                     page_identifier (str):
                         Page identifier.
+                    relevance_score (float):
+                        The relevance of the chunk for a given query.
+                        Values range from 0.0 (completely irrelevant) to
+                        1.0 (completely relevant). This value is for
+                        informational purpose only. It may change for
+                        the same query and chunk at any time due to a
+                        model retraining or change in implementation.
+
+                        This field is a member of `oneof`_ ``_relevance_score``.
                 """
 
                 content: str = proto.Field(
@@ -211,6 +240,11 @@ class ChunkContent(proto.Message):
                     proto.STRING,
                     number=2,
                 )
+                relevance_score: float = proto.Field(
+                    proto.FLOAT,
+                    number=3,
+                    optional=True,
+                )
 
             document: str = proto.Field(
                 proto.STRING,
@@ -248,7 +282,12 @@ class ChunkInfo(proto.Message):
                 content (str):
                     Chunk textual content.
                 relevance_score (float):
-                    Relevance score.
+                    The relevance of the chunk for a given query.
+                    Values range from 0.0 (completely irrelevant) to
+                    1.0 (completely relevant). This value is for
+                    informational purpose only. It may change for
+                    the same query and chunk at any time due to a
+                    model retraining or change in implementation.
 
                     This field is a member of `oneof`_ ``_relevance_score``.
                 document_metadata (google.cloud.discoveryengine_v1beta.types.Answer.Reference.ChunkInfo.DocumentMetadata):
@@ -316,6 +355,26 @@ class DocumentMetadata(proto.Message):
                 )
             )
 
+        class StructuredDocumentInfo(proto.Message):
+            r"""Structured search information.
+
+            Attributes:
+                document (str):
+                    Document resource name.
+                struct_data (google.protobuf.struct_pb2.Struct):
+                    Structured search data.
+            """
+
+            document: str = proto.Field(
+                proto.STRING,
+                number=1,
+            )
+            struct_data: struct_pb2.Struct = proto.Field(
+                proto.MESSAGE,
+                number=2,
+                message=struct_pb2.Struct,
+            )
+
         unstructured_document_info: "Answer.Reference.UnstructuredDocumentInfo" = (
             proto.Field(
                 proto.MESSAGE,
@@ -330,6 +389,14 @@ class DocumentMetadata(proto.Message):
             oneof="content",
             message="Answer.Reference.ChunkInfo",
         )
+        structured_document_info: "Answer.Reference.StructuredDocumentInfo" = (
+            proto.Field(
+                proto.MESSAGE,
+                number=3,
+                oneof="content",
+                message="Answer.Reference.StructuredDocumentInfo",
+            )
+        )
 
     class Step(proto.Message):
         r"""Step information.
@@ -456,7 +523,12 @@ class ChunkInfo(proto.Message):
                             content (str):
                                 Chunk textual content.
                             relevance_score (float):
-                                Relevance score.
+                                The relevance of the chunk for a given query.
+                                Values range from 0.0 (completely irrelevant) to
+                                1.0 (completely relevant). This value is for
+                                informational purpose only. It may change for
+                                the same query and chunk at any time due to a
+                                model retraining or change in implementation.
 
                                 This field is a member of `oneof`_ ``_relevance_score``.
                         """
@@ -574,10 +646,13 @@ class Type(proto.Enum):
                         Adversarial query classification type.
                     NON_ANSWER_SEEKING_QUERY (2):
                         Non-answer-seeking query classification type.
+                    JAIL_BREAKING_QUERY (3):
+                        Jail-breaking query classification type.
                 """
                 TYPE_UNSPECIFIED = 0
                 ADVERSARIAL_QUERY = 1
                 NON_ANSWER_SEEKING_QUERY = 2
+                JAIL_BREAKING_QUERY = 3
 
             type_: "Answer.QueryUnderstandingInfo.QueryClassificationInfo.Type" = (
                 proto.Field(
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/control.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/control.py
index 9fa4d299a928..f4a052314afd 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/control.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/control.py
@@ -154,7 +154,7 @@ class Control(proto.Message):
         associated_serving_config_ids (MutableSequence[str]):
             Output only. List of all
             [ServingConfig][google.cloud.discoveryengine.v1beta.ServingConfig]
-            ids this control is attached to. May take up to 10 minutes
+            IDs this control is attached to. May take up to 10 minutes
             to update after changes.
         solution_type (google.cloud.discoveryengine_v1beta.types.SolutionType):
             Required. Immutable. What solution the
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/conversational_search_service.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/conversational_search_service.py
index 9ddc57efdf78..e09b08bc0e50 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/conversational_search_service.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/conversational_search_service.py
@@ -924,10 +924,13 @@ class Type(proto.Enum):
                         Adversarial query classification type.
                     NON_ANSWER_SEEKING_QUERY (2):
                         Non-answer-seeking query classification type.
+                    JAIL_BREAKING_QUERY (3):
+                        Jail-breaking query classification type.
                 """
                 TYPE_UNSPECIFIED = 0
                 ADVERSARIAL_QUERY = 1
                 NON_ANSWER_SEEKING_QUERY = 2
+                JAIL_BREAKING_QUERY = 3
 
             types: MutableSequence[
                 "AnswerQueryRequest.QueryUnderstandingSpec.QueryClassificationSpec.Type"
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/custom_tuning_model.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/custom_tuning_model.py
index 257280080b65..d0f53427c220 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/custom_tuning_model.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/custom_tuning_model.py
@@ -74,6 +74,9 @@ class ModelState(proto.Enum):
             NO_IMPROVEMENT (6):
                 The model training finished successfully but
                 metrics did not improve.
+            INPUT_VALIDATION_FAILED (7):
+                Input data validation failed. Model training
+                didn't start.
         """
         MODEL_STATE_UNSPECIFIED = 0
         TRAINING_PAUSED = 1
@@ -82,6 +85,7 @@ class ModelState(proto.Enum):
         READY_FOR_SERVING = 4
         TRAINING_FAILED = 5
         NO_IMPROVEMENT = 6
+        INPUT_VALIDATION_FAILED = 7
 
     name: str = proto.Field(
         proto.STRING,
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/document.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/document.py
index 00619f5b456e..b09bd5a4a0f1 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/document.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/document.py
@@ -19,6 +19,7 @@
 
 from google.protobuf import struct_pb2  # type: ignore
 from google.protobuf import timestamp_pb2  # type: ignore
+from google.rpc import status_pb2  # type: ignore
 import proto  # type: ignore
 
 __protobuf__ = proto.module(
@@ -91,6 +92,14 @@ class Document(proto.Message):
 
             This field is OUTPUT_ONLY. If this field is not populated,
             it means the document has never been indexed.
+        index_status (google.cloud.discoveryengine_v1beta.types.Document.IndexStatus):
+            Output only. The index status of the document.
+
+            -  If document is indexed successfully, the index_time field
+               is populated.
+            -  Otherwise, if document is not indexed due to errors, the
+               error_samples field is populated.
+            -  Otherwise, index_status is unset.
     """
 
     class Content(proto.Message):
@@ -154,6 +163,31 @@ class Content(proto.Message):
             number=1,
         )
 
+    class IndexStatus(proto.Message):
+        r"""Index status of the document.
+
+        Attributes:
+            index_time (google.protobuf.timestamp_pb2.Timestamp):
+                The time when the document was indexed.
+                If this field is populated, it means the
+                document has been indexed.
+            error_samples (MutableSequence[google.rpc.status_pb2.Status]):
+                A sample of errors encountered while indexing
+                the document. If this field is populated, the
+                document is not indexed due to errors.
+        """
+
+        index_time: timestamp_pb2.Timestamp = proto.Field(
+            proto.MESSAGE,
+            number=1,
+            message=timestamp_pb2.Timestamp,
+        )
+        error_samples: MutableSequence[status_pb2.Status] = proto.RepeatedField(
+            proto.MESSAGE,
+            number=2,
+            message=status_pb2.Status,
+        )
+
     struct_data: struct_pb2.Struct = proto.Field(
         proto.MESSAGE,
         number=4,
@@ -196,6 +230,11 @@ class Content(proto.Message):
         number=13,
         message=timestamp_pb2.Timestamp,
     )
+    index_status: IndexStatus = proto.Field(
+        proto.MESSAGE,
+        number=15,
+        message=IndexStatus,
+    )
 
 
 __all__ = tuple(sorted(__protobuf__.manifest))
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/document_processing_config.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/document_processing_config.py
index ee06ee0d8a47..2192893da7b4 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/document_processing_config.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/document_processing_config.py
@@ -62,6 +62,8 @@ class DocumentProcessingConfig(proto.Message):
                digital parsing and layout parsing are supported.
             -  ``pptx``: Override parsing config for PPTX files, only
                digital parsing and layout parsing are supported.
+            -  ``xlsx``: Override parsing config for XLSX files, only
+               digital parsing and layout parsing are supported.
     """
 
     class ChunkingConfig(proto.Message):
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/document_service.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/document_service.py
index 52f0c0f67f71..39c4a3a68d11 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/document_service.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/document_service.py
@@ -18,6 +18,7 @@
 from typing import MutableMapping, MutableSequence
 
 from google.protobuf import field_mask_pb2  # type: ignore
+from google.protobuf import timestamp_pb2  # type: ignore
 import proto  # type: ignore
 
 from google.cloud.discoveryengine_v1beta.types import document as gcd_document
@@ -31,6 +32,8 @@
         "CreateDocumentRequest",
         "UpdateDocumentRequest",
         "DeleteDocumentRequest",
+        "BatchGetDocumentsMetadataRequest",
+        "BatchGetDocumentsMetadataResponse",
     },
 )
 
@@ -271,4 +274,174 @@ class DeleteDocumentRequest(proto.Message):
     )
 
 
+class BatchGetDocumentsMetadataRequest(proto.Message):
+    r"""Request message for
+    [DocumentService.BatchGetDocumentsMetadata][google.cloud.discoveryengine.v1beta.DocumentService.BatchGetDocumentsMetadata]
+    method.
+
+    Attributes:
+        parent (str):
+            Required. The parent branch resource name, such as
+            ``projects/{project}/locations/{location}/collections/{collection}/dataStores/{data_store}/branches/{branch}``.
+        matcher (google.cloud.discoveryengine_v1beta.types.BatchGetDocumentsMetadataRequest.Matcher):
+            Required. Matcher for the
+            [Document][google.cloud.discoveryengine.v1beta.Document]s.
+    """
+
+    class UrisMatcher(proto.Message):
+        r"""Matcher for the
+        [Document][google.cloud.discoveryengine.v1beta.Document]s by exact
+        uris.
+
+        Attributes:
+            uris (MutableSequence[str]):
+                The exact URIs to match by.
+        """
+
+        uris: MutableSequence[str] = proto.RepeatedField(
+            proto.STRING,
+            number=1,
+        )
+
+    class Matcher(proto.Message):
+        r"""Matcher for the
+        [Document][google.cloud.discoveryengine.v1beta.Document]s. Currently
+        supports matching by exact URIs.
+
+
+        .. _oneof: https://proto-plus-python.readthedocs.io/en/stable/fields.html#oneofs-mutually-exclusive-fields
+
+        Attributes:
+            uris_matcher (google.cloud.discoveryengine_v1beta.types.BatchGetDocumentsMetadataRequest.UrisMatcher):
+                Matcher by exact URIs.
+
+                This field is a member of `oneof`_ ``matcher``.
+        """
+
+        uris_matcher: "BatchGetDocumentsMetadataRequest.UrisMatcher" = proto.Field(
+            proto.MESSAGE,
+            number=1,
+            oneof="matcher",
+            message="BatchGetDocumentsMetadataRequest.UrisMatcher",
+        )
+
+    parent: str = proto.Field(
+        proto.STRING,
+        number=1,
+    )
+    matcher: Matcher = proto.Field(
+        proto.MESSAGE,
+        number=2,
+        message=Matcher,
+    )
+
+
+class BatchGetDocumentsMetadataResponse(proto.Message):
+    r"""Response message for
+    [DocumentService.BatchGetDocumentsMetadata][google.cloud.discoveryengine.v1beta.DocumentService.BatchGetDocumentsMetadata]
+    method.
+
+    Attributes:
+        documents_metadata (MutableSequence[google.cloud.discoveryengine_v1beta.types.BatchGetDocumentsMetadataResponse.DocumentMetadata]):
+            The metadata of the
+            [Document][google.cloud.discoveryengine.v1beta.Document]s.
+    """
+
+    class State(proto.Enum):
+        r"""The state of the
+        [Document][google.cloud.discoveryengine.v1beta.Document].
+
+        Values:
+            STATE_UNSPECIFIED (0):
+                Should never be set.
+            INDEXED (1):
+                The [Document][google.cloud.discoveryengine.v1beta.Document]
+                is indexed.
+            NOT_IN_TARGET_SITE (2):
+                The [Document][google.cloud.discoveryengine.v1beta.Document]
+                is not indexed because its URI is not in the
+                [TargetSite][google.cloud.discoveryengine.v1beta.TargetSite].
+            NOT_IN_INDEX (3):
+                The [Document][google.cloud.discoveryengine.v1beta.Document]
+                is not indexed.
+        """
+        STATE_UNSPECIFIED = 0
+        INDEXED = 1
+        NOT_IN_TARGET_SITE = 2
+        NOT_IN_INDEX = 3
+
+    class DocumentMetadata(proto.Message):
+        r"""The metadata of a
+        [Document][google.cloud.discoveryengine.v1beta.Document].
+
+        Attributes:
+            matcher_value (google.cloud.discoveryengine_v1beta.types.BatchGetDocumentsMetadataResponse.DocumentMetadata.MatcherValue):
+                The value of the matcher that was used to match the
+                [Document][google.cloud.discoveryengine.v1beta.Document].
+            state (google.cloud.discoveryengine_v1beta.types.BatchGetDocumentsMetadataResponse.State):
+                The state of the document.
+            last_refreshed_time (google.protobuf.timestamp_pb2.Timestamp):
+                The timestamp of the last time the
+                [Document][google.cloud.discoveryengine.v1beta.Document] was
+                last indexed.
+            data_ingestion_source (str):
+                The data ingestion source of the
+                [Document][google.cloud.discoveryengine.v1beta.Document].
+
+                Allowed values are:
+
+                -  ``batch``: Data ingested via Batch API, e.g.,
+                   ImportDocuments.
+                -  ``streaming`` Data ingested via Streaming API, e.g., FHIR
+                   streaming.
+        """
+
+        class MatcherValue(proto.Message):
+            r"""The value of the matcher that was used to match the
+            [Document][google.cloud.discoveryengine.v1beta.Document].
+
+
+            .. _oneof: https://proto-plus-python.readthedocs.io/en/stable/fields.html#oneofs-mutually-exclusive-fields
+
+            Attributes:
+                uri (str):
+                    If match by URI, the URI of the
+                    [Document][google.cloud.discoveryengine.v1beta.Document].
+
+                    This field is a member of `oneof`_ ``matcher_value``.
+            """
+
+            uri: str = proto.Field(
+                proto.STRING,
+                number=1,
+                oneof="matcher_value",
+            )
+
+        matcher_value: "BatchGetDocumentsMetadataResponse.DocumentMetadata.MatcherValue" = proto.Field(
+            proto.MESSAGE,
+            number=2,
+            message="BatchGetDocumentsMetadataResponse.DocumentMetadata.MatcherValue",
+        )
+        state: "BatchGetDocumentsMetadataResponse.State" = proto.Field(
+            proto.ENUM,
+            number=3,
+            enum="BatchGetDocumentsMetadataResponse.State",
+        )
+        last_refreshed_time: timestamp_pb2.Timestamp = proto.Field(
+            proto.MESSAGE,
+            number=4,
+            message=timestamp_pb2.Timestamp,
+        )
+        data_ingestion_source: str = proto.Field(
+            proto.STRING,
+            number=5,
+        )
+
+    documents_metadata: MutableSequence[DocumentMetadata] = proto.RepeatedField(
+        proto.MESSAGE,
+        number=1,
+        message=DocumentMetadata,
+    )
+
+
 __all__ = tuple(sorted(__protobuf__.manifest))
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/grounded_generation_service.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/grounded_generation_service.py
index 3734ca3d5c68..cbdefdb249b3 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/grounded_generation_service.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/grounded_generation_service.py
@@ -180,8 +180,9 @@ class Claim(proto.Message):
                 false. In that case, no grounding check was done for the
                 claim and therefore
                 [citation_indices][google.cloud.discoveryengine.v1beta.CheckGroundingResponse.Claim.citation_indices],
+                [anti_citation_indices][google.cloud.discoveryengine.v1beta.CheckGroundingResponse.Claim.anti_citation_indices],
                 and
-                [anti_citation_indices][google.cloud.discoveryengine.v1beta.CheckGroundingResponse.Claim.anti_citation_indices]
+                [score][google.cloud.discoveryengine.v1beta.CheckGroundingResponse.Claim.score]
                 should not be returned.
 
                 This field is a member of `oneof`_ ``_grounding_check_required``.
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/import_config.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/import_config.py
index 40e7225633b5..b4cb57eb641b 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/import_config.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/import_config.py
@@ -129,10 +129,10 @@ class BigQuerySource(proto.Message):
 
             This field is a member of `oneof`_ ``partition``.
         project_id (str):
-            The project ID (can be project # or ID) that
-            the BigQuery source is in with a length limit of
-            128 characters. If not specified, inherits the
-            project ID from the parent request.
+            The project ID or the project number that
+            contains the BigQuery source. Has a length limit
+            of 128 characters. If not specified, inherits
+            the project ID from the parent request.
         dataset_id (str):
             Required. The BigQuery data set to copy the
             data from with a length limit of 1,024
@@ -205,9 +205,9 @@ class SpannerSource(proto.Message):
 
     Attributes:
         project_id (str):
-            The project ID that the Spanner source is in
-            with a length limit of 128 characters. If not
-            specified, inherits the project ID from the
+            The project ID that contains the Spanner
+            source. Has a length limit of 128 characters. If
+            not specified, inherits the project ID from the
             parent request.
         instance_id (str):
             Required. The instance ID of the source
@@ -428,9 +428,9 @@ class BigtableSource(proto.Message):
 
     Attributes:
         project_id (str):
-            The project ID that the Bigtable source is in
-            with a length limit of 128 characters. If not
-            specified, inherits the project ID from the
+            The project ID that contains the Bigtable
+            source. Has a length limit of 128 characters. If
+            not specified, inherits the project ID from the
             parent request.
         instance_id (str):
             Required. The instance ID of the Cloud
@@ -478,6 +478,11 @@ class FhirStoreSource(proto.Message):
             characters. Can be specified if one wants to
             have the FhirStore export to a specific Cloud
             Storage directory.
+        resource_types (MutableSequence[str]):
+            The FHIR resource types to import. The resource types should
+            be a subset of all `supported FHIR resource
+            types <https://cloud.google.com/generative-ai-app-builder/docs/fhir-schema-reference#resource-level-specification>`__.
+            Default to all supported FHIR resource types if empty.
     """
 
     fhir_store: str = proto.Field(
@@ -488,6 +493,10 @@ class FhirStoreSource(proto.Message):
         proto.STRING,
         number=2,
     )
+    resource_types: MutableSequence[str] = proto.RepeatedField(
+        proto.STRING,
+        number=3,
+    )
 
 
 class CloudSqlSource(proto.Message):
@@ -495,9 +504,9 @@ class CloudSqlSource(proto.Message):
 
     Attributes:
         project_id (str):
-            The project ID that the Cloud SQL source is
-            in with a length limit of 128 characters. If not
-            specified, inherits the project ID from the
+            The project ID that contains the Cloud SQL
+            source. Has a length limit of 128 characters. If
+            not specified, inherits the project ID from the
             parent request.
         instance_id (str):
             Required. The Cloud SQL instance to copy the
@@ -555,9 +564,9 @@ class AlloyDbSource(proto.Message):
 
     Attributes:
         project_id (str):
-            The project ID that the AlloyDB source is in
-            with a length limit of 128 characters. If not
-            specified, inherits the project ID from the
+            The project ID that contains the AlloyDB
+            source. Has a length limit of 128 characters. If
+            not specified, inherits the project ID from the
             parent request.
         location_id (str):
             Required. The AlloyDB location to copy the
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/purge_config.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/purge_config.py
index 5a7d3c02f8af..829032161fdd 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/purge_config.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/purge_config.py
@@ -21,12 +21,15 @@
 from google.rpc import status_pb2  # type: ignore
 import proto  # type: ignore
 
+from google.cloud.discoveryengine_v1beta.types import import_config
+
 __protobuf__ = proto.module(
     package="google.cloud.discoveryengine.v1beta",
     manifest={
         "PurgeUserEventsRequest",
         "PurgeUserEventsResponse",
         "PurgeUserEventsMetadata",
+        "PurgeErrorConfig",
         "PurgeDocumentsRequest",
         "PurgeDocumentsResponse",
         "PurgeDocumentsMetadata",
@@ -151,24 +154,100 @@ class PurgeUserEventsMetadata(proto.Message):
     )
 
 
+class PurgeErrorConfig(proto.Message):
+    r"""Configuration of destination for Purge related errors.
+
+    .. _oneof: https://proto-plus-python.readthedocs.io/en/stable/fields.html#oneofs-mutually-exclusive-fields
+
+    Attributes:
+        gcs_prefix (str):
+            Cloud Storage prefix for purge errors. This must be an
+            empty, existing Cloud Storage directory. Purge errors are
+            written to sharded files in this directory, one per line, as
+            a JSON-encoded ``google.rpc.Status`` message.
+
+            This field is a member of `oneof`_ ``destination``.
+    """
+
+    gcs_prefix: str = proto.Field(
+        proto.STRING,
+        number=1,
+        oneof="destination",
+    )
+
+
 class PurgeDocumentsRequest(proto.Message):
     r"""Request message for
     [DocumentService.PurgeDocuments][google.cloud.discoveryengine.v1beta.DocumentService.PurgeDocuments]
     method.
 
+    This message has `oneof`_ fields (mutually exclusive fields).
+    For each oneof, at most one member field can be set at the same time.
+    Setting any member of the oneof automatically clears all other
+    members.
+
+    .. _oneof: https://proto-plus-python.readthedocs.io/en/stable/fields.html#oneofs-mutually-exclusive-fields
+
     Attributes:
+        gcs_source (google.cloud.discoveryengine_v1beta.types.GcsSource):
+            Cloud Storage location for the input content. Supported
+            ``data_schema``:
+
+            -  ``document_id``: One valid
+               [Document.id][google.cloud.discoveryengine.v1beta.Document.id]
+               per line.
+
+            This field is a member of `oneof`_ ``source``.
+        inline_source (google.cloud.discoveryengine_v1beta.types.PurgeDocumentsRequest.InlineSource):
+            Inline source for the input content for
+            purge.
+
+            This field is a member of `oneof`_ ``source``.
         parent (str):
             Required. The parent resource name, such as
             ``projects/{project}/locations/{location}/collections/{collection}/dataStores/{data_store}/branches/{branch}``.
         filter (str):
             Required. Filter matching documents to purge. Only currently
             supported value is ``*`` (all items).
+        error_config (google.cloud.discoveryengine_v1beta.types.PurgeErrorConfig):
+            The desired location of errors incurred
+            during the purge.
         force (bool):
             Actually performs the purge. If ``force`` is set to false,
             return the expected purge count without deleting any
             documents.
     """
 
+    class InlineSource(proto.Message):
+        r"""The inline source for the input config for
+        [DocumentService.PurgeDocuments][google.cloud.discoveryengine.v1beta.DocumentService.PurgeDocuments]
+        method.
+
+        Attributes:
+            documents (MutableSequence[str]):
+                Required. A list of full resource name of documents to
+                purge. In the format
+                ``projects/*/locations/*/collections/*/dataStores/*/branches/*/documents/*``.
+                Recommended max of 100 items.
+        """
+
+        documents: MutableSequence[str] = proto.RepeatedField(
+            proto.STRING,
+            number=1,
+        )
+
+    gcs_source: import_config.GcsSource = proto.Field(
+        proto.MESSAGE,
+        number=5,
+        oneof="source",
+        message=import_config.GcsSource,
+    )
+    inline_source: InlineSource = proto.Field(
+        proto.MESSAGE,
+        number=6,
+        oneof="source",
+        message=InlineSource,
+    )
     parent: str = proto.Field(
         proto.STRING,
         number=1,
@@ -177,6 +256,11 @@ class PurgeDocumentsRequest(proto.Message):
         proto.STRING,
         number=2,
     )
+    error_config: "PurgeErrorConfig" = proto.Field(
+        proto.MESSAGE,
+        number=7,
+        message="PurgeErrorConfig",
+    )
     force: bool = proto.Field(
         proto.BOOL,
         number=3,
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/search_service.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/search_service.py
index 710ff4c38cba..8db64de1bb12 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/search_service.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/search_service.py
@@ -139,9 +139,12 @@ class SearchRequest(proto.Message):
             object. Leave it unset if ordered by relevance. ``order_by``
             expression is case-sensitive.
 
-            For more information on ordering for retail search, see
-            `Ordering <https://cloud.google.com/retail/docs/filter-and-order#order>`__
-
+            For more information on ordering the website search results,
+            see `Order web search
+            results <https://cloud.google.com/generative-ai-app-builder/docs/order-web-search-results>`__.
+            For more information on ordering the healthcare search
+            results, see `Order healthcare search
+            results <https://cloud.google.com/generative-ai-app-builder/docs/order-hc-results>`__.
             If this field is unrecognizable, an ``INVALID_ARGUMENT`` is
             returned.
         user_info (google.cloud.discoveryengine_v1beta.types.UserInfo):
@@ -329,8 +332,39 @@ class SearchRequest(proto.Message):
             Session specification.
 
             Can be used only when ``session`` is set.
+        relevance_threshold (google.cloud.discoveryengine_v1beta.types.SearchRequest.RelevanceThreshold):
+            The relevance threshold of the search
+            results.
+            Default to Google defined threshold, leveraging
+            a balance of precision and recall to deliver
+            both highly accurate results and comprehensive
+            coverage of relevant information.
     """
 
+    class RelevanceThreshold(proto.Enum):
+        r"""The relevance threshold of the search results. The higher
+        relevance threshold is, the higher relevant results are shown
+        and the less number of results are returned.
+
+        Values:
+            RELEVANCE_THRESHOLD_UNSPECIFIED (0):
+                Default value. In this case, server behavior
+                defaults to Google defined threshold.
+            LOWEST (1):
+                Lowest relevance threshold.
+            LOW (2):
+                Low relevance threshold.
+            MEDIUM (3):
+                Medium relevance threshold.
+            HIGH (4):
+                High relevance threshold.
+        """
+        RELEVANCE_THRESHOLD_UNSPECIFIED = 0
+        LOWEST = 1
+        LOW = 2
+        MEDIUM = 3
+        HIGH = 4
+
     class ImageQuery(proto.Message):
         r"""Specifies the image query input.
 
@@ -980,6 +1014,14 @@ class SummarySpec(proto.Message):
                     navigational queries. If this field is set to ``true``, we
                     skip generating summaries for non-summary seeking queries
                     and return fallback messages instead.
+                ignore_low_relevant_content (bool):
+                    Specifies whether to filter out queries that have low
+                    relevance. The default value is ``false``.
+
+                    If this field is set to ``false``, all search results are
+                    used regardless of relevance to generate answers. If set to
+                    ``true``, only queries with high relevance search results
+                    will generate answers.
                 model_prompt_spec (google.cloud.discoveryengine_v1beta.types.SearchRequest.ContentSearchSpec.SummarySpec.ModelPromptSpec):
                     If specified, the spec will be used to modify
                     the prompt provided to the LLM.
@@ -1057,6 +1099,10 @@ class ModelSpec(proto.Message):
                 proto.BOOL,
                 number=4,
             )
+            ignore_low_relevant_content: bool = proto.Field(
+                proto.BOOL,
+                number=9,
+            )
             model_prompt_spec: "SearchRequest.ContentSearchSpec.SummarySpec.ModelPromptSpec" = proto.Field(
                 proto.MESSAGE,
                 number=5,
@@ -1519,6 +1565,11 @@ class SessionSpec(proto.Message):
         number=42,
         message=SessionSpec,
     )
+    relevance_threshold: RelevanceThreshold = proto.Field(
+        proto.ENUM,
+        number=44,
+        enum=RelevanceThreshold,
+    )
 
 
 class SearchResponse(proto.Message):
@@ -1545,7 +1596,8 @@ class SearchResponse(proto.Message):
             A unique search token. This should be included in the
             [UserEvent][google.cloud.discoveryengine.v1beta.UserEvent]
             logs resulting from this search, which enables accurate
-            attribution of search model performance.
+            attribution of search model performance. This also helps to
+            identify a request during the customer support scenarios.
         redirect_uri (str):
             The URI of a customer-defined redirect page. If redirect
             action is triggered, no search is performed, and only
@@ -1585,6 +1637,9 @@ class SearchResponse(proto.Message):
             Only set if
             [SearchRequest.session][google.cloud.discoveryengine.v1beta.SearchRequest.session]
             is provided. See its description for more details.
+        one_box_results (MutableSequence[google.cloud.discoveryengine_v1beta.types.SearchResponse.OneBoxResult]):
+            A list of One Box results. There can be
+            multiple One Box results of different types.
     """
 
     class SearchResult(proto.Message):
@@ -1773,13 +1828,13 @@ class SummarySkippedReason(proto.Enum):
                 ADVERSARIAL_QUERY_IGNORED (1):
                     The adversarial query ignored case.
 
-                    Only populated when
+                    Only used when
                     [SummarySpec.ignore_adversarial_query][google.cloud.discoveryengine.v1beta.SearchRequest.ContentSearchSpec.SummarySpec.ignore_adversarial_query]
                     is set to ``true``.
                 NON_SUMMARY_SEEKING_QUERY_IGNORED (2):
                     The non-summary seeking query ignored case.
 
-                    Only populated when
+                    Only used when
                     [SummarySpec.ignore_non_summary_seeking_query][google.cloud.discoveryengine.v1beta.SearchRequest.ContentSearchSpec.SummarySpec.ignore_non_summary_seeking_query]
                     is set to ``true``.
                 OUT_OF_DOMAIN_QUERY_IGNORED (3):
@@ -1806,6 +1861,19 @@ class SummarySkippedReason(proto.Enum):
 
                     Google skips the summary if there is no relevant
                     content in the retrieved search results.
+                JAIL_BREAKING_QUERY_IGNORED (7):
+                    The jail-breaking query ignored case.
+
+                    For example, "Reply in the tone of a competing company's
+                    CEO". Only used when
+                    [SearchRequest.ContentSearchSpec.SummarySpec.ignore_jail_breaking_query]
+                    is set to ``true``.
+                CUSTOMER_POLICY_VIOLATION (8):
+                    The customer policy violation case.
+
+                    Google skips the summary if there is a customer
+                    policy violation detected. The policy is defined
+                    by the customer.
             """
             SUMMARY_SKIPPED_REASON_UNSPECIFIED = 0
             ADVERSARIAL_QUERY_IGNORED = 1
@@ -1814,6 +1882,8 @@ class SummarySkippedReason(proto.Enum):
             POTENTIAL_POLICY_VIOLATION = 4
             LLM_ADDON_NOT_ENABLED = 5
             NO_RELEVANT_CONTENT = 6
+            JAIL_BREAKING_QUERY_IGNORED = 7
+            CUSTOMER_POLICY_VIOLATION = 8
 
         class SafetyAttributes(proto.Message):
             r"""Safety Attribute categories and their associated confidence
@@ -2098,6 +2168,9 @@ class StringConstraint(proto.Message):
                         Values of the string field. The record will
                         only be returned if the field value matches one
                         of the values specified here.
+                    query_segment (str):
+                        Identifies the keywords within the search
+                        query that match a filter.
                 """
 
                 field_name: str = proto.Field(
@@ -2108,6 +2181,10 @@ class StringConstraint(proto.Message):
                     proto.STRING,
                     number=2,
                 )
+                query_segment: str = proto.Field(
+                    proto.STRING,
+                    number=3,
+                )
 
             class NumberConstraint(proto.Message):
                 r"""Constraint expression of a number field. Example: price <
@@ -2124,6 +2201,9 @@ class NumberConstraint(proto.Message):
                     value (float):
                         The value specified in the numerical
                         constraint.
+                    query_segment (str):
+                        Identifies the keywords within the search
+                        query that match a filter.
                 """
 
                 class Comparison(proto.Enum):
@@ -2163,6 +2243,10 @@ class Comparison(proto.Enum):
                     proto.DOUBLE,
                     number=3,
                 )
+                query_segment: str = proto.Field(
+                    proto.STRING,
+                    number=4,
+                )
 
             class GeolocationConstraint(proto.Message):
                 r"""Constraint of a geolocation field.
@@ -2177,6 +2261,12 @@ class GeolocationConstraint(proto.Message):
                         the input query. The proximity of the reference
                         address to the geolocation field will be used to
                         filter the results.
+                    latitude (float):
+                        The latitude of the geolocation inferred from
+                        the input query.
+                    longitude (float):
+                        The longitude of the geolocation inferred
+                        from the input query.
                     radius_in_meters (float):
                         The radius in meters around the address. The
                         record is returned if the location of the
@@ -2191,6 +2281,14 @@ class GeolocationConstraint(proto.Message):
                     proto.STRING,
                     number=2,
                 )
+                latitude: float = proto.Field(
+                    proto.DOUBLE,
+                    number=4,
+                )
+                longitude: float = proto.Field(
+                    proto.DOUBLE,
+                    number=5,
+                )
                 radius_in_meters: float = proto.Field(
                     proto.FLOAT,
                     number=3,
@@ -2344,6 +2442,48 @@ class SessionInfo(proto.Message):
             number=2,
         )
 
+    class OneBoxResult(proto.Message):
+        r"""OneBoxResult is a holder for all results of specific type
+        that we want to display in UI differently.
+
+        Attributes:
+            one_box_type (google.cloud.discoveryengine_v1beta.types.SearchResponse.OneBoxResult.OneBoxType):
+                The type of One Box result.
+            search_results (MutableSequence[google.cloud.discoveryengine_v1beta.types.SearchResponse.SearchResult]):
+                The search results for this One Box.
+        """
+
+        class OneBoxType(proto.Enum):
+            r"""The type of One Box result.
+
+            Values:
+                ONE_BOX_TYPE_UNSPECIFIED (0):
+                    Default value. Should not be used.
+                PEOPLE (1):
+                    One Box result contains people results.
+                ORGANIZATION (2):
+                    One Box result contains organization results.
+                SLACK (3):
+                    One Box result contains slack results.
+            """
+            ONE_BOX_TYPE_UNSPECIFIED = 0
+            PEOPLE = 1
+            ORGANIZATION = 2
+            SLACK = 3
+
+        one_box_type: "SearchResponse.OneBoxResult.OneBoxType" = proto.Field(
+            proto.ENUM,
+            number=1,
+            enum="SearchResponse.OneBoxResult.OneBoxType",
+        )
+        search_results: MutableSequence[
+            "SearchResponse.SearchResult"
+        ] = proto.RepeatedField(
+            proto.MESSAGE,
+            number=2,
+            message="SearchResponse.SearchResult",
+        )
+
     @property
     def raw_page(self):
         return self
@@ -2414,6 +2554,11 @@ def raw_page(self):
         number=19,
         message=SessionInfo,
     )
+    one_box_results: MutableSequence[OneBoxResult] = proto.RepeatedField(
+        proto.MESSAGE,
+        number=20,
+        message=OneBoxResult,
+    )
 
 
 __all__ = tuple(sorted(__protobuf__.manifest))
diff --git a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/user_event.py b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/user_event.py
index 23500fae2a57..5c959d423932 100644
--- a/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/user_event.py
+++ b/packages/google-cloud-discoveryengine/google/cloud/discoveryengine_v1beta/types/user_event.py
@@ -673,6 +673,9 @@ class DocumentInfo(proto.Message):
             The promotion IDs associated with this
             Document. Currently, this field is restricted to
             at most one ID.
+        joined (bool):
+            Output only. Whether the referenced Document
+            can be found in the data store.
     """
 
     id: str = proto.Field(
@@ -699,6 +702,10 @@ class DocumentInfo(proto.Message):
         proto.STRING,
         number=4,
     )
+    joined: bool = proto.Field(
+        proto.BOOL,
+        number=5,
+    )
 
 
 class PanelInfo(proto.Message):
diff --git a/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1_generated_document_service_batch_get_documents_metadata_async.py b/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1_generated_document_service_batch_get_documents_metadata_async.py
new file mode 100644
index 000000000000..ff9157e921d6
--- /dev/null
+++ b/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1_generated_document_service_batch_get_documents_metadata_async.py
@@ -0,0 +1,52 @@
+# -*- coding: utf-8 -*-
+# Copyright 2024 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# Generated code. DO NOT EDIT!
+#
+# Snippet for BatchGetDocumentsMetadata
+# NOTE: This snippet has been automatically generated for illustrative purposes only.
+# It may require modifications to work in your environment.
+
+# To install the latest published package dependency, execute the following:
+#   python3 -m pip install google-cloud-discoveryengine
+
+
+# [START discoveryengine_v1_generated_DocumentService_BatchGetDocumentsMetadata_async]
+# This snippet has been automatically generated and should be regarded as a
+# code template only.
+# It will require modifications to work:
+# - It may require correct/in-range values for request initialization.
+# - It may require specifying regional endpoints when creating the service
+#   client as shown in:
+#   https://googleapis.dev/python/google-api-core/latest/client_options.html
+from google.cloud import discoveryengine_v1
+
+
+async def sample_batch_get_documents_metadata():
+    # Create a client
+    client = discoveryengine_v1.DocumentServiceAsyncClient()
+
+    # Initialize request argument(s)
+    request = discoveryengine_v1.BatchGetDocumentsMetadataRequest(
+        parent="parent_value",
+    )
+
+    # Make the request
+    response = await client.batch_get_documents_metadata(request=request)
+
+    # Handle the response
+    print(response)
+
+# [END discoveryengine_v1_generated_DocumentService_BatchGetDocumentsMetadata_async]
diff --git a/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1_generated_document_service_batch_get_documents_metadata_sync.py b/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1_generated_document_service_batch_get_documents_metadata_sync.py
new file mode 100644
index 000000000000..84861f6a63ac
--- /dev/null
+++ b/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1_generated_document_service_batch_get_documents_metadata_sync.py
@@ -0,0 +1,52 @@
+# -*- coding: utf-8 -*-
+# Copyright 2024 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# Generated code. DO NOT EDIT!
+#
+# Snippet for BatchGetDocumentsMetadata
+# NOTE: This snippet has been automatically generated for illustrative purposes only.
+# It may require modifications to work in your environment.
+
+# To install the latest published package dependency, execute the following:
+#   python3 -m pip install google-cloud-discoveryengine
+
+
+# [START discoveryengine_v1_generated_DocumentService_BatchGetDocumentsMetadata_sync]
+# This snippet has been automatically generated and should be regarded as a
+# code template only.
+# It will require modifications to work:
+# - It may require correct/in-range values for request initialization.
+# - It may require specifying regional endpoints when creating the service
+#   client as shown in:
+#   https://googleapis.dev/python/google-api-core/latest/client_options.html
+from google.cloud import discoveryengine_v1
+
+
+def sample_batch_get_documents_metadata():
+    # Create a client
+    client = discoveryengine_v1.DocumentServiceClient()
+
+    # Initialize request argument(s)
+    request = discoveryengine_v1.BatchGetDocumentsMetadataRequest(
+        parent="parent_value",
+    )
+
+    # Make the request
+    response = client.batch_get_documents_metadata(request=request)
+
+    # Handle the response
+    print(response)
+
+# [END discoveryengine_v1_generated_DocumentService_BatchGetDocumentsMetadata_sync]
diff --git a/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1_generated_document_service_purge_documents_async.py b/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1_generated_document_service_purge_documents_async.py
index dded80300569..7e27f4affa4f 100644
--- a/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1_generated_document_service_purge_documents_async.py
+++ b/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1_generated_document_service_purge_documents_async.py
@@ -39,7 +39,11 @@ async def sample_purge_documents():
     client = discoveryengine_v1.DocumentServiceAsyncClient()
 
     # Initialize request argument(s)
+    gcs_source = discoveryengine_v1.GcsSource()
+    gcs_source.input_uris = ['input_uris_value1', 'input_uris_value2']
+
     request = discoveryengine_v1.PurgeDocumentsRequest(
+        gcs_source=gcs_source,
         parent="parent_value",
         filter="filter_value",
     )
diff --git a/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1_generated_document_service_purge_documents_sync.py b/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1_generated_document_service_purge_documents_sync.py
index d0d2932cf202..d051616047f7 100644
--- a/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1_generated_document_service_purge_documents_sync.py
+++ b/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1_generated_document_service_purge_documents_sync.py
@@ -39,7 +39,11 @@ def sample_purge_documents():
     client = discoveryengine_v1.DocumentServiceClient()
 
     # Initialize request argument(s)
+    gcs_source = discoveryengine_v1.GcsSource()
+    gcs_source.input_uris = ['input_uris_value1', 'input_uris_value2']
+
     request = discoveryengine_v1.PurgeDocumentsRequest(
+        gcs_source=gcs_source,
         parent="parent_value",
         filter="filter_value",
     )
diff --git a/packages/google-cloud-gke-connect-gateway/samples/generated_samples/connectgateway_v1beta1_generated_gateway_service_get_resource_async.py b/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1_generated_search_tuning_service_list_custom_models_async.py
similarity index 71%
rename from packages/google-cloud-gke-connect-gateway/samples/generated_samples/connectgateway_v1beta1_generated_gateway_service_get_resource_async.py
rename to packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1_generated_search_tuning_service_list_custom_models_async.py
index b11e6fe6d708..9d7a80ef3114 100644
--- a/packages/google-cloud-gke-connect-gateway/samples/generated_samples/connectgateway_v1beta1_generated_gateway_service_get_resource_async.py
+++ b/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1_generated_search_tuning_service_list_custom_models_async.py
@@ -15,15 +15,15 @@
 #
 # Generated code. DO NOT EDIT!
 #
-# Snippet for GetResource
+# Snippet for ListCustomModels
 # NOTE: This snippet has been automatically generated for illustrative purposes only.
 # It may require modifications to work in your environment.
 
 # To install the latest published package dependency, execute the following:
-#   python3 -m pip install google-cloud-gke-connect-gateway
+#   python3 -m pip install google-cloud-discoveryengine
 
 
-# [START connectgateway_v1beta1_generated_GatewayService_GetResource_async]
+# [START discoveryengine_v1_generated_SearchTuningService_ListCustomModels_async]
 # This snippet has been automatically generated and should be regarded as a
 # code template only.
 # It will require modifications to work:
@@ -31,22 +31,22 @@
 # - It may require specifying regional endpoints when creating the service
 #   client as shown in:
 #   https://googleapis.dev/python/google-api-core/latest/client_options.html
-from google.api import httpbody_pb2  # type: ignore
-from google.cloud.gkeconnect import gateway_v1beta1
+from google.cloud import discoveryengine_v1
 
 
-async def sample_get_resource():
+async def sample_list_custom_models():
     # Create a client
-    client = gateway_v1beta1.GatewayServiceAsyncClient()
+    client = discoveryengine_v1.SearchTuningServiceAsyncClient()
 
     # Initialize request argument(s)
-    request = httpbody_pb2.HttpBody(
+    request = discoveryengine_v1.ListCustomModelsRequest(
+        data_store="data_store_value",
     )
 
     # Make the request
-    response = await client.get_resource(request=request)
+    response = await client.list_custom_models(request=request)
 
     # Handle the response
     print(response)
 
-# [END connectgateway_v1beta1_generated_GatewayService_GetResource_async]
+# [END discoveryengine_v1_generated_SearchTuningService_ListCustomModels_async]
diff --git a/packages/google-cloud-gke-connect-gateway/samples/generated_samples/connectgateway_v1beta1_generated_gateway_service_delete_resource_sync.py b/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1_generated_search_tuning_service_list_custom_models_sync.py
similarity index 71%
rename from packages/google-cloud-gke-connect-gateway/samples/generated_samples/connectgateway_v1beta1_generated_gateway_service_delete_resource_sync.py
rename to packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1_generated_search_tuning_service_list_custom_models_sync.py
index 3177e20c062a..faedb982f00e 100644
--- a/packages/google-cloud-gke-connect-gateway/samples/generated_samples/connectgateway_v1beta1_generated_gateway_service_delete_resource_sync.py
+++ b/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1_generated_search_tuning_service_list_custom_models_sync.py
@@ -15,15 +15,15 @@
 #
 # Generated code. DO NOT EDIT!
 #
-# Snippet for DeleteResource
+# Snippet for ListCustomModels
 # NOTE: This snippet has been automatically generated for illustrative purposes only.
 # It may require modifications to work in your environment.
 
 # To install the latest published package dependency, execute the following:
-#   python3 -m pip install google-cloud-gke-connect-gateway
+#   python3 -m pip install google-cloud-discoveryengine
 
 
-# [START connectgateway_v1beta1_generated_GatewayService_DeleteResource_sync]
+# [START discoveryengine_v1_generated_SearchTuningService_ListCustomModels_sync]
 # This snippet has been automatically generated and should be regarded as a
 # code template only.
 # It will require modifications to work:
@@ -31,22 +31,22 @@
 # - It may require specifying regional endpoints when creating the service
 #   client as shown in:
 #   https://googleapis.dev/python/google-api-core/latest/client_options.html
-from google.api import httpbody_pb2  # type: ignore
-from google.cloud.gkeconnect import gateway_v1beta1
+from google.cloud import discoveryengine_v1
 
 
-def sample_delete_resource():
+def sample_list_custom_models():
     # Create a client
-    client = gateway_v1beta1.GatewayServiceClient()
+    client = discoveryengine_v1.SearchTuningServiceClient()
 
     # Initialize request argument(s)
-    request = httpbody_pb2.HttpBody(
+    request = discoveryengine_v1.ListCustomModelsRequest(
+        data_store="data_store_value",
     )
 
     # Make the request
-    response = client.delete_resource(request=request)
+    response = client.list_custom_models(request=request)
 
     # Handle the response
     print(response)
 
-# [END connectgateway_v1beta1_generated_GatewayService_DeleteResource_sync]
+# [END discoveryengine_v1_generated_SearchTuningService_ListCustomModels_sync]
diff --git a/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1_generated_search_tuning_service_train_custom_model_async.py b/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1_generated_search_tuning_service_train_custom_model_async.py
new file mode 100644
index 000000000000..ba97a5e74862
--- /dev/null
+++ b/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1_generated_search_tuning_service_train_custom_model_async.py
@@ -0,0 +1,56 @@
+# -*- coding: utf-8 -*-
+# Copyright 2024 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# Generated code. DO NOT EDIT!
+#
+# Snippet for TrainCustomModel
+# NOTE: This snippet has been automatically generated for illustrative purposes only.
+# It may require modifications to work in your environment.
+
+# To install the latest published package dependency, execute the following:
+#   python3 -m pip install google-cloud-discoveryengine
+
+
+# [START discoveryengine_v1_generated_SearchTuningService_TrainCustomModel_async]
+# This snippet has been automatically generated and should be regarded as a
+# code template only.
+# It will require modifications to work:
+# - It may require correct/in-range values for request initialization.
+# - It may require specifying regional endpoints when creating the service
+#   client as shown in:
+#   https://googleapis.dev/python/google-api-core/latest/client_options.html
+from google.cloud import discoveryengine_v1
+
+
+async def sample_train_custom_model():
+    # Create a client
+    client = discoveryengine_v1.SearchTuningServiceAsyncClient()
+
+    # Initialize request argument(s)
+    request = discoveryengine_v1.TrainCustomModelRequest(
+        data_store="data_store_value",
+    )
+
+    # Make the request
+    operation = client.train_custom_model(request=request)
+
+    print("Waiting for operation to complete...")
+
+    response = (await operation).result()
+
+    # Handle the response
+    print(response)
+
+# [END discoveryengine_v1_generated_SearchTuningService_TrainCustomModel_async]
diff --git a/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1_generated_search_tuning_service_train_custom_model_sync.py b/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1_generated_search_tuning_service_train_custom_model_sync.py
new file mode 100644
index 000000000000..422d9bcdcc6d
--- /dev/null
+++ b/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1_generated_search_tuning_service_train_custom_model_sync.py
@@ -0,0 +1,56 @@
+# -*- coding: utf-8 -*-
+# Copyright 2024 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# Generated code. DO NOT EDIT!
+#
+# Snippet for TrainCustomModel
+# NOTE: This snippet has been automatically generated for illustrative purposes only.
+# It may require modifications to work in your environment.
+
+# To install the latest published package dependency, execute the following:
+#   python3 -m pip install google-cloud-discoveryengine
+
+
+# [START discoveryengine_v1_generated_SearchTuningService_TrainCustomModel_sync]
+# This snippet has been automatically generated and should be regarded as a
+# code template only.
+# It will require modifications to work:
+# - It may require correct/in-range values for request initialization.
+# - It may require specifying regional endpoints when creating the service
+#   client as shown in:
+#   https://googleapis.dev/python/google-api-core/latest/client_options.html
+from google.cloud import discoveryengine_v1
+
+
+def sample_train_custom_model():
+    # Create a client
+    client = discoveryengine_v1.SearchTuningServiceClient()
+
+    # Initialize request argument(s)
+    request = discoveryengine_v1.TrainCustomModelRequest(
+        data_store="data_store_value",
+    )
+
+    # Make the request
+    operation = client.train_custom_model(request=request)
+
+    print("Waiting for operation to complete...")
+
+    response = operation.result()
+
+    # Handle the response
+    print(response)
+
+# [END discoveryengine_v1_generated_SearchTuningService_TrainCustomModel_sync]
diff --git a/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1_generated_user_event_service_purge_user_events_async.py b/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1_generated_user_event_service_purge_user_events_async.py
new file mode 100644
index 000000000000..13cc76da400c
--- /dev/null
+++ b/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1_generated_user_event_service_purge_user_events_async.py
@@ -0,0 +1,57 @@
+# -*- coding: utf-8 -*-
+# Copyright 2024 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# Generated code. DO NOT EDIT!
+#
+# Snippet for PurgeUserEvents
+# NOTE: This snippet has been automatically generated for illustrative purposes only.
+# It may require modifications to work in your environment.
+
+# To install the latest published package dependency, execute the following:
+#   python3 -m pip install google-cloud-discoveryengine
+
+
+# [START discoveryengine_v1_generated_UserEventService_PurgeUserEvents_async]
+# This snippet has been automatically generated and should be regarded as a
+# code template only.
+# It will require modifications to work:
+# - It may require correct/in-range values for request initialization.
+# - It may require specifying regional endpoints when creating the service
+#   client as shown in:
+#   https://googleapis.dev/python/google-api-core/latest/client_options.html
+from google.cloud import discoveryengine_v1
+
+
+async def sample_purge_user_events():
+    # Create a client
+    client = discoveryengine_v1.UserEventServiceAsyncClient()
+
+    # Initialize request argument(s)
+    request = discoveryengine_v1.PurgeUserEventsRequest(
+        parent="parent_value",
+        filter="filter_value",
+    )
+
+    # Make the request
+    operation = client.purge_user_events(request=request)
+
+    print("Waiting for operation to complete...")
+
+    response = (await operation).result()
+
+    # Handle the response
+    print(response)
+
+# [END discoveryengine_v1_generated_UserEventService_PurgeUserEvents_async]
diff --git a/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1_generated_user_event_service_purge_user_events_sync.py b/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1_generated_user_event_service_purge_user_events_sync.py
new file mode 100644
index 000000000000..eeab6a2ea2b3
--- /dev/null
+++ b/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1_generated_user_event_service_purge_user_events_sync.py
@@ -0,0 +1,57 @@
+# -*- coding: utf-8 -*-
+# Copyright 2024 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# Generated code. DO NOT EDIT!
+#
+# Snippet for PurgeUserEvents
+# NOTE: This snippet has been automatically generated for illustrative purposes only.
+# It may require modifications to work in your environment.
+
+# To install the latest published package dependency, execute the following:
+#   python3 -m pip install google-cloud-discoveryengine
+
+
+# [START discoveryengine_v1_generated_UserEventService_PurgeUserEvents_sync]
+# This snippet has been automatically generated and should be regarded as a
+# code template only.
+# It will require modifications to work:
+# - It may require correct/in-range values for request initialization.
+# - It may require specifying regional endpoints when creating the service
+#   client as shown in:
+#   https://googleapis.dev/python/google-api-core/latest/client_options.html
+from google.cloud import discoveryengine_v1
+
+
+def sample_purge_user_events():
+    # Create a client
+    client = discoveryengine_v1.UserEventServiceClient()
+
+    # Initialize request argument(s)
+    request = discoveryengine_v1.PurgeUserEventsRequest(
+        parent="parent_value",
+        filter="filter_value",
+    )
+
+    # Make the request
+    operation = client.purge_user_events(request=request)
+
+    print("Waiting for operation to complete...")
+
+    response = operation.result()
+
+    # Handle the response
+    print(response)
+
+# [END discoveryengine_v1_generated_UserEventService_PurgeUserEvents_sync]
diff --git a/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1alpha_generated_document_service_batch_get_documents_metadata_async.py b/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1alpha_generated_document_service_batch_get_documents_metadata_async.py
new file mode 100644
index 000000000000..8a98d99976c6
--- /dev/null
+++ b/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1alpha_generated_document_service_batch_get_documents_metadata_async.py
@@ -0,0 +1,52 @@
+# -*- coding: utf-8 -*-
+# Copyright 2024 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# Generated code. DO NOT EDIT!
+#
+# Snippet for BatchGetDocumentsMetadata
+# NOTE: This snippet has been automatically generated for illustrative purposes only.
+# It may require modifications to work in your environment.
+
+# To install the latest published package dependency, execute the following:
+#   python3 -m pip install google-cloud-discoveryengine
+
+
+# [START discoveryengine_v1alpha_generated_DocumentService_BatchGetDocumentsMetadata_async]
+# This snippet has been automatically generated and should be regarded as a
+# code template only.
+# It will require modifications to work:
+# - It may require correct/in-range values for request initialization.
+# - It may require specifying regional endpoints when creating the service
+#   client as shown in:
+#   https://googleapis.dev/python/google-api-core/latest/client_options.html
+from google.cloud import discoveryengine_v1alpha
+
+
+async def sample_batch_get_documents_metadata():
+    # Create a client
+    client = discoveryengine_v1alpha.DocumentServiceAsyncClient()
+
+    # Initialize request argument(s)
+    request = discoveryengine_v1alpha.BatchGetDocumentsMetadataRequest(
+        parent="parent_value",
+    )
+
+    # Make the request
+    response = await client.batch_get_documents_metadata(request=request)
+
+    # Handle the response
+    print(response)
+
+# [END discoveryengine_v1alpha_generated_DocumentService_BatchGetDocumentsMetadata_async]
diff --git a/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1alpha_generated_document_service_batch_get_documents_metadata_sync.py b/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1alpha_generated_document_service_batch_get_documents_metadata_sync.py
new file mode 100644
index 000000000000..972a126db36b
--- /dev/null
+++ b/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1alpha_generated_document_service_batch_get_documents_metadata_sync.py
@@ -0,0 +1,52 @@
+# -*- coding: utf-8 -*-
+# Copyright 2024 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# Generated code. DO NOT EDIT!
+#
+# Snippet for BatchGetDocumentsMetadata
+# NOTE: This snippet has been automatically generated for illustrative purposes only.
+# It may require modifications to work in your environment.
+
+# To install the latest published package dependency, execute the following:
+#   python3 -m pip install google-cloud-discoveryengine
+
+
+# [START discoveryengine_v1alpha_generated_DocumentService_BatchGetDocumentsMetadata_sync]
+# This snippet has been automatically generated and should be regarded as a
+# code template only.
+# It will require modifications to work:
+# - It may require correct/in-range values for request initialization.
+# - It may require specifying regional endpoints when creating the service
+#   client as shown in:
+#   https://googleapis.dev/python/google-api-core/latest/client_options.html
+from google.cloud import discoveryengine_v1alpha
+
+
+def sample_batch_get_documents_metadata():
+    # Create a client
+    client = discoveryengine_v1alpha.DocumentServiceClient()
+
+    # Initialize request argument(s)
+    request = discoveryengine_v1alpha.BatchGetDocumentsMetadataRequest(
+        parent="parent_value",
+    )
+
+    # Make the request
+    response = client.batch_get_documents_metadata(request=request)
+
+    # Handle the response
+    print(response)
+
+# [END discoveryengine_v1alpha_generated_DocumentService_BatchGetDocumentsMetadata_sync]
diff --git a/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1beta_generated_document_service_batch_get_documents_metadata_async.py b/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1beta_generated_document_service_batch_get_documents_metadata_async.py
new file mode 100644
index 000000000000..37e8933b085d
--- /dev/null
+++ b/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1beta_generated_document_service_batch_get_documents_metadata_async.py
@@ -0,0 +1,52 @@
+# -*- coding: utf-8 -*-
+# Copyright 2024 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# Generated code. DO NOT EDIT!
+#
+# Snippet for BatchGetDocumentsMetadata
+# NOTE: This snippet has been automatically generated for illustrative purposes only.
+# It may require modifications to work in your environment.
+
+# To install the latest published package dependency, execute the following:
+#   python3 -m pip install google-cloud-discoveryengine
+
+
+# [START discoveryengine_v1beta_generated_DocumentService_BatchGetDocumentsMetadata_async]
+# This snippet has been automatically generated and should be regarded as a
+# code template only.
+# It will require modifications to work:
+# - It may require correct/in-range values for request initialization.
+# - It may require specifying regional endpoints when creating the service
+#   client as shown in:
+#   https://googleapis.dev/python/google-api-core/latest/client_options.html
+from google.cloud import discoveryengine_v1beta
+
+
+async def sample_batch_get_documents_metadata():
+    # Create a client
+    client = discoveryengine_v1beta.DocumentServiceAsyncClient()
+
+    # Initialize request argument(s)
+    request = discoveryengine_v1beta.BatchGetDocumentsMetadataRequest(
+        parent="parent_value",
+    )
+
+    # Make the request
+    response = await client.batch_get_documents_metadata(request=request)
+
+    # Handle the response
+    print(response)
+
+# [END discoveryengine_v1beta_generated_DocumentService_BatchGetDocumentsMetadata_async]
diff --git a/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1beta_generated_document_service_batch_get_documents_metadata_sync.py b/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1beta_generated_document_service_batch_get_documents_metadata_sync.py
new file mode 100644
index 000000000000..2164801056cc
--- /dev/null
+++ b/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1beta_generated_document_service_batch_get_documents_metadata_sync.py
@@ -0,0 +1,52 @@
+# -*- coding: utf-8 -*-
+# Copyright 2024 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# Generated code. DO NOT EDIT!
+#
+# Snippet for BatchGetDocumentsMetadata
+# NOTE: This snippet has been automatically generated for illustrative purposes only.
+# It may require modifications to work in your environment.
+
+# To install the latest published package dependency, execute the following:
+#   python3 -m pip install google-cloud-discoveryengine
+
+
+# [START discoveryengine_v1beta_generated_DocumentService_BatchGetDocumentsMetadata_sync]
+# This snippet has been automatically generated and should be regarded as a
+# code template only.
+# It will require modifications to work:
+# - It may require correct/in-range values for request initialization.
+# - It may require specifying regional endpoints when creating the service
+#   client as shown in:
+#   https://googleapis.dev/python/google-api-core/latest/client_options.html
+from google.cloud import discoveryengine_v1beta
+
+
+def sample_batch_get_documents_metadata():
+    # Create a client
+    client = discoveryengine_v1beta.DocumentServiceClient()
+
+    # Initialize request argument(s)
+    request = discoveryengine_v1beta.BatchGetDocumentsMetadataRequest(
+        parent="parent_value",
+    )
+
+    # Make the request
+    response = client.batch_get_documents_metadata(request=request)
+
+    # Handle the response
+    print(response)
+
+# [END discoveryengine_v1beta_generated_DocumentService_BatchGetDocumentsMetadata_sync]
diff --git a/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1beta_generated_document_service_purge_documents_async.py b/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1beta_generated_document_service_purge_documents_async.py
index 204de42ab390..d57fdf0e3be2 100644
--- a/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1beta_generated_document_service_purge_documents_async.py
+++ b/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1beta_generated_document_service_purge_documents_async.py
@@ -39,7 +39,11 @@ async def sample_purge_documents():
     client = discoveryengine_v1beta.DocumentServiceAsyncClient()
 
     # Initialize request argument(s)
+    gcs_source = discoveryengine_v1beta.GcsSource()
+    gcs_source.input_uris = ['input_uris_value1', 'input_uris_value2']
+
     request = discoveryengine_v1beta.PurgeDocumentsRequest(
+        gcs_source=gcs_source,
         parent="parent_value",
         filter="filter_value",
     )
diff --git a/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1beta_generated_document_service_purge_documents_sync.py b/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1beta_generated_document_service_purge_documents_sync.py
index d4538c05c707..6819052d64c8 100644
--- a/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1beta_generated_document_service_purge_documents_sync.py
+++ b/packages/google-cloud-discoveryengine/samples/generated_samples/discoveryengine_v1beta_generated_document_service_purge_documents_sync.py
@@ -39,7 +39,11 @@ def sample_purge_documents():
     client = discoveryengine_v1beta.DocumentServiceClient()
 
     # Initialize request argument(s)
+    gcs_source = discoveryengine_v1beta.GcsSource()
+    gcs_source.input_uris = ['input_uris_value1', 'input_uris_value2']
+
     request = discoveryengine_v1beta.PurgeDocumentsRequest(
+        gcs_source=gcs_source,
         parent="parent_value",
         filter="filter_value",
     )
diff --git a/packages/google-cloud-discoveryengine/samples/generated_samples/snippet_metadata_google.cloud.discoveryengine.v1.json b/packages/google-cloud-discoveryengine/samples/generated_samples/snippet_metadata_google.cloud.discoveryengine.v1.json
index 69944fc7ce8a..747564c4a6ad 100644
--- a/packages/google-cloud-discoveryengine/samples/generated_samples/snippet_metadata_google.cloud.discoveryengine.v1.json
+++ b/packages/google-cloud-discoveryengine/samples/generated_samples/snippet_metadata_google.cloud.discoveryengine.v1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-discoveryengine",
-    "version": "0.1.0"
+    "version": "0.12.2"
   },
   "snippets": [
     {
@@ -4541,6 +4541,167 @@
       ],
       "title": "discoveryengine_v1_generated_data_store_service_update_data_store_sync.py"
     },
+    {
+      "canonical": true,
+      "clientMethod": {
+        "async": true,
+        "client": {
+          "fullName": "google.cloud.discoveryengine_v1.DocumentServiceAsyncClient",
+          "shortName": "DocumentServiceAsyncClient"
+        },
+        "fullName": "google.cloud.discoveryengine_v1.DocumentServiceAsyncClient.batch_get_documents_metadata",
+        "method": {
+          "fullName": "google.cloud.discoveryengine.v1.DocumentService.BatchGetDocumentsMetadata",
+          "service": {
+            "fullName": "google.cloud.discoveryengine.v1.DocumentService",
+            "shortName": "DocumentService"
+          },
+          "shortName": "BatchGetDocumentsMetadata"
+        },
+        "parameters": [
+          {
+            "name": "request",
+            "type": "google.cloud.discoveryengine_v1.types.BatchGetDocumentsMetadataRequest"
+          },
+          {
+            "name": "parent",
+            "type": "str"
+          },
+          {
+            "name": "retry",
+            "type": "google.api_core.retry.Retry"
+          },
+          {
+            "name": "timeout",
+            "type": "float"
+          },
+          {
+            "name": "metadata",
+            "type": "Sequence[Tuple[str, str]"
+          }
+        ],
+        "resultType": "google.cloud.discoveryengine_v1.types.BatchGetDocumentsMetadataResponse",
+        "shortName": "batch_get_documents_metadata"
+      },
+      "description": "Sample for BatchGetDocumentsMetadata",
+      "file": "discoveryengine_v1_generated_document_service_batch_get_documents_metadata_async.py",
+      "language": "PYTHON",
+      "origin": "API_DEFINITION",
+      "regionTag": "discoveryengine_v1_generated_DocumentService_BatchGetDocumentsMetadata_async",
+      "segments": [
+        {
+          "end": 51,
+          "start": 27,
+          "type": "FULL"
+        },
+        {
+          "end": 51,
+          "start": 27,
+          "type": "SHORT"
+        },
+        {
+          "end": 40,
+          "start": 38,
+          "type": "CLIENT_INITIALIZATION"
+        },
+        {
+          "end": 45,
+          "start": 41,
+          "type": "REQUEST_INITIALIZATION"
+        },
+        {
+          "end": 48,
+          "start": 46,
+          "type": "REQUEST_EXECUTION"
+        },
+        {
+          "end": 52,
+          "start": 49,
+          "type": "RESPONSE_HANDLING"
+        }
+      ],
+      "title": "discoveryengine_v1_generated_document_service_batch_get_documents_metadata_async.py"
+    },
+    {
+      "canonical": true,
+      "clientMethod": {
+        "client": {
+          "fullName": "google.cloud.discoveryengine_v1.DocumentServiceClient",
+          "shortName": "DocumentServiceClient"
+        },
+        "fullName": "google.cloud.discoveryengine_v1.DocumentServiceClient.batch_get_documents_metadata",
+        "method": {
+          "fullName": "google.cloud.discoveryengine.v1.DocumentService.BatchGetDocumentsMetadata",
+          "service": {
+            "fullName": "google.cloud.discoveryengine.v1.DocumentService",
+            "shortName": "DocumentService"
+          },
+          "shortName": "BatchGetDocumentsMetadata"
+        },
+        "parameters": [
+          {
+            "name": "request",
+            "type": "google.cloud.discoveryengine_v1.types.BatchGetDocumentsMetadataRequest"
+          },
+          {
+            "name": "parent",
+            "type": "str"
+          },
+          {
+            "name": "retry",
+            "type": "google.api_core.retry.Retry"
+          },
+          {
+            "name": "timeout",
+            "type": "float"
+          },
+          {
+            "name": "metadata",
+            "type": "Sequence[Tuple[str, str]"
+          }
+        ],
+        "resultType": "google.cloud.discoveryengine_v1.types.BatchGetDocumentsMetadataResponse",
+        "shortName": "batch_get_documents_metadata"
+      },
+      "description": "Sample for BatchGetDocumentsMetadata",
+      "file": "discoveryengine_v1_generated_document_service_batch_get_documents_metadata_sync.py",
+      "language": "PYTHON",
+      "origin": "API_DEFINITION",
+      "regionTag": "discoveryengine_v1_generated_DocumentService_BatchGetDocumentsMetadata_sync",
+      "segments": [
+        {
+          "end": 51,
+          "start": 27,
+          "type": "FULL"
+        },
+        {
+          "end": 51,
+          "start": 27,
+          "type": "SHORT"
+        },
+        {
+          "end": 40,
+          "start": 38,
+          "type": "CLIENT_INITIALIZATION"
+        },
+        {
+          "end": 45,
+          "start": 41,
+          "type": "REQUEST_INITIALIZATION"
+        },
+        {
+          "end": 48,
+          "start": 46,
+          "type": "REQUEST_EXECUTION"
+        },
+        {
+          "end": 52,
+          "start": 49,
+          "type": "RESPONSE_HANDLING"
+        }
+      ],
+      "title": "discoveryengine_v1_generated_document_service_batch_get_documents_metadata_sync.py"
+    },
     {
       "canonical": true,
       "clientMethod": {
@@ -5393,12 +5554,12 @@
       "regionTag": "discoveryengine_v1_generated_DocumentService_PurgeDocuments_async",
       "segments": [
         {
-          "end": 56,
+          "end": 60,
           "start": 27,
           "type": "FULL"
         },
         {
-          "end": 56,
+          "end": 60,
           "start": 27,
           "type": "SHORT"
         },
@@ -5408,18 +5569,18 @@
           "type": "CLIENT_INITIALIZATION"
         },
         {
-          "end": 46,
+          "end": 50,
           "start": 41,
           "type": "REQUEST_INITIALIZATION"
         },
         {
-          "end": 53,
-          "start": 47,
+          "end": 57,
+          "start": 51,
           "type": "REQUEST_EXECUTION"
         },
         {
-          "end": 57,
-          "start": 54,
+          "end": 61,
+          "start": 58,
           "type": "RESPONSE_HANDLING"
         }
       ],
@@ -5469,12 +5630,12 @@
       "regionTag": "discoveryengine_v1_generated_DocumentService_PurgeDocuments_sync",
       "segments": [
         {
-          "end": 56,
+          "end": 60,
           "start": 27,
           "type": "FULL"
         },
         {
-          "end": 56,
+          "end": 60,
           "start": 27,
           "type": "SHORT"
         },
@@ -5484,18 +5645,18 @@
           "type": "CLIENT_INITIALIZATION"
         },
         {
-          "end": 46,
+          "end": 50,
           "start": 41,
           "type": "REQUEST_INITIALIZATION"
         },
         {
-          "end": 53,
-          "start": 47,
+          "end": 57,
+          "start": 51,
           "type": "REQUEST_EXECUTION"
         },
         {
-          "end": 57,
-          "start": 54,
+          "end": 61,
+          "start": 58,
           "type": "RESPONSE_HANDLING"
         }
       ],
@@ -8090,22 +8251,22 @@
       "clientMethod": {
         "async": true,
         "client": {
-          "fullName": "google.cloud.discoveryengine_v1.SiteSearchEngineServiceAsyncClient",
-          "shortName": "SiteSearchEngineServiceAsyncClient"
+          "fullName": "google.cloud.discoveryengine_v1.SearchTuningServiceAsyncClient",
+          "shortName": "SearchTuningServiceAsyncClient"
         },
-        "fullName": "google.cloud.discoveryengine_v1.SiteSearchEngineServiceAsyncClient.batch_create_target_sites",
+        "fullName": "google.cloud.discoveryengine_v1.SearchTuningServiceAsyncClient.list_custom_models",
         "method": {
-          "fullName": "google.cloud.discoveryengine.v1.SiteSearchEngineService.BatchCreateTargetSites",
+          "fullName": "google.cloud.discoveryengine.v1.SearchTuningService.ListCustomModels",
           "service": {
-            "fullName": "google.cloud.discoveryengine.v1.SiteSearchEngineService",
-            "shortName": "SiteSearchEngineService"
+            "fullName": "google.cloud.discoveryengine.v1.SearchTuningService",
+            "shortName": "SearchTuningService"
           },
-          "shortName": "BatchCreateTargetSites"
+          "shortName": "ListCustomModels"
         },
         "parameters": [
           {
             "name": "request",
-            "type": "google.cloud.discoveryengine_v1.types.BatchCreateTargetSitesRequest"
+            "type": "google.cloud.discoveryengine_v1.types.ListCustomModelsRequest"
           },
           {
             "name": "retry",
@@ -8120,22 +8281,22 @@
             "type": "Sequence[Tuple[str, str]"
           }
         ],
-        "resultType": "google.api_core.operation_async.AsyncOperation",
-        "shortName": "batch_create_target_sites"
+        "resultType": "google.cloud.discoveryengine_v1.types.ListCustomModelsResponse",
+        "shortName": "list_custom_models"
       },
-      "description": "Sample for BatchCreateTargetSites",
-      "file": "discoveryengine_v1_generated_site_search_engine_service_batch_create_target_sites_async.py",
+      "description": "Sample for ListCustomModels",
+      "file": "discoveryengine_v1_generated_search_tuning_service_list_custom_models_async.py",
       "language": "PYTHON",
       "origin": "API_DEFINITION",
-      "regionTag": "discoveryengine_v1_generated_SiteSearchEngineService_BatchCreateTargetSites_async",
+      "regionTag": "discoveryengine_v1_generated_SearchTuningService_ListCustomModels_async",
       "segments": [
         {
-          "end": 60,
+          "end": 51,
           "start": 27,
           "type": "FULL"
         },
         {
-          "end": 60,
+          "end": 51,
           "start": 27,
           "type": "SHORT"
         },
@@ -8145,43 +8306,43 @@
           "type": "CLIENT_INITIALIZATION"
         },
         {
-          "end": 50,
+          "end": 45,
           "start": 41,
           "type": "REQUEST_INITIALIZATION"
         },
         {
-          "end": 57,
-          "start": 51,
+          "end": 48,
+          "start": 46,
           "type": "REQUEST_EXECUTION"
         },
         {
-          "end": 61,
-          "start": 58,
+          "end": 52,
+          "start": 49,
           "type": "RESPONSE_HANDLING"
         }
       ],
-      "title": "discoveryengine_v1_generated_site_search_engine_service_batch_create_target_sites_async.py"
+      "title": "discoveryengine_v1_generated_search_tuning_service_list_custom_models_async.py"
     },
     {
       "canonical": true,
       "clientMethod": {
         "client": {
-          "fullName": "google.cloud.discoveryengine_v1.SiteSearchEngineServiceClient",
-          "shortName": "SiteSearchEngineServiceClient"
+          "fullName": "google.cloud.discoveryengine_v1.SearchTuningServiceClient",
+          "shortName": "SearchTuningServiceClient"
         },
-        "fullName": "google.cloud.discoveryengine_v1.SiteSearchEngineServiceClient.batch_create_target_sites",
+        "fullName": "google.cloud.discoveryengine_v1.SearchTuningServiceClient.list_custom_models",
         "method": {
-          "fullName": "google.cloud.discoveryengine.v1.SiteSearchEngineService.BatchCreateTargetSites",
+          "fullName": "google.cloud.discoveryengine.v1.SearchTuningService.ListCustomModels",
           "service": {
-            "fullName": "google.cloud.discoveryengine.v1.SiteSearchEngineService",
-            "shortName": "SiteSearchEngineService"
+            "fullName": "google.cloud.discoveryengine.v1.SearchTuningService",
+            "shortName": "SearchTuningService"
           },
-          "shortName": "BatchCreateTargetSites"
+          "shortName": "ListCustomModels"
         },
         "parameters": [
           {
             "name": "request",
-            "type": "google.cloud.discoveryengine_v1.types.BatchCreateTargetSitesRequest"
+            "type": "google.cloud.discoveryengine_v1.types.ListCustomModelsRequest"
           },
           {
             "name": "retry",
@@ -8196,22 +8357,22 @@
             "type": "Sequence[Tuple[str, str]"
           }
         ],
-        "resultType": "google.api_core.operation.Operation",
-        "shortName": "batch_create_target_sites"
+        "resultType": "google.cloud.discoveryengine_v1.types.ListCustomModelsResponse",
+        "shortName": "list_custom_models"
       },
-      "description": "Sample for BatchCreateTargetSites",
-      "file": "discoveryengine_v1_generated_site_search_engine_service_batch_create_target_sites_sync.py",
+      "description": "Sample for ListCustomModels",
+      "file": "discoveryengine_v1_generated_search_tuning_service_list_custom_models_sync.py",
       "language": "PYTHON",
       "origin": "API_DEFINITION",
-      "regionTag": "discoveryengine_v1_generated_SiteSearchEngineService_BatchCreateTargetSites_sync",
+      "regionTag": "discoveryengine_v1_generated_SearchTuningService_ListCustomModels_sync",
       "segments": [
         {
-          "end": 60,
+          "end": 51,
           "start": 27,
           "type": "FULL"
         },
         {
-          "end": 60,
+          "end": 51,
           "start": 27,
           "type": "SHORT"
         },
@@ -8221,44 +8382,44 @@
           "type": "CLIENT_INITIALIZATION"
         },
         {
-          "end": 50,
+          "end": 45,
           "start": 41,
           "type": "REQUEST_INITIALIZATION"
         },
         {
-          "end": 57,
-          "start": 51,
+          "end": 48,
+          "start": 46,
           "type": "REQUEST_EXECUTION"
         },
         {
-          "end": 61,
-          "start": 58,
+          "end": 52,
+          "start": 49,
           "type": "RESPONSE_HANDLING"
         }
       ],
-      "title": "discoveryengine_v1_generated_site_search_engine_service_batch_create_target_sites_sync.py"
+      "title": "discoveryengine_v1_generated_search_tuning_service_list_custom_models_sync.py"
     },
     {
       "canonical": true,
       "clientMethod": {
         "async": true,
         "client": {
-          "fullName": "google.cloud.discoveryengine_v1.SiteSearchEngineServiceAsyncClient",
-          "shortName": "SiteSearchEngineServiceAsyncClient"
+          "fullName": "google.cloud.discoveryengine_v1.SearchTuningServiceAsyncClient",
+          "shortName": "SearchTuningServiceAsyncClient"
         },
-        "fullName": "google.cloud.discoveryengine_v1.SiteSearchEngineServiceAsyncClient.batch_verify_target_sites",
+        "fullName": "google.cloud.discoveryengine_v1.SearchTuningServiceAsyncClient.train_custom_model",
         "method": {
-          "fullName": "google.cloud.discoveryengine.v1.SiteSearchEngineService.BatchVerifyTargetSites",
+          "fullName": "google.cloud.discoveryengine.v1.SearchTuningService.TrainCustomModel",
           "service": {
-            "fullName": "google.cloud.discoveryengine.v1.SiteSearchEngineService",
-            "shortName": "SiteSearchEngineService"
+            "fullName": "google.cloud.discoveryengine.v1.SearchTuningService",
+            "shortName": "SearchTuningService"
           },
-          "shortName": "BatchVerifyTargetSites"
+          "shortName": "TrainCustomModel"
         },
         "parameters": [
           {
             "name": "request",
-            "type": "google.cloud.discoveryengine_v1.types.BatchVerifyTargetSitesRequest"
+            "type": "google.cloud.discoveryengine_v1.types.TrainCustomModelRequest"
           },
           {
             "name": "retry",
@@ -8274,13 +8435,13 @@
           }
         ],
         "resultType": "google.api_core.operation_async.AsyncOperation",
-        "shortName": "batch_verify_target_sites"
+        "shortName": "train_custom_model"
       },
-      "description": "Sample for BatchVerifyTargetSites",
-      "file": "discoveryengine_v1_generated_site_search_engine_service_batch_verify_target_sites_async.py",
+      "description": "Sample for TrainCustomModel",
+      "file": "discoveryengine_v1_generated_search_tuning_service_train_custom_model_async.py",
       "language": "PYTHON",
       "origin": "API_DEFINITION",
-      "regionTag": "discoveryengine_v1_generated_SiteSearchEngineService_BatchVerifyTargetSites_async",
+      "regionTag": "discoveryengine_v1_generated_SearchTuningService_TrainCustomModel_async",
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+      "title": "discoveryengine_v1_generated_search_tuning_service_train_custom_model_async.py"
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     {
       "canonical": true,
       "clientMethod": {
         "client": {
-          "fullName": "google.cloud.discoveryengine_v1.SiteSearchEngineServiceClient",
-          "shortName": "SiteSearchEngineServiceClient"
+          "fullName": "google.cloud.discoveryengine_v1.SearchTuningServiceClient",
+          "shortName": "SearchTuningServiceClient"
         },
-        "fullName": "google.cloud.discoveryengine_v1.SiteSearchEngineServiceClient.batch_verify_target_sites",
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         "method": {
-          "fullName": "google.cloud.discoveryengine.v1.SiteSearchEngineService.BatchVerifyTargetSites",
+          "fullName": "google.cloud.discoveryengine.v1.SearchTuningService.TrainCustomModel",
           "service": {
-            "fullName": "google.cloud.discoveryengine.v1.SiteSearchEngineService",
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+            "shortName": "SearchTuningService"
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+            "type": "google.cloud.discoveryengine_v1.types.TrainCustomModelRequest"
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@@ -8350,13 +8511,13 @@
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         "resultType": "google.api_core.operation.Operation",
-        "shortName": "batch_verify_target_sites"
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-      "description": "Sample for BatchVerifyTargetSites",
-      "file": "discoveryengine_v1_generated_site_search_engine_service_batch_verify_target_sites_sync.py",
+      "description": "Sample for TrainCustomModel",
+      "file": "discoveryengine_v1_generated_search_tuning_service_train_custom_model_sync.py",
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@@ -8389,7 +8550,7 @@
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@@ -8399,14 +8560,320 @@
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+        "resultType": "google.api_core.operation.Operation",
+        "shortName": "batch_verify_target_sites"
+      },
+      "description": "Sample for BatchVerifyTargetSites",
+      "file": "discoveryengine_v1_generated_site_search_engine_service_batch_verify_target_sites_sync.py",
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+          "start": 41,
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+          "end": 56,
+          "start": 53,
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+      ],
+      "title": "discoveryengine_v1_generated_site_search_engine_service_batch_verify_target_sites_sync.py"
+    },
+    {
+      "canonical": true,
+      "clientMethod": {
+        "async": true,
+        "client": {
+          "fullName": "google.cloud.discoveryengine_v1.SiteSearchEngineServiceAsyncClient",
+          "shortName": "SiteSearchEngineServiceAsyncClient"
+        },
+        "fullName": "google.cloud.discoveryengine_v1.SiteSearchEngineServiceAsyncClient.create_target_site",
+        "method": {
+          "fullName": "google.cloud.discoveryengine.v1.SiteSearchEngineService.CreateTargetSite",
+          "service": {
+            "fullName": "google.cloud.discoveryengine.v1.SiteSearchEngineService",
+            "shortName": "SiteSearchEngineService"
+          },
+          "shortName": "CreateTargetSite"
         },
         "parameters": [
           {
@@ -10283,6 +10750,159 @@
       ],
       "title": "discoveryengine_v1_generated_user_event_service_import_user_events_sync.py"
     },
+    {
+      "canonical": true,
+      "clientMethod": {
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+        "client": {
+          "fullName": "google.cloud.discoveryengine_v1.UserEventServiceAsyncClient",
+          "shortName": "UserEventServiceAsyncClient"
+        },
+        "fullName": "google.cloud.discoveryengine_v1.UserEventServiceAsyncClient.purge_user_events",
+        "method": {
+          "fullName": "google.cloud.discoveryengine.v1.UserEventService.PurgeUserEvents",
+          "service": {
+            "fullName": "google.cloud.discoveryengine.v1.UserEventService",
+            "shortName": "UserEventService"
+          },
+          "shortName": "PurgeUserEvents"
+        },
+        "parameters": [
+          {
+            "name": "request",
+            "type": "google.cloud.discoveryengine_v1.types.PurgeUserEventsRequest"
+          },
+          {
+            "name": "retry",
+            "type": "google.api_core.retry.Retry"
+          },
+          {
+            "name": "timeout",
+            "type": "float"
+          },
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+          }
+        ],
+        "resultType": "google.api_core.operation_async.AsyncOperation",
+        "shortName": "purge_user_events"
+      },
+      "description": "Sample for PurgeUserEvents",
+      "file": "discoveryengine_v1_generated_user_event_service_purge_user_events_async.py",
+      "language": "PYTHON",
+      "origin": "API_DEFINITION",
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diff --git a/packages/google-cloud-discoveryengine/samples/generated_samples/snippet_metadata_google.cloud.discoveryengine.v1alpha.json b/packages/google-cloud-discoveryengine/samples/generated_samples/snippet_metadata_google.cloud.discoveryengine.v1alpha.json
index 2884e903e0cf..c1a9f90dc413 100644
--- a/packages/google-cloud-discoveryengine/samples/generated_samples/snippet_metadata_google.cloud.discoveryengine.v1alpha.json
+++ b/packages/google-cloud-discoveryengine/samples/generated_samples/snippet_metadata_google.cloud.discoveryengine.v1alpha.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-discoveryengine",
-    "version": "0.1.0"
+    "version": "0.12.2"
   },
   "snippets": [
     {
@@ -5507,6 +5507,167 @@
       ],
       "title": "discoveryengine_v1alpha_generated_data_store_service_update_document_processing_config_sync.py"
     },
+    {
+      "canonical": true,
+      "clientMethod": {
+        "async": true,
+        "client": {
+          "fullName": "google.cloud.discoveryengine_v1alpha.DocumentServiceAsyncClient",
+          "shortName": "DocumentServiceAsyncClient"
+        },
+        "fullName": "google.cloud.discoveryengine_v1alpha.DocumentServiceAsyncClient.batch_get_documents_metadata",
+        "method": {
+          "fullName": "google.cloud.discoveryengine.v1alpha.DocumentService.BatchGetDocumentsMetadata",
+          "service": {
+            "fullName": "google.cloud.discoveryengine.v1alpha.DocumentService",
+            "shortName": "DocumentService"
+          },
+          "shortName": "BatchGetDocumentsMetadata"
+        },
+        "parameters": [
+          {
+            "name": "request",
+            "type": "google.cloud.discoveryengine_v1alpha.types.BatchGetDocumentsMetadataRequest"
+          },
+          {
+            "name": "parent",
+            "type": "str"
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+            "type": "google.api_core.retry.Retry"
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+        ],
+        "resultType": "google.cloud.discoveryengine_v1alpha.types.BatchGetDocumentsMetadataResponse",
+        "shortName": "batch_get_documents_metadata"
+      },
+      "description": "Sample for BatchGetDocumentsMetadata",
+      "file": "discoveryengine_v1alpha_generated_document_service_batch_get_documents_metadata_async.py",
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+      "description": "Sample for BatchGetDocumentsMetadata",
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+          "type": "SHORT"
+        },
+        {
+          "end": 40,
+          "start": 38,
+          "type": "CLIENT_INITIALIZATION"
+        },
+        {
+          "end": 45,
+          "start": 41,
+          "type": "REQUEST_INITIALIZATION"
+        },
+        {
+          "end": 48,
+          "start": 46,
+          "type": "REQUEST_EXECUTION"
+        },
+        {
+          "end": 52,
+          "start": 49,
+          "type": "RESPONSE_HANDLING"
+        }
+      ],
+      "title": "discoveryengine_v1alpha_generated_document_service_batch_get_documents_metadata_sync.py"
+    },
     {
       "canonical": true,
       "clientMethod": {
diff --git a/packages/google-cloud-discoveryengine/samples/generated_samples/snippet_metadata_google.cloud.discoveryengine.v1beta.json b/packages/google-cloud-discoveryengine/samples/generated_samples/snippet_metadata_google.cloud.discoveryengine.v1beta.json
index cff39c47dc30..6946ceb3a447 100644
--- a/packages/google-cloud-discoveryengine/samples/generated_samples/snippet_metadata_google.cloud.discoveryengine.v1beta.json
+++ b/packages/google-cloud-discoveryengine/samples/generated_samples/snippet_metadata_google.cloud.discoveryengine.v1beta.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-discoveryengine",
-    "version": "0.1.0"
+    "version": "0.12.2"
   },
   "snippets": [
     {
@@ -4541,6 +4541,167 @@
       ],
       "title": "discoveryengine_v1beta_generated_data_store_service_update_data_store_sync.py"
     },
+    {
+      "canonical": true,
+      "clientMethod": {
+        "async": true,
+        "client": {
+          "fullName": "google.cloud.discoveryengine_v1beta.DocumentServiceAsyncClient",
+          "shortName": "DocumentServiceAsyncClient"
+        },
+        "fullName": "google.cloud.discoveryengine_v1beta.DocumentServiceAsyncClient.batch_get_documents_metadata",
+        "method": {
+          "fullName": "google.cloud.discoveryengine.v1beta.DocumentService.BatchGetDocumentsMetadata",
+          "service": {
+            "fullName": "google.cloud.discoveryengine.v1beta.DocumentService",
+            "shortName": "DocumentService"
+          },
+          "shortName": "BatchGetDocumentsMetadata"
+        },
+        "parameters": [
+          {
+            "name": "request",
+            "type": "google.cloud.discoveryengine_v1beta.types.BatchGetDocumentsMetadataRequest"
+          },
+          {
+            "name": "parent",
+            "type": "str"
+          },
+          {
+            "name": "retry",
+            "type": "google.api_core.retry.Retry"
+          },
+          {
+            "name": "timeout",
+            "type": "float"
+          },
+          {
+            "name": "metadata",
+            "type": "Sequence[Tuple[str, str]"
+          }
+        ],
+        "resultType": "google.cloud.discoveryengine_v1beta.types.BatchGetDocumentsMetadataResponse",
+        "shortName": "batch_get_documents_metadata"
+      },
+      "description": "Sample for BatchGetDocumentsMetadata",
+      "file": "discoveryengine_v1beta_generated_document_service_batch_get_documents_metadata_async.py",
+      "language": "PYTHON",
+      "origin": "API_DEFINITION",
+      "regionTag": "discoveryengine_v1beta_generated_DocumentService_BatchGetDocumentsMetadata_async",
+      "segments": [
+        {
+          "end": 51,
+          "start": 27,
+          "type": "FULL"
+        },
+        {
+          "end": 51,
+          "start": 27,
+          "type": "SHORT"
+        },
+        {
+          "end": 40,
+          "start": 38,
+          "type": "CLIENT_INITIALIZATION"
+        },
+        {
+          "end": 45,
+          "start": 41,
+          "type": "REQUEST_INITIALIZATION"
+        },
+        {
+          "end": 48,
+          "start": 46,
+          "type": "REQUEST_EXECUTION"
+        },
+        {
+          "end": 52,
+          "start": 49,
+          "type": "RESPONSE_HANDLING"
+        }
+      ],
+      "title": "discoveryengine_v1beta_generated_document_service_batch_get_documents_metadata_async.py"
+    },
+    {
+      "canonical": true,
+      "clientMethod": {
+        "client": {
+          "fullName": "google.cloud.discoveryengine_v1beta.DocumentServiceClient",
+          "shortName": "DocumentServiceClient"
+        },
+        "fullName": "google.cloud.discoveryengine_v1beta.DocumentServiceClient.batch_get_documents_metadata",
+        "method": {
+          "fullName": "google.cloud.discoveryengine.v1beta.DocumentService.BatchGetDocumentsMetadata",
+          "service": {
+            "fullName": "google.cloud.discoveryengine.v1beta.DocumentService",
+            "shortName": "DocumentService"
+          },
+          "shortName": "BatchGetDocumentsMetadata"
+        },
+        "parameters": [
+          {
+            "name": "request",
+            "type": "google.cloud.discoveryengine_v1beta.types.BatchGetDocumentsMetadataRequest"
+          },
+          {
+            "name": "parent",
+            "type": "str"
+          },
+          {
+            "name": "retry",
+            "type": "google.api_core.retry.Retry"
+          },
+          {
+            "name": "timeout",
+            "type": "float"
+          },
+          {
+            "name": "metadata",
+            "type": "Sequence[Tuple[str, str]"
+          }
+        ],
+        "resultType": "google.cloud.discoveryengine_v1beta.types.BatchGetDocumentsMetadataResponse",
+        "shortName": "batch_get_documents_metadata"
+      },
+      "description": "Sample for BatchGetDocumentsMetadata",
+      "file": "discoveryengine_v1beta_generated_document_service_batch_get_documents_metadata_sync.py",
+      "language": "PYTHON",
+      "origin": "API_DEFINITION",
+      "regionTag": "discoveryengine_v1beta_generated_DocumentService_BatchGetDocumentsMetadata_sync",
+      "segments": [
+        {
+          "end": 51,
+          "start": 27,
+          "type": "FULL"
+        },
+        {
+          "end": 51,
+          "start": 27,
+          "type": "SHORT"
+        },
+        {
+          "end": 40,
+          "start": 38,
+          "type": "CLIENT_INITIALIZATION"
+        },
+        {
+          "end": 45,
+          "start": 41,
+          "type": "REQUEST_INITIALIZATION"
+        },
+        {
+          "end": 48,
+          "start": 46,
+          "type": "REQUEST_EXECUTION"
+        },
+        {
+          "end": 52,
+          "start": 49,
+          "type": "RESPONSE_HANDLING"
+        }
+      ],
+      "title": "discoveryengine_v1beta_generated_document_service_batch_get_documents_metadata_sync.py"
+    },
     {
       "canonical": true,
       "clientMethod": {
@@ -5393,12 +5554,12 @@
       "regionTag": "discoveryengine_v1beta_generated_DocumentService_PurgeDocuments_async",
       "segments": [
         {
-          "end": 56,
+          "end": 60,
           "start": 27,
           "type": "FULL"
         },
         {
-          "end": 56,
+          "end": 60,
           "start": 27,
           "type": "SHORT"
         },
@@ -5408,18 +5569,18 @@
           "type": "CLIENT_INITIALIZATION"
         },
         {
-          "end": 46,
+          "end": 50,
           "start": 41,
           "type": "REQUEST_INITIALIZATION"
         },
         {
-          "end": 53,
-          "start": 47,
+          "end": 57,
+          "start": 51,
           "type": "REQUEST_EXECUTION"
         },
         {
-          "end": 57,
-          "start": 54,
+          "end": 61,
+          "start": 58,
           "type": "RESPONSE_HANDLING"
         }
       ],
@@ -5469,12 +5630,12 @@
       "regionTag": "discoveryengine_v1beta_generated_DocumentService_PurgeDocuments_sync",
       "segments": [
         {
-          "end": 56,
+          "end": 60,
           "start": 27,
           "type": "FULL"
         },
         {
-          "end": 56,
+          "end": 60,
           "start": 27,
           "type": "SHORT"
         },
@@ -5484,18 +5645,18 @@
           "type": "CLIENT_INITIALIZATION"
         },
         {
-          "end": 46,
+          "end": 50,
           "start": 41,
           "type": "REQUEST_INITIALIZATION"
         },
         {
-          "end": 53,
-          "start": 47,
+          "end": 57,
+          "start": 51,
           "type": "REQUEST_EXECUTION"
         },
         {
-          "end": 57,
-          "start": 54,
+          "end": 61,
+          "start": 58,
           "type": "RESPONSE_HANDLING"
         }
       ],
diff --git a/packages/google-cloud-discoveryengine/scripts/fixup_discoveryengine_v1_keywords.py b/packages/google-cloud-discoveryengine/scripts/fixup_discoveryengine_v1_keywords.py
index c9797094604f..b89b5e57f538 100644
--- a/packages/google-cloud-discoveryengine/scripts/fixup_discoveryengine_v1_keywords.py
+++ b/packages/google-cloud-discoveryengine/scripts/fixup_discoveryengine_v1_keywords.py
@@ -41,6 +41,7 @@ class discoveryengineCallTransformer(cst.CSTTransformer):
     METHOD_TO_PARAMS: Dict[str, Tuple[str]] = {
         'answer_query': ('serving_config', 'query', 'session', 'safety_spec', 'related_questions_spec', 'answer_generation_spec', 'search_spec', 'query_understanding_spec', 'asynchronous_mode', 'user_pseudo_id', 'user_labels', ),
         'batch_create_target_sites': ('parent', 'requests', ),
+        'batch_get_documents_metadata': ('parent', 'matcher', ),
         'batch_verify_target_sites': ('parent', ),
         'check_grounding': ('grounding_config', 'answer_candidate', 'facts', 'grounding_spec', 'user_labels', ),
         'collect_user_event': ('parent', 'user_event', 'uri', 'ets', ),
@@ -48,7 +49,7 @@ class discoveryengineCallTransformer(cst.CSTTransformer):
         'converse_conversation': ('name', 'query', 'serving_config', 'conversation', 'safe_search', 'user_labels', 'summary_spec', 'filter', 'boost_spec', ),
         'create_control': ('parent', 'control', 'control_id', ),
         'create_conversation': ('parent', 'conversation', ),
-        'create_data_store': ('parent', 'data_store', 'data_store_id', 'create_advanced_site_search', ),
+        'create_data_store': ('parent', 'data_store', 'data_store_id', 'create_advanced_site_search', 'skip_default_schema_creation', ),
         'create_document': ('parent', 'document', 'document_id', ),
         'create_engine': ('parent', 'engine', 'engine_id', ),
         'create_schema': ('parent', 'schema', 'schema_id', ),
@@ -81,6 +82,7 @@ class discoveryengineCallTransformer(cst.CSTTransformer):
         'import_user_events': ('parent', 'inline_source', 'gcs_source', 'bigquery_source', 'error_config', ),
         'list_controls': ('parent', 'page_size', 'page_token', 'filter', ),
         'list_conversations': ('parent', 'page_size', 'page_token', 'filter', 'order_by', ),
+        'list_custom_models': ('data_store', ),
         'list_data_stores': ('parent', 'page_size', 'page_token', 'filter', ),
         'list_documents': ('parent', 'page_size', 'page_token', ),
         'list_engines': ('parent', 'page_size', 'page_token', 'filter', ),
@@ -89,12 +91,14 @@ class discoveryengineCallTransformer(cst.CSTTransformer):
         'list_target_sites': ('parent', 'page_size', 'page_token', ),
         'provision_project': ('name', 'accept_data_use_terms', 'data_use_terms_version', ),
         'purge_completion_suggestions': ('parent', ),
-        'purge_documents': ('parent', 'filter', 'force', ),
+        'purge_documents': ('parent', 'filter', 'gcs_source', 'inline_source', 'error_config', 'force', ),
         'purge_suggestion_deny_list_entries': ('parent', ),
+        'purge_user_events': ('parent', 'filter', 'force', ),
         'rank': ('ranking_config', 'records', 'model', 'top_n', 'query', 'ignore_record_details_in_response', 'user_labels', ),
         'recommend': ('serving_config', 'user_event', 'page_size', 'filter', 'validate_only', 'params', 'user_labels', ),
         'recrawl_uris': ('site_search_engine', 'uris', ),
         'search': ('serving_config', 'branch', 'query', 'image_query', 'page_size', 'page_token', 'offset', 'data_store_specs', 'filter', 'canonical_filter', 'order_by', 'user_info', 'language_code', 'facet_specs', 'boost_spec', 'params', 'query_expansion_spec', 'spell_correction_spec', 'user_pseudo_id', 'content_search_spec', 'safe_search', 'user_labels', 'search_as_you_type_spec', 'session', 'session_spec', ),
+        'train_custom_model': ('data_store', 'gcs_training_input', 'model_type', 'error_config', 'model_id', ),
         'update_control': ('control', 'update_mask', ),
         'update_conversation': ('conversation', 'update_mask', ),
         'update_data_store': ('data_store', 'update_mask', ),
diff --git a/packages/google-cloud-discoveryengine/scripts/fixup_discoveryengine_v1alpha_keywords.py b/packages/google-cloud-discoveryengine/scripts/fixup_discoveryengine_v1alpha_keywords.py
index e10372b3b1fa..d82dccd4ad51 100644
--- a/packages/google-cloud-discoveryengine/scripts/fixup_discoveryengine_v1alpha_keywords.py
+++ b/packages/google-cloud-discoveryengine/scripts/fixup_discoveryengine_v1alpha_keywords.py
@@ -41,6 +41,7 @@ class discoveryengineCallTransformer(cst.CSTTransformer):
     METHOD_TO_PARAMS: Dict[str, Tuple[str]] = {
         'answer_query': ('serving_config', 'query', 'session', 'safety_spec', 'related_questions_spec', 'answer_generation_spec', 'search_spec', 'query_understanding_spec', 'asynchronous_mode', 'user_pseudo_id', 'user_labels', ),
         'batch_create_target_sites': ('parent', 'requests', ),
+        'batch_get_documents_metadata': ('parent', 'matcher', ),
         'batch_verify_target_sites': ('parent', ),
         'check_grounding': ('grounding_config', 'answer_candidate', 'facts', 'grounding_spec', 'user_labels', ),
         'collect_user_event': ('parent', 'user_event', 'uri', 'ets', ),
diff --git a/packages/google-cloud-discoveryengine/scripts/fixup_discoveryengine_v1beta_keywords.py b/packages/google-cloud-discoveryengine/scripts/fixup_discoveryengine_v1beta_keywords.py
index 8a4765d046fe..f2f74d58b3d5 100644
--- a/packages/google-cloud-discoveryengine/scripts/fixup_discoveryengine_v1beta_keywords.py
+++ b/packages/google-cloud-discoveryengine/scripts/fixup_discoveryengine_v1beta_keywords.py
@@ -41,6 +41,7 @@ class discoveryengineCallTransformer(cst.CSTTransformer):
     METHOD_TO_PARAMS: Dict[str, Tuple[str]] = {
         'answer_query': ('serving_config', 'query', 'session', 'safety_spec', 'related_questions_spec', 'answer_generation_spec', 'search_spec', 'query_understanding_spec', 'asynchronous_mode', 'user_pseudo_id', 'user_labels', ),
         'batch_create_target_sites': ('parent', 'requests', ),
+        'batch_get_documents_metadata': ('parent', 'matcher', ),
         'batch_verify_target_sites': ('parent', ),
         'check_grounding': ('grounding_config', 'answer_candidate', 'facts', 'grounding_spec', 'user_labels', ),
         'collect_user_event': ('parent', 'user_event', 'uri', 'ets', ),
@@ -106,14 +107,14 @@ class discoveryengineCallTransformer(cst.CSTTransformer):
         'pause_engine': ('name', ),
         'provision_project': ('name', 'accept_data_use_terms', 'data_use_terms_version', ),
         'purge_completion_suggestions': ('parent', ),
-        'purge_documents': ('parent', 'filter', 'force', ),
+        'purge_documents': ('parent', 'filter', 'gcs_source', 'inline_source', 'error_config', 'force', ),
         'purge_suggestion_deny_list_entries': ('parent', ),
         'purge_user_events': ('parent', 'filter', 'force', ),
         'rank': ('ranking_config', 'records', 'model', 'top_n', 'query', 'ignore_record_details_in_response', 'user_labels', ),
         'recommend': ('serving_config', 'user_event', 'page_size', 'filter', 'validate_only', 'params', 'user_labels', ),
         'recrawl_uris': ('site_search_engine', 'uris', ),
         'resume_engine': ('name', ),
-        'search': ('serving_config', 'branch', 'query', 'image_query', 'page_size', 'page_token', 'offset', 'data_store_specs', 'filter', 'canonical_filter', 'order_by', 'user_info', 'language_code', 'region_code', 'facet_specs', 'boost_spec', 'params', 'query_expansion_spec', 'spell_correction_spec', 'user_pseudo_id', 'content_search_spec', 'embedding_spec', 'ranking_expression', 'safe_search', 'user_labels', 'natural_language_query_understanding_spec', 'search_as_you_type_spec', 'session', 'session_spec', ),
+        'search': ('serving_config', 'branch', 'query', 'image_query', 'page_size', 'page_token', 'offset', 'data_store_specs', 'filter', 'canonical_filter', 'order_by', 'user_info', 'language_code', 'region_code', 'facet_specs', 'boost_spec', 'params', 'query_expansion_spec', 'spell_correction_spec', 'user_pseudo_id', 'content_search_spec', 'embedding_spec', 'ranking_expression', 'safe_search', 'user_labels', 'natural_language_query_understanding_spec', 'search_as_you_type_spec', 'session', 'session_spec', 'relevance_threshold', ),
         'train_custom_model': ('data_store', 'gcs_training_input', 'model_type', 'error_config', 'model_id', ),
         'tune_engine': ('name', ),
         'update_control': ('control', 'update_mask', ),
diff --git a/packages/google-cloud-discoveryengine/tests/unit/gapic/discoveryengine_v1/test_data_store_service.py b/packages/google-cloud-discoveryengine/tests/unit/gapic/discoveryengine_v1/test_data_store_service.py
index 9459a96eceda..c3bd0fd5703a 100644
--- a/packages/google-cloud-discoveryengine/tests/unit/gapic/discoveryengine_v1/test_data_store_service.py
+++ b/packages/google-cloud-discoveryengine/tests/unit/gapic/discoveryengine_v1/test_data_store_service.py
@@ -3556,6 +3556,7 @@ def test_create_data_store_rest_required_fields(
         (
             "create_advanced_site_search",
             "data_store_id",
+            "skip_default_schema_creation",
         )
     )
     jsonified_request.update(unset_fields)
@@ -3622,6 +3623,7 @@ def test_create_data_store_rest_unset_required_fields():
             (
                 "createAdvancedSiteSearch",
                 "dataStoreId",
+                "skipDefaultSchemaCreation",
             )
         )
         & set(
diff --git a/packages/google-cloud-discoveryengine/tests/unit/gapic/discoveryengine_v1/test_document_service.py b/packages/google-cloud-discoveryengine/tests/unit/gapic/discoveryengine_v1/test_document_service.py
index 207850afb022..2ad97529f22b 100644
--- a/packages/google-cloud-discoveryengine/tests/unit/gapic/discoveryengine_v1/test_document_service.py
+++ b/packages/google-cloud-discoveryengine/tests/unit/gapic/discoveryengine_v1/test_document_service.py
@@ -45,10 +45,12 @@
 from google.cloud.location import locations_pb2
 from google.longrunning import operations_pb2  # type: ignore
 from google.oauth2 import service_account
+from google.protobuf import any_pb2  # type: ignore
 from google.protobuf import field_mask_pb2  # type: ignore
 from google.protobuf import json_format
 from google.protobuf import struct_pb2  # type: ignore
 from google.protobuf import timestamp_pb2  # type: ignore
+from google.rpc import status_pb2  # type: ignore
 from google.type import date_pb2  # type: ignore
 import grpc
 from grpc.experimental import aio
@@ -3911,6 +3913,387 @@ async def test_purge_documents_field_headers_async():
     ) in kw["metadata"]
 
 
+@pytest.mark.parametrize(
+    "request_type",
+    [
+        document_service.BatchGetDocumentsMetadataRequest,
+        dict,
+    ],
+)
+def test_batch_get_documents_metadata(request_type, transport: str = "grpc"):
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport=transport,
+    )
+
+    # Everything is optional in proto3 as far as the runtime is concerned,
+    # and we are mocking out the actual API, so just send an empty request.
+    request = request_type()
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.batch_get_documents_metadata), "__call__"
+    ) as call:
+        # Designate an appropriate return value for the call.
+        call.return_value = document_service.BatchGetDocumentsMetadataResponse()
+        response = client.batch_get_documents_metadata(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert len(call.mock_calls) == 1
+        _, args, _ = call.mock_calls[0]
+        request = document_service.BatchGetDocumentsMetadataRequest()
+        assert args[0] == request
+
+    # Establish that the response is the type that we expect.
+    assert isinstance(response, document_service.BatchGetDocumentsMetadataResponse)
+
+
+def test_batch_get_documents_metadata_empty_call():
+    # This test is a coverage failsafe to make sure that totally empty calls,
+    # i.e. request == None and no flattened fields passed, work.
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="grpc",
+    )
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.batch_get_documents_metadata), "__call__"
+    ) as call:
+        call.return_value.name = (
+            "foo"  # operation_request.operation in compute client(s) expect a string.
+        )
+        client.batch_get_documents_metadata()
+        call.assert_called()
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == document_service.BatchGetDocumentsMetadataRequest()
+
+
+def test_batch_get_documents_metadata_non_empty_request_with_auto_populated_field():
+    # This test is a coverage failsafe to make sure that UUID4 fields are
+    # automatically populated, according to AIP-4235, with non-empty requests.
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="grpc",
+    )
+
+    # Populate all string fields in the request which are not UUID4
+    # since we want to check that UUID4 are populated automatically
+    # if they meet the requirements of AIP 4235.
+    request = document_service.BatchGetDocumentsMetadataRequest(
+        parent="parent_value",
+    )
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.batch_get_documents_metadata), "__call__"
+    ) as call:
+        call.return_value.name = (
+            "foo"  # operation_request.operation in compute client(s) expect a string.
+        )
+        client.batch_get_documents_metadata(request=request)
+        call.assert_called()
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == document_service.BatchGetDocumentsMetadataRequest(
+            parent="parent_value",
+        )
+
+
+def test_batch_get_documents_metadata_use_cached_wrapped_rpc():
+    # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
+    # instead of constructing them on each call
+    with mock.patch("google.api_core.gapic_v1.method.wrap_method") as wrapper_fn:
+        client = DocumentServiceClient(
+            credentials=ga_credentials.AnonymousCredentials(),
+            transport="grpc",
+        )
+
+        # Should wrap all calls on client creation
+        assert wrapper_fn.call_count > 0
+        wrapper_fn.reset_mock()
+
+        # Ensure method has been cached
+        assert (
+            client._transport.batch_get_documents_metadata
+            in client._transport._wrapped_methods
+        )
+
+        # Replace cached wrapped function with mock
+        mock_rpc = mock.Mock()
+        mock_rpc.return_value.name = (
+            "foo"  # operation_request.operation in compute client(s) expect a string.
+        )
+        client._transport._wrapped_methods[
+            client._transport.batch_get_documents_metadata
+        ] = mock_rpc
+        request = {}
+        client.batch_get_documents_metadata(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert mock_rpc.call_count == 1
+
+        client.batch_get_documents_metadata(request)
+
+        # Establish that a new wrapper was not created for this call
+        assert wrapper_fn.call_count == 0
+        assert mock_rpc.call_count == 2
+
+
+@pytest.mark.asyncio
+async def test_batch_get_documents_metadata_empty_call_async():
+    # This test is a coverage failsafe to make sure that totally empty calls,
+    # i.e. request == None and no flattened fields passed, work.
+    client = DocumentServiceAsyncClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="grpc_asyncio",
+    )
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.batch_get_documents_metadata), "__call__"
+    ) as call:
+        # Designate an appropriate return value for the call.
+        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
+            document_service.BatchGetDocumentsMetadataResponse()
+        )
+        response = await client.batch_get_documents_metadata()
+        call.assert_called()
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == document_service.BatchGetDocumentsMetadataRequest()
+
+
+@pytest.mark.asyncio
+async def test_batch_get_documents_metadata_async_use_cached_wrapped_rpc(
+    transport: str = "grpc_asyncio",
+):
+    # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
+    # instead of constructing them on each call
+    with mock.patch("google.api_core.gapic_v1.method_async.wrap_method") as wrapper_fn:
+        client = DocumentServiceAsyncClient(
+            credentials=ga_credentials.AnonymousCredentials(),
+            transport=transport,
+        )
+
+        # Should wrap all calls on client creation
+        assert wrapper_fn.call_count > 0
+        wrapper_fn.reset_mock()
+
+        # Ensure method has been cached
+        assert (
+            client._client._transport.batch_get_documents_metadata
+            in client._client._transport._wrapped_methods
+        )
+
+        # Replace cached wrapped function with mock
+        mock_rpc = mock.AsyncMock()
+        mock_rpc.return_value = mock.Mock()
+        client._client._transport._wrapped_methods[
+            client._client._transport.batch_get_documents_metadata
+        ] = mock_rpc
+
+        request = {}
+        await client.batch_get_documents_metadata(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert mock_rpc.call_count == 1
+
+        await client.batch_get_documents_metadata(request)
+
+        # Establish that a new wrapper was not created for this call
+        assert wrapper_fn.call_count == 0
+        assert mock_rpc.call_count == 2
+
+
+@pytest.mark.asyncio
+async def test_batch_get_documents_metadata_async(
+    transport: str = "grpc_asyncio",
+    request_type=document_service.BatchGetDocumentsMetadataRequest,
+):
+    client = DocumentServiceAsyncClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport=transport,
+    )
+
+    # Everything is optional in proto3 as far as the runtime is concerned,
+    # and we are mocking out the actual API, so just send an empty request.
+    request = request_type()
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.batch_get_documents_metadata), "__call__"
+    ) as call:
+        # Designate an appropriate return value for the call.
+        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
+            document_service.BatchGetDocumentsMetadataResponse()
+        )
+        response = await client.batch_get_documents_metadata(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert len(call.mock_calls)
+        _, args, _ = call.mock_calls[0]
+        request = document_service.BatchGetDocumentsMetadataRequest()
+        assert args[0] == request
+
+    # Establish that the response is the type that we expect.
+    assert isinstance(response, document_service.BatchGetDocumentsMetadataResponse)
+
+
+@pytest.mark.asyncio
+async def test_batch_get_documents_metadata_async_from_dict():
+    await test_batch_get_documents_metadata_async(request_type=dict)
+
+
+def test_batch_get_documents_metadata_field_headers():
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+
+    # Any value that is part of the HTTP/1.1 URI should be sent as
+    # a field header. Set these to a non-empty value.
+    request = document_service.BatchGetDocumentsMetadataRequest()
+
+    request.parent = "parent_value"
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.batch_get_documents_metadata), "__call__"
+    ) as call:
+        call.return_value = document_service.BatchGetDocumentsMetadataResponse()
+        client.batch_get_documents_metadata(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert len(call.mock_calls) == 1
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == request
+
+    # Establish that the field header was sent.
+    _, _, kw = call.mock_calls[0]
+    assert (
+        "x-goog-request-params",
+        "parent=parent_value",
+    ) in kw["metadata"]
+
+
+@pytest.mark.asyncio
+async def test_batch_get_documents_metadata_field_headers_async():
+    client = DocumentServiceAsyncClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+
+    # Any value that is part of the HTTP/1.1 URI should be sent as
+    # a field header. Set these to a non-empty value.
+    request = document_service.BatchGetDocumentsMetadataRequest()
+
+    request.parent = "parent_value"
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.batch_get_documents_metadata), "__call__"
+    ) as call:
+        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
+            document_service.BatchGetDocumentsMetadataResponse()
+        )
+        await client.batch_get_documents_metadata(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert len(call.mock_calls)
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == request
+
+    # Establish that the field header was sent.
+    _, _, kw = call.mock_calls[0]
+    assert (
+        "x-goog-request-params",
+        "parent=parent_value",
+    ) in kw["metadata"]
+
+
+def test_batch_get_documents_metadata_flattened():
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.batch_get_documents_metadata), "__call__"
+    ) as call:
+        # Designate an appropriate return value for the call.
+        call.return_value = document_service.BatchGetDocumentsMetadataResponse()
+        # Call the method with a truthy value for each flattened field,
+        # using the keyword arguments to the method.
+        client.batch_get_documents_metadata(
+            parent="parent_value",
+        )
+
+        # Establish that the underlying call was made with the expected
+        # request object values.
+        assert len(call.mock_calls) == 1
+        _, args, _ = call.mock_calls[0]
+        arg = args[0].parent
+        mock_val = "parent_value"
+        assert arg == mock_val
+
+
+def test_batch_get_documents_metadata_flattened_error():
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+
+    # Attempting to call a method with both a request object and flattened
+    # fields is an error.
+    with pytest.raises(ValueError):
+        client.batch_get_documents_metadata(
+            document_service.BatchGetDocumentsMetadataRequest(),
+            parent="parent_value",
+        )
+
+
+@pytest.mark.asyncio
+async def test_batch_get_documents_metadata_flattened_async():
+    client = DocumentServiceAsyncClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.batch_get_documents_metadata), "__call__"
+    ) as call:
+        # Designate an appropriate return value for the call.
+        call.return_value = document_service.BatchGetDocumentsMetadataResponse()
+
+        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
+            document_service.BatchGetDocumentsMetadataResponse()
+        )
+        # Call the method with a truthy value for each flattened field,
+        # using the keyword arguments to the method.
+        response = await client.batch_get_documents_metadata(
+            parent="parent_value",
+        )
+
+        # Establish that the underlying call was made with the expected
+        # request object values.
+        assert len(call.mock_calls)
+        _, args, _ = call.mock_calls[0]
+        arg = args[0].parent
+        mock_val = "parent_value"
+        assert arg == mock_val
+
+
+@pytest.mark.asyncio
+async def test_batch_get_documents_metadata_flattened_error_async():
+    client = DocumentServiceAsyncClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+
+    # Attempting to call a method with both a request object and flattened
+    # fields is an error.
+    with pytest.raises(ValueError):
+        await client.batch_get_documents_metadata(
+            document_service.BatchGetDocumentsMetadataRequest(),
+            parent="parent_value",
+        )
+
+
 @pytest.mark.parametrize(
     "request_type",
     [
@@ -3918,7 +4301,321 @@ async def test_purge_documents_field_headers_async():
         dict,
     ],
 )
-def test_get_document_rest(request_type):
+def test_get_document_rest(request_type):
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="rest",
+    )
+
+    # send a request that will satisfy transcoding
+    request_init = {
+        "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
+    }
+    request = request_type(**request_init)
+
+    # Mock the http request call within the method and fake a response.
+    with mock.patch.object(type(client.transport._session), "request") as req:
+        # Designate an appropriate value for the returned response.
+        return_value = document.Document(
+            name="name_value",
+            id="id_value",
+            schema_id="schema_id_value",
+            parent_document_id="parent_document_id_value",
+            json_data="json_data_value",
+        )
+
+        # Wrap the value into a proper Response obj
+        response_value = Response()
+        response_value.status_code = 200
+        # Convert return value to protobuf type
+        return_value = document.Document.pb(return_value)
+        json_return_value = json_format.MessageToJson(return_value)
+
+        response_value._content = json_return_value.encode("UTF-8")
+        req.return_value = response_value
+        response = client.get_document(request)
+
+    # Establish that the response is the type that we expect.
+    assert isinstance(response, document.Document)
+    assert response.name == "name_value"
+    assert response.id == "id_value"
+    assert response.schema_id == "schema_id_value"
+    assert response.parent_document_id == "parent_document_id_value"
+
+
+def test_get_document_rest_use_cached_wrapped_rpc():
+    # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
+    # instead of constructing them on each call
+    with mock.patch("google.api_core.gapic_v1.method.wrap_method") as wrapper_fn:
+        client = DocumentServiceClient(
+            credentials=ga_credentials.AnonymousCredentials(),
+            transport="rest",
+        )
+
+        # Should wrap all calls on client creation
+        assert wrapper_fn.call_count > 0
+        wrapper_fn.reset_mock()
+
+        # Ensure method has been cached
+        assert client._transport.get_document in client._transport._wrapped_methods
+
+        # Replace cached wrapped function with mock
+        mock_rpc = mock.Mock()
+        mock_rpc.return_value.name = (
+            "foo"  # operation_request.operation in compute client(s) expect a string.
+        )
+        client._transport._wrapped_methods[client._transport.get_document] = mock_rpc
+
+        request = {}
+        client.get_document(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert mock_rpc.call_count == 1
+
+        client.get_document(request)
+
+        # Establish that a new wrapper was not created for this call
+        assert wrapper_fn.call_count == 0
+        assert mock_rpc.call_count == 2
+
+
+def test_get_document_rest_required_fields(
+    request_type=document_service.GetDocumentRequest,
+):
+    transport_class = transports.DocumentServiceRestTransport
+
+    request_init = {}
+    request_init["name"] = ""
+    request = request_type(**request_init)
+    pb_request = request_type.pb(request)
+    jsonified_request = json.loads(
+        json_format.MessageToJson(pb_request, use_integers_for_enums=False)
+    )
+
+    # verify fields with default values are dropped
+
+    unset_fields = transport_class(
+        credentials=ga_credentials.AnonymousCredentials()
+    ).get_document._get_unset_required_fields(jsonified_request)
+    jsonified_request.update(unset_fields)
+
+    # verify required fields with default values are now present
+
+    jsonified_request["name"] = "name_value"
+
+    unset_fields = transport_class(
+        credentials=ga_credentials.AnonymousCredentials()
+    ).get_document._get_unset_required_fields(jsonified_request)
+    jsonified_request.update(unset_fields)
+
+    # verify required fields with non-default values are left alone
+    assert "name" in jsonified_request
+    assert jsonified_request["name"] == "name_value"
+
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="rest",
+    )
+    request = request_type(**request_init)
+
+    # Designate an appropriate value for the returned response.
+    return_value = document.Document()
+    # Mock the http request call within the method and fake a response.
+    with mock.patch.object(Session, "request") as req:
+        # We need to mock transcode() because providing default values
+        # for required fields will fail the real version if the http_options
+        # expect actual values for those fields.
+        with mock.patch.object(path_template, "transcode") as transcode:
+            # A uri without fields and an empty body will force all the
+            # request fields to show up in the query_params.
+            pb_request = request_type.pb(request)
+            transcode_result = {
+                "uri": "v1/sample_method",
+                "method": "get",
+                "query_params": pb_request,
+            }
+            transcode.return_value = transcode_result
+
+            response_value = Response()
+            response_value.status_code = 200
+
+            # Convert return value to protobuf type
+            return_value = document.Document.pb(return_value)
+            json_return_value = json_format.MessageToJson(return_value)
+
+            response_value._content = json_return_value.encode("UTF-8")
+            req.return_value = response_value
+
+            response = client.get_document(request)
+
+            expected_params = [("$alt", "json;enum-encoding=int")]
+            actual_params = req.call_args.kwargs["params"]
+            assert expected_params == actual_params
+
+
+def test_get_document_rest_unset_required_fields():
+    transport = transports.DocumentServiceRestTransport(
+        credentials=ga_credentials.AnonymousCredentials
+    )
+
+    unset_fields = transport.get_document._get_unset_required_fields({})
+    assert set(unset_fields) == (set(()) & set(("name",)))
+
+
+@pytest.mark.parametrize("null_interceptor", [True, False])
+def test_get_document_rest_interceptors(null_interceptor):
+    transport = transports.DocumentServiceRestTransport(
+        credentials=ga_credentials.AnonymousCredentials(),
+        interceptor=None
+        if null_interceptor
+        else transports.DocumentServiceRestInterceptor(),
+    )
+    client = DocumentServiceClient(transport=transport)
+    with mock.patch.object(
+        type(client.transport._session), "request"
+    ) as req, mock.patch.object(
+        path_template, "transcode"
+    ) as transcode, mock.patch.object(
+        transports.DocumentServiceRestInterceptor, "post_get_document"
+    ) as post, mock.patch.object(
+        transports.DocumentServiceRestInterceptor, "pre_get_document"
+    ) as pre:
+        pre.assert_not_called()
+        post.assert_not_called()
+        pb_message = document_service.GetDocumentRequest.pb(
+            document_service.GetDocumentRequest()
+        )
+        transcode.return_value = {
+            "method": "post",
+            "uri": "my_uri",
+            "body": pb_message,
+            "query_params": pb_message,
+        }
+
+        req.return_value = Response()
+        req.return_value.status_code = 200
+        req.return_value.request = PreparedRequest()
+        req.return_value._content = document.Document.to_json(document.Document())
+
+        request = document_service.GetDocumentRequest()
+        metadata = [
+            ("key", "val"),
+            ("cephalopod", "squid"),
+        ]
+        pre.return_value = request, metadata
+        post.return_value = document.Document()
+
+        client.get_document(
+            request,
+            metadata=[
+                ("key", "val"),
+                ("cephalopod", "squid"),
+            ],
+        )
+
+        pre.assert_called_once()
+        post.assert_called_once()
+
+
+def test_get_document_rest_bad_request(
+    transport: str = "rest", request_type=document_service.GetDocumentRequest
+):
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport=transport,
+    )
+
+    # send a request that will satisfy transcoding
+    request_init = {
+        "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
+    }
+    request = request_type(**request_init)
+
+    # Mock the http request call within the method and fake a BadRequest error.
+    with mock.patch.object(Session, "request") as req, pytest.raises(
+        core_exceptions.BadRequest
+    ):
+        # Wrap the value into a proper Response obj
+        response_value = Response()
+        response_value.status_code = 400
+        response_value.request = Request()
+        req.return_value = response_value
+        client.get_document(request)
+
+
+def test_get_document_rest_flattened():
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="rest",
+    )
+
+    # Mock the http request call within the method and fake a response.
+    with mock.patch.object(type(client.transport._session), "request") as req:
+        # Designate an appropriate value for the returned response.
+        return_value = document.Document()
+
+        # get arguments that satisfy an http rule for this method
+        sample_request = {
+            "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
+        }
+
+        # get truthy value for each flattened field
+        mock_args = dict(
+            name="name_value",
+        )
+        mock_args.update(sample_request)
+
+        # Wrap the value into a proper Response obj
+        response_value = Response()
+        response_value.status_code = 200
+        # Convert return value to protobuf type
+        return_value = document.Document.pb(return_value)
+        json_return_value = json_format.MessageToJson(return_value)
+        response_value._content = json_return_value.encode("UTF-8")
+        req.return_value = response_value
+
+        client.get_document(**mock_args)
+
+        # Establish that the underlying call was made with the expected
+        # request object values.
+        assert len(req.mock_calls) == 1
+        _, args, _ = req.mock_calls[0]
+        assert path_template.validate(
+            "%s/v1/{name=projects/*/locations/*/dataStores/*/branches/*/documents/*}"
+            % client.transport._host,
+            args[1],
+        )
+
+
+def test_get_document_rest_flattened_error(transport: str = "rest"):
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport=transport,
+    )
+
+    # Attempting to call a method with both a request object and flattened
+    # fields is an error.
+    with pytest.raises(ValueError):
+        client.get_document(
+            document_service.GetDocumentRequest(),
+            name="name_value",
+        )
+
+
+def test_get_document_rest_error():
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(), transport="rest"
+    )
+
+
+@pytest.mark.parametrize(
+    "request_type",
+    [
+        document_service.ListDocumentsRequest,
+        dict,
+    ],
+)
+def test_list_documents_rest(request_type):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
         transport="rest",
@@ -3926,41 +4623,34 @@ def test_get_document_rest(request_type):
 
     # send a request that will satisfy transcoding
     request_init = {
-        "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
+        "parent": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4"
     }
     request = request_type(**request_init)
 
     # Mock the http request call within the method and fake a response.
     with mock.patch.object(type(client.transport._session), "request") as req:
         # Designate an appropriate value for the returned response.
-        return_value = document.Document(
-            name="name_value",
-            id="id_value",
-            schema_id="schema_id_value",
-            parent_document_id="parent_document_id_value",
-            json_data="json_data_value",
+        return_value = document_service.ListDocumentsResponse(
+            next_page_token="next_page_token_value",
         )
 
         # Wrap the value into a proper Response obj
         response_value = Response()
         response_value.status_code = 200
         # Convert return value to protobuf type
-        return_value = document.Document.pb(return_value)
+        return_value = document_service.ListDocumentsResponse.pb(return_value)
         json_return_value = json_format.MessageToJson(return_value)
 
         response_value._content = json_return_value.encode("UTF-8")
         req.return_value = response_value
-        response = client.get_document(request)
+        response = client.list_documents(request)
 
     # Establish that the response is the type that we expect.
-    assert isinstance(response, document.Document)
-    assert response.name == "name_value"
-    assert response.id == "id_value"
-    assert response.schema_id == "schema_id_value"
-    assert response.parent_document_id == "parent_document_id_value"
+    assert isinstance(response, pagers.ListDocumentsPager)
+    assert response.next_page_token == "next_page_token_value"
 
 
-def test_get_document_rest_use_cached_wrapped_rpc():
+def test_list_documents_rest_use_cached_wrapped_rpc():
     # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
     # instead of constructing them on each call
     with mock.patch("google.api_core.gapic_v1.method.wrap_method") as wrapper_fn:
@@ -3974,35 +4664,35 @@ def test_get_document_rest_use_cached_wrapped_rpc():
         wrapper_fn.reset_mock()
 
         # Ensure method has been cached
-        assert client._transport.get_document in client._transport._wrapped_methods
+        assert client._transport.list_documents in client._transport._wrapped_methods
 
         # Replace cached wrapped function with mock
         mock_rpc = mock.Mock()
         mock_rpc.return_value.name = (
             "foo"  # operation_request.operation in compute client(s) expect a string.
         )
-        client._transport._wrapped_methods[client._transport.get_document] = mock_rpc
+        client._transport._wrapped_methods[client._transport.list_documents] = mock_rpc
 
         request = {}
-        client.get_document(request)
+        client.list_documents(request)
 
         # Establish that the underlying gRPC stub method was called.
         assert mock_rpc.call_count == 1
 
-        client.get_document(request)
+        client.list_documents(request)
 
         # Establish that a new wrapper was not created for this call
         assert wrapper_fn.call_count == 0
         assert mock_rpc.call_count == 2
 
 
-def test_get_document_rest_required_fields(
-    request_type=document_service.GetDocumentRequest,
+def test_list_documents_rest_required_fields(
+    request_type=document_service.ListDocumentsRequest,
 ):
     transport_class = transports.DocumentServiceRestTransport
 
     request_init = {}
-    request_init["name"] = ""
+    request_init["parent"] = ""
     request = request_type(**request_init)
     pb_request = request_type.pb(request)
     jsonified_request = json.loads(
@@ -4013,21 +4703,28 @@ def test_get_document_rest_required_fields(
 
     unset_fields = transport_class(
         credentials=ga_credentials.AnonymousCredentials()
-    ).get_document._get_unset_required_fields(jsonified_request)
+    ).list_documents._get_unset_required_fields(jsonified_request)
     jsonified_request.update(unset_fields)
 
     # verify required fields with default values are now present
 
-    jsonified_request["name"] = "name_value"
+    jsonified_request["parent"] = "parent_value"
 
     unset_fields = transport_class(
         credentials=ga_credentials.AnonymousCredentials()
-    ).get_document._get_unset_required_fields(jsonified_request)
+    ).list_documents._get_unset_required_fields(jsonified_request)
+    # Check that path parameters and body parameters are not mixing in.
+    assert not set(unset_fields) - set(
+        (
+            "page_size",
+            "page_token",
+        )
+    )
     jsonified_request.update(unset_fields)
 
     # verify required fields with non-default values are left alone
-    assert "name" in jsonified_request
-    assert jsonified_request["name"] == "name_value"
+    assert "parent" in jsonified_request
+    assert jsonified_request["parent"] == "parent_value"
 
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
@@ -4036,7 +4733,7 @@ def test_get_document_rest_required_fields(
     request = request_type(**request_init)
 
     # Designate an appropriate value for the returned response.
-    return_value = document.Document()
+    return_value = document_service.ListDocumentsResponse()
     # Mock the http request call within the method and fake a response.
     with mock.patch.object(Session, "request") as req:
         # We need to mock transcode() because providing default values
@@ -4057,30 +4754,38 @@ def test_get_document_rest_required_fields(
             response_value.status_code = 200
 
             # Convert return value to protobuf type
-            return_value = document.Document.pb(return_value)
+            return_value = document_service.ListDocumentsResponse.pb(return_value)
             json_return_value = json_format.MessageToJson(return_value)
 
             response_value._content = json_return_value.encode("UTF-8")
             req.return_value = response_value
 
-            response = client.get_document(request)
+            response = client.list_documents(request)
 
             expected_params = [("$alt", "json;enum-encoding=int")]
             actual_params = req.call_args.kwargs["params"]
             assert expected_params == actual_params
 
 
-def test_get_document_rest_unset_required_fields():
+def test_list_documents_rest_unset_required_fields():
     transport = transports.DocumentServiceRestTransport(
         credentials=ga_credentials.AnonymousCredentials
     )
 
-    unset_fields = transport.get_document._get_unset_required_fields({})
-    assert set(unset_fields) == (set(()) & set(("name",)))
+    unset_fields = transport.list_documents._get_unset_required_fields({})
+    assert set(unset_fields) == (
+        set(
+            (
+                "pageSize",
+                "pageToken",
+            )
+        )
+        & set(("parent",))
+    )
 
 
 @pytest.mark.parametrize("null_interceptor", [True, False])
-def test_get_document_rest_interceptors(null_interceptor):
+def test_list_documents_rest_interceptors(null_interceptor):
     transport = transports.DocumentServiceRestTransport(
         credentials=ga_credentials.AnonymousCredentials(),
         interceptor=None
@@ -4093,14 +4798,14 @@ def test_get_document_rest_interceptors(null_interceptor):
     ) as req, mock.patch.object(
         path_template, "transcode"
     ) as transcode, mock.patch.object(
-        transports.DocumentServiceRestInterceptor, "post_get_document"
+        transports.DocumentServiceRestInterceptor, "post_list_documents"
     ) as post, mock.patch.object(
-        transports.DocumentServiceRestInterceptor, "pre_get_document"
+        transports.DocumentServiceRestInterceptor, "pre_list_documents"
     ) as pre:
         pre.assert_not_called()
         post.assert_not_called()
-        pb_message = document_service.GetDocumentRequest.pb(
-            document_service.GetDocumentRequest()
+        pb_message = document_service.ListDocumentsRequest.pb(
+            document_service.ListDocumentsRequest()
         )
         transcode.return_value = {
             "method": "post",
@@ -4112,17 +4817,19 @@ def test_get_document_rest_interceptors(null_interceptor):
         req.return_value = Response()
         req.return_value.status_code = 200
         req.return_value.request = PreparedRequest()
-        req.return_value._content = document.Document.to_json(document.Document())
+        req.return_value._content = document_service.ListDocumentsResponse.to_json(
+            document_service.ListDocumentsResponse()
+        )
 
-        request = document_service.GetDocumentRequest()
+        request = document_service.ListDocumentsRequest()
         metadata = [
             ("key", "val"),
             ("cephalopod", "squid"),
         ]
         pre.return_value = request, metadata
-        post.return_value = document.Document()
+        post.return_value = document_service.ListDocumentsResponse()
 
-        client.get_document(
+        client.list_documents(
             request,
             metadata=[
                 ("key", "val"),
@@ -4134,8 +4841,8 @@ def test_get_document_rest_interceptors(null_interceptor):
         post.assert_called_once()
 
 
-def test_get_document_rest_bad_request(
-    transport: str = "rest", request_type=document_service.GetDocumentRequest
+def test_list_documents_rest_bad_request(
+    transport: str = "rest", request_type=document_service.ListDocumentsRequest
 ):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
@@ -4144,7 +4851,7 @@ def test_get_document_rest_bad_request(
 
     # send a request that will satisfy transcoding
     request_init = {
-        "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
+        "parent": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4"
     }
     request = request_type(**request_init)
 
@@ -4157,10 +4864,10 @@ def test_get_document_rest_bad_request(
         response_value.status_code = 400
         response_value.request = Request()
         req.return_value = response_value
-        client.get_document(request)
+        client.list_documents(request)
 
 
-def test_get_document_rest_flattened():
+def test_list_documents_rest_flattened():
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
         transport="rest",
@@ -4169,16 +4876,16 @@ def test_get_document_rest_flattened():
     # Mock the http request call within the method and fake a response.
     with mock.patch.object(type(client.transport._session), "request") as req:
         # Designate an appropriate value for the returned response.
-        return_value = document.Document()
+        return_value = document_service.ListDocumentsResponse()
 
         # get arguments that satisfy an http rule for this method
         sample_request = {
-            "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
+            "parent": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4"
         }
 
         # get truthy value for each flattened field
         mock_args = dict(
-            name="name_value",
+            parent="parent_value",
         )
         mock_args.update(sample_request)
 
@@ -4186,25 +4893,25 @@ def test_get_document_rest_flattened():
         response_value = Response()
         response_value.status_code = 200
         # Convert return value to protobuf type
-        return_value = document.Document.pb(return_value)
+        return_value = document_service.ListDocumentsResponse.pb(return_value)
         json_return_value = json_format.MessageToJson(return_value)
         response_value._content = json_return_value.encode("UTF-8")
         req.return_value = response_value
 
-        client.get_document(**mock_args)
+        client.list_documents(**mock_args)
 
         # Establish that the underlying call was made with the expected
         # request object values.
         assert len(req.mock_calls) == 1
         _, args, _ = req.mock_calls[0]
         assert path_template.validate(
-            "%s/v1/{name=projects/*/locations/*/dataStores/*/branches/*/documents/*}"
+            "%s/v1/{parent=projects/*/locations/*/dataStores/*/branches/*}/documents"
             % client.transport._host,
             args[1],
         )
 
 
-def test_get_document_rest_flattened_error(transport: str = "rest"):
+def test_list_documents_rest_flattened_error(transport: str = "rest"):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
         transport=transport,
@@ -4213,61 +4920,224 @@ def test_get_document_rest_flattened_error(transport: str = "rest"):
     # Attempting to call a method with both a request object and flattened
     # fields is an error.
     with pytest.raises(ValueError):
-        client.get_document(
-            document_service.GetDocumentRequest(),
-            name="name_value",
+        client.list_documents(
+            document_service.ListDocumentsRequest(),
+            parent="parent_value",
+        )
+
+
+def test_list_documents_rest_pager(transport: str = "rest"):
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport=transport,
+    )
+
+    # Mock the http request call within the method and fake a response.
+    with mock.patch.object(Session, "request") as req:
+        # TODO(kbandes): remove this mock unless there's a good reason for it.
+        # with mock.patch.object(path_template, 'transcode') as transcode:
+        # Set the response as a series of pages
+        response = (
+            document_service.ListDocumentsResponse(
+                documents=[
+                    document.Document(),
+                    document.Document(),
+                    document.Document(),
+                ],
+                next_page_token="abc",
+            ),
+            document_service.ListDocumentsResponse(
+                documents=[],
+                next_page_token="def",
+            ),
+            document_service.ListDocumentsResponse(
+                documents=[
+                    document.Document(),
+                ],
+                next_page_token="ghi",
+            ),
+            document_service.ListDocumentsResponse(
+                documents=[
+                    document.Document(),
+                    document.Document(),
+                ],
+            ),
+        )
+        # Two responses for two calls
+        response = response + response
+
+        # Wrap the values into proper Response objs
+        response = tuple(
+            document_service.ListDocumentsResponse.to_json(x) for x in response
         )
+        return_values = tuple(Response() for i in response)
+        for return_val, response_val in zip(return_values, response):
+            return_val._content = response_val.encode("UTF-8")
+            return_val.status_code = 200
+        req.side_effect = return_values
+
+        sample_request = {
+            "parent": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4"
+        }
+
+        pager = client.list_documents(request=sample_request)
+
+        results = list(pager)
+        assert len(results) == 6
+        assert all(isinstance(i, document.Document) for i in results)
+
+        pages = list(client.list_documents(request=sample_request).pages)
+        for page_, token in zip(pages, ["abc", "def", "ghi", ""]):
+            assert page_.raw_page.next_page_token == token
+
+
+@pytest.mark.parametrize(
+    "request_type",
+    [
+        document_service.CreateDocumentRequest,
+        dict,
+    ],
+)
+def test_create_document_rest(request_type):
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="rest",
+    )
+
+    # send a request that will satisfy transcoding
+    request_init = {
+        "parent": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4"
+    }
+    request_init["document"] = {
+        "struct_data": {"fields": {}},
+        "json_data": "json_data_value",
+        "name": "name_value",
+        "id": "id_value",
+        "schema_id": "schema_id_value",
+        "content": {
+            "raw_bytes": b"raw_bytes_blob",
+            "uri": "uri_value",
+            "mime_type": "mime_type_value",
+        },
+        "parent_document_id": "parent_document_id_value",
+        "derived_struct_data": {},
+        "index_time": {"seconds": 751, "nanos": 543},
+        "index_status": {
+            "index_time": {},
+            "error_samples": [
+                {
+                    "code": 411,
+                    "message": "message_value",
+                    "details": [
+                        {
+                            "type_url": "type.googleapis.com/google.protobuf.Duration",
+                            "value": b"\x08\x0c\x10\xdb\x07",
+                        }
+                    ],
+                }
+            ],
+        },
+    }
+    # The version of a generated dependency at test runtime may differ from the version used during generation.
+    # Delete any fields which are not present in the current runtime dependency
+    # See https://github.com/googleapis/gapic-generator-python/issues/1748
+
+    # Determine if the message type is proto-plus or protobuf
+    test_field = document_service.CreateDocumentRequest.meta.fields["document"]
+
+    def get_message_fields(field):
+        # Given a field which is a message (composite type), return a list with
+        # all the fields of the message.
+        # If the field is not a composite type, return an empty list.
+        message_fields = []
+
+        if hasattr(field, "message") and field.message:
+            is_field_type_proto_plus_type = not hasattr(field.message, "DESCRIPTOR")
+
+            if is_field_type_proto_plus_type:
+                message_fields = field.message.meta.fields.values()
+            # Add `# pragma: NO COVER` because there may not be any `*_pb2` field types
+            else:  # pragma: NO COVER
+                message_fields = field.message.DESCRIPTOR.fields
+        return message_fields
 
+    runtime_nested_fields = [
+        (field.name, nested_field.name)
+        for field in get_message_fields(test_field)
+        for nested_field in get_message_fields(field)
+    ]
 
-def test_get_document_rest_error():
-    client = DocumentServiceClient(
-        credentials=ga_credentials.AnonymousCredentials(), transport="rest"
-    )
+    subfields_not_in_runtime = []
 
+    # For each item in the sample request, create a list of sub fields which are not present at runtime
+    # Add `# pragma: NO COVER` because this test code will not run if all subfields are present at runtime
+    for field, value in request_init["document"].items():  # pragma: NO COVER
+        result = None
+        is_repeated = False
+        # For repeated fields
+        if isinstance(value, list) and len(value):
+            is_repeated = True
+            result = value[0]
+        # For fields where the type is another message
+        if isinstance(value, dict):
+            result = value
 
-@pytest.mark.parametrize(
-    "request_type",
-    [
-        document_service.ListDocumentsRequest,
-        dict,
-    ],
-)
-def test_list_documents_rest(request_type):
-    client = DocumentServiceClient(
-        credentials=ga_credentials.AnonymousCredentials(),
-        transport="rest",
-    )
+        if result and hasattr(result, "keys"):
+            for subfield in result.keys():
+                if (field, subfield) not in runtime_nested_fields:
+                    subfields_not_in_runtime.append(
+                        {
+                            "field": field,
+                            "subfield": subfield,
+                            "is_repeated": is_repeated,
+                        }
+                    )
 
-    # send a request that will satisfy transcoding
-    request_init = {
-        "parent": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4"
-    }
+    # Remove fields from the sample request which are not present in the runtime version of the dependency
+    # Add `# pragma: NO COVER` because this test code will not run if all subfields are present at runtime
+    for subfield_to_delete in subfields_not_in_runtime:  # pragma: NO COVER
+        field = subfield_to_delete.get("field")
+        field_repeated = subfield_to_delete.get("is_repeated")
+        subfield = subfield_to_delete.get("subfield")
+        if subfield:
+            if field_repeated:
+                for i in range(0, len(request_init["document"][field])):
+                    del request_init["document"][field][i][subfield]
+            else:
+                del request_init["document"][field][subfield]
     request = request_type(**request_init)
 
     # Mock the http request call within the method and fake a response.
     with mock.patch.object(type(client.transport._session), "request") as req:
         # Designate an appropriate value for the returned response.
-        return_value = document_service.ListDocumentsResponse(
-            next_page_token="next_page_token_value",
+        return_value = gcd_document.Document(
+            name="name_value",
+            id="id_value",
+            schema_id="schema_id_value",
+            parent_document_id="parent_document_id_value",
+            json_data="json_data_value",
         )
 
         # Wrap the value into a proper Response obj
         response_value = Response()
         response_value.status_code = 200
         # Convert return value to protobuf type
-        return_value = document_service.ListDocumentsResponse.pb(return_value)
+        return_value = gcd_document.Document.pb(return_value)
         json_return_value = json_format.MessageToJson(return_value)
 
         response_value._content = json_return_value.encode("UTF-8")
         req.return_value = response_value
-        response = client.list_documents(request)
+        response = client.create_document(request)
 
     # Establish that the response is the type that we expect.
-    assert isinstance(response, pagers.ListDocumentsPager)
-    assert response.next_page_token == "next_page_token_value"
+    assert isinstance(response, gcd_document.Document)
+    assert response.name == "name_value"
+    assert response.id == "id_value"
+    assert response.schema_id == "schema_id_value"
+    assert response.parent_document_id == "parent_document_id_value"
 
 
-def test_list_documents_rest_use_cached_wrapped_rpc():
+def test_create_document_rest_use_cached_wrapped_rpc():
     # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
     # instead of constructing them on each call
     with mock.patch("google.api_core.gapic_v1.method.wrap_method") as wrapper_fn:
@@ -4281,35 +5151,36 @@ def test_list_documents_rest_use_cached_wrapped_rpc():
         wrapper_fn.reset_mock()
 
         # Ensure method has been cached
-        assert client._transport.list_documents in client._transport._wrapped_methods
+        assert client._transport.create_document in client._transport._wrapped_methods
 
         # Replace cached wrapped function with mock
         mock_rpc = mock.Mock()
         mock_rpc.return_value.name = (
             "foo"  # operation_request.operation in compute client(s) expect a string.
         )
-        client._transport._wrapped_methods[client._transport.list_documents] = mock_rpc
+        client._transport._wrapped_methods[client._transport.create_document] = mock_rpc
 
         request = {}
-        client.list_documents(request)
+        client.create_document(request)
 
         # Establish that the underlying gRPC stub method was called.
         assert mock_rpc.call_count == 1
 
-        client.list_documents(request)
+        client.create_document(request)
 
         # Establish that a new wrapper was not created for this call
         assert wrapper_fn.call_count == 0
         assert mock_rpc.call_count == 2
 
 
-def test_list_documents_rest_required_fields(
-    request_type=document_service.ListDocumentsRequest,
+def test_create_document_rest_required_fields(
+    request_type=document_service.CreateDocumentRequest,
 ):
     transport_class = transports.DocumentServiceRestTransport
 
     request_init = {}
     request_init["parent"] = ""
+    request_init["document_id"] = ""
     request = request_type(**request_init)
     pb_request = request_type.pb(request)
     jsonified_request = json.loads(
@@ -4317,31 +5188,32 @@ def test_list_documents_rest_required_fields(
     )
 
     # verify fields with default values are dropped
+    assert "documentId" not in jsonified_request
 
     unset_fields = transport_class(
         credentials=ga_credentials.AnonymousCredentials()
-    ).list_documents._get_unset_required_fields(jsonified_request)
+    ).create_document._get_unset_required_fields(jsonified_request)
     jsonified_request.update(unset_fields)
 
     # verify required fields with default values are now present
+    assert "documentId" in jsonified_request
+    assert jsonified_request["documentId"] == request_init["document_id"]
 
     jsonified_request["parent"] = "parent_value"
+    jsonified_request["documentId"] = "document_id_value"
 
     unset_fields = transport_class(
         credentials=ga_credentials.AnonymousCredentials()
-    ).list_documents._get_unset_required_fields(jsonified_request)
+    ).create_document._get_unset_required_fields(jsonified_request)
     # Check that path parameters and body parameters are not mixing in.
-    assert not set(unset_fields) - set(
-        (
-            "page_size",
-            "page_token",
-        )
-    )
+    assert not set(unset_fields) - set(("document_id",))
     jsonified_request.update(unset_fields)
 
     # verify required fields with non-default values are left alone
     assert "parent" in jsonified_request
     assert jsonified_request["parent"] == "parent_value"
+    assert "documentId" in jsonified_request
+    assert jsonified_request["documentId"] == "document_id_value"
 
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
@@ -4350,7 +5222,7 @@ def test_list_documents_rest_required_fields(
     request = request_type(**request_init)
 
     # Designate an appropriate value for the returned response.
-    return_value = document_service.ListDocumentsResponse()
+    return_value = gcd_document.Document()
     # Mock the http request call within the method and fake a response.
     with mock.patch.object(Session, "request") as req:
         # We need to mock transcode() because providing default values
@@ -4362,47 +5234,55 @@ def test_list_documents_rest_required_fields(
             pb_request = request_type.pb(request)
             transcode_result = {
                 "uri": "v1/sample_method",
-                "method": "get",
+                "method": "post",
                 "query_params": pb_request,
             }
+            transcode_result["body"] = pb_request
             transcode.return_value = transcode_result
 
             response_value = Response()
             response_value.status_code = 200
 
             # Convert return value to protobuf type
-            return_value = document_service.ListDocumentsResponse.pb(return_value)
+            return_value = gcd_document.Document.pb(return_value)
             json_return_value = json_format.MessageToJson(return_value)
 
             response_value._content = json_return_value.encode("UTF-8")
             req.return_value = response_value
 
-            response = client.list_documents(request)
+            response = client.create_document(request)
 
-            expected_params = [("$alt", "json;enum-encoding=int")]
+            expected_params = [
+                (
+                    "documentId",
+                    "",
+                ),
+                ("$alt", "json;enum-encoding=int"),
+            ]
             actual_params = req.call_args.kwargs["params"]
             assert expected_params == actual_params
 
 
-def test_list_documents_rest_unset_required_fields():
+def test_create_document_rest_unset_required_fields():
     transport = transports.DocumentServiceRestTransport(
         credentials=ga_credentials.AnonymousCredentials
     )
 
-    unset_fields = transport.list_documents._get_unset_required_fields({})
+    unset_fields = transport.create_document._get_unset_required_fields({})
     assert set(unset_fields) == (
-        set(
+        set(("documentId",))
+        & set(
             (
-                "pageSize",
-                "pageToken",
+                "parent",
+                "document",
+                "documentId",
             )
         )
-        & set(("parent",))
     )
 
 
 @pytest.mark.parametrize("null_interceptor", [True, False])
-def test_list_documents_rest_interceptors(null_interceptor):
+def test_create_document_rest_interceptors(null_interceptor):
     transport = transports.DocumentServiceRestTransport(
         credentials=ga_credentials.AnonymousCredentials(),
         interceptor=None
@@ -4415,14 +5295,14 @@ def test_list_documents_rest_interceptors(null_interceptor):
     ) as req, mock.patch.object(
         path_template, "transcode"
     ) as transcode, mock.patch.object(
-        transports.DocumentServiceRestInterceptor, "post_list_documents"
+        transports.DocumentServiceRestInterceptor, "post_create_document"
     ) as post, mock.patch.object(
-        transports.DocumentServiceRestInterceptor, "pre_list_documents"
+        transports.DocumentServiceRestInterceptor, "pre_create_document"
     ) as pre:
         pre.assert_not_called()
         post.assert_not_called()
-        pb_message = document_service.ListDocumentsRequest.pb(
-            document_service.ListDocumentsRequest()
+        pb_message = document_service.CreateDocumentRequest.pb(
+            document_service.CreateDocumentRequest()
         )
         transcode.return_value = {
             "method": "post",
@@ -4434,19 +5314,19 @@ def test_list_documents_rest_interceptors(null_interceptor):
         req.return_value = Response()
         req.return_value.status_code = 200
         req.return_value.request = PreparedRequest()
-        req.return_value._content = document_service.ListDocumentsResponse.to_json(
-            document_service.ListDocumentsResponse()
+        req.return_value._content = gcd_document.Document.to_json(
+            gcd_document.Document()
         )
 
-        request = document_service.ListDocumentsRequest()
+        request = document_service.CreateDocumentRequest()
         metadata = [
             ("key", "val"),
             ("cephalopod", "squid"),
         ]
         pre.return_value = request, metadata
-        post.return_value = document_service.ListDocumentsResponse()
+        post.return_value = gcd_document.Document()
 
-        client.list_documents(
+        client.create_document(
             request,
             metadata=[
                 ("key", "val"),
@@ -4458,8 +5338,8 @@ def test_list_documents_rest_interceptors(null_interceptor):
         post.assert_called_once()
 
 
-def test_list_documents_rest_bad_request(
-    transport: str = "rest", request_type=document_service.ListDocumentsRequest
+def test_create_document_rest_bad_request(
+    transport: str = "rest", request_type=document_service.CreateDocumentRequest
 ):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
@@ -4481,10 +5361,10 @@ def test_list_documents_rest_bad_request(
         response_value.status_code = 400
         response_value.request = Request()
         req.return_value = response_value
-        client.list_documents(request)
+        client.create_document(request)
 
 
-def test_list_documents_rest_flattened():
+def test_create_document_rest_flattened():
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
         transport="rest",
@@ -4493,7 +5373,7 @@ def test_list_documents_rest_flattened():
     # Mock the http request call within the method and fake a response.
     with mock.patch.object(type(client.transport._session), "request") as req:
         # Designate an appropriate value for the returned response.
-        return_value = document_service.ListDocumentsResponse()
+        return_value = gcd_document.Document()
 
         # get arguments that satisfy an http rule for this method
         sample_request = {
@@ -4503,6 +5383,16 @@ def test_list_documents_rest_flattened():
         # get truthy value for each flattened field
         mock_args = dict(
             parent="parent_value",
+            document=gcd_document.Document(
+                struct_data=struct_pb2.Struct(
+                    fields={
+                        "key_value": struct_pb2.Value(
+                            null_value=struct_pb2.NullValue.NULL_VALUE
+                        )
+                    }
+                )
+            ),
+            document_id="document_id_value",
         )
         mock_args.update(sample_request)
 
@@ -4510,12 +5400,12 @@ def test_list_documents_rest_flattened():
         response_value = Response()
         response_value.status_code = 200
         # Convert return value to protobuf type
-        return_value = document_service.ListDocumentsResponse.pb(return_value)
+        return_value = gcd_document.Document.pb(return_value)
         json_return_value = json_format.MessageToJson(return_value)
         response_value._content = json_return_value.encode("UTF-8")
         req.return_value = response_value
 
-        client.list_documents(**mock_args)
+        client.create_document(**mock_args)
 
         # Establish that the underlying call was made with the expected
         # request object values.
@@ -4528,94 +5418,45 @@ def test_list_documents_rest_flattened():
         )
 
 
-def test_list_documents_rest_flattened_error(transport: str = "rest"):
-    client = DocumentServiceClient(
-        credentials=ga_credentials.AnonymousCredentials(),
-        transport=transport,
-    )
-
-    # Attempting to call a method with both a request object and flattened
-    # fields is an error.
-    with pytest.raises(ValueError):
-        client.list_documents(
-            document_service.ListDocumentsRequest(),
-            parent="parent_value",
-        )
-
-
-def test_list_documents_rest_pager(transport: str = "rest"):
-    client = DocumentServiceClient(
-        credentials=ga_credentials.AnonymousCredentials(),
-        transport=transport,
-    )
-
-    # Mock the http request call within the method and fake a response.
-    with mock.patch.object(Session, "request") as req:
-        # TODO(kbandes): remove this mock unless there's a good reason for it.
-        # with mock.patch.object(path_template, 'transcode') as transcode:
-        # Set the response as a series of pages
-        response = (
-            document_service.ListDocumentsResponse(
-                documents=[
-                    document.Document(),
-                    document.Document(),
-                    document.Document(),
-                ],
-                next_page_token="abc",
-            ),
-            document_service.ListDocumentsResponse(
-                documents=[],
-                next_page_token="def",
-            ),
-            document_service.ListDocumentsResponse(
-                documents=[
-                    document.Document(),
-                ],
-                next_page_token="ghi",
-            ),
-            document_service.ListDocumentsResponse(
-                documents=[
-                    document.Document(),
-                    document.Document(),
-                ],
-            ),
-        )
-        # Two responses for two calls
-        response = response + response
-
-        # Wrap the values into proper Response objs
-        response = tuple(
-            document_service.ListDocumentsResponse.to_json(x) for x in response
-        )
-        return_values = tuple(Response() for i in response)
-        for return_val, response_val in zip(return_values, response):
-            return_val._content = response_val.encode("UTF-8")
-            return_val.status_code = 200
-        req.side_effect = return_values
-
-        sample_request = {
-            "parent": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4"
-        }
+def test_create_document_rest_flattened_error(transport: str = "rest"):
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport=transport,
+    )
 
-        pager = client.list_documents(request=sample_request)
+    # Attempting to call a method with both a request object and flattened
+    # fields is an error.
+    with pytest.raises(ValueError):
+        client.create_document(
+            document_service.CreateDocumentRequest(),
+            parent="parent_value",
+            document=gcd_document.Document(
+                struct_data=struct_pb2.Struct(
+                    fields={
+                        "key_value": struct_pb2.Value(
+                            null_value=struct_pb2.NullValue.NULL_VALUE
+                        )
+                    }
+                )
+            ),
+            document_id="document_id_value",
+        )
 
-        results = list(pager)
-        assert len(results) == 6
-        assert all(isinstance(i, document.Document) for i in results)
 
-        pages = list(client.list_documents(request=sample_request).pages)
-        for page_, token in zip(pages, ["abc", "def", "ghi", ""]):
-            assert page_.raw_page.next_page_token == token
+def test_create_document_rest_error():
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(), transport="rest"
+    )
 
 
 @pytest.mark.parametrize(
     "request_type",
     [
-        document_service.CreateDocumentRequest,
+        document_service.UpdateDocumentRequest,
         dict,
     ],
 )
-def test_create_document_rest(request_type):
+def test_update_document_rest(request_type):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
         transport="rest",
@@ -4623,12 +5464,14 @@ def test_create_document_rest(request_type):
 
     # send a request that will satisfy transcoding
     request_init = {
-        "parent": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4"
+        "document": {
+            "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
+        }
     }
     request_init["document"] = {
         "struct_data": {"fields": {}},
         "json_data": "json_data_value",
-        "name": "name_value",
+        "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5",
         "id": "id_value",
         "schema_id": "schema_id_value",
         "content": {
@@ -4639,13 +5482,28 @@ def test_create_document_rest(request_type):
         "parent_document_id": "parent_document_id_value",
         "derived_struct_data": {},
         "index_time": {"seconds": 751, "nanos": 543},
+        "index_status": {
+            "index_time": {},
+            "error_samples": [
+                {
+                    "code": 411,
+                    "message": "message_value",
+                    "details": [
+                        {
+                            "type_url": "type.googleapis.com/google.protobuf.Duration",
+                            "value": b"\x08\x0c\x10\xdb\x07",
+                        }
+                    ],
+                }
+            ],
+        },
     }
     # The version of a generated dependency at test runtime may differ from the version used during generation.
     # Delete any fields which are not present in the current runtime dependency
     # See https://github.com/googleapis/gapic-generator-python/issues/1748
 
     # Determine if the message type is proto-plus or protobuf
-    test_field = document_service.CreateDocumentRequest.meta.fields["document"]
+    test_field = document_service.UpdateDocumentRequest.meta.fields["document"]
 
     def get_message_fields(field):
         # Given a field which is a message (composite type), return a list with
@@ -4729,7 +5587,7 @@ def get_message_fields(field):
 
         response_value._content = json_return_value.encode("UTF-8")
         req.return_value = response_value
-        response = client.create_document(request)
+        response = client.update_document(request)
 
     # Establish that the response is the type that we expect.
     assert isinstance(response, gcd_document.Document)
@@ -4739,7 +5597,7 @@ def get_message_fields(field):
     assert response.parent_document_id == "parent_document_id_value"
 
 
-def test_create_document_rest_use_cached_wrapped_rpc():
+def test_update_document_rest_use_cached_wrapped_rpc():
     # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
     # instead of constructing them on each call
     with mock.patch("google.api_core.gapic_v1.method.wrap_method") as wrapper_fn:
@@ -4753,36 +5611,34 @@ def test_create_document_rest_use_cached_wrapped_rpc():
         wrapper_fn.reset_mock()
 
         # Ensure method has been cached
-        assert client._transport.create_document in client._transport._wrapped_methods
+        assert client._transport.update_document in client._transport._wrapped_methods
 
         # Replace cached wrapped function with mock
         mock_rpc = mock.Mock()
         mock_rpc.return_value.name = (
             "foo"  # operation_request.operation in compute client(s) expect a string.
         )
-        client._transport._wrapped_methods[client._transport.create_document] = mock_rpc
+        client._transport._wrapped_methods[client._transport.update_document] = mock_rpc
 
         request = {}
-        client.create_document(request)
+        client.update_document(request)
 
         # Establish that the underlying gRPC stub method was called.
         assert mock_rpc.call_count == 1
 
-        client.create_document(request)
+        client.update_document(request)
 
         # Establish that a new wrapper was not created for this call
         assert wrapper_fn.call_count == 0
         assert mock_rpc.call_count == 2
 
 
-def test_create_document_rest_required_fields(
-    request_type=document_service.CreateDocumentRequest,
+def test_update_document_rest_required_fields(
+    request_type=document_service.UpdateDocumentRequest,
 ):
     transport_class = transports.DocumentServiceRestTransport
 
     request_init = {}
-    request_init["parent"] = ""
-    request_init["document_id"] = ""
     request = request_type(**request_init)
     pb_request = request_type.pb(request)
     jsonified_request = json.loads(
@@ -4790,32 +5646,27 @@ def test_create_document_rest_required_fields(
     )
 
     # verify fields with default values are dropped
-    assert "documentId" not in jsonified_request
 
     unset_fields = transport_class(
         credentials=ga_credentials.AnonymousCredentials()
-    ).create_document._get_unset_required_fields(jsonified_request)
+    ).update_document._get_unset_required_fields(jsonified_request)
     jsonified_request.update(unset_fields)
 
     # verify required fields with default values are now present
-    assert "documentId" in jsonified_request
-    assert jsonified_request["documentId"] == request_init["document_id"]
-
-    jsonified_request["parent"] = "parent_value"
-    jsonified_request["documentId"] = "document_id_value"
 
     unset_fields = transport_class(
         credentials=ga_credentials.AnonymousCredentials()
-    ).create_document._get_unset_required_fields(jsonified_request)
+    ).update_document._get_unset_required_fields(jsonified_request)
     # Check that path parameters and body parameters are not mixing in.
-    assert not set(unset_fields) - set(("document_id",))
+    assert not set(unset_fields) - set(
+        (
+            "allow_missing",
+            "update_mask",
+        )
+    )
     jsonified_request.update(unset_fields)
 
     # verify required fields with non-default values are left alone
-    assert "parent" in jsonified_request
-    assert jsonified_request["parent"] == "parent_value"
-    assert "documentId" in jsonified_request
-    assert jsonified_request["documentId"] == "document_id_value"
 
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
@@ -4836,7 +5687,7 @@ def test_create_document_rest_required_fields(
             pb_request = request_type.pb(request)
             transcode_result = {
                 "uri": "v1/sample_method",
-                "method": "post",
+                "method": "patch",
                 "query_params": pb_request,
             }
             transcode_result["body"] = pb_request
@@ -4852,39 +5703,32 @@ def test_create_document_rest_required_fields(
             response_value._content = json_return_value.encode("UTF-8")
             req.return_value = response_value
 
-            response = client.create_document(request)
+            response = client.update_document(request)
 
-            expected_params = [
-                (
-                    "documentId",
-                    "",
-                ),
-                ("$alt", "json;enum-encoding=int"),
-            ]
+            expected_params = [("$alt", "json;enum-encoding=int")]
             actual_params = req.call_args.kwargs["params"]
             assert expected_params == actual_params
 
 
-def test_create_document_rest_unset_required_fields():
+def test_update_document_rest_unset_required_fields():
     transport = transports.DocumentServiceRestTransport(
         credentials=ga_credentials.AnonymousCredentials
     )
 
-    unset_fields = transport.create_document._get_unset_required_fields({})
+    unset_fields = transport.update_document._get_unset_required_fields({})
     assert set(unset_fields) == (
-        set(("documentId",))
-        & set(
+        set(
             (
-                "parent",
-                "document",
-                "documentId",
+                "allowMissing",
+                "updateMask",
             )
         )
+        & set(("document",))
     )
 
 
 @pytest.mark.parametrize("null_interceptor", [True, False])
-def test_create_document_rest_interceptors(null_interceptor):
+def test_update_document_rest_interceptors(null_interceptor):
     transport = transports.DocumentServiceRestTransport(
         credentials=ga_credentials.AnonymousCredentials(),
         interceptor=None
@@ -4897,14 +5741,14 @@ def test_create_document_rest_interceptors(null_interceptor):
     ) as req, mock.patch.object(
         path_template, "transcode"
     ) as transcode, mock.patch.object(
-        transports.DocumentServiceRestInterceptor, "post_create_document"
+        transports.DocumentServiceRestInterceptor, "post_update_document"
     ) as post, mock.patch.object(
-        transports.DocumentServiceRestInterceptor, "pre_create_document"
+        transports.DocumentServiceRestInterceptor, "pre_update_document"
     ) as pre:
         pre.assert_not_called()
         post.assert_not_called()
-        pb_message = document_service.CreateDocumentRequest.pb(
-            document_service.CreateDocumentRequest()
+        pb_message = document_service.UpdateDocumentRequest.pb(
+            document_service.UpdateDocumentRequest()
         )
         transcode.return_value = {
             "method": "post",
@@ -4920,7 +5764,7 @@ def test_create_document_rest_interceptors(null_interceptor):
             gcd_document.Document()
         )
 
-        request = document_service.CreateDocumentRequest()
+        request = document_service.UpdateDocumentRequest()
         metadata = [
             ("key", "val"),
             ("cephalopod", "squid"),
@@ -4928,7 +5772,7 @@ def test_create_document_rest_interceptors(null_interceptor):
         pre.return_value = request, metadata
         post.return_value = gcd_document.Document()
 
-        client.create_document(
+        client.update_document(
             request,
             metadata=[
                 ("key", "val"),
@@ -4940,8 +5784,8 @@ def test_create_document_rest_interceptors(null_interceptor):
         post.assert_called_once()
 
 
-def test_create_document_rest_bad_request(
-    transport: str = "rest", request_type=document_service.CreateDocumentRequest
+def test_update_document_rest_bad_request(
+    transport: str = "rest", request_type=document_service.UpdateDocumentRequest
 ):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
@@ -4950,7 +5794,9 @@ def test_create_document_rest_bad_request(
 
     # send a request that will satisfy transcoding
     request_init = {
-        "parent": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4"
+        "document": {
+            "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
+        }
     }
     request = request_type(**request_init)
 
@@ -4963,10 +5809,10 @@ def test_create_document_rest_bad_request(
         response_value.status_code = 400
         response_value.request = Request()
         req.return_value = response_value
-        client.create_document(request)
+        client.update_document(request)
 
 
-def test_create_document_rest_flattened():
+def test_update_document_rest_flattened():
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
         transport="rest",
@@ -4979,12 +5825,13 @@ def test_create_document_rest_flattened():
 
         # get arguments that satisfy an http rule for this method
         sample_request = {
-            "parent": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4"
+            "document": {
+                "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
+            }
         }
 
         # get truthy value for each flattened field
         mock_args = dict(
-            parent="parent_value",
             document=gcd_document.Document(
                 struct_data=struct_pb2.Struct(
                     fields={
@@ -4994,7 +5841,7 @@ def test_create_document_rest_flattened():
                     }
                 )
             ),
-            document_id="document_id_value",
+            update_mask=field_mask_pb2.FieldMask(paths=["paths_value"]),
         )
         mock_args.update(sample_request)
 
@@ -5007,20 +5854,20 @@ def test_create_document_rest_flattened():
         response_value._content = json_return_value.encode("UTF-8")
         req.return_value = response_value
 
-        client.create_document(**mock_args)
+        client.update_document(**mock_args)
 
         # Establish that the underlying call was made with the expected
         # request object values.
         assert len(req.mock_calls) == 1
         _, args, _ = req.mock_calls[0]
         assert path_template.validate(
-            "%s/v1/{parent=projects/*/locations/*/dataStores/*/branches/*}/documents"
+            "%s/v1/{document.name=projects/*/locations/*/dataStores/*/branches/*/documents/*}"
             % client.transport._host,
             args[1],
         )
 
 
-def test_create_document_rest_flattened_error(transport: str = "rest"):
+def test_update_document_rest_flattened_error(transport: str = "rest"):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
         transport=transport,
@@ -5029,9 +5876,8 @@ def test_create_document_rest_flattened_error(transport: str = "rest"):
     # Attempting to call a method with both a request object and flattened
     # fields is an error.
     with pytest.raises(ValueError):
-        client.create_document(
-            document_service.CreateDocumentRequest(),
-            parent="parent_value",
+        client.update_document(
+            document_service.UpdateDocumentRequest(),
             document=gcd_document.Document(
                 struct_data=struct_pb2.Struct(
                     fields={
@@ -5041,150 +5887,54 @@ def test_create_document_rest_flattened_error(transport: str = "rest"):
                     }
                 )
             ),
-            document_id="document_id_value",
+            update_mask=field_mask_pb2.FieldMask(paths=["paths_value"]),
         )
 
 
-def test_create_document_rest_error():
+def test_update_document_rest_error():
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(), transport="rest"
-    )
-
-
-@pytest.mark.parametrize(
-    "request_type",
-    [
-        document_service.UpdateDocumentRequest,
-        dict,
-    ],
-)
-def test_update_document_rest(request_type):
-    client = DocumentServiceClient(
-        credentials=ga_credentials.AnonymousCredentials(),
-        transport="rest",
-    )
-
-    # send a request that will satisfy transcoding
-    request_init = {
-        "document": {
-            "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
-        }
-    }
-    request_init["document"] = {
-        "struct_data": {"fields": {}},
-        "json_data": "json_data_value",
-        "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5",
-        "id": "id_value",
-        "schema_id": "schema_id_value",
-        "content": {
-            "raw_bytes": b"raw_bytes_blob",
-            "uri": "uri_value",
-            "mime_type": "mime_type_value",
-        },
-        "parent_document_id": "parent_document_id_value",
-        "derived_struct_data": {},
-        "index_time": {"seconds": 751, "nanos": 543},
-    }
-    # The version of a generated dependency at test runtime may differ from the version used during generation.
-    # Delete any fields which are not present in the current runtime dependency
-    # See https://github.com/googleapis/gapic-generator-python/issues/1748
-
-    # Determine if the message type is proto-plus or protobuf
-    test_field = document_service.UpdateDocumentRequest.meta.fields["document"]
-
-    def get_message_fields(field):
-        # Given a field which is a message (composite type), return a list with
-        # all the fields of the message.
-        # If the field is not a composite type, return an empty list.
-        message_fields = []
-
-        if hasattr(field, "message") and field.message:
-            is_field_type_proto_plus_type = not hasattr(field.message, "DESCRIPTOR")
-
-            if is_field_type_proto_plus_type:
-                message_fields = field.message.meta.fields.values()
-            # Add `# pragma: NO COVER` because there may not be any `*_pb2` field types
-            else:  # pragma: NO COVER
-                message_fields = field.message.DESCRIPTOR.fields
-        return message_fields
-
-    runtime_nested_fields = [
-        (field.name, nested_field.name)
-        for field in get_message_fields(test_field)
-        for nested_field in get_message_fields(field)
-    ]
-
-    subfields_not_in_runtime = []
-
-    # For each item in the sample request, create a list of sub fields which are not present at runtime
-    # Add `# pragma: NO COVER` because this test code will not run if all subfields are present at runtime
-    for field, value in request_init["document"].items():  # pragma: NO COVER
-        result = None
-        is_repeated = False
-        # For repeated fields
-        if isinstance(value, list) and len(value):
-            is_repeated = True
-            result = value[0]
-        # For fields where the type is another message
-        if isinstance(value, dict):
-            result = value
-
-        if result and hasattr(result, "keys"):
-            for subfield in result.keys():
-                if (field, subfield) not in runtime_nested_fields:
-                    subfields_not_in_runtime.append(
-                        {
-                            "field": field,
-                            "subfield": subfield,
-                            "is_repeated": is_repeated,
-                        }
-                    )
+    )
 
-    # Remove fields from the sample request which are not present in the runtime version of the dependency
-    # Add `# pragma: NO COVER` because this test code will not run if all subfields are present at runtime
-    for subfield_to_delete in subfields_not_in_runtime:  # pragma: NO COVER
-        field = subfield_to_delete.get("field")
-        field_repeated = subfield_to_delete.get("is_repeated")
-        subfield = subfield_to_delete.get("subfield")
-        if subfield:
-            if field_repeated:
-                for i in range(0, len(request_init["document"][field])):
-                    del request_init["document"][field][i][subfield]
-            else:
-                del request_init["document"][field][subfield]
+
+@pytest.mark.parametrize(
+    "request_type",
+    [
+        document_service.DeleteDocumentRequest,
+        dict,
+    ],
+)
+def test_delete_document_rest(request_type):
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="rest",
+    )
+
+    # send a request that will satisfy transcoding
+    request_init = {
+        "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
+    }
     request = request_type(**request_init)
 
     # Mock the http request call within the method and fake a response.
     with mock.patch.object(type(client.transport._session), "request") as req:
         # Designate an appropriate value for the returned response.
-        return_value = gcd_document.Document(
-            name="name_value",
-            id="id_value",
-            schema_id="schema_id_value",
-            parent_document_id="parent_document_id_value",
-            json_data="json_data_value",
-        )
+        return_value = None
 
         # Wrap the value into a proper Response obj
         response_value = Response()
         response_value.status_code = 200
-        # Convert return value to protobuf type
-        return_value = gcd_document.Document.pb(return_value)
-        json_return_value = json_format.MessageToJson(return_value)
+        json_return_value = ""
 
         response_value._content = json_return_value.encode("UTF-8")
         req.return_value = response_value
-        response = client.update_document(request)
+        response = client.delete_document(request)
 
     # Establish that the response is the type that we expect.
-    assert isinstance(response, gcd_document.Document)
-    assert response.name == "name_value"
-    assert response.id == "id_value"
-    assert response.schema_id == "schema_id_value"
-    assert response.parent_document_id == "parent_document_id_value"
+    assert response is None
 
 
-def test_update_document_rest_use_cached_wrapped_rpc():
+def test_delete_document_rest_use_cached_wrapped_rpc():
     # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
     # instead of constructing them on each call
     with mock.patch("google.api_core.gapic_v1.method.wrap_method") as wrapper_fn:
@@ -5198,34 +5948,35 @@ def test_update_document_rest_use_cached_wrapped_rpc():
         wrapper_fn.reset_mock()
 
         # Ensure method has been cached
-        assert client._transport.update_document in client._transport._wrapped_methods
+        assert client._transport.delete_document in client._transport._wrapped_methods
 
         # Replace cached wrapped function with mock
         mock_rpc = mock.Mock()
         mock_rpc.return_value.name = (
             "foo"  # operation_request.operation in compute client(s) expect a string.
         )
-        client._transport._wrapped_methods[client._transport.update_document] = mock_rpc
+        client._transport._wrapped_methods[client._transport.delete_document] = mock_rpc
 
         request = {}
-        client.update_document(request)
+        client.delete_document(request)
 
         # Establish that the underlying gRPC stub method was called.
         assert mock_rpc.call_count == 1
 
-        client.update_document(request)
+        client.delete_document(request)
 
         # Establish that a new wrapper was not created for this call
         assert wrapper_fn.call_count == 0
         assert mock_rpc.call_count == 2
 
 
-def test_update_document_rest_required_fields(
-    request_type=document_service.UpdateDocumentRequest,
+def test_delete_document_rest_required_fields(
+    request_type=document_service.DeleteDocumentRequest,
 ):
     transport_class = transports.DocumentServiceRestTransport
 
     request_init = {}
+    request_init["name"] = ""
     request = request_type(**request_init)
     pb_request = request_type.pb(request)
     jsonified_request = json.loads(
@@ -5236,24 +5987,21 @@ def test_update_document_rest_required_fields(
 
     unset_fields = transport_class(
         credentials=ga_credentials.AnonymousCredentials()
-    ).update_document._get_unset_required_fields(jsonified_request)
+    ).delete_document._get_unset_required_fields(jsonified_request)
     jsonified_request.update(unset_fields)
 
     # verify required fields with default values are now present
 
+    jsonified_request["name"] = "name_value"
+
     unset_fields = transport_class(
         credentials=ga_credentials.AnonymousCredentials()
-    ).update_document._get_unset_required_fields(jsonified_request)
-    # Check that path parameters and body parameters are not mixing in.
-    assert not set(unset_fields) - set(
-        (
-            "allow_missing",
-            "update_mask",
-        )
-    )
+    ).delete_document._get_unset_required_fields(jsonified_request)
     jsonified_request.update(unset_fields)
 
     # verify required fields with non-default values are left alone
+    assert "name" in jsonified_request
+    assert jsonified_request["name"] == "name_value"
 
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
@@ -5262,7 +6010,7 @@ def test_update_document_rest_required_fields(
     request = request_type(**request_init)
 
     # Designate an appropriate value for the returned response.
-    return_value = gcd_document.Document()
+    return_value = None
     # Mock the http request call within the method and fake a response.
     with mock.patch.object(Session, "request") as req:
         # We need to mock transcode() because providing default values
@@ -5274,48 +6022,36 @@ def test_update_document_rest_required_fields(
             pb_request = request_type.pb(request)
             transcode_result = {
                 "uri": "v1/sample_method",
-                "method": "patch",
+                "method": "delete",
                 "query_params": pb_request,
             }
-            transcode_result["body"] = pb_request
             transcode.return_value = transcode_result
 
             response_value = Response()
             response_value.status_code = 200
-
-            # Convert return value to protobuf type
-            return_value = gcd_document.Document.pb(return_value)
-            json_return_value = json_format.MessageToJson(return_value)
+            json_return_value = ""
 
             response_value._content = json_return_value.encode("UTF-8")
             req.return_value = response_value
 
-            response = client.update_document(request)
+            response = client.delete_document(request)
 
             expected_params = [("$alt", "json;enum-encoding=int")]
             actual_params = req.call_args.kwargs["params"]
             assert expected_params == actual_params
 
 
-def test_update_document_rest_unset_required_fields():
+def test_delete_document_rest_unset_required_fields():
     transport = transports.DocumentServiceRestTransport(
         credentials=ga_credentials.AnonymousCredentials
     )
 
-    unset_fields = transport.update_document._get_unset_required_fields({})
-    assert set(unset_fields) == (
-        set(
-            (
-                "allowMissing",
-                "updateMask",
-            )
-        )
-        & set(("document",))
-    )
+    unset_fields = transport.delete_document._get_unset_required_fields({})
+    assert set(unset_fields) == (set(()) & set(("name",)))
 
 
 @pytest.mark.parametrize("null_interceptor", [True, False])
-def test_update_document_rest_interceptors(null_interceptor):
+def test_delete_document_rest_interceptors(null_interceptor):
     transport = transports.DocumentServiceRestTransport(
         credentials=ga_credentials.AnonymousCredentials(),
         interceptor=None
@@ -5328,14 +6064,11 @@ def test_update_document_rest_interceptors(null_interceptor):
     ) as req, mock.patch.object(
         path_template, "transcode"
     ) as transcode, mock.patch.object(
-        transports.DocumentServiceRestInterceptor, "post_update_document"
-    ) as post, mock.patch.object(
-        transports.DocumentServiceRestInterceptor, "pre_update_document"
+        transports.DocumentServiceRestInterceptor, "pre_delete_document"
     ) as pre:
         pre.assert_not_called()
-        post.assert_not_called()
-        pb_message = document_service.UpdateDocumentRequest.pb(
-            document_service.UpdateDocumentRequest()
+        pb_message = document_service.DeleteDocumentRequest.pb(
+            document_service.DeleteDocumentRequest()
         )
         transcode.return_value = {
             "method": "post",
@@ -5347,19 +6080,15 @@ def test_update_document_rest_interceptors(null_interceptor):
         req.return_value = Response()
         req.return_value.status_code = 200
         req.return_value.request = PreparedRequest()
-        req.return_value._content = gcd_document.Document.to_json(
-            gcd_document.Document()
-        )
 
-        request = document_service.UpdateDocumentRequest()
+        request = document_service.DeleteDocumentRequest()
         metadata = [
             ("key", "val"),
             ("cephalopod", "squid"),
         ]
         pre.return_value = request, metadata
-        post.return_value = gcd_document.Document()
 
-        client.update_document(
+        client.delete_document(
             request,
             metadata=[
                 ("key", "val"),
@@ -5368,11 +6097,10 @@ def test_update_document_rest_interceptors(null_interceptor):
         )
 
         pre.assert_called_once()
-        post.assert_called_once()
 
 
-def test_update_document_rest_bad_request(
-    transport: str = "rest", request_type=document_service.UpdateDocumentRequest
+def test_delete_document_rest_bad_request(
+    transport: str = "rest", request_type=document_service.DeleteDocumentRequest
 ):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
@@ -5381,9 +6109,7 @@ def test_update_document_rest_bad_request(
 
     # send a request that will satisfy transcoding
     request_init = {
-        "document": {
-            "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
-        }
+        "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
     }
     request = request_type(**request_init)
 
@@ -5396,10 +6122,10 @@ def test_update_document_rest_bad_request(
         response_value.status_code = 400
         response_value.request = Request()
         req.return_value = response_value
-        client.update_document(request)
+        client.delete_document(request)
 
 
-def test_update_document_rest_flattened():
+def test_delete_document_rest_flattened():
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
         transport="rest",
@@ -5408,53 +6134,40 @@ def test_update_document_rest_flattened():
     # Mock the http request call within the method and fake a response.
     with mock.patch.object(type(client.transport._session), "request") as req:
         # Designate an appropriate value for the returned response.
-        return_value = gcd_document.Document()
+        return_value = None
 
         # get arguments that satisfy an http rule for this method
         sample_request = {
-            "document": {
-                "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
-            }
+            "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
         }
 
         # get truthy value for each flattened field
         mock_args = dict(
-            document=gcd_document.Document(
-                struct_data=struct_pb2.Struct(
-                    fields={
-                        "key_value": struct_pb2.Value(
-                            null_value=struct_pb2.NullValue.NULL_VALUE
-                        )
-                    }
-                )
-            ),
-            update_mask=field_mask_pb2.FieldMask(paths=["paths_value"]),
+            name="name_value",
         )
         mock_args.update(sample_request)
 
         # Wrap the value into a proper Response obj
         response_value = Response()
         response_value.status_code = 200
-        # Convert return value to protobuf type
-        return_value = gcd_document.Document.pb(return_value)
-        json_return_value = json_format.MessageToJson(return_value)
+        json_return_value = ""
         response_value._content = json_return_value.encode("UTF-8")
         req.return_value = response_value
 
-        client.update_document(**mock_args)
+        client.delete_document(**mock_args)
 
         # Establish that the underlying call was made with the expected
         # request object values.
         assert len(req.mock_calls) == 1
         _, args, _ = req.mock_calls[0]
         assert path_template.validate(
-            "%s/v1/{document.name=projects/*/locations/*/dataStores/*/branches/*/documents/*}"
+            "%s/v1/{name=projects/*/locations/*/dataStores/*/branches/*/documents/*}"
             % client.transport._host,
             args[1],
         )
 
 
-def test_update_document_rest_flattened_error(transport: str = "rest"):
+def test_delete_document_rest_flattened_error(transport: str = "rest"):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
         transport=transport,
@@ -5463,22 +6176,13 @@ def test_update_document_rest_flattened_error(transport: str = "rest"):
     # Attempting to call a method with both a request object and flattened
     # fields is an error.
     with pytest.raises(ValueError):
-        client.update_document(
-            document_service.UpdateDocumentRequest(),
-            document=gcd_document.Document(
-                struct_data=struct_pb2.Struct(
-                    fields={
-                        "key_value": struct_pb2.Value(
-                            null_value=struct_pb2.NullValue.NULL_VALUE
-                        )
-                    }
-                )
-            ),
-            update_mask=field_mask_pb2.FieldMask(paths=["paths_value"]),
+        client.delete_document(
+            document_service.DeleteDocumentRequest(),
+            name="name_value",
         )
 
 
-def test_update_document_rest_error():
+def test_delete_document_rest_error():
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(), transport="rest"
     )
@@ -5487,11 +6191,11 @@ def test_update_document_rest_error():
 @pytest.mark.parametrize(
     "request_type",
     [
-        document_service.DeleteDocumentRequest,
+        import_config.ImportDocumentsRequest,
         dict,
     ],
 )
-def test_delete_document_rest(request_type):
+def test_import_documents_rest(request_type):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
         transport="rest",
@@ -5499,29 +6203,29 @@ def test_delete_document_rest(request_type):
 
     # send a request that will satisfy transcoding
     request_init = {
-        "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
+        "parent": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4"
     }
     request = request_type(**request_init)
 
     # Mock the http request call within the method and fake a response.
     with mock.patch.object(type(client.transport._session), "request") as req:
         # Designate an appropriate value for the returned response.
-        return_value = None
+        return_value = operations_pb2.Operation(name="operations/spam")
 
         # Wrap the value into a proper Response obj
         response_value = Response()
         response_value.status_code = 200
-        json_return_value = ""
+        json_return_value = json_format.MessageToJson(return_value)
 
         response_value._content = json_return_value.encode("UTF-8")
         req.return_value = response_value
-        response = client.delete_document(request)
+        response = client.import_documents(request)
 
     # Establish that the response is the type that we expect.
-    assert response is None
+    assert response.operation.name == "operations/spam"
 
 
-def test_delete_document_rest_use_cached_wrapped_rpc():
+def test_import_documents_rest_use_cached_wrapped_rpc():
     # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
     # instead of constructing them on each call
     with mock.patch("google.api_core.gapic_v1.method.wrap_method") as wrapper_fn:
@@ -5535,35 +6239,41 @@ def test_delete_document_rest_use_cached_wrapped_rpc():
         wrapper_fn.reset_mock()
 
         # Ensure method has been cached
-        assert client._transport.delete_document in client._transport._wrapped_methods
+        assert client._transport.import_documents in client._transport._wrapped_methods
 
         # Replace cached wrapped function with mock
         mock_rpc = mock.Mock()
         mock_rpc.return_value.name = (
             "foo"  # operation_request.operation in compute client(s) expect a string.
         )
-        client._transport._wrapped_methods[client._transport.delete_document] = mock_rpc
+        client._transport._wrapped_methods[
+            client._transport.import_documents
+        ] = mock_rpc
 
         request = {}
-        client.delete_document(request)
+        client.import_documents(request)
 
         # Establish that the underlying gRPC stub method was called.
         assert mock_rpc.call_count == 1
 
-        client.delete_document(request)
+        # Operation methods build a cached wrapper on first rpc call
+        # subsequent calls should use the cached wrapper
+        wrapper_fn.reset_mock()
+
+        client.import_documents(request)
 
         # Establish that a new wrapper was not created for this call
         assert wrapper_fn.call_count == 0
         assert mock_rpc.call_count == 2
 
 
-def test_delete_document_rest_required_fields(
-    request_type=document_service.DeleteDocumentRequest,
+def test_import_documents_rest_required_fields(
+    request_type=import_config.ImportDocumentsRequest,
 ):
     transport_class = transports.DocumentServiceRestTransport
 
     request_init = {}
-    request_init["name"] = ""
+    request_init["parent"] = ""
     request = request_type(**request_init)
     pb_request = request_type.pb(request)
     jsonified_request = json.loads(
@@ -5574,21 +6284,21 @@ def test_delete_document_rest_required_fields(
 
     unset_fields = transport_class(
         credentials=ga_credentials.AnonymousCredentials()
-    ).delete_document._get_unset_required_fields(jsonified_request)
+    ).import_documents._get_unset_required_fields(jsonified_request)
     jsonified_request.update(unset_fields)
 
     # verify required fields with default values are now present
 
-    jsonified_request["name"] = "name_value"
+    jsonified_request["parent"] = "parent_value"
 
     unset_fields = transport_class(
         credentials=ga_credentials.AnonymousCredentials()
-    ).delete_document._get_unset_required_fields(jsonified_request)
+    ).import_documents._get_unset_required_fields(jsonified_request)
     jsonified_request.update(unset_fields)
 
     # verify required fields with non-default values are left alone
-    assert "name" in jsonified_request
-    assert jsonified_request["name"] == "name_value"
+    assert "parent" in jsonified_request
+    assert jsonified_request["parent"] == "parent_value"
 
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
@@ -5597,7 +6307,7 @@ def test_delete_document_rest_required_fields(
     request = request_type(**request_init)
 
     # Designate an appropriate value for the returned response.
-    return_value = None
+    return_value = operations_pb2.Operation(name="operations/spam")
     # Mock the http request call within the method and fake a response.
     with mock.patch.object(Session, "request") as req:
         # We need to mock transcode() because providing default values
@@ -5609,36 +6319,37 @@ def test_delete_document_rest_required_fields(
             pb_request = request_type.pb(request)
             transcode_result = {
                 "uri": "v1/sample_method",
-                "method": "delete",
+                "method": "post",
                 "query_params": pb_request,
             }
+            transcode_result["body"] = pb_request
             transcode.return_value = transcode_result
 
             response_value = Response()
             response_value.status_code = 200
-            json_return_value = ""
+            json_return_value = json_format.MessageToJson(return_value)
 
             response_value._content = json_return_value.encode("UTF-8")
             req.return_value = response_value
 
-            response = client.delete_document(request)
+            response = client.import_documents(request)
 
             expected_params = [("$alt", "json;enum-encoding=int")]
             actual_params = req.call_args.kwargs["params"]
             assert expected_params == actual_params
 
 
-def test_delete_document_rest_unset_required_fields():
+def test_import_documents_rest_unset_required_fields():
     transport = transports.DocumentServiceRestTransport(
         credentials=ga_credentials.AnonymousCredentials
     )
 
-    unset_fields = transport.delete_document._get_unset_required_fields({})
-    assert set(unset_fields) == (set(()) & set(("name",)))
+    unset_fields = transport.import_documents._get_unset_required_fields({})
+    assert set(unset_fields) == (set(()) & set(("parent",)))
 
 
 @pytest.mark.parametrize("null_interceptor", [True, False])
-def test_delete_document_rest_interceptors(null_interceptor):
+def test_import_documents_rest_interceptors(null_interceptor):
     transport = transports.DocumentServiceRestTransport(
         credentials=ga_credentials.AnonymousCredentials(),
         interceptor=None
@@ -5651,11 +6362,16 @@ def test_delete_document_rest_interceptors(null_interceptor):
     ) as req, mock.patch.object(
         path_template, "transcode"
     ) as transcode, mock.patch.object(
-        transports.DocumentServiceRestInterceptor, "pre_delete_document"
+        operation.Operation, "_set_result_from_operation"
+    ), mock.patch.object(
+        transports.DocumentServiceRestInterceptor, "post_import_documents"
+    ) as post, mock.patch.object(
+        transports.DocumentServiceRestInterceptor, "pre_import_documents"
     ) as pre:
         pre.assert_not_called()
-        pb_message = document_service.DeleteDocumentRequest.pb(
-            document_service.DeleteDocumentRequest()
+        post.assert_not_called()
+        pb_message = import_config.ImportDocumentsRequest.pb(
+            import_config.ImportDocumentsRequest()
         )
         transcode.return_value = {
             "method": "post",
@@ -5667,15 +6383,19 @@ def test_delete_document_rest_interceptors(null_interceptor):
         req.return_value = Response()
         req.return_value.status_code = 200
         req.return_value.request = PreparedRequest()
+        req.return_value._content = json_format.MessageToJson(
+            operations_pb2.Operation()
+        )
 
-        request = document_service.DeleteDocumentRequest()
+        request = import_config.ImportDocumentsRequest()
         metadata = [
             ("key", "val"),
             ("cephalopod", "squid"),
         ]
         pre.return_value = request, metadata
+        post.return_value = operations_pb2.Operation()
 
-        client.delete_document(
+        client.import_documents(
             request,
             metadata=[
                 ("key", "val"),
@@ -5684,10 +6404,11 @@ def test_delete_document_rest_interceptors(null_interceptor):
         )
 
         pre.assert_called_once()
+        post.assert_called_once()
 
 
-def test_delete_document_rest_bad_request(
-    transport: str = "rest", request_type=document_service.DeleteDocumentRequest
+def test_import_documents_rest_bad_request(
+    transport: str = "rest", request_type=import_config.ImportDocumentsRequest
 ):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
@@ -5696,7 +6417,7 @@ def test_delete_document_rest_bad_request(
 
     # send a request that will satisfy transcoding
     request_init = {
-        "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
+        "parent": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4"
     }
     request = request_type(**request_init)
 
@@ -5709,67 +6430,10 @@ def test_delete_document_rest_bad_request(
         response_value.status_code = 400
         response_value.request = Request()
         req.return_value = response_value
-        client.delete_document(request)
-
-
-def test_delete_document_rest_flattened():
-    client = DocumentServiceClient(
-        credentials=ga_credentials.AnonymousCredentials(),
-        transport="rest",
-    )
-
-    # Mock the http request call within the method and fake a response.
-    with mock.patch.object(type(client.transport._session), "request") as req:
-        # Designate an appropriate value for the returned response.
-        return_value = None
-
-        # get arguments that satisfy an http rule for this method
-        sample_request = {
-            "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
-        }
-
-        # get truthy value for each flattened field
-        mock_args = dict(
-            name="name_value",
-        )
-        mock_args.update(sample_request)
-
-        # Wrap the value into a proper Response obj
-        response_value = Response()
-        response_value.status_code = 200
-        json_return_value = ""
-        response_value._content = json_return_value.encode("UTF-8")
-        req.return_value = response_value
-
-        client.delete_document(**mock_args)
-
-        # Establish that the underlying call was made with the expected
-        # request object values.
-        assert len(req.mock_calls) == 1
-        _, args, _ = req.mock_calls[0]
-        assert path_template.validate(
-            "%s/v1/{name=projects/*/locations/*/dataStores/*/branches/*/documents/*}"
-            % client.transport._host,
-            args[1],
-        )
-
-
-def test_delete_document_rest_flattened_error(transport: str = "rest"):
-    client = DocumentServiceClient(
-        credentials=ga_credentials.AnonymousCredentials(),
-        transport=transport,
-    )
-
-    # Attempting to call a method with both a request object and flattened
-    # fields is an error.
-    with pytest.raises(ValueError):
-        client.delete_document(
-            document_service.DeleteDocumentRequest(),
-            name="name_value",
-        )
+        client.import_documents(request)
 
 
-def test_delete_document_rest_error():
+def test_import_documents_rest_error():
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(), transport="rest"
     )
@@ -5778,11 +6442,11 @@ def test_delete_document_rest_error():
 @pytest.mark.parametrize(
     "request_type",
     [
-        import_config.ImportDocumentsRequest,
+        purge_config.PurgeDocumentsRequest,
         dict,
     ],
 )
-def test_import_documents_rest(request_type):
+def test_purge_documents_rest(request_type):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
         transport="rest",
@@ -5806,13 +6470,13 @@ def test_import_documents_rest(request_type):
 
         response_value._content = json_return_value.encode("UTF-8")
         req.return_value = response_value
-        response = client.import_documents(request)
+        response = client.purge_documents(request)
 
     # Establish that the response is the type that we expect.
     assert response.operation.name == "operations/spam"
 
 
-def test_import_documents_rest_use_cached_wrapped_rpc():
+def test_purge_documents_rest_use_cached_wrapped_rpc():
     # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
     # instead of constructing them on each call
     with mock.patch("google.api_core.gapic_v1.method.wrap_method") as wrapper_fn:
@@ -5826,19 +6490,17 @@ def test_import_documents_rest_use_cached_wrapped_rpc():
         wrapper_fn.reset_mock()
 
         # Ensure method has been cached
-        assert client._transport.import_documents in client._transport._wrapped_methods
+        assert client._transport.purge_documents in client._transport._wrapped_methods
 
         # Replace cached wrapped function with mock
         mock_rpc = mock.Mock()
         mock_rpc.return_value.name = (
             "foo"  # operation_request.operation in compute client(s) expect a string.
         )
-        client._transport._wrapped_methods[
-            client._transport.import_documents
-        ] = mock_rpc
+        client._transport._wrapped_methods[client._transport.purge_documents] = mock_rpc
 
         request = {}
-        client.import_documents(request)
+        client.purge_documents(request)
 
         # Establish that the underlying gRPC stub method was called.
         assert mock_rpc.call_count == 1
@@ -5847,20 +6509,21 @@ def test_import_documents_rest_use_cached_wrapped_rpc():
         # subsequent calls should use the cached wrapper
         wrapper_fn.reset_mock()
 
-        client.import_documents(request)
+        client.purge_documents(request)
 
         # Establish that a new wrapper was not created for this call
         assert wrapper_fn.call_count == 0
         assert mock_rpc.call_count == 2
 
 
-def test_import_documents_rest_required_fields(
-    request_type=import_config.ImportDocumentsRequest,
+def test_purge_documents_rest_required_fields(
+    request_type=purge_config.PurgeDocumentsRequest,
 ):
     transport_class = transports.DocumentServiceRestTransport
 
     request_init = {}
     request_init["parent"] = ""
+    request_init["filter"] = ""
     request = request_type(**request_init)
     pb_request = request_type.pb(request)
     jsonified_request = json.loads(
@@ -5871,21 +6534,24 @@ def test_import_documents_rest_required_fields(
 
     unset_fields = transport_class(
         credentials=ga_credentials.AnonymousCredentials()
-    ).import_documents._get_unset_required_fields(jsonified_request)
+    ).purge_documents._get_unset_required_fields(jsonified_request)
     jsonified_request.update(unset_fields)
 
     # verify required fields with default values are now present
 
     jsonified_request["parent"] = "parent_value"
+    jsonified_request["filter"] = "filter_value"
 
     unset_fields = transport_class(
         credentials=ga_credentials.AnonymousCredentials()
-    ).import_documents._get_unset_required_fields(jsonified_request)
+    ).purge_documents._get_unset_required_fields(jsonified_request)
     jsonified_request.update(unset_fields)
 
     # verify required fields with non-default values are left alone
     assert "parent" in jsonified_request
     assert jsonified_request["parent"] == "parent_value"
+    assert "filter" in jsonified_request
+    assert jsonified_request["filter"] == "filter_value"
 
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
@@ -5919,24 +6585,32 @@ def test_import_documents_rest_required_fields(
             response_value._content = json_return_value.encode("UTF-8")
             req.return_value = response_value
 
-            response = client.import_documents(request)
+            response = client.purge_documents(request)
 
             expected_params = [("$alt", "json;enum-encoding=int")]
             actual_params = req.call_args.kwargs["params"]
             assert expected_params == actual_params
 
 
-def test_import_documents_rest_unset_required_fields():
+def test_purge_documents_rest_unset_required_fields():
     transport = transports.DocumentServiceRestTransport(
         credentials=ga_credentials.AnonymousCredentials
     )
 
-    unset_fields = transport.import_documents._get_unset_required_fields({})
-    assert set(unset_fields) == (set(()) & set(("parent",)))
+    unset_fields = transport.purge_documents._get_unset_required_fields({})
+    assert set(unset_fields) == (
+        set(())
+        & set(
+            (
+                "parent",
+                "filter",
+            )
+        )
+    )
 
 
 @pytest.mark.parametrize("null_interceptor", [True, False])
-def test_import_documents_rest_interceptors(null_interceptor):
+def test_purge_documents_rest_interceptors(null_interceptor):
     transport = transports.DocumentServiceRestTransport(
         credentials=ga_credentials.AnonymousCredentials(),
         interceptor=None
@@ -5951,14 +6625,14 @@ def test_import_documents_rest_interceptors(null_interceptor):
     ) as transcode, mock.patch.object(
         operation.Operation, "_set_result_from_operation"
     ), mock.patch.object(
-        transports.DocumentServiceRestInterceptor, "post_import_documents"
+        transports.DocumentServiceRestInterceptor, "post_purge_documents"
     ) as post, mock.patch.object(
-        transports.DocumentServiceRestInterceptor, "pre_import_documents"
+        transports.DocumentServiceRestInterceptor, "pre_purge_documents"
     ) as pre:
         pre.assert_not_called()
         post.assert_not_called()
-        pb_message = import_config.ImportDocumentsRequest.pb(
-            import_config.ImportDocumentsRequest()
+        pb_message = purge_config.PurgeDocumentsRequest.pb(
+            purge_config.PurgeDocumentsRequest()
         )
         transcode.return_value = {
             "method": "post",
@@ -5974,7 +6648,7 @@ def test_import_documents_rest_interceptors(null_interceptor):
             operations_pb2.Operation()
         )
 
-        request = import_config.ImportDocumentsRequest()
+        request = purge_config.PurgeDocumentsRequest()
         metadata = [
             ("key", "val"),
             ("cephalopod", "squid"),
@@ -5982,7 +6656,7 @@ def test_import_documents_rest_interceptors(null_interceptor):
         pre.return_value = request, metadata
         post.return_value = operations_pb2.Operation()
 
-        client.import_documents(
+        client.purge_documents(
             request,
             metadata=[
                 ("key", "val"),
@@ -5994,8 +6668,8 @@ def test_import_documents_rest_interceptors(null_interceptor):
         post.assert_called_once()
 
 
-def test_import_documents_rest_bad_request(
-    transport: str = "rest", request_type=import_config.ImportDocumentsRequest
+def test_purge_documents_rest_bad_request(
+    transport: str = "rest", request_type=purge_config.PurgeDocumentsRequest
 ):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
@@ -6017,10 +6691,10 @@ def test_import_documents_rest_bad_request(
         response_value.status_code = 400
         response_value.request = Request()
         req.return_value = response_value
-        client.import_documents(request)
+        client.purge_documents(request)
 
 
-def test_import_documents_rest_error():
+def test_purge_documents_rest_error():
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(), transport="rest"
     )
@@ -6029,11 +6703,11 @@ def test_import_documents_rest_error():
 @pytest.mark.parametrize(
     "request_type",
     [
-        purge_config.PurgeDocumentsRequest,
+        document_service.BatchGetDocumentsMetadataRequest,
         dict,
     ],
 )
-def test_purge_documents_rest(request_type):
+def test_batch_get_documents_metadata_rest(request_type):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
         transport="rest",
@@ -6048,22 +6722,26 @@ def test_purge_documents_rest(request_type):
     # Mock the http request call within the method and fake a response.
     with mock.patch.object(type(client.transport._session), "request") as req:
         # Designate an appropriate value for the returned response.
-        return_value = operations_pb2.Operation(name="operations/spam")
+        return_value = document_service.BatchGetDocumentsMetadataResponse()
 
         # Wrap the value into a proper Response obj
         response_value = Response()
         response_value.status_code = 200
+        # Convert return value to protobuf type
+        return_value = document_service.BatchGetDocumentsMetadataResponse.pb(
+            return_value
+        )
         json_return_value = json_format.MessageToJson(return_value)
 
         response_value._content = json_return_value.encode("UTF-8")
         req.return_value = response_value
-        response = client.purge_documents(request)
+        response = client.batch_get_documents_metadata(request)
 
     # Establish that the response is the type that we expect.
-    assert response.operation.name == "operations/spam"
+    assert isinstance(response, document_service.BatchGetDocumentsMetadataResponse)
 
 
-def test_purge_documents_rest_use_cached_wrapped_rpc():
+def test_batch_get_documents_metadata_rest_use_cached_wrapped_rpc():
     # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
     # instead of constructing them on each call
     with mock.patch("google.api_core.gapic_v1.method.wrap_method") as wrapper_fn:
@@ -6077,40 +6755,40 @@ def test_purge_documents_rest_use_cached_wrapped_rpc():
         wrapper_fn.reset_mock()
 
         # Ensure method has been cached
-        assert client._transport.purge_documents in client._transport._wrapped_methods
+        assert (
+            client._transport.batch_get_documents_metadata
+            in client._transport._wrapped_methods
+        )
 
         # Replace cached wrapped function with mock
         mock_rpc = mock.Mock()
         mock_rpc.return_value.name = (
             "foo"  # operation_request.operation in compute client(s) expect a string.
         )
-        client._transport._wrapped_methods[client._transport.purge_documents] = mock_rpc
+        client._transport._wrapped_methods[
+            client._transport.batch_get_documents_metadata
+        ] = mock_rpc
 
         request = {}
-        client.purge_documents(request)
+        client.batch_get_documents_metadata(request)
 
         # Establish that the underlying gRPC stub method was called.
         assert mock_rpc.call_count == 1
 
-        # Operation methods build a cached wrapper on first rpc call
-        # subsequent calls should use the cached wrapper
-        wrapper_fn.reset_mock()
-
-        client.purge_documents(request)
+        client.batch_get_documents_metadata(request)
 
         # Establish that a new wrapper was not created for this call
         assert wrapper_fn.call_count == 0
         assert mock_rpc.call_count == 2
 
 
-def test_purge_documents_rest_required_fields(
-    request_type=purge_config.PurgeDocumentsRequest,
+def test_batch_get_documents_metadata_rest_required_fields(
+    request_type=document_service.BatchGetDocumentsMetadataRequest,
 ):
     transport_class = transports.DocumentServiceRestTransport
 
     request_init = {}
     request_init["parent"] = ""
-    request_init["filter"] = ""
     request = request_type(**request_init)
     pb_request = request_type.pb(request)
     jsonified_request = json.loads(
@@ -6121,24 +6799,23 @@ def test_purge_documents_rest_required_fields(
 
     unset_fields = transport_class(
         credentials=ga_credentials.AnonymousCredentials()
-    ).purge_documents._get_unset_required_fields(jsonified_request)
+    ).batch_get_documents_metadata._get_unset_required_fields(jsonified_request)
     jsonified_request.update(unset_fields)
 
     # verify required fields with default values are now present
 
     jsonified_request["parent"] = "parent_value"
-    jsonified_request["filter"] = "filter_value"
 
     unset_fields = transport_class(
         credentials=ga_credentials.AnonymousCredentials()
-    ).purge_documents._get_unset_required_fields(jsonified_request)
+    ).batch_get_documents_metadata._get_unset_required_fields(jsonified_request)
+    # Check that path parameters and body parameters are not mixing in.
+    assert not set(unset_fields) - set(("matcher",))
     jsonified_request.update(unset_fields)
 
     # verify required fields with non-default values are left alone
     assert "parent" in jsonified_request
     assert jsonified_request["parent"] == "parent_value"
-    assert "filter" in jsonified_request
-    assert jsonified_request["filter"] == "filter_value"
 
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
@@ -6147,7 +6824,7 @@ def test_purge_documents_rest_required_fields(
     request = request_type(**request_init)
 
     # Designate an appropriate value for the returned response.
-    return_value = operations_pb2.Operation(name="operations/spam")
+    return_value = document_service.BatchGetDocumentsMetadataResponse()
     # Mock the http request call within the method and fake a response.
     with mock.patch.object(Session, "request") as req:
         # We need to mock transcode() because providing default values
@@ -6159,45 +6836,49 @@ def test_purge_documents_rest_required_fields(
             pb_request = request_type.pb(request)
             transcode_result = {
                 "uri": "v1/sample_method",
-                "method": "post",
+                "method": "get",
                 "query_params": pb_request,
             }
-            transcode_result["body"] = pb_request
             transcode.return_value = transcode_result
 
             response_value = Response()
             response_value.status_code = 200
+
+            # Convert return value to protobuf type
+            return_value = document_service.BatchGetDocumentsMetadataResponse.pb(
+                return_value
+            )
             json_return_value = json_format.MessageToJson(return_value)
 
             response_value._content = json_return_value.encode("UTF-8")
             req.return_value = response_value
 
-            response = client.purge_documents(request)
+            response = client.batch_get_documents_metadata(request)
 
             expected_params = [("$alt", "json;enum-encoding=int")]
             actual_params = req.call_args.kwargs["params"]
             assert expected_params == actual_params
 
 
-def test_purge_documents_rest_unset_required_fields():
+def test_batch_get_documents_metadata_rest_unset_required_fields():
     transport = transports.DocumentServiceRestTransport(
         credentials=ga_credentials.AnonymousCredentials
     )
 
-    unset_fields = transport.purge_documents._get_unset_required_fields({})
+    unset_fields = transport.batch_get_documents_metadata._get_unset_required_fields({})
     assert set(unset_fields) == (
-        set(())
+        set(("matcher",))
         & set(
             (
                 "parent",
-                "filter",
+                "matcher",
             )
         )
     )
 
 
 @pytest.mark.parametrize("null_interceptor", [True, False])
-def test_purge_documents_rest_interceptors(null_interceptor):
+def test_batch_get_documents_metadata_rest_interceptors(null_interceptor):
     transport = transports.DocumentServiceRestTransport(
         credentials=ga_credentials.AnonymousCredentials(),
         interceptor=None
@@ -6210,16 +6891,14 @@ def test_purge_documents_rest_interceptors(null_interceptor):
     ) as req, mock.patch.object(
         path_template, "transcode"
     ) as transcode, mock.patch.object(
-        operation.Operation, "_set_result_from_operation"
-    ), mock.patch.object(
-        transports.DocumentServiceRestInterceptor, "post_purge_documents"
+        transports.DocumentServiceRestInterceptor, "post_batch_get_documents_metadata"
     ) as post, mock.patch.object(
-        transports.DocumentServiceRestInterceptor, "pre_purge_documents"
+        transports.DocumentServiceRestInterceptor, "pre_batch_get_documents_metadata"
     ) as pre:
         pre.assert_not_called()
         post.assert_not_called()
-        pb_message = purge_config.PurgeDocumentsRequest.pb(
-            purge_config.PurgeDocumentsRequest()
+        pb_message = document_service.BatchGetDocumentsMetadataRequest.pb(
+            document_service.BatchGetDocumentsMetadataRequest()
         )
         transcode.return_value = {
             "method": "post",
@@ -6231,19 +6910,21 @@ def test_purge_documents_rest_interceptors(null_interceptor):
         req.return_value = Response()
         req.return_value.status_code = 200
         req.return_value.request = PreparedRequest()
-        req.return_value._content = json_format.MessageToJson(
-            operations_pb2.Operation()
+        req.return_value._content = (
+            document_service.BatchGetDocumentsMetadataResponse.to_json(
+                document_service.BatchGetDocumentsMetadataResponse()
+            )
         )
 
-        request = purge_config.PurgeDocumentsRequest()
+        request = document_service.BatchGetDocumentsMetadataRequest()
         metadata = [
             ("key", "val"),
             ("cephalopod", "squid"),
         ]
         pre.return_value = request, metadata
-        post.return_value = operations_pb2.Operation()
+        post.return_value = document_service.BatchGetDocumentsMetadataResponse()
 
-        client.purge_documents(
+        client.batch_get_documents_metadata(
             request,
             metadata=[
                 ("key", "val"),
@@ -6255,8 +6936,9 @@ def test_purge_documents_rest_interceptors(null_interceptor):
         post.assert_called_once()
 
 
-def test_purge_documents_rest_bad_request(
-    transport: str = "rest", request_type=purge_config.PurgeDocumentsRequest
+def test_batch_get_documents_metadata_rest_bad_request(
+    transport: str = "rest",
+    request_type=document_service.BatchGetDocumentsMetadataRequest,
 ):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
@@ -6278,10 +6960,71 @@ def test_purge_documents_rest_bad_request(
         response_value.status_code = 400
         response_value.request = Request()
         req.return_value = response_value
-        client.purge_documents(request)
+        client.batch_get_documents_metadata(request)
 
 
-def test_purge_documents_rest_error():
+def test_batch_get_documents_metadata_rest_flattened():
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="rest",
+    )
+
+    # Mock the http request call within the method and fake a response.
+    with mock.patch.object(type(client.transport._session), "request") as req:
+        # Designate an appropriate value for the returned response.
+        return_value = document_service.BatchGetDocumentsMetadataResponse()
+
+        # get arguments that satisfy an http rule for this method
+        sample_request = {
+            "parent": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4"
+        }
+
+        # get truthy value for each flattened field
+        mock_args = dict(
+            parent="parent_value",
+        )
+        mock_args.update(sample_request)
+
+        # Wrap the value into a proper Response obj
+        response_value = Response()
+        response_value.status_code = 200
+        # Convert return value to protobuf type
+        return_value = document_service.BatchGetDocumentsMetadataResponse.pb(
+            return_value
+        )
+        json_return_value = json_format.MessageToJson(return_value)
+        response_value._content = json_return_value.encode("UTF-8")
+        req.return_value = response_value
+
+        client.batch_get_documents_metadata(**mock_args)
+
+        # Establish that the underlying call was made with the expected
+        # request object values.
+        assert len(req.mock_calls) == 1
+        _, args, _ = req.mock_calls[0]
+        assert path_template.validate(
+            "%s/v1/{parent=projects/*/locations/*/dataStores/*/branches/*}/batchGetDocumentsMetadata"
+            % client.transport._host,
+            args[1],
+        )
+
+
+def test_batch_get_documents_metadata_rest_flattened_error(transport: str = "rest"):
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport=transport,
+    )
+
+    # Attempting to call a method with both a request object and flattened
+    # fields is an error.
+    with pytest.raises(ValueError):
+        client.batch_get_documents_metadata(
+            document_service.BatchGetDocumentsMetadataRequest(),
+            parent="parent_value",
+        )
+
+
+def test_batch_get_documents_metadata_rest_error():
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(), transport="rest"
     )
@@ -6433,6 +7176,7 @@ def test_document_service_base_transport():
         "delete_document",
         "import_documents",
         "purge_documents",
+        "batch_get_documents_metadata",
         "get_operation",
         "cancel_operation",
         "list_operations",
@@ -6737,6 +7481,9 @@ def test_document_service_client_transport_session_collision(transport_name):
     session1 = client1.transport.purge_documents._session
     session2 = client2.transport.purge_documents._session
     assert session1 != session2
+    session1 = client1.transport.batch_get_documents_metadata._session
+    session2 = client2.transport.batch_get_documents_metadata._session
+    assert session1 != session2
 
 
 def test_document_service_grpc_transport_channel():
diff --git a/packages/google-cloud-discoveryengine/tests/unit/gapic/discoveryengine_v1/test_search_tuning_service.py b/packages/google-cloud-discoveryengine/tests/unit/gapic/discoveryengine_v1/test_search_tuning_service.py
new file mode 100644
index 000000000000..7f47ed810349
--- /dev/null
+++ b/packages/google-cloud-discoveryengine/tests/unit/gapic/discoveryengine_v1/test_search_tuning_service.py
@@ -0,0 +1,3772 @@
+# -*- coding: utf-8 -*-
+# Copyright 2024 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+import os
+
+# try/except added for compatibility with python < 3.8
+try:
+    from unittest import mock
+    from unittest.mock import AsyncMock  # pragma: NO COVER
+except ImportError:  # pragma: NO COVER
+    import mock
+
+from collections.abc import Iterable
+import json
+import math
+
+from google.api_core import (
+    future,
+    gapic_v1,
+    grpc_helpers,
+    grpc_helpers_async,
+    operation,
+    operations_v1,
+    path_template,
+)
+from google.api_core import api_core_version, client_options
+from google.api_core import exceptions as core_exceptions
+from google.api_core import operation_async  # type: ignore
+from google.api_core import retry as retries
+import google.auth
+from google.auth import credentials as ga_credentials
+from google.auth.exceptions import MutualTLSChannelError
+from google.cloud.location import locations_pb2
+from google.longrunning import operations_pb2  # type: ignore
+from google.oauth2 import service_account
+from google.protobuf import json_format
+import grpc
+from grpc.experimental import aio
+from proto.marshal.rules import wrappers
+from proto.marshal.rules.dates import DurationRule, TimestampRule
+import pytest
+from requests import PreparedRequest, Request, Response
+from requests.sessions import Session
+
+from google.cloud.discoveryengine_v1.services.search_tuning_service import (
+    SearchTuningServiceAsyncClient,
+    SearchTuningServiceClient,
+    transports,
+)
+from google.cloud.discoveryengine_v1.types import (
+    custom_tuning_model,
+    import_config,
+    search_tuning_service,
+)
+
+
+def client_cert_source_callback():
+    return b"cert bytes", b"key bytes"
+
+
+# If default endpoint is localhost, then default mtls endpoint will be the same.
+# This method modifies the default endpoint so the client can produce a different
+# mtls endpoint for endpoint testing purposes.
+def modify_default_endpoint(client):
+    return (
+        "foo.googleapis.com"
+        if ("localhost" in client.DEFAULT_ENDPOINT)
+        else client.DEFAULT_ENDPOINT
+    )
+
+
+# If default endpoint template is localhost, then default mtls endpoint will be the same.
+# This method modifies the default endpoint template so the client can produce a different
+# mtls endpoint for endpoint testing purposes.
+def modify_default_endpoint_template(client):
+    return (
+        "test.{UNIVERSE_DOMAIN}"
+        if ("localhost" in client._DEFAULT_ENDPOINT_TEMPLATE)
+        else client._DEFAULT_ENDPOINT_TEMPLATE
+    )
+
+
+def test__get_default_mtls_endpoint():
+    api_endpoint = "example.googleapis.com"
+    api_mtls_endpoint = "example.mtls.googleapis.com"
+    sandbox_endpoint = "example.sandbox.googleapis.com"
+    sandbox_mtls_endpoint = "example.mtls.sandbox.googleapis.com"
+    non_googleapi = "api.example.com"
+
+    assert SearchTuningServiceClient._get_default_mtls_endpoint(None) is None
+    assert (
+        SearchTuningServiceClient._get_default_mtls_endpoint(api_endpoint)
+        == api_mtls_endpoint
+    )
+    assert (
+        SearchTuningServiceClient._get_default_mtls_endpoint(api_mtls_endpoint)
+        == api_mtls_endpoint
+    )
+    assert (
+        SearchTuningServiceClient._get_default_mtls_endpoint(sandbox_endpoint)
+        == sandbox_mtls_endpoint
+    )
+    assert (
+        SearchTuningServiceClient._get_default_mtls_endpoint(sandbox_mtls_endpoint)
+        == sandbox_mtls_endpoint
+    )
+    assert (
+        SearchTuningServiceClient._get_default_mtls_endpoint(non_googleapi)
+        == non_googleapi
+    )
+
+
+def test__read_environment_variables():
+    assert SearchTuningServiceClient._read_environment_variables() == (
+        False,
+        "auto",
+        None,
+    )
+
+    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": "true"}):
+        assert SearchTuningServiceClient._read_environment_variables() == (
+            True,
+            "auto",
+            None,
+        )
+
+    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": "false"}):
+        assert SearchTuningServiceClient._read_environment_variables() == (
+            False,
+            "auto",
+            None,
+        )
+
+    with mock.patch.dict(
+        os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": "Unsupported"}
+    ):
+        with pytest.raises(ValueError) as excinfo:
+            SearchTuningServiceClient._read_environment_variables()
+    assert (
+        str(excinfo.value)
+        == "Environment variable `GOOGLE_API_USE_CLIENT_CERTIFICATE` must be either `true` or `false`"
+    )
+
+    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "never"}):
+        assert SearchTuningServiceClient._read_environment_variables() == (
+            False,
+            "never",
+            None,
+        )
+
+    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "always"}):
+        assert SearchTuningServiceClient._read_environment_variables() == (
+            False,
+            "always",
+            None,
+        )
+
+    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "auto"}):
+        assert SearchTuningServiceClient._read_environment_variables() == (
+            False,
+            "auto",
+            None,
+        )
+
+    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "Unsupported"}):
+        with pytest.raises(MutualTLSChannelError) as excinfo:
+            SearchTuningServiceClient._read_environment_variables()
+    assert (
+        str(excinfo.value)
+        == "Environment variable `GOOGLE_API_USE_MTLS_ENDPOINT` must be `never`, `auto` or `always`"
+    )
+
+    with mock.patch.dict(os.environ, {"GOOGLE_CLOUD_UNIVERSE_DOMAIN": "foo.com"}):
+        assert SearchTuningServiceClient._read_environment_variables() == (
+            False,
+            "auto",
+            "foo.com",
+        )
+
+
+def test__get_client_cert_source():
+    mock_provided_cert_source = mock.Mock()
+    mock_default_cert_source = mock.Mock()
+
+    assert SearchTuningServiceClient._get_client_cert_source(None, False) is None
+    assert (
+        SearchTuningServiceClient._get_client_cert_source(
+            mock_provided_cert_source, False
+        )
+        is None
+    )
+    assert (
+        SearchTuningServiceClient._get_client_cert_source(
+            mock_provided_cert_source, True
+        )
+        == mock_provided_cert_source
+    )
+
+    with mock.patch(
+        "google.auth.transport.mtls.has_default_client_cert_source", return_value=True
+    ):
+        with mock.patch(
+            "google.auth.transport.mtls.default_client_cert_source",
+            return_value=mock_default_cert_source,
+        ):
+            assert (
+                SearchTuningServiceClient._get_client_cert_source(None, True)
+                is mock_default_cert_source
+            )
+            assert (
+                SearchTuningServiceClient._get_client_cert_source(
+                    mock_provided_cert_source, "true"
+                )
+                is mock_provided_cert_source
+            )
+
+
+@mock.patch.object(
+    SearchTuningServiceClient,
+    "_DEFAULT_ENDPOINT_TEMPLATE",
+    modify_default_endpoint_template(SearchTuningServiceClient),
+)
+@mock.patch.object(
+    SearchTuningServiceAsyncClient,
+    "_DEFAULT_ENDPOINT_TEMPLATE",
+    modify_default_endpoint_template(SearchTuningServiceAsyncClient),
+)
+def test__get_api_endpoint():
+    api_override = "foo.com"
+    mock_client_cert_source = mock.Mock()
+    default_universe = SearchTuningServiceClient._DEFAULT_UNIVERSE
+    default_endpoint = SearchTuningServiceClient._DEFAULT_ENDPOINT_TEMPLATE.format(
+        UNIVERSE_DOMAIN=default_universe
+    )
+    mock_universe = "bar.com"
+    mock_endpoint = SearchTuningServiceClient._DEFAULT_ENDPOINT_TEMPLATE.format(
+        UNIVERSE_DOMAIN=mock_universe
+    )
+
+    assert (
+        SearchTuningServiceClient._get_api_endpoint(
+            api_override, mock_client_cert_source, default_universe, "always"
+        )
+        == api_override
+    )
+    assert (
+        SearchTuningServiceClient._get_api_endpoint(
+            None, mock_client_cert_source, default_universe, "auto"
+        )
+        == SearchTuningServiceClient.DEFAULT_MTLS_ENDPOINT
+    )
+    assert (
+        SearchTuningServiceClient._get_api_endpoint(
+            None, None, default_universe, "auto"
+        )
+        == default_endpoint
+    )
+    assert (
+        SearchTuningServiceClient._get_api_endpoint(
+            None, None, default_universe, "always"
+        )
+        == SearchTuningServiceClient.DEFAULT_MTLS_ENDPOINT
+    )
+    assert (
+        SearchTuningServiceClient._get_api_endpoint(
+            None, mock_client_cert_source, default_universe, "always"
+        )
+        == SearchTuningServiceClient.DEFAULT_MTLS_ENDPOINT
+    )
+    assert (
+        SearchTuningServiceClient._get_api_endpoint(None, None, mock_universe, "never")
+        == mock_endpoint
+    )
+    assert (
+        SearchTuningServiceClient._get_api_endpoint(
+            None, None, default_universe, "never"
+        )
+        == default_endpoint
+    )
+
+    with pytest.raises(MutualTLSChannelError) as excinfo:
+        SearchTuningServiceClient._get_api_endpoint(
+            None, mock_client_cert_source, mock_universe, "auto"
+        )
+    assert (
+        str(excinfo.value)
+        == "mTLS is not supported in any universe other than googleapis.com."
+    )
+
+
+def test__get_universe_domain():
+    client_universe_domain = "foo.com"
+    universe_domain_env = "bar.com"
+
+    assert (
+        SearchTuningServiceClient._get_universe_domain(
+            client_universe_domain, universe_domain_env
+        )
+        == client_universe_domain
+    )
+    assert (
+        SearchTuningServiceClient._get_universe_domain(None, universe_domain_env)
+        == universe_domain_env
+    )
+    assert (
+        SearchTuningServiceClient._get_universe_domain(None, None)
+        == SearchTuningServiceClient._DEFAULT_UNIVERSE
+    )
+
+    with pytest.raises(ValueError) as excinfo:
+        SearchTuningServiceClient._get_universe_domain("", None)
+    assert str(excinfo.value) == "Universe Domain cannot be an empty string."
+
+
+@pytest.mark.parametrize(
+    "client_class,transport_class,transport_name",
+    [
+        (
+            SearchTuningServiceClient,
+            transports.SearchTuningServiceGrpcTransport,
+            "grpc",
+        ),
+        (
+            SearchTuningServiceClient,
+            transports.SearchTuningServiceRestTransport,
+            "rest",
+        ),
+    ],
+)
+def test__validate_universe_domain(client_class, transport_class, transport_name):
+    client = client_class(
+        transport=transport_class(credentials=ga_credentials.AnonymousCredentials())
+    )
+    assert client._validate_universe_domain() == True
+
+    # Test the case when universe is already validated.
+    assert client._validate_universe_domain() == True
+
+    if transport_name == "grpc":
+        # Test the case where credentials are provided by the
+        # `local_channel_credentials`. The default universes in both match.
+        channel = grpc.secure_channel(
+            "http://localhost/", grpc.local_channel_credentials()
+        )
+        client = client_class(transport=transport_class(channel=channel))
+        assert client._validate_universe_domain() == True
+
+        # Test the case where credentials do not exist: e.g. a transport is provided
+        # with no credentials. Validation should still succeed because there is no
+        # mismatch with non-existent credentials.
+        channel = grpc.secure_channel(
+            "http://localhost/", grpc.local_channel_credentials()
+        )
+        transport = transport_class(channel=channel)
+        transport._credentials = None
+        client = client_class(transport=transport)
+        assert client._validate_universe_domain() == True
+
+    # TODO: This is needed to cater for older versions of google-auth
+    # Make this test unconditional once the minimum supported version of
+    # google-auth becomes 2.23.0 or higher.
+    google_auth_major, google_auth_minor = [
+        int(part) for part in google.auth.__version__.split(".")[0:2]
+    ]
+    if google_auth_major > 2 or (google_auth_major == 2 and google_auth_minor >= 23):
+        credentials = ga_credentials.AnonymousCredentials()
+        credentials._universe_domain = "foo.com"
+        # Test the case when there is a universe mismatch from the credentials.
+        client = client_class(transport=transport_class(credentials=credentials))
+        with pytest.raises(ValueError) as excinfo:
+            client._validate_universe_domain()
+        assert (
+            str(excinfo.value)
+            == "The configured universe domain (googleapis.com) does not match the universe domain found in the credentials (foo.com). If you haven't configured the universe domain explicitly, `googleapis.com` is the default."
+        )
+
+        # Test the case when there is a universe mismatch from the client.
+        #
+        # TODO: Make this test unconditional once the minimum supported version of
+        # google-api-core becomes 2.15.0 or higher.
+        api_core_major, api_core_minor = [
+            int(part) for part in api_core_version.__version__.split(".")[0:2]
+        ]
+        if api_core_major > 2 or (api_core_major == 2 and api_core_minor >= 15):
+            client = client_class(
+                client_options={"universe_domain": "bar.com"},
+                transport=transport_class(
+                    credentials=ga_credentials.AnonymousCredentials(),
+                ),
+            )
+            with pytest.raises(ValueError) as excinfo:
+                client._validate_universe_domain()
+            assert (
+                str(excinfo.value)
+                == "The configured universe domain (bar.com) does not match the universe domain found in the credentials (googleapis.com). If you haven't configured the universe domain explicitly, `googleapis.com` is the default."
+            )
+
+    # Test that ValueError is raised if universe_domain is provided via client options and credentials is None
+    with pytest.raises(ValueError):
+        client._compare_universes("foo.bar", None)
+
+
+@pytest.mark.parametrize(
+    "client_class,transport_name",
+    [
+        (SearchTuningServiceClient, "grpc"),
+        (SearchTuningServiceAsyncClient, "grpc_asyncio"),
+        (SearchTuningServiceClient, "rest"),
+    ],
+)
+def test_search_tuning_service_client_from_service_account_info(
+    client_class, transport_name
+):
+    creds = ga_credentials.AnonymousCredentials()
+    with mock.patch.object(
+        service_account.Credentials, "from_service_account_info"
+    ) as factory:
+        factory.return_value = creds
+        info = {"valid": True}
+        client = client_class.from_service_account_info(info, transport=transport_name)
+        assert client.transport._credentials == creds
+        assert isinstance(client, client_class)
+
+        assert client.transport._host == (
+            "discoveryengine.googleapis.com:443"
+            if transport_name in ["grpc", "grpc_asyncio"]
+            else "https://discoveryengine.googleapis.com"
+        )
+
+
+@pytest.mark.parametrize(
+    "transport_class,transport_name",
+    [
+        (transports.SearchTuningServiceGrpcTransport, "grpc"),
+        (transports.SearchTuningServiceGrpcAsyncIOTransport, "grpc_asyncio"),
+        (transports.SearchTuningServiceRestTransport, "rest"),
+    ],
+)
+def test_search_tuning_service_client_service_account_always_use_jwt(
+    transport_class, transport_name
+):
+    with mock.patch.object(
+        service_account.Credentials, "with_always_use_jwt_access", create=True
+    ) as use_jwt:
+        creds = service_account.Credentials(None, None, None)
+        transport = transport_class(credentials=creds, always_use_jwt_access=True)
+        use_jwt.assert_called_once_with(True)
+
+    with mock.patch.object(
+        service_account.Credentials, "with_always_use_jwt_access", create=True
+    ) as use_jwt:
+        creds = service_account.Credentials(None, None, None)
+        transport = transport_class(credentials=creds, always_use_jwt_access=False)
+        use_jwt.assert_not_called()
+
+
+@pytest.mark.parametrize(
+    "client_class,transport_name",
+    [
+        (SearchTuningServiceClient, "grpc"),
+        (SearchTuningServiceAsyncClient, "grpc_asyncio"),
+        (SearchTuningServiceClient, "rest"),
+    ],
+)
+def test_search_tuning_service_client_from_service_account_file(
+    client_class, transport_name
+):
+    creds = ga_credentials.AnonymousCredentials()
+    with mock.patch.object(
+        service_account.Credentials, "from_service_account_file"
+    ) as factory:
+        factory.return_value = creds
+        client = client_class.from_service_account_file(
+            "dummy/file/path.json", transport=transport_name
+        )
+        assert client.transport._credentials == creds
+        assert isinstance(client, client_class)
+
+        client = client_class.from_service_account_json(
+            "dummy/file/path.json", transport=transport_name
+        )
+        assert client.transport._credentials == creds
+        assert isinstance(client, client_class)
+
+        assert client.transport._host == (
+            "discoveryengine.googleapis.com:443"
+            if transport_name in ["grpc", "grpc_asyncio"]
+            else "https://discoveryengine.googleapis.com"
+        )
+
+
+def test_search_tuning_service_client_get_transport_class():
+    transport = SearchTuningServiceClient.get_transport_class()
+    available_transports = [
+        transports.SearchTuningServiceGrpcTransport,
+        transports.SearchTuningServiceRestTransport,
+    ]
+    assert transport in available_transports
+
+    transport = SearchTuningServiceClient.get_transport_class("grpc")
+    assert transport == transports.SearchTuningServiceGrpcTransport
+
+
+@pytest.mark.parametrize(
+    "client_class,transport_class,transport_name",
+    [
+        (
+            SearchTuningServiceClient,
+            transports.SearchTuningServiceGrpcTransport,
+            "grpc",
+        ),
+        (
+            SearchTuningServiceAsyncClient,
+            transports.SearchTuningServiceGrpcAsyncIOTransport,
+            "grpc_asyncio",
+        ),
+        (
+            SearchTuningServiceClient,
+            transports.SearchTuningServiceRestTransport,
+            "rest",
+        ),
+    ],
+)
+@mock.patch.object(
+    SearchTuningServiceClient,
+    "_DEFAULT_ENDPOINT_TEMPLATE",
+    modify_default_endpoint_template(SearchTuningServiceClient),
+)
+@mock.patch.object(
+    SearchTuningServiceAsyncClient,
+    "_DEFAULT_ENDPOINT_TEMPLATE",
+    modify_default_endpoint_template(SearchTuningServiceAsyncClient),
+)
+def test_search_tuning_service_client_client_options(
+    client_class, transport_class, transport_name
+):
+    # Check that if channel is provided we won't create a new one.
+    with mock.patch.object(SearchTuningServiceClient, "get_transport_class") as gtc:
+        transport = transport_class(credentials=ga_credentials.AnonymousCredentials())
+        client = client_class(transport=transport)
+        gtc.assert_not_called()
+
+    # Check that if channel is provided via str we will create a new one.
+    with mock.patch.object(SearchTuningServiceClient, "get_transport_class") as gtc:
+        client = client_class(transport=transport_name)
+        gtc.assert_called()
+
+    # Check the case api_endpoint is provided.
+    options = client_options.ClientOptions(api_endpoint="squid.clam.whelk")
+    with mock.patch.object(transport_class, "__init__") as patched:
+        patched.return_value = None
+        client = client_class(transport=transport_name, client_options=options)
+        patched.assert_called_once_with(
+            credentials=None,
+            credentials_file=None,
+            host="squid.clam.whelk",
+            scopes=None,
+            client_cert_source_for_mtls=None,
+            quota_project_id=None,
+            client_info=transports.base.DEFAULT_CLIENT_INFO,
+            always_use_jwt_access=True,
+            api_audience=None,
+        )
+
+    # Check the case api_endpoint is not provided and GOOGLE_API_USE_MTLS_ENDPOINT is
+    # "never".
+    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "never"}):
+        with mock.patch.object(transport_class, "__init__") as patched:
+            patched.return_value = None
+            client = client_class(transport=transport_name)
+            patched.assert_called_once_with(
+                credentials=None,
+                credentials_file=None,
+                host=client._DEFAULT_ENDPOINT_TEMPLATE.format(
+                    UNIVERSE_DOMAIN=client._DEFAULT_UNIVERSE
+                ),
+                scopes=None,
+                client_cert_source_for_mtls=None,
+                quota_project_id=None,
+                client_info=transports.base.DEFAULT_CLIENT_INFO,
+                always_use_jwt_access=True,
+                api_audience=None,
+            )
+
+    # Check the case api_endpoint is not provided and GOOGLE_API_USE_MTLS_ENDPOINT is
+    # "always".
+    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "always"}):
+        with mock.patch.object(transport_class, "__init__") as patched:
+            patched.return_value = None
+            client = client_class(transport=transport_name)
+            patched.assert_called_once_with(
+                credentials=None,
+                credentials_file=None,
+                host=client.DEFAULT_MTLS_ENDPOINT,
+                scopes=None,
+                client_cert_source_for_mtls=None,
+                quota_project_id=None,
+                client_info=transports.base.DEFAULT_CLIENT_INFO,
+                always_use_jwt_access=True,
+                api_audience=None,
+            )
+
+    # Check the case api_endpoint is not provided and GOOGLE_API_USE_MTLS_ENDPOINT has
+    # unsupported value.
+    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "Unsupported"}):
+        with pytest.raises(MutualTLSChannelError) as excinfo:
+            client = client_class(transport=transport_name)
+    assert (
+        str(excinfo.value)
+        == "Environment variable `GOOGLE_API_USE_MTLS_ENDPOINT` must be `never`, `auto` or `always`"
+    )
+
+    # Check the case GOOGLE_API_USE_CLIENT_CERTIFICATE has unsupported value.
+    with mock.patch.dict(
+        os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": "Unsupported"}
+    ):
+        with pytest.raises(ValueError) as excinfo:
+            client = client_class(transport=transport_name)
+    assert (
+        str(excinfo.value)
+        == "Environment variable `GOOGLE_API_USE_CLIENT_CERTIFICATE` must be either `true` or `false`"
+    )
+
+    # Check the case quota_project_id is provided
+    options = client_options.ClientOptions(quota_project_id="octopus")
+    with mock.patch.object(transport_class, "__init__") as patched:
+        patched.return_value = None
+        client = client_class(client_options=options, transport=transport_name)
+        patched.assert_called_once_with(
+            credentials=None,
+            credentials_file=None,
+            host=client._DEFAULT_ENDPOINT_TEMPLATE.format(
+                UNIVERSE_DOMAIN=client._DEFAULT_UNIVERSE
+            ),
+            scopes=None,
+            client_cert_source_for_mtls=None,
+            quota_project_id="octopus",
+            client_info=transports.base.DEFAULT_CLIENT_INFO,
+            always_use_jwt_access=True,
+            api_audience=None,
+        )
+    # Check the case api_endpoint is provided
+    options = client_options.ClientOptions(
+        api_audience="https://language.googleapis.com"
+    )
+    with mock.patch.object(transport_class, "__init__") as patched:
+        patched.return_value = None
+        client = client_class(client_options=options, transport=transport_name)
+        patched.assert_called_once_with(
+            credentials=None,
+            credentials_file=None,
+            host=client._DEFAULT_ENDPOINT_TEMPLATE.format(
+                UNIVERSE_DOMAIN=client._DEFAULT_UNIVERSE
+            ),
+            scopes=None,
+            client_cert_source_for_mtls=None,
+            quota_project_id=None,
+            client_info=transports.base.DEFAULT_CLIENT_INFO,
+            always_use_jwt_access=True,
+            api_audience="https://language.googleapis.com",
+        )
+
+
+@pytest.mark.parametrize(
+    "client_class,transport_class,transport_name,use_client_cert_env",
+    [
+        (
+            SearchTuningServiceClient,
+            transports.SearchTuningServiceGrpcTransport,
+            "grpc",
+            "true",
+        ),
+        (
+            SearchTuningServiceAsyncClient,
+            transports.SearchTuningServiceGrpcAsyncIOTransport,
+            "grpc_asyncio",
+            "true",
+        ),
+        (
+            SearchTuningServiceClient,
+            transports.SearchTuningServiceGrpcTransport,
+            "grpc",
+            "false",
+        ),
+        (
+            SearchTuningServiceAsyncClient,
+            transports.SearchTuningServiceGrpcAsyncIOTransport,
+            "grpc_asyncio",
+            "false",
+        ),
+        (
+            SearchTuningServiceClient,
+            transports.SearchTuningServiceRestTransport,
+            "rest",
+            "true",
+        ),
+        (
+            SearchTuningServiceClient,
+            transports.SearchTuningServiceRestTransport,
+            "rest",
+            "false",
+        ),
+    ],
+)
+@mock.patch.object(
+    SearchTuningServiceClient,
+    "_DEFAULT_ENDPOINT_TEMPLATE",
+    modify_default_endpoint_template(SearchTuningServiceClient),
+)
+@mock.patch.object(
+    SearchTuningServiceAsyncClient,
+    "_DEFAULT_ENDPOINT_TEMPLATE",
+    modify_default_endpoint_template(SearchTuningServiceAsyncClient),
+)
+@mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "auto"})
+def test_search_tuning_service_client_mtls_env_auto(
+    client_class, transport_class, transport_name, use_client_cert_env
+):
+    # This tests the endpoint autoswitch behavior. Endpoint is autoswitched to the default
+    # mtls endpoint, if GOOGLE_API_USE_CLIENT_CERTIFICATE is "true" and client cert exists.
+
+    # Check the case client_cert_source is provided. Whether client cert is used depends on
+    # GOOGLE_API_USE_CLIENT_CERTIFICATE value.
+    with mock.patch.dict(
+        os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": use_client_cert_env}
+    ):
+        options = client_options.ClientOptions(
+            client_cert_source=client_cert_source_callback
+        )
+        with mock.patch.object(transport_class, "__init__") as patched:
+            patched.return_value = None
+            client = client_class(client_options=options, transport=transport_name)
+
+            if use_client_cert_env == "false":
+                expected_client_cert_source = None
+                expected_host = client._DEFAULT_ENDPOINT_TEMPLATE.format(
+                    UNIVERSE_DOMAIN=client._DEFAULT_UNIVERSE
+                )
+            else:
+                expected_client_cert_source = client_cert_source_callback
+                expected_host = client.DEFAULT_MTLS_ENDPOINT
+
+            patched.assert_called_once_with(
+                credentials=None,
+                credentials_file=None,
+                host=expected_host,
+                scopes=None,
+                client_cert_source_for_mtls=expected_client_cert_source,
+                quota_project_id=None,
+                client_info=transports.base.DEFAULT_CLIENT_INFO,
+                always_use_jwt_access=True,
+                api_audience=None,
+            )
+
+    # Check the case ADC client cert is provided. Whether client cert is used depends on
+    # GOOGLE_API_USE_CLIENT_CERTIFICATE value.
+    with mock.patch.dict(
+        os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": use_client_cert_env}
+    ):
+        with mock.patch.object(transport_class, "__init__") as patched:
+            with mock.patch(
+                "google.auth.transport.mtls.has_default_client_cert_source",
+                return_value=True,
+            ):
+                with mock.patch(
+                    "google.auth.transport.mtls.default_client_cert_source",
+                    return_value=client_cert_source_callback,
+                ):
+                    if use_client_cert_env == "false":
+                        expected_host = client._DEFAULT_ENDPOINT_TEMPLATE.format(
+                            UNIVERSE_DOMAIN=client._DEFAULT_UNIVERSE
+                        )
+                        expected_client_cert_source = None
+                    else:
+                        expected_host = client.DEFAULT_MTLS_ENDPOINT
+                        expected_client_cert_source = client_cert_source_callback
+
+                    patched.return_value = None
+                    client = client_class(transport=transport_name)
+                    patched.assert_called_once_with(
+                        credentials=None,
+                        credentials_file=None,
+                        host=expected_host,
+                        scopes=None,
+                        client_cert_source_for_mtls=expected_client_cert_source,
+                        quota_project_id=None,
+                        client_info=transports.base.DEFAULT_CLIENT_INFO,
+                        always_use_jwt_access=True,
+                        api_audience=None,
+                    )
+
+    # Check the case client_cert_source and ADC client cert are not provided.
+    with mock.patch.dict(
+        os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": use_client_cert_env}
+    ):
+        with mock.patch.object(transport_class, "__init__") as patched:
+            with mock.patch(
+                "google.auth.transport.mtls.has_default_client_cert_source",
+                return_value=False,
+            ):
+                patched.return_value = None
+                client = client_class(transport=transport_name)
+                patched.assert_called_once_with(
+                    credentials=None,
+                    credentials_file=None,
+                    host=client._DEFAULT_ENDPOINT_TEMPLATE.format(
+                        UNIVERSE_DOMAIN=client._DEFAULT_UNIVERSE
+                    ),
+                    scopes=None,
+                    client_cert_source_for_mtls=None,
+                    quota_project_id=None,
+                    client_info=transports.base.DEFAULT_CLIENT_INFO,
+                    always_use_jwt_access=True,
+                    api_audience=None,
+                )
+
+
+@pytest.mark.parametrize(
+    "client_class", [SearchTuningServiceClient, SearchTuningServiceAsyncClient]
+)
+@mock.patch.object(
+    SearchTuningServiceClient,
+    "DEFAULT_ENDPOINT",
+    modify_default_endpoint(SearchTuningServiceClient),
+)
+@mock.patch.object(
+    SearchTuningServiceAsyncClient,
+    "DEFAULT_ENDPOINT",
+    modify_default_endpoint(SearchTuningServiceAsyncClient),
+)
+def test_search_tuning_service_client_get_mtls_endpoint_and_cert_source(client_class):
+    mock_client_cert_source = mock.Mock()
+
+    # Test the case GOOGLE_API_USE_CLIENT_CERTIFICATE is "true".
+    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": "true"}):
+        mock_api_endpoint = "foo"
+        options = client_options.ClientOptions(
+            client_cert_source=mock_client_cert_source, api_endpoint=mock_api_endpoint
+        )
+        api_endpoint, cert_source = client_class.get_mtls_endpoint_and_cert_source(
+            options
+        )
+        assert api_endpoint == mock_api_endpoint
+        assert cert_source == mock_client_cert_source
+
+    # Test the case GOOGLE_API_USE_CLIENT_CERTIFICATE is "false".
+    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": "false"}):
+        mock_client_cert_source = mock.Mock()
+        mock_api_endpoint = "foo"
+        options = client_options.ClientOptions(
+            client_cert_source=mock_client_cert_source, api_endpoint=mock_api_endpoint
+        )
+        api_endpoint, cert_source = client_class.get_mtls_endpoint_and_cert_source(
+            options
+        )
+        assert api_endpoint == mock_api_endpoint
+        assert cert_source is None
+
+    # Test the case GOOGLE_API_USE_MTLS_ENDPOINT is "never".
+    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "never"}):
+        api_endpoint, cert_source = client_class.get_mtls_endpoint_and_cert_source()
+        assert api_endpoint == client_class.DEFAULT_ENDPOINT
+        assert cert_source is None
+
+    # Test the case GOOGLE_API_USE_MTLS_ENDPOINT is "always".
+    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "always"}):
+        api_endpoint, cert_source = client_class.get_mtls_endpoint_and_cert_source()
+        assert api_endpoint == client_class.DEFAULT_MTLS_ENDPOINT
+        assert cert_source is None
+
+    # Test the case GOOGLE_API_USE_MTLS_ENDPOINT is "auto" and default cert doesn't exist.
+    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": "true"}):
+        with mock.patch(
+            "google.auth.transport.mtls.has_default_client_cert_source",
+            return_value=False,
+        ):
+            api_endpoint, cert_source = client_class.get_mtls_endpoint_and_cert_source()
+            assert api_endpoint == client_class.DEFAULT_ENDPOINT
+            assert cert_source is None
+
+    # Test the case GOOGLE_API_USE_MTLS_ENDPOINT is "auto" and default cert exists.
+    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": "true"}):
+        with mock.patch(
+            "google.auth.transport.mtls.has_default_client_cert_source",
+            return_value=True,
+        ):
+            with mock.patch(
+                "google.auth.transport.mtls.default_client_cert_source",
+                return_value=mock_client_cert_source,
+            ):
+                (
+                    api_endpoint,
+                    cert_source,
+                ) = client_class.get_mtls_endpoint_and_cert_source()
+                assert api_endpoint == client_class.DEFAULT_MTLS_ENDPOINT
+                assert cert_source == mock_client_cert_source
+
+    # Check the case api_endpoint is not provided and GOOGLE_API_USE_MTLS_ENDPOINT has
+    # unsupported value.
+    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "Unsupported"}):
+        with pytest.raises(MutualTLSChannelError) as excinfo:
+            client_class.get_mtls_endpoint_and_cert_source()
+
+        assert (
+            str(excinfo.value)
+            == "Environment variable `GOOGLE_API_USE_MTLS_ENDPOINT` must be `never`, `auto` or `always`"
+        )
+
+    # Check the case GOOGLE_API_USE_CLIENT_CERTIFICATE has unsupported value.
+    with mock.patch.dict(
+        os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": "Unsupported"}
+    ):
+        with pytest.raises(ValueError) as excinfo:
+            client_class.get_mtls_endpoint_and_cert_source()
+
+        assert (
+            str(excinfo.value)
+            == "Environment variable `GOOGLE_API_USE_CLIENT_CERTIFICATE` must be either `true` or `false`"
+        )
+
+
+@pytest.mark.parametrize(
+    "client_class", [SearchTuningServiceClient, SearchTuningServiceAsyncClient]
+)
+@mock.patch.object(
+    SearchTuningServiceClient,
+    "_DEFAULT_ENDPOINT_TEMPLATE",
+    modify_default_endpoint_template(SearchTuningServiceClient),
+)
+@mock.patch.object(
+    SearchTuningServiceAsyncClient,
+    "_DEFAULT_ENDPOINT_TEMPLATE",
+    modify_default_endpoint_template(SearchTuningServiceAsyncClient),
+)
+def test_search_tuning_service_client_client_api_endpoint(client_class):
+    mock_client_cert_source = client_cert_source_callback
+    api_override = "foo.com"
+    default_universe = SearchTuningServiceClient._DEFAULT_UNIVERSE
+    default_endpoint = SearchTuningServiceClient._DEFAULT_ENDPOINT_TEMPLATE.format(
+        UNIVERSE_DOMAIN=default_universe
+    )
+    mock_universe = "bar.com"
+    mock_endpoint = SearchTuningServiceClient._DEFAULT_ENDPOINT_TEMPLATE.format(
+        UNIVERSE_DOMAIN=mock_universe
+    )
+
+    # If ClientOptions.api_endpoint is set and GOOGLE_API_USE_CLIENT_CERTIFICATE="true",
+    # use ClientOptions.api_endpoint as the api endpoint regardless.
+    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": "true"}):
+        with mock.patch(
+            "google.auth.transport.requests.AuthorizedSession.configure_mtls_channel"
+        ):
+            options = client_options.ClientOptions(
+                client_cert_source=mock_client_cert_source, api_endpoint=api_override
+            )
+            client = client_class(
+                client_options=options,
+                credentials=ga_credentials.AnonymousCredentials(),
+            )
+            assert client.api_endpoint == api_override
+
+    # If ClientOptions.api_endpoint is not set and GOOGLE_API_USE_MTLS_ENDPOINT="never",
+    # use the _DEFAULT_ENDPOINT_TEMPLATE populated with GDU as the api endpoint.
+    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "never"}):
+        client = client_class(credentials=ga_credentials.AnonymousCredentials())
+        assert client.api_endpoint == default_endpoint
+
+    # If ClientOptions.api_endpoint is not set and GOOGLE_API_USE_MTLS_ENDPOINT="always",
+    # use the DEFAULT_MTLS_ENDPOINT as the api endpoint.
+    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "always"}):
+        client = client_class(credentials=ga_credentials.AnonymousCredentials())
+        assert client.api_endpoint == client_class.DEFAULT_MTLS_ENDPOINT
+
+    # If ClientOptions.api_endpoint is not set, GOOGLE_API_USE_MTLS_ENDPOINT="auto" (default),
+    # GOOGLE_API_USE_CLIENT_CERTIFICATE="false" (default), default cert source doesn't exist,
+    # and ClientOptions.universe_domain="bar.com",
+    # use the _DEFAULT_ENDPOINT_TEMPLATE populated with universe domain as the api endpoint.
+    options = client_options.ClientOptions()
+    universe_exists = hasattr(options, "universe_domain")
+    if universe_exists:
+        options = client_options.ClientOptions(universe_domain=mock_universe)
+        client = client_class(
+            client_options=options, credentials=ga_credentials.AnonymousCredentials()
+        )
+    else:
+        client = client_class(
+            client_options=options, credentials=ga_credentials.AnonymousCredentials()
+        )
+    assert client.api_endpoint == (
+        mock_endpoint if universe_exists else default_endpoint
+    )
+    assert client.universe_domain == (
+        mock_universe if universe_exists else default_universe
+    )
+
+    # If ClientOptions does not have a universe domain attribute and GOOGLE_API_USE_MTLS_ENDPOINT="never",
+    # use the _DEFAULT_ENDPOINT_TEMPLATE populated with GDU as the api endpoint.
+    options = client_options.ClientOptions()
+    if hasattr(options, "universe_domain"):
+        delattr(options, "universe_domain")
+    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "never"}):
+        client = client_class(
+            client_options=options, credentials=ga_credentials.AnonymousCredentials()
+        )
+        assert client.api_endpoint == default_endpoint
+
+
+@pytest.mark.parametrize(
+    "client_class,transport_class,transport_name",
+    [
+        (
+            SearchTuningServiceClient,
+            transports.SearchTuningServiceGrpcTransport,
+            "grpc",
+        ),
+        (
+            SearchTuningServiceAsyncClient,
+            transports.SearchTuningServiceGrpcAsyncIOTransport,
+            "grpc_asyncio",
+        ),
+        (
+            SearchTuningServiceClient,
+            transports.SearchTuningServiceRestTransport,
+            "rest",
+        ),
+    ],
+)
+def test_search_tuning_service_client_client_options_scopes(
+    client_class, transport_class, transport_name
+):
+    # Check the case scopes are provided.
+    options = client_options.ClientOptions(
+        scopes=["1", "2"],
+    )
+    with mock.patch.object(transport_class, "__init__") as patched:
+        patched.return_value = None
+        client = client_class(client_options=options, transport=transport_name)
+        patched.assert_called_once_with(
+            credentials=None,
+            credentials_file=None,
+            host=client._DEFAULT_ENDPOINT_TEMPLATE.format(
+                UNIVERSE_DOMAIN=client._DEFAULT_UNIVERSE
+            ),
+            scopes=["1", "2"],
+            client_cert_source_for_mtls=None,
+            quota_project_id=None,
+            client_info=transports.base.DEFAULT_CLIENT_INFO,
+            always_use_jwt_access=True,
+            api_audience=None,
+        )
+
+
+@pytest.mark.parametrize(
+    "client_class,transport_class,transport_name,grpc_helpers",
+    [
+        (
+            SearchTuningServiceClient,
+            transports.SearchTuningServiceGrpcTransport,
+            "grpc",
+            grpc_helpers,
+        ),
+        (
+            SearchTuningServiceAsyncClient,
+            transports.SearchTuningServiceGrpcAsyncIOTransport,
+            "grpc_asyncio",
+            grpc_helpers_async,
+        ),
+        (
+            SearchTuningServiceClient,
+            transports.SearchTuningServiceRestTransport,
+            "rest",
+            None,
+        ),
+    ],
+)
+def test_search_tuning_service_client_client_options_credentials_file(
+    client_class, transport_class, transport_name, grpc_helpers
+):
+    # Check the case credentials file is provided.
+    options = client_options.ClientOptions(credentials_file="credentials.json")
+
+    with mock.patch.object(transport_class, "__init__") as patched:
+        patched.return_value = None
+        client = client_class(client_options=options, transport=transport_name)
+        patched.assert_called_once_with(
+            credentials=None,
+            credentials_file="credentials.json",
+            host=client._DEFAULT_ENDPOINT_TEMPLATE.format(
+                UNIVERSE_DOMAIN=client._DEFAULT_UNIVERSE
+            ),
+            scopes=None,
+            client_cert_source_for_mtls=None,
+            quota_project_id=None,
+            client_info=transports.base.DEFAULT_CLIENT_INFO,
+            always_use_jwt_access=True,
+            api_audience=None,
+        )
+
+
+def test_search_tuning_service_client_client_options_from_dict():
+    with mock.patch(
+        "google.cloud.discoveryengine_v1.services.search_tuning_service.transports.SearchTuningServiceGrpcTransport.__init__"
+    ) as grpc_transport:
+        grpc_transport.return_value = None
+        client = SearchTuningServiceClient(
+            client_options={"api_endpoint": "squid.clam.whelk"}
+        )
+        grpc_transport.assert_called_once_with(
+            credentials=None,
+            credentials_file=None,
+            host="squid.clam.whelk",
+            scopes=None,
+            client_cert_source_for_mtls=None,
+            quota_project_id=None,
+            client_info=transports.base.DEFAULT_CLIENT_INFO,
+            always_use_jwt_access=True,
+            api_audience=None,
+        )
+
+
+@pytest.mark.parametrize(
+    "client_class,transport_class,transport_name,grpc_helpers",
+    [
+        (
+            SearchTuningServiceClient,
+            transports.SearchTuningServiceGrpcTransport,
+            "grpc",
+            grpc_helpers,
+        ),
+        (
+            SearchTuningServiceAsyncClient,
+            transports.SearchTuningServiceGrpcAsyncIOTransport,
+            "grpc_asyncio",
+            grpc_helpers_async,
+        ),
+    ],
+)
+def test_search_tuning_service_client_create_channel_credentials_file(
+    client_class, transport_class, transport_name, grpc_helpers
+):
+    # Check the case credentials file is provided.
+    options = client_options.ClientOptions(credentials_file="credentials.json")
+
+    with mock.patch.object(transport_class, "__init__") as patched:
+        patched.return_value = None
+        client = client_class(client_options=options, transport=transport_name)
+        patched.assert_called_once_with(
+            credentials=None,
+            credentials_file="credentials.json",
+            host=client._DEFAULT_ENDPOINT_TEMPLATE.format(
+                UNIVERSE_DOMAIN=client._DEFAULT_UNIVERSE
+            ),
+            scopes=None,
+            client_cert_source_for_mtls=None,
+            quota_project_id=None,
+            client_info=transports.base.DEFAULT_CLIENT_INFO,
+            always_use_jwt_access=True,
+            api_audience=None,
+        )
+
+    # test that the credentials from file are saved and used as the credentials.
+    with mock.patch.object(
+        google.auth, "load_credentials_from_file", autospec=True
+    ) as load_creds, mock.patch.object(
+        google.auth, "default", autospec=True
+    ) as adc, mock.patch.object(
+        grpc_helpers, "create_channel"
+    ) as create_channel:
+        creds = ga_credentials.AnonymousCredentials()
+        file_creds = ga_credentials.AnonymousCredentials()
+        load_creds.return_value = (file_creds, None)
+        adc.return_value = (creds, None)
+        client = client_class(client_options=options, transport=transport_name)
+        create_channel.assert_called_with(
+            "discoveryengine.googleapis.com:443",
+            credentials=file_creds,
+            credentials_file=None,
+            quota_project_id=None,
+            default_scopes=("https://www.googleapis.com/auth/cloud-platform",),
+            scopes=None,
+            default_host="discoveryengine.googleapis.com",
+            ssl_credentials=None,
+            options=[
+                ("grpc.max_send_message_length", -1),
+                ("grpc.max_receive_message_length", -1),
+            ],
+        )
+
+
+@pytest.mark.parametrize(
+    "request_type",
+    [
+        search_tuning_service.TrainCustomModelRequest,
+        dict,
+    ],
+)
+def test_train_custom_model(request_type, transport: str = "grpc"):
+    client = SearchTuningServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport=transport,
+    )
+
+    # Everything is optional in proto3 as far as the runtime is concerned,
+    # and we are mocking out the actual API, so just send an empty request.
+    request = request_type()
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.train_custom_model), "__call__"
+    ) as call:
+        # Designate an appropriate return value for the call.
+        call.return_value = operations_pb2.Operation(name="operations/spam")
+        response = client.train_custom_model(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert len(call.mock_calls) == 1
+        _, args, _ = call.mock_calls[0]
+        request = search_tuning_service.TrainCustomModelRequest()
+        assert args[0] == request
+
+    # Establish that the response is the type that we expect.
+    assert isinstance(response, future.Future)
+
+
+def test_train_custom_model_empty_call():
+    # This test is a coverage failsafe to make sure that totally empty calls,
+    # i.e. request == None and no flattened fields passed, work.
+    client = SearchTuningServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="grpc",
+    )
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.train_custom_model), "__call__"
+    ) as call:
+        call.return_value.name = (
+            "foo"  # operation_request.operation in compute client(s) expect a string.
+        )
+        client.train_custom_model()
+        call.assert_called()
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == search_tuning_service.TrainCustomModelRequest()
+
+
+def test_train_custom_model_non_empty_request_with_auto_populated_field():
+    # This test is a coverage failsafe to make sure that UUID4 fields are
+    # automatically populated, according to AIP-4235, with non-empty requests.
+    client = SearchTuningServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="grpc",
+    )
+
+    # Populate all string fields in the request which are not UUID4
+    # since we want to check that UUID4 are populated automatically
+    # if they meet the requirements of AIP 4235.
+    request = search_tuning_service.TrainCustomModelRequest(
+        data_store="data_store_value",
+        model_type="model_type_value",
+        model_id="model_id_value",
+    )
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.train_custom_model), "__call__"
+    ) as call:
+        call.return_value.name = (
+            "foo"  # operation_request.operation in compute client(s) expect a string.
+        )
+        client.train_custom_model(request=request)
+        call.assert_called()
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == search_tuning_service.TrainCustomModelRequest(
+            data_store="data_store_value",
+            model_type="model_type_value",
+            model_id="model_id_value",
+        )
+
+
+def test_train_custom_model_use_cached_wrapped_rpc():
+    # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
+    # instead of constructing them on each call
+    with mock.patch("google.api_core.gapic_v1.method.wrap_method") as wrapper_fn:
+        client = SearchTuningServiceClient(
+            credentials=ga_credentials.AnonymousCredentials(),
+            transport="grpc",
+        )
+
+        # Should wrap all calls on client creation
+        assert wrapper_fn.call_count > 0
+        wrapper_fn.reset_mock()
+
+        # Ensure method has been cached
+        assert (
+            client._transport.train_custom_model in client._transport._wrapped_methods
+        )
+
+        # Replace cached wrapped function with mock
+        mock_rpc = mock.Mock()
+        mock_rpc.return_value.name = (
+            "foo"  # operation_request.operation in compute client(s) expect a string.
+        )
+        client._transport._wrapped_methods[
+            client._transport.train_custom_model
+        ] = mock_rpc
+        request = {}
+        client.train_custom_model(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert mock_rpc.call_count == 1
+
+        # Operation methods call wrapper_fn to build a cached
+        # client._transport.operations_client instance on first rpc call.
+        # Subsequent calls should use the cached wrapper
+        wrapper_fn.reset_mock()
+
+        client.train_custom_model(request)
+
+        # Establish that a new wrapper was not created for this call
+        assert wrapper_fn.call_count == 0
+        assert mock_rpc.call_count == 2
+
+
+@pytest.mark.asyncio
+async def test_train_custom_model_empty_call_async():
+    # This test is a coverage failsafe to make sure that totally empty calls,
+    # i.e. request == None and no flattened fields passed, work.
+    client = SearchTuningServiceAsyncClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="grpc_asyncio",
+    )
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.train_custom_model), "__call__"
+    ) as call:
+        # Designate an appropriate return value for the call.
+        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
+            operations_pb2.Operation(name="operations/spam")
+        )
+        response = await client.train_custom_model()
+        call.assert_called()
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == search_tuning_service.TrainCustomModelRequest()
+
+
+@pytest.mark.asyncio
+async def test_train_custom_model_async_use_cached_wrapped_rpc(
+    transport: str = "grpc_asyncio",
+):
+    # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
+    # instead of constructing them on each call
+    with mock.patch("google.api_core.gapic_v1.method_async.wrap_method") as wrapper_fn:
+        client = SearchTuningServiceAsyncClient(
+            credentials=ga_credentials.AnonymousCredentials(),
+            transport=transport,
+        )
+
+        # Should wrap all calls on client creation
+        assert wrapper_fn.call_count > 0
+        wrapper_fn.reset_mock()
+
+        # Ensure method has been cached
+        assert (
+            client._client._transport.train_custom_model
+            in client._client._transport._wrapped_methods
+        )
+
+        # Replace cached wrapped function with mock
+        mock_rpc = mock.AsyncMock()
+        mock_rpc.return_value = mock.Mock()
+        client._client._transport._wrapped_methods[
+            client._client._transport.train_custom_model
+        ] = mock_rpc
+
+        request = {}
+        await client.train_custom_model(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert mock_rpc.call_count == 1
+
+        # Operation methods call wrapper_fn to build a cached
+        # client._transport.operations_client instance on first rpc call.
+        # Subsequent calls should use the cached wrapper
+        wrapper_fn.reset_mock()
+
+        await client.train_custom_model(request)
+
+        # Establish that a new wrapper was not created for this call
+        assert wrapper_fn.call_count == 0
+        assert mock_rpc.call_count == 2
+
+
+@pytest.mark.asyncio
+async def test_train_custom_model_async(
+    transport: str = "grpc_asyncio",
+    request_type=search_tuning_service.TrainCustomModelRequest,
+):
+    client = SearchTuningServiceAsyncClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport=transport,
+    )
+
+    # Everything is optional in proto3 as far as the runtime is concerned,
+    # and we are mocking out the actual API, so just send an empty request.
+    request = request_type()
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.train_custom_model), "__call__"
+    ) as call:
+        # Designate an appropriate return value for the call.
+        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
+            operations_pb2.Operation(name="operations/spam")
+        )
+        response = await client.train_custom_model(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert len(call.mock_calls)
+        _, args, _ = call.mock_calls[0]
+        request = search_tuning_service.TrainCustomModelRequest()
+        assert args[0] == request
+
+    # Establish that the response is the type that we expect.
+    assert isinstance(response, future.Future)
+
+
+@pytest.mark.asyncio
+async def test_train_custom_model_async_from_dict():
+    await test_train_custom_model_async(request_type=dict)
+
+
+def test_train_custom_model_field_headers():
+    client = SearchTuningServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+
+    # Any value that is part of the HTTP/1.1 URI should be sent as
+    # a field header. Set these to a non-empty value.
+    request = search_tuning_service.TrainCustomModelRequest()
+
+    request.data_store = "data_store_value"
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.train_custom_model), "__call__"
+    ) as call:
+        call.return_value = operations_pb2.Operation(name="operations/op")
+        client.train_custom_model(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert len(call.mock_calls) == 1
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == request
+
+    # Establish that the field header was sent.
+    _, _, kw = call.mock_calls[0]
+    assert (
+        "x-goog-request-params",
+        "data_store=data_store_value",
+    ) in kw["metadata"]
+
+
+@pytest.mark.asyncio
+async def test_train_custom_model_field_headers_async():
+    client = SearchTuningServiceAsyncClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+
+    # Any value that is part of the HTTP/1.1 URI should be sent as
+    # a field header. Set these to a non-empty value.
+    request = search_tuning_service.TrainCustomModelRequest()
+
+    request.data_store = "data_store_value"
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.train_custom_model), "__call__"
+    ) as call:
+        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
+            operations_pb2.Operation(name="operations/op")
+        )
+        await client.train_custom_model(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert len(call.mock_calls)
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == request
+
+    # Establish that the field header was sent.
+    _, _, kw = call.mock_calls[0]
+    assert (
+        "x-goog-request-params",
+        "data_store=data_store_value",
+    ) in kw["metadata"]
+
+
+@pytest.mark.parametrize(
+    "request_type",
+    [
+        search_tuning_service.ListCustomModelsRequest,
+        dict,
+    ],
+)
+def test_list_custom_models(request_type, transport: str = "grpc"):
+    client = SearchTuningServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport=transport,
+    )
+
+    # Everything is optional in proto3 as far as the runtime is concerned,
+    # and we are mocking out the actual API, so just send an empty request.
+    request = request_type()
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.list_custom_models), "__call__"
+    ) as call:
+        # Designate an appropriate return value for the call.
+        call.return_value = search_tuning_service.ListCustomModelsResponse()
+        response = client.list_custom_models(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert len(call.mock_calls) == 1
+        _, args, _ = call.mock_calls[0]
+        request = search_tuning_service.ListCustomModelsRequest()
+        assert args[0] == request
+
+    # Establish that the response is the type that we expect.
+    assert isinstance(response, search_tuning_service.ListCustomModelsResponse)
+
+
+def test_list_custom_models_empty_call():
+    # This test is a coverage failsafe to make sure that totally empty calls,
+    # i.e. request == None and no flattened fields passed, work.
+    client = SearchTuningServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="grpc",
+    )
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.list_custom_models), "__call__"
+    ) as call:
+        call.return_value.name = (
+            "foo"  # operation_request.operation in compute client(s) expect a string.
+        )
+        client.list_custom_models()
+        call.assert_called()
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == search_tuning_service.ListCustomModelsRequest()
+
+
+def test_list_custom_models_non_empty_request_with_auto_populated_field():
+    # This test is a coverage failsafe to make sure that UUID4 fields are
+    # automatically populated, according to AIP-4235, with non-empty requests.
+    client = SearchTuningServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="grpc",
+    )
+
+    # Populate all string fields in the request which are not UUID4
+    # since we want to check that UUID4 are populated automatically
+    # if they meet the requirements of AIP 4235.
+    request = search_tuning_service.ListCustomModelsRequest(
+        data_store="data_store_value",
+    )
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.list_custom_models), "__call__"
+    ) as call:
+        call.return_value.name = (
+            "foo"  # operation_request.operation in compute client(s) expect a string.
+        )
+        client.list_custom_models(request=request)
+        call.assert_called()
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == search_tuning_service.ListCustomModelsRequest(
+            data_store="data_store_value",
+        )
+
+
+def test_list_custom_models_use_cached_wrapped_rpc():
+    # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
+    # instead of constructing them on each call
+    with mock.patch("google.api_core.gapic_v1.method.wrap_method") as wrapper_fn:
+        client = SearchTuningServiceClient(
+            credentials=ga_credentials.AnonymousCredentials(),
+            transport="grpc",
+        )
+
+        # Should wrap all calls on client creation
+        assert wrapper_fn.call_count > 0
+        wrapper_fn.reset_mock()
+
+        # Ensure method has been cached
+        assert (
+            client._transport.list_custom_models in client._transport._wrapped_methods
+        )
+
+        # Replace cached wrapped function with mock
+        mock_rpc = mock.Mock()
+        mock_rpc.return_value.name = (
+            "foo"  # operation_request.operation in compute client(s) expect a string.
+        )
+        client._transport._wrapped_methods[
+            client._transport.list_custom_models
+        ] = mock_rpc
+        request = {}
+        client.list_custom_models(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert mock_rpc.call_count == 1
+
+        client.list_custom_models(request)
+
+        # Establish that a new wrapper was not created for this call
+        assert wrapper_fn.call_count == 0
+        assert mock_rpc.call_count == 2
+
+
+@pytest.mark.asyncio
+async def test_list_custom_models_empty_call_async():
+    # This test is a coverage failsafe to make sure that totally empty calls,
+    # i.e. request == None and no flattened fields passed, work.
+    client = SearchTuningServiceAsyncClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="grpc_asyncio",
+    )
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.list_custom_models), "__call__"
+    ) as call:
+        # Designate an appropriate return value for the call.
+        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
+            search_tuning_service.ListCustomModelsResponse()
+        )
+        response = await client.list_custom_models()
+        call.assert_called()
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == search_tuning_service.ListCustomModelsRequest()
+
+
+@pytest.mark.asyncio
+async def test_list_custom_models_async_use_cached_wrapped_rpc(
+    transport: str = "grpc_asyncio",
+):
+    # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
+    # instead of constructing them on each call
+    with mock.patch("google.api_core.gapic_v1.method_async.wrap_method") as wrapper_fn:
+        client = SearchTuningServiceAsyncClient(
+            credentials=ga_credentials.AnonymousCredentials(),
+            transport=transport,
+        )
+
+        # Should wrap all calls on client creation
+        assert wrapper_fn.call_count > 0
+        wrapper_fn.reset_mock()
+
+        # Ensure method has been cached
+        assert (
+            client._client._transport.list_custom_models
+            in client._client._transport._wrapped_methods
+        )
+
+        # Replace cached wrapped function with mock
+        mock_rpc = mock.AsyncMock()
+        mock_rpc.return_value = mock.Mock()
+        client._client._transport._wrapped_methods[
+            client._client._transport.list_custom_models
+        ] = mock_rpc
+
+        request = {}
+        await client.list_custom_models(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert mock_rpc.call_count == 1
+
+        await client.list_custom_models(request)
+
+        # Establish that a new wrapper was not created for this call
+        assert wrapper_fn.call_count == 0
+        assert mock_rpc.call_count == 2
+
+
+@pytest.mark.asyncio
+async def test_list_custom_models_async(
+    transport: str = "grpc_asyncio",
+    request_type=search_tuning_service.ListCustomModelsRequest,
+):
+    client = SearchTuningServiceAsyncClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport=transport,
+    )
+
+    # Everything is optional in proto3 as far as the runtime is concerned,
+    # and we are mocking out the actual API, so just send an empty request.
+    request = request_type()
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.list_custom_models), "__call__"
+    ) as call:
+        # Designate an appropriate return value for the call.
+        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
+            search_tuning_service.ListCustomModelsResponse()
+        )
+        response = await client.list_custom_models(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert len(call.mock_calls)
+        _, args, _ = call.mock_calls[0]
+        request = search_tuning_service.ListCustomModelsRequest()
+        assert args[0] == request
+
+    # Establish that the response is the type that we expect.
+    assert isinstance(response, search_tuning_service.ListCustomModelsResponse)
+
+
+@pytest.mark.asyncio
+async def test_list_custom_models_async_from_dict():
+    await test_list_custom_models_async(request_type=dict)
+
+
+def test_list_custom_models_field_headers():
+    client = SearchTuningServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+
+    # Any value that is part of the HTTP/1.1 URI should be sent as
+    # a field header. Set these to a non-empty value.
+    request = search_tuning_service.ListCustomModelsRequest()
+
+    request.data_store = "data_store_value"
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.list_custom_models), "__call__"
+    ) as call:
+        call.return_value = search_tuning_service.ListCustomModelsResponse()
+        client.list_custom_models(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert len(call.mock_calls) == 1
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == request
+
+    # Establish that the field header was sent.
+    _, _, kw = call.mock_calls[0]
+    assert (
+        "x-goog-request-params",
+        "data_store=data_store_value",
+    ) in kw["metadata"]
+
+
+@pytest.mark.asyncio
+async def test_list_custom_models_field_headers_async():
+    client = SearchTuningServiceAsyncClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+
+    # Any value that is part of the HTTP/1.1 URI should be sent as
+    # a field header. Set these to a non-empty value.
+    request = search_tuning_service.ListCustomModelsRequest()
+
+    request.data_store = "data_store_value"
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.list_custom_models), "__call__"
+    ) as call:
+        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
+            search_tuning_service.ListCustomModelsResponse()
+        )
+        await client.list_custom_models(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert len(call.mock_calls)
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == request
+
+    # Establish that the field header was sent.
+    _, _, kw = call.mock_calls[0]
+    assert (
+        "x-goog-request-params",
+        "data_store=data_store_value",
+    ) in kw["metadata"]
+
+
+@pytest.mark.parametrize(
+    "request_type",
+    [
+        search_tuning_service.TrainCustomModelRequest,
+        dict,
+    ],
+)
+def test_train_custom_model_rest(request_type):
+    client = SearchTuningServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="rest",
+    )
+
+    # send a request that will satisfy transcoding
+    request_init = {
+        "data_store": "projects/sample1/locations/sample2/collections/sample3/dataStores/sample4"
+    }
+    request = request_type(**request_init)
+
+    # Mock the http request call within the method and fake a response.
+    with mock.patch.object(type(client.transport._session), "request") as req:
+        # Designate an appropriate value for the returned response.
+        return_value = operations_pb2.Operation(name="operations/spam")
+
+        # Wrap the value into a proper Response obj
+        response_value = Response()
+        response_value.status_code = 200
+        json_return_value = json_format.MessageToJson(return_value)
+
+        response_value._content = json_return_value.encode("UTF-8")
+        req.return_value = response_value
+        response = client.train_custom_model(request)
+
+    # Establish that the response is the type that we expect.
+    assert response.operation.name == "operations/spam"
+
+
+def test_train_custom_model_rest_use_cached_wrapped_rpc():
+    # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
+    # instead of constructing them on each call
+    with mock.patch("google.api_core.gapic_v1.method.wrap_method") as wrapper_fn:
+        client = SearchTuningServiceClient(
+            credentials=ga_credentials.AnonymousCredentials(),
+            transport="rest",
+        )
+
+        # Should wrap all calls on client creation
+        assert wrapper_fn.call_count > 0
+        wrapper_fn.reset_mock()
+
+        # Ensure method has been cached
+        assert (
+            client._transport.train_custom_model in client._transport._wrapped_methods
+        )
+
+        # Replace cached wrapped function with mock
+        mock_rpc = mock.Mock()
+        mock_rpc.return_value.name = (
+            "foo"  # operation_request.operation in compute client(s) expect a string.
+        )
+        client._transport._wrapped_methods[
+            client._transport.train_custom_model
+        ] = mock_rpc
+
+        request = {}
+        client.train_custom_model(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert mock_rpc.call_count == 1
+
+        # Operation methods build a cached wrapper on first rpc call
+        # subsequent calls should use the cached wrapper
+        wrapper_fn.reset_mock()
+
+        client.train_custom_model(request)
+
+        # Establish that a new wrapper was not created for this call
+        assert wrapper_fn.call_count == 0
+        assert mock_rpc.call_count == 2
+
+
+def test_train_custom_model_rest_required_fields(
+    request_type=search_tuning_service.TrainCustomModelRequest,
+):
+    transport_class = transports.SearchTuningServiceRestTransport
+
+    request_init = {}
+    request_init["data_store"] = ""
+    request = request_type(**request_init)
+    pb_request = request_type.pb(request)
+    jsonified_request = json.loads(
+        json_format.MessageToJson(pb_request, use_integers_for_enums=False)
+    )
+
+    # verify fields with default values are dropped
+
+    unset_fields = transport_class(
+        credentials=ga_credentials.AnonymousCredentials()
+    ).train_custom_model._get_unset_required_fields(jsonified_request)
+    jsonified_request.update(unset_fields)
+
+    # verify required fields with default values are now present
+
+    jsonified_request["dataStore"] = "data_store_value"
+
+    unset_fields = transport_class(
+        credentials=ga_credentials.AnonymousCredentials()
+    ).train_custom_model._get_unset_required_fields(jsonified_request)
+    jsonified_request.update(unset_fields)
+
+    # verify required fields with non-default values are left alone
+    assert "dataStore" in jsonified_request
+    assert jsonified_request["dataStore"] == "data_store_value"
+
+    client = SearchTuningServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="rest",
+    )
+    request = request_type(**request_init)
+
+    # Designate an appropriate value for the returned response.
+    return_value = operations_pb2.Operation(name="operations/spam")
+    # Mock the http request call within the method and fake a response.
+    with mock.patch.object(Session, "request") as req:
+        # We need to mock transcode() because providing default values
+        # for required fields will fail the real version if the http_options
+        # expect actual values for those fields.
+        with mock.patch.object(path_template, "transcode") as transcode:
+            # A uri without fields and an empty body will force all the
+            # request fields to show up in the query_params.
+            pb_request = request_type.pb(request)
+            transcode_result = {
+                "uri": "v1/sample_method",
+                "method": "post",
+                "query_params": pb_request,
+            }
+            transcode_result["body"] = pb_request
+            transcode.return_value = transcode_result
+
+            response_value = Response()
+            response_value.status_code = 200
+            json_return_value = json_format.MessageToJson(return_value)
+
+            response_value._content = json_return_value.encode("UTF-8")
+            req.return_value = response_value
+
+            response = client.train_custom_model(request)
+
+            expected_params = [("$alt", "json;enum-encoding=int")]
+            actual_params = req.call_args.kwargs["params"]
+            assert expected_params == actual_params
+
+
+def test_train_custom_model_rest_unset_required_fields():
+    transport = transports.SearchTuningServiceRestTransport(
+        credentials=ga_credentials.AnonymousCredentials
+    )
+
+    unset_fields = transport.train_custom_model._get_unset_required_fields({})
+    assert set(unset_fields) == (set(()) & set(("dataStore",)))
+
+
+@pytest.mark.parametrize("null_interceptor", [True, False])
+def test_train_custom_model_rest_interceptors(null_interceptor):
+    transport = transports.SearchTuningServiceRestTransport(
+        credentials=ga_credentials.AnonymousCredentials(),
+        interceptor=None
+        if null_interceptor
+        else transports.SearchTuningServiceRestInterceptor(),
+    )
+    client = SearchTuningServiceClient(transport=transport)
+    with mock.patch.object(
+        type(client.transport._session), "request"
+    ) as req, mock.patch.object(
+        path_template, "transcode"
+    ) as transcode, mock.patch.object(
+        operation.Operation, "_set_result_from_operation"
+    ), mock.patch.object(
+        transports.SearchTuningServiceRestInterceptor, "post_train_custom_model"
+    ) as post, mock.patch.object(
+        transports.SearchTuningServiceRestInterceptor, "pre_train_custom_model"
+    ) as pre:
+        pre.assert_not_called()
+        post.assert_not_called()
+        pb_message = search_tuning_service.TrainCustomModelRequest.pb(
+            search_tuning_service.TrainCustomModelRequest()
+        )
+        transcode.return_value = {
+            "method": "post",
+            "uri": "my_uri",
+            "body": pb_message,
+            "query_params": pb_message,
+        }
+
+        req.return_value = Response()
+        req.return_value.status_code = 200
+        req.return_value.request = PreparedRequest()
+        req.return_value._content = json_format.MessageToJson(
+            operations_pb2.Operation()
+        )
+
+        request = search_tuning_service.TrainCustomModelRequest()
+        metadata = [
+            ("key", "val"),
+            ("cephalopod", "squid"),
+        ]
+        pre.return_value = request, metadata
+        post.return_value = operations_pb2.Operation()
+
+        client.train_custom_model(
+            request,
+            metadata=[
+                ("key", "val"),
+                ("cephalopod", "squid"),
+            ],
+        )
+
+        pre.assert_called_once()
+        post.assert_called_once()
+
+
+def test_train_custom_model_rest_bad_request(
+    transport: str = "rest", request_type=search_tuning_service.TrainCustomModelRequest
+):
+    client = SearchTuningServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport=transport,
+    )
+
+    # send a request that will satisfy transcoding
+    request_init = {
+        "data_store": "projects/sample1/locations/sample2/collections/sample3/dataStores/sample4"
+    }
+    request = request_type(**request_init)
+
+    # Mock the http request call within the method and fake a BadRequest error.
+    with mock.patch.object(Session, "request") as req, pytest.raises(
+        core_exceptions.BadRequest
+    ):
+        # Wrap the value into a proper Response obj
+        response_value = Response()
+        response_value.status_code = 400
+        response_value.request = Request()
+        req.return_value = response_value
+        client.train_custom_model(request)
+
+
+def test_train_custom_model_rest_error():
+    client = SearchTuningServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(), transport="rest"
+    )
+
+
+@pytest.mark.parametrize(
+    "request_type",
+    [
+        search_tuning_service.ListCustomModelsRequest,
+        dict,
+    ],
+)
+def test_list_custom_models_rest(request_type):
+    client = SearchTuningServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="rest",
+    )
+
+    # send a request that will satisfy transcoding
+    request_init = {
+        "data_store": "projects/sample1/locations/sample2/collections/sample3/dataStores/sample4"
+    }
+    request = request_type(**request_init)
+
+    # Mock the http request call within the method and fake a response.
+    with mock.patch.object(type(client.transport._session), "request") as req:
+        # Designate an appropriate value for the returned response.
+        return_value = search_tuning_service.ListCustomModelsResponse()
+
+        # Wrap the value into a proper Response obj
+        response_value = Response()
+        response_value.status_code = 200
+        # Convert return value to protobuf type
+        return_value = search_tuning_service.ListCustomModelsResponse.pb(return_value)
+        json_return_value = json_format.MessageToJson(return_value)
+
+        response_value._content = json_return_value.encode("UTF-8")
+        req.return_value = response_value
+        response = client.list_custom_models(request)
+
+    # Establish that the response is the type that we expect.
+    assert isinstance(response, search_tuning_service.ListCustomModelsResponse)
+
+
+def test_list_custom_models_rest_use_cached_wrapped_rpc():
+    # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
+    # instead of constructing them on each call
+    with mock.patch("google.api_core.gapic_v1.method.wrap_method") as wrapper_fn:
+        client = SearchTuningServiceClient(
+            credentials=ga_credentials.AnonymousCredentials(),
+            transport="rest",
+        )
+
+        # Should wrap all calls on client creation
+        assert wrapper_fn.call_count > 0
+        wrapper_fn.reset_mock()
+
+        # Ensure method has been cached
+        assert (
+            client._transport.list_custom_models in client._transport._wrapped_methods
+        )
+
+        # Replace cached wrapped function with mock
+        mock_rpc = mock.Mock()
+        mock_rpc.return_value.name = (
+            "foo"  # operation_request.operation in compute client(s) expect a string.
+        )
+        client._transport._wrapped_methods[
+            client._transport.list_custom_models
+        ] = mock_rpc
+
+        request = {}
+        client.list_custom_models(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert mock_rpc.call_count == 1
+
+        client.list_custom_models(request)
+
+        # Establish that a new wrapper was not created for this call
+        assert wrapper_fn.call_count == 0
+        assert mock_rpc.call_count == 2
+
+
+def test_list_custom_models_rest_required_fields(
+    request_type=search_tuning_service.ListCustomModelsRequest,
+):
+    transport_class = transports.SearchTuningServiceRestTransport
+
+    request_init = {}
+    request_init["data_store"] = ""
+    request = request_type(**request_init)
+    pb_request = request_type.pb(request)
+    jsonified_request = json.loads(
+        json_format.MessageToJson(pb_request, use_integers_for_enums=False)
+    )
+
+    # verify fields with default values are dropped
+
+    unset_fields = transport_class(
+        credentials=ga_credentials.AnonymousCredentials()
+    ).list_custom_models._get_unset_required_fields(jsonified_request)
+    jsonified_request.update(unset_fields)
+
+    # verify required fields with default values are now present
+
+    jsonified_request["dataStore"] = "data_store_value"
+
+    unset_fields = transport_class(
+        credentials=ga_credentials.AnonymousCredentials()
+    ).list_custom_models._get_unset_required_fields(jsonified_request)
+    jsonified_request.update(unset_fields)
+
+    # verify required fields with non-default values are left alone
+    assert "dataStore" in jsonified_request
+    assert jsonified_request["dataStore"] == "data_store_value"
+
+    client = SearchTuningServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="rest",
+    )
+    request = request_type(**request_init)
+
+    # Designate an appropriate value for the returned response.
+    return_value = search_tuning_service.ListCustomModelsResponse()
+    # Mock the http request call within the method and fake a response.
+    with mock.patch.object(Session, "request") as req:
+        # We need to mock transcode() because providing default values
+        # for required fields will fail the real version if the http_options
+        # expect actual values for those fields.
+        with mock.patch.object(path_template, "transcode") as transcode:
+            # A uri without fields and an empty body will force all the
+            # request fields to show up in the query_params.
+            pb_request = request_type.pb(request)
+            transcode_result = {
+                "uri": "v1/sample_method",
+                "method": "get",
+                "query_params": pb_request,
+            }
+            transcode.return_value = transcode_result
+
+            response_value = Response()
+            response_value.status_code = 200
+
+            # Convert return value to protobuf type
+            return_value = search_tuning_service.ListCustomModelsResponse.pb(
+                return_value
+            )
+            json_return_value = json_format.MessageToJson(return_value)
+
+            response_value._content = json_return_value.encode("UTF-8")
+            req.return_value = response_value
+
+            response = client.list_custom_models(request)
+
+            expected_params = [("$alt", "json;enum-encoding=int")]
+            actual_params = req.call_args.kwargs["params"]
+            assert expected_params == actual_params
+
+
+def test_list_custom_models_rest_unset_required_fields():
+    transport = transports.SearchTuningServiceRestTransport(
+        credentials=ga_credentials.AnonymousCredentials
+    )
+
+    unset_fields = transport.list_custom_models._get_unset_required_fields({})
+    assert set(unset_fields) == (set(()) & set(("dataStore",)))
+
+
+@pytest.mark.parametrize("null_interceptor", [True, False])
+def test_list_custom_models_rest_interceptors(null_interceptor):
+    transport = transports.SearchTuningServiceRestTransport(
+        credentials=ga_credentials.AnonymousCredentials(),
+        interceptor=None
+        if null_interceptor
+        else transports.SearchTuningServiceRestInterceptor(),
+    )
+    client = SearchTuningServiceClient(transport=transport)
+    with mock.patch.object(
+        type(client.transport._session), "request"
+    ) as req, mock.patch.object(
+        path_template, "transcode"
+    ) as transcode, mock.patch.object(
+        transports.SearchTuningServiceRestInterceptor, "post_list_custom_models"
+    ) as post, mock.patch.object(
+        transports.SearchTuningServiceRestInterceptor, "pre_list_custom_models"
+    ) as pre:
+        pre.assert_not_called()
+        post.assert_not_called()
+        pb_message = search_tuning_service.ListCustomModelsRequest.pb(
+            search_tuning_service.ListCustomModelsRequest()
+        )
+        transcode.return_value = {
+            "method": "post",
+            "uri": "my_uri",
+            "body": pb_message,
+            "query_params": pb_message,
+        }
+
+        req.return_value = Response()
+        req.return_value.status_code = 200
+        req.return_value.request = PreparedRequest()
+        req.return_value._content = (
+            search_tuning_service.ListCustomModelsResponse.to_json(
+                search_tuning_service.ListCustomModelsResponse()
+            )
+        )
+
+        request = search_tuning_service.ListCustomModelsRequest()
+        metadata = [
+            ("key", "val"),
+            ("cephalopod", "squid"),
+        ]
+        pre.return_value = request, metadata
+        post.return_value = search_tuning_service.ListCustomModelsResponse()
+
+        client.list_custom_models(
+            request,
+            metadata=[
+                ("key", "val"),
+                ("cephalopod", "squid"),
+            ],
+        )
+
+        pre.assert_called_once()
+        post.assert_called_once()
+
+
+def test_list_custom_models_rest_bad_request(
+    transport: str = "rest", request_type=search_tuning_service.ListCustomModelsRequest
+):
+    client = SearchTuningServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport=transport,
+    )
+
+    # send a request that will satisfy transcoding
+    request_init = {
+        "data_store": "projects/sample1/locations/sample2/collections/sample3/dataStores/sample4"
+    }
+    request = request_type(**request_init)
+
+    # Mock the http request call within the method and fake a BadRequest error.
+    with mock.patch.object(Session, "request") as req, pytest.raises(
+        core_exceptions.BadRequest
+    ):
+        # Wrap the value into a proper Response obj
+        response_value = Response()
+        response_value.status_code = 400
+        response_value.request = Request()
+        req.return_value = response_value
+        client.list_custom_models(request)
+
+
+def test_list_custom_models_rest_error():
+    client = SearchTuningServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(), transport="rest"
+    )
+
+
+def test_credentials_transport_error():
+    # It is an error to provide credentials and a transport instance.
+    transport = transports.SearchTuningServiceGrpcTransport(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+    with pytest.raises(ValueError):
+        client = SearchTuningServiceClient(
+            credentials=ga_credentials.AnonymousCredentials(),
+            transport=transport,
+        )
+
+    # It is an error to provide a credentials file and a transport instance.
+    transport = transports.SearchTuningServiceGrpcTransport(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+    with pytest.raises(ValueError):
+        client = SearchTuningServiceClient(
+            client_options={"credentials_file": "credentials.json"},
+            transport=transport,
+        )
+
+    # It is an error to provide an api_key and a transport instance.
+    transport = transports.SearchTuningServiceGrpcTransport(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+    options = client_options.ClientOptions()
+    options.api_key = "api_key"
+    with pytest.raises(ValueError):
+        client = SearchTuningServiceClient(
+            client_options=options,
+            transport=transport,
+        )
+
+    # It is an error to provide an api_key and a credential.
+    options = client_options.ClientOptions()
+    options.api_key = "api_key"
+    with pytest.raises(ValueError):
+        client = SearchTuningServiceClient(
+            client_options=options, credentials=ga_credentials.AnonymousCredentials()
+        )
+
+    # It is an error to provide scopes and a transport instance.
+    transport = transports.SearchTuningServiceGrpcTransport(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+    with pytest.raises(ValueError):
+        client = SearchTuningServiceClient(
+            client_options={"scopes": ["1", "2"]},
+            transport=transport,
+        )
+
+
+def test_transport_instance():
+    # A client may be instantiated with a custom transport instance.
+    transport = transports.SearchTuningServiceGrpcTransport(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+    client = SearchTuningServiceClient(transport=transport)
+    assert client.transport is transport
+
+
+def test_transport_get_channel():
+    # A client may be instantiated with a custom transport instance.
+    transport = transports.SearchTuningServiceGrpcTransport(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+    channel = transport.grpc_channel
+    assert channel
+
+    transport = transports.SearchTuningServiceGrpcAsyncIOTransport(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+    channel = transport.grpc_channel
+    assert channel
+
+
+@pytest.mark.parametrize(
+    "transport_class",
+    [
+        transports.SearchTuningServiceGrpcTransport,
+        transports.SearchTuningServiceGrpcAsyncIOTransport,
+        transports.SearchTuningServiceRestTransport,
+    ],
+)
+def test_transport_adc(transport_class):
+    # Test default credentials are used if not provided.
+    with mock.patch.object(google.auth, "default") as adc:
+        adc.return_value = (ga_credentials.AnonymousCredentials(), None)
+        transport_class()
+        adc.assert_called_once()
+
+
+@pytest.mark.parametrize(
+    "transport_name",
+    [
+        "grpc",
+        "rest",
+    ],
+)
+def test_transport_kind(transport_name):
+    transport = SearchTuningServiceClient.get_transport_class(transport_name)(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+    assert transport.kind == transport_name
+
+
+def test_transport_grpc_default():
+    # A client should use the gRPC transport by default.
+    client = SearchTuningServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+    assert isinstance(
+        client.transport,
+        transports.SearchTuningServiceGrpcTransport,
+    )
+
+
+def test_search_tuning_service_base_transport_error():
+    # Passing both a credentials object and credentials_file should raise an error
+    with pytest.raises(core_exceptions.DuplicateCredentialArgs):
+        transport = transports.SearchTuningServiceTransport(
+            credentials=ga_credentials.AnonymousCredentials(),
+            credentials_file="credentials.json",
+        )
+
+
+def test_search_tuning_service_base_transport():
+    # Instantiate the base transport.
+    with mock.patch(
+        "google.cloud.discoveryengine_v1.services.search_tuning_service.transports.SearchTuningServiceTransport.__init__"
+    ) as Transport:
+        Transport.return_value = None
+        transport = transports.SearchTuningServiceTransport(
+            credentials=ga_credentials.AnonymousCredentials(),
+        )
+
+    # Every method on the transport should just blindly
+    # raise NotImplementedError.
+    methods = (
+        "train_custom_model",
+        "list_custom_models",
+        "get_operation",
+        "cancel_operation",
+        "list_operations",
+    )
+    for method in methods:
+        with pytest.raises(NotImplementedError):
+            getattr(transport, method)(request=object())
+
+    with pytest.raises(NotImplementedError):
+        transport.close()
+
+    # Additionally, the LRO client (a property) should
+    # also raise NotImplementedError
+    with pytest.raises(NotImplementedError):
+        transport.operations_client
+
+    # Catch all for all remaining methods and properties
+    remainder = [
+        "kind",
+    ]
+    for r in remainder:
+        with pytest.raises(NotImplementedError):
+            getattr(transport, r)()
+
+
+def test_search_tuning_service_base_transport_with_credentials_file():
+    # Instantiate the base transport with a credentials file
+    with mock.patch.object(
+        google.auth, "load_credentials_from_file", autospec=True
+    ) as load_creds, mock.patch(
+        "google.cloud.discoveryengine_v1.services.search_tuning_service.transports.SearchTuningServiceTransport._prep_wrapped_messages"
+    ) as Transport:
+        Transport.return_value = None
+        load_creds.return_value = (ga_credentials.AnonymousCredentials(), None)
+        transport = transports.SearchTuningServiceTransport(
+            credentials_file="credentials.json",
+            quota_project_id="octopus",
+        )
+        load_creds.assert_called_once_with(
+            "credentials.json",
+            scopes=None,
+            default_scopes=("https://www.googleapis.com/auth/cloud-platform",),
+            quota_project_id="octopus",
+        )
+
+
+def test_search_tuning_service_base_transport_with_adc():
+    # Test the default credentials are used if credentials and credentials_file are None.
+    with mock.patch.object(google.auth, "default", autospec=True) as adc, mock.patch(
+        "google.cloud.discoveryengine_v1.services.search_tuning_service.transports.SearchTuningServiceTransport._prep_wrapped_messages"
+    ) as Transport:
+        Transport.return_value = None
+        adc.return_value = (ga_credentials.AnonymousCredentials(), None)
+        transport = transports.SearchTuningServiceTransport()
+        adc.assert_called_once()
+
+
+def test_search_tuning_service_auth_adc():
+    # If no credentials are provided, we should use ADC credentials.
+    with mock.patch.object(google.auth, "default", autospec=True) as adc:
+        adc.return_value = (ga_credentials.AnonymousCredentials(), None)
+        SearchTuningServiceClient()
+        adc.assert_called_once_with(
+            scopes=None,
+            default_scopes=("https://www.googleapis.com/auth/cloud-platform",),
+            quota_project_id=None,
+        )
+
+
+@pytest.mark.parametrize(
+    "transport_class",
+    [
+        transports.SearchTuningServiceGrpcTransport,
+        transports.SearchTuningServiceGrpcAsyncIOTransport,
+    ],
+)
+def test_search_tuning_service_transport_auth_adc(transport_class):
+    # If credentials and host are not provided, the transport class should use
+    # ADC credentials.
+    with mock.patch.object(google.auth, "default", autospec=True) as adc:
+        adc.return_value = (ga_credentials.AnonymousCredentials(), None)
+        transport_class(quota_project_id="octopus", scopes=["1", "2"])
+        adc.assert_called_once_with(
+            scopes=["1", "2"],
+            default_scopes=("https://www.googleapis.com/auth/cloud-platform",),
+            quota_project_id="octopus",
+        )
+
+
+@pytest.mark.parametrize(
+    "transport_class",
+    [
+        transports.SearchTuningServiceGrpcTransport,
+        transports.SearchTuningServiceGrpcAsyncIOTransport,
+        transports.SearchTuningServiceRestTransport,
+    ],
+)
+def test_search_tuning_service_transport_auth_gdch_credentials(transport_class):
+    host = "https://language.com"
+    api_audience_tests = [None, "https://language2.com"]
+    api_audience_expect = [host, "https://language2.com"]
+    for t, e in zip(api_audience_tests, api_audience_expect):
+        with mock.patch.object(google.auth, "default", autospec=True) as adc:
+            gdch_mock = mock.MagicMock()
+            type(gdch_mock).with_gdch_audience = mock.PropertyMock(
+                return_value=gdch_mock
+            )
+            adc.return_value = (gdch_mock, None)
+            transport_class(host=host, api_audience=t)
+            gdch_mock.with_gdch_audience.assert_called_once_with(e)
+
+
+@pytest.mark.parametrize(
+    "transport_class,grpc_helpers",
+    [
+        (transports.SearchTuningServiceGrpcTransport, grpc_helpers),
+        (transports.SearchTuningServiceGrpcAsyncIOTransport, grpc_helpers_async),
+    ],
+)
+def test_search_tuning_service_transport_create_channel(transport_class, grpc_helpers):
+    # If credentials and host are not provided, the transport class should use
+    # ADC credentials.
+    with mock.patch.object(
+        google.auth, "default", autospec=True
+    ) as adc, mock.patch.object(
+        grpc_helpers, "create_channel", autospec=True
+    ) as create_channel:
+        creds = ga_credentials.AnonymousCredentials()
+        adc.return_value = (creds, None)
+        transport_class(quota_project_id="octopus", scopes=["1", "2"])
+
+        create_channel.assert_called_with(
+            "discoveryengine.googleapis.com:443",
+            credentials=creds,
+            credentials_file=None,
+            quota_project_id="octopus",
+            default_scopes=("https://www.googleapis.com/auth/cloud-platform",),
+            scopes=["1", "2"],
+            default_host="discoveryengine.googleapis.com",
+            ssl_credentials=None,
+            options=[
+                ("grpc.max_send_message_length", -1),
+                ("grpc.max_receive_message_length", -1),
+            ],
+        )
+
+
+@pytest.mark.parametrize(
+    "transport_class",
+    [
+        transports.SearchTuningServiceGrpcTransport,
+        transports.SearchTuningServiceGrpcAsyncIOTransport,
+    ],
+)
+def test_search_tuning_service_grpc_transport_client_cert_source_for_mtls(
+    transport_class,
+):
+    cred = ga_credentials.AnonymousCredentials()
+
+    # Check ssl_channel_credentials is used if provided.
+    with mock.patch.object(transport_class, "create_channel") as mock_create_channel:
+        mock_ssl_channel_creds = mock.Mock()
+        transport_class(
+            host="squid.clam.whelk",
+            credentials=cred,
+            ssl_channel_credentials=mock_ssl_channel_creds,
+        )
+        mock_create_channel.assert_called_once_with(
+            "squid.clam.whelk:443",
+            credentials=cred,
+            credentials_file=None,
+            scopes=None,
+            ssl_credentials=mock_ssl_channel_creds,
+            quota_project_id=None,
+            options=[
+                ("grpc.max_send_message_length", -1),
+                ("grpc.max_receive_message_length", -1),
+            ],
+        )
+
+    # Check if ssl_channel_credentials is not provided, then client_cert_source_for_mtls
+    # is used.
+    with mock.patch.object(transport_class, "create_channel", return_value=mock.Mock()):
+        with mock.patch("grpc.ssl_channel_credentials") as mock_ssl_cred:
+            transport_class(
+                credentials=cred,
+                client_cert_source_for_mtls=client_cert_source_callback,
+            )
+            expected_cert, expected_key = client_cert_source_callback()
+            mock_ssl_cred.assert_called_once_with(
+                certificate_chain=expected_cert, private_key=expected_key
+            )
+
+
+def test_search_tuning_service_http_transport_client_cert_source_for_mtls():
+    cred = ga_credentials.AnonymousCredentials()
+    with mock.patch(
+        "google.auth.transport.requests.AuthorizedSession.configure_mtls_channel"
+    ) as mock_configure_mtls_channel:
+        transports.SearchTuningServiceRestTransport(
+            credentials=cred, client_cert_source_for_mtls=client_cert_source_callback
+        )
+        mock_configure_mtls_channel.assert_called_once_with(client_cert_source_callback)
+
+
+def test_search_tuning_service_rest_lro_client():
+    client = SearchTuningServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="rest",
+    )
+    transport = client.transport
+
+    # Ensure that we have a api-core operations client.
+    assert isinstance(
+        transport.operations_client,
+        operations_v1.AbstractOperationsClient,
+    )
+
+    # Ensure that subsequent calls to the property send the exact same object.
+    assert transport.operations_client is transport.operations_client
+
+
+@pytest.mark.parametrize(
+    "transport_name",
+    [
+        "grpc",
+        "grpc_asyncio",
+        "rest",
+    ],
+)
+def test_search_tuning_service_host_no_port(transport_name):
+    client = SearchTuningServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        client_options=client_options.ClientOptions(
+            api_endpoint="discoveryengine.googleapis.com"
+        ),
+        transport=transport_name,
+    )
+    assert client.transport._host == (
+        "discoveryengine.googleapis.com:443"
+        if transport_name in ["grpc", "grpc_asyncio"]
+        else "https://discoveryengine.googleapis.com"
+    )
+
+
+@pytest.mark.parametrize(
+    "transport_name",
+    [
+        "grpc",
+        "grpc_asyncio",
+        "rest",
+    ],
+)
+def test_search_tuning_service_host_with_port(transport_name):
+    client = SearchTuningServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        client_options=client_options.ClientOptions(
+            api_endpoint="discoveryengine.googleapis.com:8000"
+        ),
+        transport=transport_name,
+    )
+    assert client.transport._host == (
+        "discoveryengine.googleapis.com:8000"
+        if transport_name in ["grpc", "grpc_asyncio"]
+        else "https://discoveryengine.googleapis.com:8000"
+    )
+
+
+@pytest.mark.parametrize(
+    "transport_name",
+    [
+        "rest",
+    ],
+)
+def test_search_tuning_service_client_transport_session_collision(transport_name):
+    creds1 = ga_credentials.AnonymousCredentials()
+    creds2 = ga_credentials.AnonymousCredentials()
+    client1 = SearchTuningServiceClient(
+        credentials=creds1,
+        transport=transport_name,
+    )
+    client2 = SearchTuningServiceClient(
+        credentials=creds2,
+        transport=transport_name,
+    )
+    session1 = client1.transport.train_custom_model._session
+    session2 = client2.transport.train_custom_model._session
+    assert session1 != session2
+    session1 = client1.transport.list_custom_models._session
+    session2 = client2.transport.list_custom_models._session
+    assert session1 != session2
+
+
+def test_search_tuning_service_grpc_transport_channel():
+    channel = grpc.secure_channel("http://localhost/", grpc.local_channel_credentials())
+
+    # Check that channel is used if provided.
+    transport = transports.SearchTuningServiceGrpcTransport(
+        host="squid.clam.whelk",
+        channel=channel,
+    )
+    assert transport.grpc_channel == channel
+    assert transport._host == "squid.clam.whelk:443"
+    assert transport._ssl_channel_credentials == None
+
+
+def test_search_tuning_service_grpc_asyncio_transport_channel():
+    channel = aio.secure_channel("http://localhost/", grpc.local_channel_credentials())
+
+    # Check that channel is used if provided.
+    transport = transports.SearchTuningServiceGrpcAsyncIOTransport(
+        host="squid.clam.whelk",
+        channel=channel,
+    )
+    assert transport.grpc_channel == channel
+    assert transport._host == "squid.clam.whelk:443"
+    assert transport._ssl_channel_credentials == None
+
+
+# Remove this test when deprecated arguments (api_mtls_endpoint, client_cert_source) are
+# removed from grpc/grpc_asyncio transport constructor.
+@pytest.mark.parametrize(
+    "transport_class",
+    [
+        transports.SearchTuningServiceGrpcTransport,
+        transports.SearchTuningServiceGrpcAsyncIOTransport,
+    ],
+)
+def test_search_tuning_service_transport_channel_mtls_with_client_cert_source(
+    transport_class,
+):
+    with mock.patch(
+        "grpc.ssl_channel_credentials", autospec=True
+    ) as grpc_ssl_channel_cred:
+        with mock.patch.object(
+            transport_class, "create_channel"
+        ) as grpc_create_channel:
+            mock_ssl_cred = mock.Mock()
+            grpc_ssl_channel_cred.return_value = mock_ssl_cred
+
+            mock_grpc_channel = mock.Mock()
+            grpc_create_channel.return_value = mock_grpc_channel
+
+            cred = ga_credentials.AnonymousCredentials()
+            with pytest.warns(DeprecationWarning):
+                with mock.patch.object(google.auth, "default") as adc:
+                    adc.return_value = (cred, None)
+                    transport = transport_class(
+                        host="squid.clam.whelk",
+                        api_mtls_endpoint="mtls.squid.clam.whelk",
+                        client_cert_source=client_cert_source_callback,
+                    )
+                    adc.assert_called_once()
+
+            grpc_ssl_channel_cred.assert_called_once_with(
+                certificate_chain=b"cert bytes", private_key=b"key bytes"
+            )
+            grpc_create_channel.assert_called_once_with(
+                "mtls.squid.clam.whelk:443",
+                credentials=cred,
+                credentials_file=None,
+                scopes=None,
+                ssl_credentials=mock_ssl_cred,
+                quota_project_id=None,
+                options=[
+                    ("grpc.max_send_message_length", -1),
+                    ("grpc.max_receive_message_length", -1),
+                ],
+            )
+            assert transport.grpc_channel == mock_grpc_channel
+            assert transport._ssl_channel_credentials == mock_ssl_cred
+
+
+# Remove this test when deprecated arguments (api_mtls_endpoint, client_cert_source) are
+# removed from grpc/grpc_asyncio transport constructor.
+@pytest.mark.parametrize(
+    "transport_class",
+    [
+        transports.SearchTuningServiceGrpcTransport,
+        transports.SearchTuningServiceGrpcAsyncIOTransport,
+    ],
+)
+def test_search_tuning_service_transport_channel_mtls_with_adc(transport_class):
+    mock_ssl_cred = mock.Mock()
+    with mock.patch.multiple(
+        "google.auth.transport.grpc.SslCredentials",
+        __init__=mock.Mock(return_value=None),
+        ssl_credentials=mock.PropertyMock(return_value=mock_ssl_cred),
+    ):
+        with mock.patch.object(
+            transport_class, "create_channel"
+        ) as grpc_create_channel:
+            mock_grpc_channel = mock.Mock()
+            grpc_create_channel.return_value = mock_grpc_channel
+            mock_cred = mock.Mock()
+
+            with pytest.warns(DeprecationWarning):
+                transport = transport_class(
+                    host="squid.clam.whelk",
+                    credentials=mock_cred,
+                    api_mtls_endpoint="mtls.squid.clam.whelk",
+                    client_cert_source=None,
+                )
+
+            grpc_create_channel.assert_called_once_with(
+                "mtls.squid.clam.whelk:443",
+                credentials=mock_cred,
+                credentials_file=None,
+                scopes=None,
+                ssl_credentials=mock_ssl_cred,
+                quota_project_id=None,
+                options=[
+                    ("grpc.max_send_message_length", -1),
+                    ("grpc.max_receive_message_length", -1),
+                ],
+            )
+            assert transport.grpc_channel == mock_grpc_channel
+
+
+def test_search_tuning_service_grpc_lro_client():
+    client = SearchTuningServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="grpc",
+    )
+    transport = client.transport
+
+    # Ensure that we have a api-core operations client.
+    assert isinstance(
+        transport.operations_client,
+        operations_v1.OperationsClient,
+    )
+
+    # Ensure that subsequent calls to the property send the exact same object.
+    assert transport.operations_client is transport.operations_client
+
+
+def test_search_tuning_service_grpc_lro_async_client():
+    client = SearchTuningServiceAsyncClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="grpc_asyncio",
+    )
+    transport = client.transport
+
+    # Ensure that we have a api-core operations client.
+    assert isinstance(
+        transport.operations_client,
+        operations_v1.OperationsAsyncClient,
+    )
+
+    # Ensure that subsequent calls to the property send the exact same object.
+    assert transport.operations_client is transport.operations_client
+
+
+def test_custom_tuning_model_path():
+    project = "squid"
+    location = "clam"
+    data_store = "whelk"
+    custom_tuning_model = "octopus"
+    expected = "projects/{project}/locations/{location}/dataStores/{data_store}/customTuningModels/{custom_tuning_model}".format(
+        project=project,
+        location=location,
+        data_store=data_store,
+        custom_tuning_model=custom_tuning_model,
+    )
+    actual = SearchTuningServiceClient.custom_tuning_model_path(
+        project, location, data_store, custom_tuning_model
+    )
+    assert expected == actual
+
+
+def test_parse_custom_tuning_model_path():
+    expected = {
+        "project": "oyster",
+        "location": "nudibranch",
+        "data_store": "cuttlefish",
+        "custom_tuning_model": "mussel",
+    }
+    path = SearchTuningServiceClient.custom_tuning_model_path(**expected)
+
+    # Check that the path construction is reversible.
+    actual = SearchTuningServiceClient.parse_custom_tuning_model_path(path)
+    assert expected == actual
+
+
+def test_data_store_path():
+    project = "winkle"
+    location = "nautilus"
+    data_store = "scallop"
+    expected = "projects/{project}/locations/{location}/dataStores/{data_store}".format(
+        project=project,
+        location=location,
+        data_store=data_store,
+    )
+    actual = SearchTuningServiceClient.data_store_path(project, location, data_store)
+    assert expected == actual
+
+
+def test_parse_data_store_path():
+    expected = {
+        "project": "abalone",
+        "location": "squid",
+        "data_store": "clam",
+    }
+    path = SearchTuningServiceClient.data_store_path(**expected)
+
+    # Check that the path construction is reversible.
+    actual = SearchTuningServiceClient.parse_data_store_path(path)
+    assert expected == actual
+
+
+def test_common_billing_account_path():
+    billing_account = "whelk"
+    expected = "billingAccounts/{billing_account}".format(
+        billing_account=billing_account,
+    )
+    actual = SearchTuningServiceClient.common_billing_account_path(billing_account)
+    assert expected == actual
+
+
+def test_parse_common_billing_account_path():
+    expected = {
+        "billing_account": "octopus",
+    }
+    path = SearchTuningServiceClient.common_billing_account_path(**expected)
+
+    # Check that the path construction is reversible.
+    actual = SearchTuningServiceClient.parse_common_billing_account_path(path)
+    assert expected == actual
+
+
+def test_common_folder_path():
+    folder = "oyster"
+    expected = "folders/{folder}".format(
+        folder=folder,
+    )
+    actual = SearchTuningServiceClient.common_folder_path(folder)
+    assert expected == actual
+
+
+def test_parse_common_folder_path():
+    expected = {
+        "folder": "nudibranch",
+    }
+    path = SearchTuningServiceClient.common_folder_path(**expected)
+
+    # Check that the path construction is reversible.
+    actual = SearchTuningServiceClient.parse_common_folder_path(path)
+    assert expected == actual
+
+
+def test_common_organization_path():
+    organization = "cuttlefish"
+    expected = "organizations/{organization}".format(
+        organization=organization,
+    )
+    actual = SearchTuningServiceClient.common_organization_path(organization)
+    assert expected == actual
+
+
+def test_parse_common_organization_path():
+    expected = {
+        "organization": "mussel",
+    }
+    path = SearchTuningServiceClient.common_organization_path(**expected)
+
+    # Check that the path construction is reversible.
+    actual = SearchTuningServiceClient.parse_common_organization_path(path)
+    assert expected == actual
+
+
+def test_common_project_path():
+    project = "winkle"
+    expected = "projects/{project}".format(
+        project=project,
+    )
+    actual = SearchTuningServiceClient.common_project_path(project)
+    assert expected == actual
+
+
+def test_parse_common_project_path():
+    expected = {
+        "project": "nautilus",
+    }
+    path = SearchTuningServiceClient.common_project_path(**expected)
+
+    # Check that the path construction is reversible.
+    actual = SearchTuningServiceClient.parse_common_project_path(path)
+    assert expected == actual
+
+
+def test_common_location_path():
+    project = "scallop"
+    location = "abalone"
+    expected = "projects/{project}/locations/{location}".format(
+        project=project,
+        location=location,
+    )
+    actual = SearchTuningServiceClient.common_location_path(project, location)
+    assert expected == actual
+
+
+def test_parse_common_location_path():
+    expected = {
+        "project": "squid",
+        "location": "clam",
+    }
+    path = SearchTuningServiceClient.common_location_path(**expected)
+
+    # Check that the path construction is reversible.
+    actual = SearchTuningServiceClient.parse_common_location_path(path)
+    assert expected == actual
+
+
+def test_client_with_default_client_info():
+    client_info = gapic_v1.client_info.ClientInfo()
+
+    with mock.patch.object(
+        transports.SearchTuningServiceTransport, "_prep_wrapped_messages"
+    ) as prep:
+        client = SearchTuningServiceClient(
+            credentials=ga_credentials.AnonymousCredentials(),
+            client_info=client_info,
+        )
+        prep.assert_called_once_with(client_info)
+
+    with mock.patch.object(
+        transports.SearchTuningServiceTransport, "_prep_wrapped_messages"
+    ) as prep:
+        transport_class = SearchTuningServiceClient.get_transport_class()
+        transport = transport_class(
+            credentials=ga_credentials.AnonymousCredentials(),
+            client_info=client_info,
+        )
+        prep.assert_called_once_with(client_info)
+
+
+@pytest.mark.asyncio
+async def test_transport_close_async():
+    client = SearchTuningServiceAsyncClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="grpc_asyncio",
+    )
+    with mock.patch.object(
+        type(getattr(client.transport, "grpc_channel")), "close"
+    ) as close:
+        async with client:
+            close.assert_not_called()
+        close.assert_called_once()
+
+
+def test_cancel_operation_rest_bad_request(
+    transport: str = "rest", request_type=operations_pb2.CancelOperationRequest
+):
+    client = SearchTuningServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport=transport,
+    )
+
+    request = request_type()
+    request = json_format.ParseDict(
+        {"name": "projects/sample1/operations/sample2"}, request
+    )
+
+    # Mock the http request call within the method and fake a BadRequest error.
+    with mock.patch.object(Session, "request") as req, pytest.raises(
+        core_exceptions.BadRequest
+    ):
+        # Wrap the value into a proper Response obj
+        response_value = Response()
+        response_value.status_code = 400
+        response_value.request = Request()
+        req.return_value = response_value
+        client.cancel_operation(request)
+
+
+@pytest.mark.parametrize(
+    "request_type",
+    [
+        operations_pb2.CancelOperationRequest,
+        dict,
+    ],
+)
+def test_cancel_operation_rest(request_type):
+    client = SearchTuningServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="rest",
+    )
+    request_init = {"name": "projects/sample1/operations/sample2"}
+    request = request_type(**request_init)
+    # Mock the http request call within the method and fake a response.
+    with mock.patch.object(type(client.transport._session), "request") as req:
+        # Designate an appropriate value for the returned response.
+        return_value = None
+
+        # Wrap the value into a proper Response obj
+        response_value = Response()
+        response_value.status_code = 200
+        json_return_value = "{}"
+
+        response_value._content = json_return_value.encode("UTF-8")
+        req.return_value = response_value
+
+        response = client.cancel_operation(request)
+
+    # Establish that the response is the type that we expect.
+    assert response is None
+
+
+def test_get_operation_rest_bad_request(
+    transport: str = "rest", request_type=operations_pb2.GetOperationRequest
+):
+    client = SearchTuningServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport=transport,
+    )
+
+    request = request_type()
+    request = json_format.ParseDict(
+        {"name": "projects/sample1/operations/sample2"}, request
+    )
+
+    # Mock the http request call within the method and fake a BadRequest error.
+    with mock.patch.object(Session, "request") as req, pytest.raises(
+        core_exceptions.BadRequest
+    ):
+        # Wrap the value into a proper Response obj
+        response_value = Response()
+        response_value.status_code = 400
+        response_value.request = Request()
+        req.return_value = response_value
+        client.get_operation(request)
+
+
+@pytest.mark.parametrize(
+    "request_type",
+    [
+        operations_pb2.GetOperationRequest,
+        dict,
+    ],
+)
+def test_get_operation_rest(request_type):
+    client = SearchTuningServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="rest",
+    )
+    request_init = {"name": "projects/sample1/operations/sample2"}
+    request = request_type(**request_init)
+    # Mock the http request call within the method and fake a response.
+    with mock.patch.object(type(client.transport._session), "request") as req:
+        # Designate an appropriate value for the returned response.
+        return_value = operations_pb2.Operation()
+
+        # Wrap the value into a proper Response obj
+        response_value = Response()
+        response_value.status_code = 200
+        json_return_value = json_format.MessageToJson(return_value)
+
+        response_value._content = json_return_value.encode("UTF-8")
+        req.return_value = response_value
+
+        response = client.get_operation(request)
+
+    # Establish that the response is the type that we expect.
+    assert isinstance(response, operations_pb2.Operation)
+
+
+def test_list_operations_rest_bad_request(
+    transport: str = "rest", request_type=operations_pb2.ListOperationsRequest
+):
+    client = SearchTuningServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport=transport,
+    )
+
+    request = request_type()
+    request = json_format.ParseDict({"name": "projects/sample1"}, request)
+
+    # Mock the http request call within the method and fake a BadRequest error.
+    with mock.patch.object(Session, "request") as req, pytest.raises(
+        core_exceptions.BadRequest
+    ):
+        # Wrap the value into a proper Response obj
+        response_value = Response()
+        response_value.status_code = 400
+        response_value.request = Request()
+        req.return_value = response_value
+        client.list_operations(request)
+
+
+@pytest.mark.parametrize(
+    "request_type",
+    [
+        operations_pb2.ListOperationsRequest,
+        dict,
+    ],
+)
+def test_list_operations_rest(request_type):
+    client = SearchTuningServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="rest",
+    )
+    request_init = {"name": "projects/sample1"}
+    request = request_type(**request_init)
+    # Mock the http request call within the method and fake a response.
+    with mock.patch.object(type(client.transport._session), "request") as req:
+        # Designate an appropriate value for the returned response.
+        return_value = operations_pb2.ListOperationsResponse()
+
+        # Wrap the value into a proper Response obj
+        response_value = Response()
+        response_value.status_code = 200
+        json_return_value = json_format.MessageToJson(return_value)
+
+        response_value._content = json_return_value.encode("UTF-8")
+        req.return_value = response_value
+
+        response = client.list_operations(request)
+
+    # Establish that the response is the type that we expect.
+    assert isinstance(response, operations_pb2.ListOperationsResponse)
+
+
+def test_cancel_operation(transport: str = "grpc"):
+    client = SearchTuningServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport=transport,
+    )
+
+    # Everything is optional in proto3 as far as the runtime is concerned,
+    # and we are mocking out the actual API, so just send an empty request.
+    request = operations_pb2.CancelOperationRequest()
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(type(client.transport.cancel_operation), "__call__") as call:
+        # Designate an appropriate return value for the call.
+        call.return_value = None
+        response = client.cancel_operation(request)
+        # Establish that the underlying gRPC stub method was called.
+        assert len(call.mock_calls) == 1
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == request
+
+    # Establish that the response is the type that we expect.
+    assert response is None
+
+
+@pytest.mark.asyncio
+async def test_cancel_operation_async(transport: str = "grpc_asyncio"):
+    client = SearchTuningServiceAsyncClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport=transport,
+    )
+
+    # Everything is optional in proto3 as far as the runtime is concerned,
+    # and we are mocking out the actual API, so just send an empty request.
+    request = operations_pb2.CancelOperationRequest()
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(type(client.transport.cancel_operation), "__call__") as call:
+        # Designate an appropriate return value for the call.
+        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(None)
+        response = await client.cancel_operation(request)
+        # Establish that the underlying gRPC stub method was called.
+        assert len(call.mock_calls) == 1
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == request
+
+    # Establish that the response is the type that we expect.
+    assert response is None
+
+
+def test_cancel_operation_field_headers():
+    client = SearchTuningServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+
+    # Any value that is part of the HTTP/1.1 URI should be sent as
+    # a field header. Set these to a non-empty value.
+    request = operations_pb2.CancelOperationRequest()
+    request.name = "locations"
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(type(client.transport.cancel_operation), "__call__") as call:
+        call.return_value = None
+
+        client.cancel_operation(request)
+        # Establish that the underlying gRPC stub method was called.
+        assert len(call.mock_calls) == 1
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == request
+
+    # Establish that the field header was sent.
+    _, _, kw = call.mock_calls[0]
+    assert (
+        "x-goog-request-params",
+        "name=locations",
+    ) in kw["metadata"]
+
+
+@pytest.mark.asyncio
+async def test_cancel_operation_field_headers_async():
+    client = SearchTuningServiceAsyncClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+
+    # Any value that is part of the HTTP/1.1 URI should be sent as
+    # a field header. Set these to a non-empty value.
+    request = operations_pb2.CancelOperationRequest()
+    request.name = "locations"
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(type(client.transport.cancel_operation), "__call__") as call:
+        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(None)
+        await client.cancel_operation(request)
+        # Establish that the underlying gRPC stub method was called.
+        assert len(call.mock_calls) == 1
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == request
+
+    # Establish that the field header was sent.
+    _, _, kw = call.mock_calls[0]
+    assert (
+        "x-goog-request-params",
+        "name=locations",
+    ) in kw["metadata"]
+
+
+def test_cancel_operation_from_dict():
+    client = SearchTuningServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(type(client.transport.cancel_operation), "__call__") as call:
+        # Designate an appropriate return value for the call.
+        call.return_value = None
+
+        response = client.cancel_operation(
+            request={
+                "name": "locations",
+            }
+        )
+        call.assert_called()
+
+
+@pytest.mark.asyncio
+async def test_cancel_operation_from_dict_async():
+    client = SearchTuningServiceAsyncClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(type(client.transport.cancel_operation), "__call__") as call:
+        # Designate an appropriate return value for the call.
+        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(None)
+        response = await client.cancel_operation(
+            request={
+                "name": "locations",
+            }
+        )
+        call.assert_called()
+
+
+def test_get_operation(transport: str = "grpc"):
+    client = SearchTuningServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport=transport,
+    )
+
+    # Everything is optional in proto3 as far as the runtime is concerned,
+    # and we are mocking out the actual API, so just send an empty request.
+    request = operations_pb2.GetOperationRequest()
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(type(client.transport.get_operation), "__call__") as call:
+        # Designate an appropriate return value for the call.
+        call.return_value = operations_pb2.Operation()
+        response = client.get_operation(request)
+        # Establish that the underlying gRPC stub method was called.
+        assert len(call.mock_calls) == 1
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == request
+
+    # Establish that the response is the type that we expect.
+    assert isinstance(response, operations_pb2.Operation)
+
+
+@pytest.mark.asyncio
+async def test_get_operation_async(transport: str = "grpc_asyncio"):
+    client = SearchTuningServiceAsyncClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport=transport,
+    )
+
+    # Everything is optional in proto3 as far as the runtime is concerned,
+    # and we are mocking out the actual API, so just send an empty request.
+    request = operations_pb2.GetOperationRequest()
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(type(client.transport.get_operation), "__call__") as call:
+        # Designate an appropriate return value for the call.
+        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
+            operations_pb2.Operation()
+        )
+        response = await client.get_operation(request)
+        # Establish that the underlying gRPC stub method was called.
+        assert len(call.mock_calls) == 1
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == request
+
+    # Establish that the response is the type that we expect.
+    assert isinstance(response, operations_pb2.Operation)
+
+
+def test_get_operation_field_headers():
+    client = SearchTuningServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+
+    # Any value that is part of the HTTP/1.1 URI should be sent as
+    # a field header. Set these to a non-empty value.
+    request = operations_pb2.GetOperationRequest()
+    request.name = "locations"
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(type(client.transport.get_operation), "__call__") as call:
+        call.return_value = operations_pb2.Operation()
+
+        client.get_operation(request)
+        # Establish that the underlying gRPC stub method was called.
+        assert len(call.mock_calls) == 1
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == request
+
+    # Establish that the field header was sent.
+    _, _, kw = call.mock_calls[0]
+    assert (
+        "x-goog-request-params",
+        "name=locations",
+    ) in kw["metadata"]
+
+
+@pytest.mark.asyncio
+async def test_get_operation_field_headers_async():
+    client = SearchTuningServiceAsyncClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+
+    # Any value that is part of the HTTP/1.1 URI should be sent as
+    # a field header. Set these to a non-empty value.
+    request = operations_pb2.GetOperationRequest()
+    request.name = "locations"
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(type(client.transport.get_operation), "__call__") as call:
+        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
+            operations_pb2.Operation()
+        )
+        await client.get_operation(request)
+        # Establish that the underlying gRPC stub method was called.
+        assert len(call.mock_calls) == 1
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == request
+
+    # Establish that the field header was sent.
+    _, _, kw = call.mock_calls[0]
+    assert (
+        "x-goog-request-params",
+        "name=locations",
+    ) in kw["metadata"]
+
+
+def test_get_operation_from_dict():
+    client = SearchTuningServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(type(client.transport.get_operation), "__call__") as call:
+        # Designate an appropriate return value for the call.
+        call.return_value = operations_pb2.Operation()
+
+        response = client.get_operation(
+            request={
+                "name": "locations",
+            }
+        )
+        call.assert_called()
+
+
+@pytest.mark.asyncio
+async def test_get_operation_from_dict_async():
+    client = SearchTuningServiceAsyncClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(type(client.transport.get_operation), "__call__") as call:
+        # Designate an appropriate return value for the call.
+        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
+            operations_pb2.Operation()
+        )
+        response = await client.get_operation(
+            request={
+                "name": "locations",
+            }
+        )
+        call.assert_called()
+
+
+def test_list_operations(transport: str = "grpc"):
+    client = SearchTuningServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport=transport,
+    )
+
+    # Everything is optional in proto3 as far as the runtime is concerned,
+    # and we are mocking out the actual API, so just send an empty request.
+    request = operations_pb2.ListOperationsRequest()
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(type(client.transport.list_operations), "__call__") as call:
+        # Designate an appropriate return value for the call.
+        call.return_value = operations_pb2.ListOperationsResponse()
+        response = client.list_operations(request)
+        # Establish that the underlying gRPC stub method was called.
+        assert len(call.mock_calls) == 1
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == request
+
+    # Establish that the response is the type that we expect.
+    assert isinstance(response, operations_pb2.ListOperationsResponse)
+
+
+@pytest.mark.asyncio
+async def test_list_operations_async(transport: str = "grpc_asyncio"):
+    client = SearchTuningServiceAsyncClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport=transport,
+    )
+
+    # Everything is optional in proto3 as far as the runtime is concerned,
+    # and we are mocking out the actual API, so just send an empty request.
+    request = operations_pb2.ListOperationsRequest()
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(type(client.transport.list_operations), "__call__") as call:
+        # Designate an appropriate return value for the call.
+        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
+            operations_pb2.ListOperationsResponse()
+        )
+        response = await client.list_operations(request)
+        # Establish that the underlying gRPC stub method was called.
+        assert len(call.mock_calls) == 1
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == request
+
+    # Establish that the response is the type that we expect.
+    assert isinstance(response, operations_pb2.ListOperationsResponse)
+
+
+def test_list_operations_field_headers():
+    client = SearchTuningServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+
+    # Any value that is part of the HTTP/1.1 URI should be sent as
+    # a field header. Set these to a non-empty value.
+    request = operations_pb2.ListOperationsRequest()
+    request.name = "locations"
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(type(client.transport.list_operations), "__call__") as call:
+        call.return_value = operations_pb2.ListOperationsResponse()
+
+        client.list_operations(request)
+        # Establish that the underlying gRPC stub method was called.
+        assert len(call.mock_calls) == 1
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == request
+
+    # Establish that the field header was sent.
+    _, _, kw = call.mock_calls[0]
+    assert (
+        "x-goog-request-params",
+        "name=locations",
+    ) in kw["metadata"]
+
+
+@pytest.mark.asyncio
+async def test_list_operations_field_headers_async():
+    client = SearchTuningServiceAsyncClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+
+    # Any value that is part of the HTTP/1.1 URI should be sent as
+    # a field header. Set these to a non-empty value.
+    request = operations_pb2.ListOperationsRequest()
+    request.name = "locations"
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(type(client.transport.list_operations), "__call__") as call:
+        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
+            operations_pb2.ListOperationsResponse()
+        )
+        await client.list_operations(request)
+        # Establish that the underlying gRPC stub method was called.
+        assert len(call.mock_calls) == 1
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == request
+
+    # Establish that the field header was sent.
+    _, _, kw = call.mock_calls[0]
+    assert (
+        "x-goog-request-params",
+        "name=locations",
+    ) in kw["metadata"]
+
+
+def test_list_operations_from_dict():
+    client = SearchTuningServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(type(client.transport.list_operations), "__call__") as call:
+        # Designate an appropriate return value for the call.
+        call.return_value = operations_pb2.ListOperationsResponse()
+
+        response = client.list_operations(
+            request={
+                "name": "locations",
+            }
+        )
+        call.assert_called()
+
+
+@pytest.mark.asyncio
+async def test_list_operations_from_dict_async():
+    client = SearchTuningServiceAsyncClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(type(client.transport.list_operations), "__call__") as call:
+        # Designate an appropriate return value for the call.
+        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
+            operations_pb2.ListOperationsResponse()
+        )
+        response = await client.list_operations(
+            request={
+                "name": "locations",
+            }
+        )
+        call.assert_called()
+
+
+def test_transport_close():
+    transports = {
+        "rest": "_session",
+        "grpc": "_grpc_channel",
+    }
+
+    for transport, close_name in transports.items():
+        client = SearchTuningServiceClient(
+            credentials=ga_credentials.AnonymousCredentials(), transport=transport
+        )
+        with mock.patch.object(
+            type(getattr(client.transport, close_name)), "close"
+        ) as close:
+            with client:
+                close.assert_not_called()
+            close.assert_called_once()
+
+
+def test_client_ctx():
+    transports = [
+        "rest",
+        "grpc",
+    ]
+    for transport in transports:
+        client = SearchTuningServiceClient(
+            credentials=ga_credentials.AnonymousCredentials(), transport=transport
+        )
+        # Test client calls underlying transport.
+        with mock.patch.object(type(client.transport), "close") as close:
+            close.assert_not_called()
+            with client:
+                pass
+            close.assert_called()
+
+
+@pytest.mark.parametrize(
+    "client_class,transport_class",
+    [
+        (SearchTuningServiceClient, transports.SearchTuningServiceGrpcTransport),
+        (
+            SearchTuningServiceAsyncClient,
+            transports.SearchTuningServiceGrpcAsyncIOTransport,
+        ),
+    ],
+)
+def test_api_key_credentials(client_class, transport_class):
+    with mock.patch.object(
+        google.auth._default, "get_api_key_credentials", create=True
+    ) as get_api_key_credentials:
+        mock_cred = mock.Mock()
+        get_api_key_credentials.return_value = mock_cred
+        options = client_options.ClientOptions()
+        options.api_key = "api_key"
+        with mock.patch.object(transport_class, "__init__") as patched:
+            patched.return_value = None
+            client = client_class(client_options=options)
+            patched.assert_called_once_with(
+                credentials=mock_cred,
+                credentials_file=None,
+                host=client._DEFAULT_ENDPOINT_TEMPLATE.format(
+                    UNIVERSE_DOMAIN=client._DEFAULT_UNIVERSE
+                ),
+                scopes=None,
+                client_cert_source_for_mtls=None,
+                quota_project_id=None,
+                client_info=transports.base.DEFAULT_CLIENT_INFO,
+                always_use_jwt_access=True,
+                api_audience=None,
+            )
diff --git a/packages/google-cloud-discoveryengine/tests/unit/gapic/discoveryengine_v1/test_user_event_service.py b/packages/google-cloud-discoveryengine/tests/unit/gapic/discoveryengine_v1/test_user_event_service.py
index 08b5d51e76e2..c56cf06b35ec 100644
--- a/packages/google-cloud-discoveryengine/tests/unit/gapic/discoveryengine_v1/test_user_event_service.py
+++ b/packages/google-cloud-discoveryengine/tests/unit/gapic/discoveryengine_v1/test_user_event_service.py
@@ -67,6 +67,7 @@
 from google.cloud.discoveryengine_v1.types import (
     common,
     import_config,
+    purge_config,
     user_event,
     user_event_service,
 )
@@ -1809,6 +1810,309 @@ async def test_collect_user_event_field_headers_async():
     ) in kw["metadata"]
 
 
+@pytest.mark.parametrize(
+    "request_type",
+    [
+        purge_config.PurgeUserEventsRequest,
+        dict,
+    ],
+)
+def test_purge_user_events(request_type, transport: str = "grpc"):
+    client = UserEventServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport=transport,
+    )
+
+    # Everything is optional in proto3 as far as the runtime is concerned,
+    # and we are mocking out the actual API, so just send an empty request.
+    request = request_type()
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.purge_user_events), "__call__"
+    ) as call:
+        # Designate an appropriate return value for the call.
+        call.return_value = operations_pb2.Operation(name="operations/spam")
+        response = client.purge_user_events(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert len(call.mock_calls) == 1
+        _, args, _ = call.mock_calls[0]
+        request = purge_config.PurgeUserEventsRequest()
+        assert args[0] == request
+
+    # Establish that the response is the type that we expect.
+    assert isinstance(response, future.Future)
+
+
+def test_purge_user_events_empty_call():
+    # This test is a coverage failsafe to make sure that totally empty calls,
+    # i.e. request == None and no flattened fields passed, work.
+    client = UserEventServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="grpc",
+    )
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.purge_user_events), "__call__"
+    ) as call:
+        call.return_value.name = (
+            "foo"  # operation_request.operation in compute client(s) expect a string.
+        )
+        client.purge_user_events()
+        call.assert_called()
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == purge_config.PurgeUserEventsRequest()
+
+
+def test_purge_user_events_non_empty_request_with_auto_populated_field():
+    # This test is a coverage failsafe to make sure that UUID4 fields are
+    # automatically populated, according to AIP-4235, with non-empty requests.
+    client = UserEventServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="grpc",
+    )
+
+    # Populate all string fields in the request which are not UUID4
+    # since we want to check that UUID4 are populated automatically
+    # if they meet the requirements of AIP 4235.
+    request = purge_config.PurgeUserEventsRequest(
+        parent="parent_value",
+        filter="filter_value",
+    )
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.purge_user_events), "__call__"
+    ) as call:
+        call.return_value.name = (
+            "foo"  # operation_request.operation in compute client(s) expect a string.
+        )
+        client.purge_user_events(request=request)
+        call.assert_called()
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == purge_config.PurgeUserEventsRequest(
+            parent="parent_value",
+            filter="filter_value",
+        )
+
+
+def test_purge_user_events_use_cached_wrapped_rpc():
+    # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
+    # instead of constructing them on each call
+    with mock.patch("google.api_core.gapic_v1.method.wrap_method") as wrapper_fn:
+        client = UserEventServiceClient(
+            credentials=ga_credentials.AnonymousCredentials(),
+            transport="grpc",
+        )
+
+        # Should wrap all calls on client creation
+        assert wrapper_fn.call_count > 0
+        wrapper_fn.reset_mock()
+
+        # Ensure method has been cached
+        assert client._transport.purge_user_events in client._transport._wrapped_methods
+
+        # Replace cached wrapped function with mock
+        mock_rpc = mock.Mock()
+        mock_rpc.return_value.name = (
+            "foo"  # operation_request.operation in compute client(s) expect a string.
+        )
+        client._transport._wrapped_methods[
+            client._transport.purge_user_events
+        ] = mock_rpc
+        request = {}
+        client.purge_user_events(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert mock_rpc.call_count == 1
+
+        # Operation methods call wrapper_fn to build a cached
+        # client._transport.operations_client instance on first rpc call.
+        # Subsequent calls should use the cached wrapper
+        wrapper_fn.reset_mock()
+
+        client.purge_user_events(request)
+
+        # Establish that a new wrapper was not created for this call
+        assert wrapper_fn.call_count == 0
+        assert mock_rpc.call_count == 2
+
+
+@pytest.mark.asyncio
+async def test_purge_user_events_empty_call_async():
+    # This test is a coverage failsafe to make sure that totally empty calls,
+    # i.e. request == None and no flattened fields passed, work.
+    client = UserEventServiceAsyncClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="grpc_asyncio",
+    )
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.purge_user_events), "__call__"
+    ) as call:
+        # Designate an appropriate return value for the call.
+        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
+            operations_pb2.Operation(name="operations/spam")
+        )
+        response = await client.purge_user_events()
+        call.assert_called()
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == purge_config.PurgeUserEventsRequest()
+
+
+@pytest.mark.asyncio
+async def test_purge_user_events_async_use_cached_wrapped_rpc(
+    transport: str = "grpc_asyncio",
+):
+    # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
+    # instead of constructing them on each call
+    with mock.patch("google.api_core.gapic_v1.method_async.wrap_method") as wrapper_fn:
+        client = UserEventServiceAsyncClient(
+            credentials=ga_credentials.AnonymousCredentials(),
+            transport=transport,
+        )
+
+        # Should wrap all calls on client creation
+        assert wrapper_fn.call_count > 0
+        wrapper_fn.reset_mock()
+
+        # Ensure method has been cached
+        assert (
+            client._client._transport.purge_user_events
+            in client._client._transport._wrapped_methods
+        )
+
+        # Replace cached wrapped function with mock
+        mock_rpc = mock.AsyncMock()
+        mock_rpc.return_value = mock.Mock()
+        client._client._transport._wrapped_methods[
+            client._client._transport.purge_user_events
+        ] = mock_rpc
+
+        request = {}
+        await client.purge_user_events(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert mock_rpc.call_count == 1
+
+        # Operation methods call wrapper_fn to build a cached
+        # client._transport.operations_client instance on first rpc call.
+        # Subsequent calls should use the cached wrapper
+        wrapper_fn.reset_mock()
+
+        await client.purge_user_events(request)
+
+        # Establish that a new wrapper was not created for this call
+        assert wrapper_fn.call_count == 0
+        assert mock_rpc.call_count == 2
+
+
+@pytest.mark.asyncio
+async def test_purge_user_events_async(
+    transport: str = "grpc_asyncio", request_type=purge_config.PurgeUserEventsRequest
+):
+    client = UserEventServiceAsyncClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport=transport,
+    )
+
+    # Everything is optional in proto3 as far as the runtime is concerned,
+    # and we are mocking out the actual API, so just send an empty request.
+    request = request_type()
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.purge_user_events), "__call__"
+    ) as call:
+        # Designate an appropriate return value for the call.
+        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
+            operations_pb2.Operation(name="operations/spam")
+        )
+        response = await client.purge_user_events(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert len(call.mock_calls)
+        _, args, _ = call.mock_calls[0]
+        request = purge_config.PurgeUserEventsRequest()
+        assert args[0] == request
+
+    # Establish that the response is the type that we expect.
+    assert isinstance(response, future.Future)
+
+
+@pytest.mark.asyncio
+async def test_purge_user_events_async_from_dict():
+    await test_purge_user_events_async(request_type=dict)
+
+
+def test_purge_user_events_field_headers():
+    client = UserEventServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+
+    # Any value that is part of the HTTP/1.1 URI should be sent as
+    # a field header. Set these to a non-empty value.
+    request = purge_config.PurgeUserEventsRequest()
+
+    request.parent = "parent_value"
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.purge_user_events), "__call__"
+    ) as call:
+        call.return_value = operations_pb2.Operation(name="operations/op")
+        client.purge_user_events(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert len(call.mock_calls) == 1
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == request
+
+    # Establish that the field header was sent.
+    _, _, kw = call.mock_calls[0]
+    assert (
+        "x-goog-request-params",
+        "parent=parent_value",
+    ) in kw["metadata"]
+
+
+@pytest.mark.asyncio
+async def test_purge_user_events_field_headers_async():
+    client = UserEventServiceAsyncClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+
+    # Any value that is part of the HTTP/1.1 URI should be sent as
+    # a field header. Set these to a non-empty value.
+    request = purge_config.PurgeUserEventsRequest()
+
+    request.parent = "parent_value"
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.purge_user_events), "__call__"
+    ) as call:
+        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
+            operations_pb2.Operation(name="operations/op")
+        )
+        await client.purge_user_events(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert len(call.mock_calls)
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == request
+
+    # Establish that the field header was sent.
+    _, _, kw = call.mock_calls[0]
+    assert (
+        "x-goog-request-params",
+        "parent=parent_value",
+    ) in kw["metadata"]
+
+
 @pytest.mark.parametrize(
     "request_type",
     [
@@ -2151,6 +2455,7 @@ def test_write_user_event_rest(request_type):
                 "uri": "uri_value",
                 "quantity": 895,
                 "promotion_ids": ["promotion_ids_value1", "promotion_ids_value2"],
+                "joined": True,
             }
         ],
         "panel": {
@@ -2792,6 +3097,265 @@ def test_collect_user_event_rest_error():
     )
 
 
+@pytest.mark.parametrize(
+    "request_type",
+    [
+        purge_config.PurgeUserEventsRequest,
+        dict,
+    ],
+)
+def test_purge_user_events_rest(request_type):
+    client = UserEventServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="rest",
+    )
+
+    # send a request that will satisfy transcoding
+    request_init = {"parent": "projects/sample1/locations/sample2/dataStores/sample3"}
+    request = request_type(**request_init)
+
+    # Mock the http request call within the method and fake a response.
+    with mock.patch.object(type(client.transport._session), "request") as req:
+        # Designate an appropriate value for the returned response.
+        return_value = operations_pb2.Operation(name="operations/spam")
+
+        # Wrap the value into a proper Response obj
+        response_value = Response()
+        response_value.status_code = 200
+        json_return_value = json_format.MessageToJson(return_value)
+
+        response_value._content = json_return_value.encode("UTF-8")
+        req.return_value = response_value
+        response = client.purge_user_events(request)
+
+    # Establish that the response is the type that we expect.
+    assert response.operation.name == "operations/spam"
+
+
+def test_purge_user_events_rest_use_cached_wrapped_rpc():
+    # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
+    # instead of constructing them on each call
+    with mock.patch("google.api_core.gapic_v1.method.wrap_method") as wrapper_fn:
+        client = UserEventServiceClient(
+            credentials=ga_credentials.AnonymousCredentials(),
+            transport="rest",
+        )
+
+        # Should wrap all calls on client creation
+        assert wrapper_fn.call_count > 0
+        wrapper_fn.reset_mock()
+
+        # Ensure method has been cached
+        assert client._transport.purge_user_events in client._transport._wrapped_methods
+
+        # Replace cached wrapped function with mock
+        mock_rpc = mock.Mock()
+        mock_rpc.return_value.name = (
+            "foo"  # operation_request.operation in compute client(s) expect a string.
+        )
+        client._transport._wrapped_methods[
+            client._transport.purge_user_events
+        ] = mock_rpc
+
+        request = {}
+        client.purge_user_events(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert mock_rpc.call_count == 1
+
+        # Operation methods build a cached wrapper on first rpc call
+        # subsequent calls should use the cached wrapper
+        wrapper_fn.reset_mock()
+
+        client.purge_user_events(request)
+
+        # Establish that a new wrapper was not created for this call
+        assert wrapper_fn.call_count == 0
+        assert mock_rpc.call_count == 2
+
+
+def test_purge_user_events_rest_required_fields(
+    request_type=purge_config.PurgeUserEventsRequest,
+):
+    transport_class = transports.UserEventServiceRestTransport
+
+    request_init = {}
+    request_init["parent"] = ""
+    request_init["filter"] = ""
+    request = request_type(**request_init)
+    pb_request = request_type.pb(request)
+    jsonified_request = json.loads(
+        json_format.MessageToJson(pb_request, use_integers_for_enums=False)
+    )
+
+    # verify fields with default values are dropped
+
+    unset_fields = transport_class(
+        credentials=ga_credentials.AnonymousCredentials()
+    ).purge_user_events._get_unset_required_fields(jsonified_request)
+    jsonified_request.update(unset_fields)
+
+    # verify required fields with default values are now present
+
+    jsonified_request["parent"] = "parent_value"
+    jsonified_request["filter"] = "filter_value"
+
+    unset_fields = transport_class(
+        credentials=ga_credentials.AnonymousCredentials()
+    ).purge_user_events._get_unset_required_fields(jsonified_request)
+    jsonified_request.update(unset_fields)
+
+    # verify required fields with non-default values are left alone
+    assert "parent" in jsonified_request
+    assert jsonified_request["parent"] == "parent_value"
+    assert "filter" in jsonified_request
+    assert jsonified_request["filter"] == "filter_value"
+
+    client = UserEventServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="rest",
+    )
+    request = request_type(**request_init)
+
+    # Designate an appropriate value for the returned response.
+    return_value = operations_pb2.Operation(name="operations/spam")
+    # Mock the http request call within the method and fake a response.
+    with mock.patch.object(Session, "request") as req:
+        # We need to mock transcode() because providing default values
+        # for required fields will fail the real version if the http_options
+        # expect actual values for those fields.
+        with mock.patch.object(path_template, "transcode") as transcode:
+            # A uri without fields and an empty body will force all the
+            # request fields to show up in the query_params.
+            pb_request = request_type.pb(request)
+            transcode_result = {
+                "uri": "v1/sample_method",
+                "method": "post",
+                "query_params": pb_request,
+            }
+            transcode_result["body"] = pb_request
+            transcode.return_value = transcode_result
+
+            response_value = Response()
+            response_value.status_code = 200
+            json_return_value = json_format.MessageToJson(return_value)
+
+            response_value._content = json_return_value.encode("UTF-8")
+            req.return_value = response_value
+
+            response = client.purge_user_events(request)
+
+            expected_params = [("$alt", "json;enum-encoding=int")]
+            actual_params = req.call_args.kwargs["params"]
+            assert expected_params == actual_params
+
+
+def test_purge_user_events_rest_unset_required_fields():
+    transport = transports.UserEventServiceRestTransport(
+        credentials=ga_credentials.AnonymousCredentials
+    )
+
+    unset_fields = transport.purge_user_events._get_unset_required_fields({})
+    assert set(unset_fields) == (
+        set(())
+        & set(
+            (
+                "parent",
+                "filter",
+            )
+        )
+    )
+
+
+@pytest.mark.parametrize("null_interceptor", [True, False])
+def test_purge_user_events_rest_interceptors(null_interceptor):
+    transport = transports.UserEventServiceRestTransport(
+        credentials=ga_credentials.AnonymousCredentials(),
+        interceptor=None
+        if null_interceptor
+        else transports.UserEventServiceRestInterceptor(),
+    )
+    client = UserEventServiceClient(transport=transport)
+    with mock.patch.object(
+        type(client.transport._session), "request"
+    ) as req, mock.patch.object(
+        path_template, "transcode"
+    ) as transcode, mock.patch.object(
+        operation.Operation, "_set_result_from_operation"
+    ), mock.patch.object(
+        transports.UserEventServiceRestInterceptor, "post_purge_user_events"
+    ) as post, mock.patch.object(
+        transports.UserEventServiceRestInterceptor, "pre_purge_user_events"
+    ) as pre:
+        pre.assert_not_called()
+        post.assert_not_called()
+        pb_message = purge_config.PurgeUserEventsRequest.pb(
+            purge_config.PurgeUserEventsRequest()
+        )
+        transcode.return_value = {
+            "method": "post",
+            "uri": "my_uri",
+            "body": pb_message,
+            "query_params": pb_message,
+        }
+
+        req.return_value = Response()
+        req.return_value.status_code = 200
+        req.return_value.request = PreparedRequest()
+        req.return_value._content = json_format.MessageToJson(
+            operations_pb2.Operation()
+        )
+
+        request = purge_config.PurgeUserEventsRequest()
+        metadata = [
+            ("key", "val"),
+            ("cephalopod", "squid"),
+        ]
+        pre.return_value = request, metadata
+        post.return_value = operations_pb2.Operation()
+
+        client.purge_user_events(
+            request,
+            metadata=[
+                ("key", "val"),
+                ("cephalopod", "squid"),
+            ],
+        )
+
+        pre.assert_called_once()
+        post.assert_called_once()
+
+
+def test_purge_user_events_rest_bad_request(
+    transport: str = "rest", request_type=purge_config.PurgeUserEventsRequest
+):
+    client = UserEventServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport=transport,
+    )
+
+    # send a request that will satisfy transcoding
+    request_init = {"parent": "projects/sample1/locations/sample2/dataStores/sample3"}
+    request = request_type(**request_init)
+
+    # Mock the http request call within the method and fake a BadRequest error.
+    with mock.patch.object(Session, "request") as req, pytest.raises(
+        core_exceptions.BadRequest
+    ):
+        # Wrap the value into a proper Response obj
+        response_value = Response()
+        response_value.status_code = 400
+        response_value.request = Request()
+        req.return_value = response_value
+        client.purge_user_events(request)
+
+
+def test_purge_user_events_rest_error():
+    client = UserEventServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(), transport="rest"
+    )
+
+
 @pytest.mark.parametrize(
     "request_type",
     [
@@ -3182,6 +3746,7 @@ def test_user_event_service_base_transport():
     methods = (
         "write_user_event",
         "collect_user_event",
+        "purge_user_events",
         "import_user_events",
         "get_operation",
         "cancel_operation",
@@ -3472,6 +4037,9 @@ def test_user_event_service_client_transport_session_collision(transport_name):
     session1 = client1.transport.collect_user_event._session
     session2 = client2.transport.collect_user_event._session
     assert session1 != session2
+    session1 = client1.transport.purge_user_events._session
+    session2 = client2.transport.purge_user_events._session
+    assert session1 != session2
     session1 = client1.transport.import_user_events._session
     session2 = client2.transport.import_user_events._session
     assert session1 != session2
diff --git a/packages/google-cloud-discoveryengine/tests/unit/gapic/discoveryengine_v1alpha/test_data_store_service.py b/packages/google-cloud-discoveryengine/tests/unit/gapic/discoveryengine_v1alpha/test_data_store_service.py
index 961c537481ba..b54085a025f3 100644
--- a/packages/google-cloud-discoveryengine/tests/unit/gapic/discoveryengine_v1alpha/test_data_store_service.py
+++ b/packages/google-cloud-discoveryengine/tests/unit/gapic/discoveryengine_v1alpha/test_data_store_service.py
@@ -4181,6 +4181,10 @@ def test_create_data_store_rest(request_type):
             "external_idp_config": {"workforce_pool_name": "workforce_pool_name_value"},
         },
         "acl_enabled": True,
+        "workspace_config": {
+            "type_": 1,
+            "dasher_customer_id": "dasher_customer_id_value",
+        },
         "document_processing_config": {
             "name": "name_value",
             "chunking_config": {
@@ -5653,6 +5657,10 @@ def test_update_data_store_rest(request_type):
             "external_idp_config": {"workforce_pool_name": "workforce_pool_name_value"},
         },
         "acl_enabled": True,
+        "workspace_config": {
+            "type_": 1,
+            "dasher_customer_id": "dasher_customer_id_value",
+        },
         "document_processing_config": {
             "name": "name_value",
             "chunking_config": {
diff --git a/packages/google-cloud-discoveryengine/tests/unit/gapic/discoveryengine_v1alpha/test_document_service.py b/packages/google-cloud-discoveryengine/tests/unit/gapic/discoveryengine_v1alpha/test_document_service.py
index 8adf368a1a3b..b7b3e0915308 100644
--- a/packages/google-cloud-discoveryengine/tests/unit/gapic/discoveryengine_v1alpha/test_document_service.py
+++ b/packages/google-cloud-discoveryengine/tests/unit/gapic/discoveryengine_v1alpha/test_document_service.py
@@ -45,10 +45,12 @@
 from google.cloud.location import locations_pb2
 from google.longrunning import operations_pb2  # type: ignore
 from google.oauth2 import service_account
+from google.protobuf import any_pb2  # type: ignore
 from google.protobuf import field_mask_pb2  # type: ignore
 from google.protobuf import json_format
 from google.protobuf import struct_pb2  # type: ignore
 from google.protobuf import timestamp_pb2  # type: ignore
+from google.rpc import status_pb2  # type: ignore
 from google.type import date_pb2  # type: ignore
 import grpc
 from grpc.experimental import aio
@@ -4302,6 +4304,387 @@ async def test_get_processed_document_flattened_error_async():
         )
 
 
+@pytest.mark.parametrize(
+    "request_type",
+    [
+        document_service.BatchGetDocumentsMetadataRequest,
+        dict,
+    ],
+)
+def test_batch_get_documents_metadata(request_type, transport: str = "grpc"):
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport=transport,
+    )
+
+    # Everything is optional in proto3 as far as the runtime is concerned,
+    # and we are mocking out the actual API, so just send an empty request.
+    request = request_type()
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.batch_get_documents_metadata), "__call__"
+    ) as call:
+        # Designate an appropriate return value for the call.
+        call.return_value = document_service.BatchGetDocumentsMetadataResponse()
+        response = client.batch_get_documents_metadata(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert len(call.mock_calls) == 1
+        _, args, _ = call.mock_calls[0]
+        request = document_service.BatchGetDocumentsMetadataRequest()
+        assert args[0] == request
+
+    # Establish that the response is the type that we expect.
+    assert isinstance(response, document_service.BatchGetDocumentsMetadataResponse)
+
+
+def test_batch_get_documents_metadata_empty_call():
+    # This test is a coverage failsafe to make sure that totally empty calls,
+    # i.e. request == None and no flattened fields passed, work.
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="grpc",
+    )
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.batch_get_documents_metadata), "__call__"
+    ) as call:
+        call.return_value.name = (
+            "foo"  # operation_request.operation in compute client(s) expect a string.
+        )
+        client.batch_get_documents_metadata()
+        call.assert_called()
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == document_service.BatchGetDocumentsMetadataRequest()
+
+
+def test_batch_get_documents_metadata_non_empty_request_with_auto_populated_field():
+    # This test is a coverage failsafe to make sure that UUID4 fields are
+    # automatically populated, according to AIP-4235, with non-empty requests.
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="grpc",
+    )
+
+    # Populate all string fields in the request which are not UUID4
+    # since we want to check that UUID4 are populated automatically
+    # if they meet the requirements of AIP 4235.
+    request = document_service.BatchGetDocumentsMetadataRequest(
+        parent="parent_value",
+    )
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.batch_get_documents_metadata), "__call__"
+    ) as call:
+        call.return_value.name = (
+            "foo"  # operation_request.operation in compute client(s) expect a string.
+        )
+        client.batch_get_documents_metadata(request=request)
+        call.assert_called()
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == document_service.BatchGetDocumentsMetadataRequest(
+            parent="parent_value",
+        )
+
+
+def test_batch_get_documents_metadata_use_cached_wrapped_rpc():
+    # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
+    # instead of constructing them on each call
+    with mock.patch("google.api_core.gapic_v1.method.wrap_method") as wrapper_fn:
+        client = DocumentServiceClient(
+            credentials=ga_credentials.AnonymousCredentials(),
+            transport="grpc",
+        )
+
+        # Should wrap all calls on client creation
+        assert wrapper_fn.call_count > 0
+        wrapper_fn.reset_mock()
+
+        # Ensure method has been cached
+        assert (
+            client._transport.batch_get_documents_metadata
+            in client._transport._wrapped_methods
+        )
+
+        # Replace cached wrapped function with mock
+        mock_rpc = mock.Mock()
+        mock_rpc.return_value.name = (
+            "foo"  # operation_request.operation in compute client(s) expect a string.
+        )
+        client._transport._wrapped_methods[
+            client._transport.batch_get_documents_metadata
+        ] = mock_rpc
+        request = {}
+        client.batch_get_documents_metadata(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert mock_rpc.call_count == 1
+
+        client.batch_get_documents_metadata(request)
+
+        # Establish that a new wrapper was not created for this call
+        assert wrapper_fn.call_count == 0
+        assert mock_rpc.call_count == 2
+
+
+@pytest.mark.asyncio
+async def test_batch_get_documents_metadata_empty_call_async():
+    # This test is a coverage failsafe to make sure that totally empty calls,
+    # i.e. request == None and no flattened fields passed, work.
+    client = DocumentServiceAsyncClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="grpc_asyncio",
+    )
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.batch_get_documents_metadata), "__call__"
+    ) as call:
+        # Designate an appropriate return value for the call.
+        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
+            document_service.BatchGetDocumentsMetadataResponse()
+        )
+        response = await client.batch_get_documents_metadata()
+        call.assert_called()
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == document_service.BatchGetDocumentsMetadataRequest()
+
+
+@pytest.mark.asyncio
+async def test_batch_get_documents_metadata_async_use_cached_wrapped_rpc(
+    transport: str = "grpc_asyncio",
+):
+    # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
+    # instead of constructing them on each call
+    with mock.patch("google.api_core.gapic_v1.method_async.wrap_method") as wrapper_fn:
+        client = DocumentServiceAsyncClient(
+            credentials=ga_credentials.AnonymousCredentials(),
+            transport=transport,
+        )
+
+        # Should wrap all calls on client creation
+        assert wrapper_fn.call_count > 0
+        wrapper_fn.reset_mock()
+
+        # Ensure method has been cached
+        assert (
+            client._client._transport.batch_get_documents_metadata
+            in client._client._transport._wrapped_methods
+        )
+
+        # Replace cached wrapped function with mock
+        mock_rpc = mock.AsyncMock()
+        mock_rpc.return_value = mock.Mock()
+        client._client._transport._wrapped_methods[
+            client._client._transport.batch_get_documents_metadata
+        ] = mock_rpc
+
+        request = {}
+        await client.batch_get_documents_metadata(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert mock_rpc.call_count == 1
+
+        await client.batch_get_documents_metadata(request)
+
+        # Establish that a new wrapper was not created for this call
+        assert wrapper_fn.call_count == 0
+        assert mock_rpc.call_count == 2
+
+
+@pytest.mark.asyncio
+async def test_batch_get_documents_metadata_async(
+    transport: str = "grpc_asyncio",
+    request_type=document_service.BatchGetDocumentsMetadataRequest,
+):
+    client = DocumentServiceAsyncClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport=transport,
+    )
+
+    # Everything is optional in proto3 as far as the runtime is concerned,
+    # and we are mocking out the actual API, so just send an empty request.
+    request = request_type()
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.batch_get_documents_metadata), "__call__"
+    ) as call:
+        # Designate an appropriate return value for the call.
+        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
+            document_service.BatchGetDocumentsMetadataResponse()
+        )
+        response = await client.batch_get_documents_metadata(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert len(call.mock_calls)
+        _, args, _ = call.mock_calls[0]
+        request = document_service.BatchGetDocumentsMetadataRequest()
+        assert args[0] == request
+
+    # Establish that the response is the type that we expect.
+    assert isinstance(response, document_service.BatchGetDocumentsMetadataResponse)
+
+
+@pytest.mark.asyncio
+async def test_batch_get_documents_metadata_async_from_dict():
+    await test_batch_get_documents_metadata_async(request_type=dict)
+
+
+def test_batch_get_documents_metadata_field_headers():
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+
+    # Any value that is part of the HTTP/1.1 URI should be sent as
+    # a field header. Set these to a non-empty value.
+    request = document_service.BatchGetDocumentsMetadataRequest()
+
+    request.parent = "parent_value"
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.batch_get_documents_metadata), "__call__"
+    ) as call:
+        call.return_value = document_service.BatchGetDocumentsMetadataResponse()
+        client.batch_get_documents_metadata(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert len(call.mock_calls) == 1
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == request
+
+    # Establish that the field header was sent.
+    _, _, kw = call.mock_calls[0]
+    assert (
+        "x-goog-request-params",
+        "parent=parent_value",
+    ) in kw["metadata"]
+
+
+@pytest.mark.asyncio
+async def test_batch_get_documents_metadata_field_headers_async():
+    client = DocumentServiceAsyncClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+
+    # Any value that is part of the HTTP/1.1 URI should be sent as
+    # a field header. Set these to a non-empty value.
+    request = document_service.BatchGetDocumentsMetadataRequest()
+
+    request.parent = "parent_value"
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.batch_get_documents_metadata), "__call__"
+    ) as call:
+        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
+            document_service.BatchGetDocumentsMetadataResponse()
+        )
+        await client.batch_get_documents_metadata(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert len(call.mock_calls)
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == request
+
+    # Establish that the field header was sent.
+    _, _, kw = call.mock_calls[0]
+    assert (
+        "x-goog-request-params",
+        "parent=parent_value",
+    ) in kw["metadata"]
+
+
+def test_batch_get_documents_metadata_flattened():
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.batch_get_documents_metadata), "__call__"
+    ) as call:
+        # Designate an appropriate return value for the call.
+        call.return_value = document_service.BatchGetDocumentsMetadataResponse()
+        # Call the method with a truthy value for each flattened field,
+        # using the keyword arguments to the method.
+        client.batch_get_documents_metadata(
+            parent="parent_value",
+        )
+
+        # Establish that the underlying call was made with the expected
+        # request object values.
+        assert len(call.mock_calls) == 1
+        _, args, _ = call.mock_calls[0]
+        arg = args[0].parent
+        mock_val = "parent_value"
+        assert arg == mock_val
+
+
+def test_batch_get_documents_metadata_flattened_error():
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+
+    # Attempting to call a method with both a request object and flattened
+    # fields is an error.
+    with pytest.raises(ValueError):
+        client.batch_get_documents_metadata(
+            document_service.BatchGetDocumentsMetadataRequest(),
+            parent="parent_value",
+        )
+
+
+@pytest.mark.asyncio
+async def test_batch_get_documents_metadata_flattened_async():
+    client = DocumentServiceAsyncClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.batch_get_documents_metadata), "__call__"
+    ) as call:
+        # Designate an appropriate return value for the call.
+        call.return_value = document_service.BatchGetDocumentsMetadataResponse()
+
+        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
+            document_service.BatchGetDocumentsMetadataResponse()
+        )
+        # Call the method with a truthy value for each flattened field,
+        # using the keyword arguments to the method.
+        response = await client.batch_get_documents_metadata(
+            parent="parent_value",
+        )
+
+        # Establish that the underlying call was made with the expected
+        # request object values.
+        assert len(call.mock_calls)
+        _, args, _ = call.mock_calls[0]
+        arg = args[0].parent
+        mock_val = "parent_value"
+        assert arg == mock_val
+
+
+@pytest.mark.asyncio
+async def test_batch_get_documents_metadata_flattened_error_async():
+    client = DocumentServiceAsyncClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+
+    # Attempting to call a method with both a request object and flattened
+    # fields is an error.
+    with pytest.raises(ValueError):
+        await client.batch_get_documents_metadata(
+            document_service.BatchGetDocumentsMetadataRequest(),
+            parent="parent_value",
+        )
+
+
 @pytest.mark.parametrize(
     "request_type",
     [
@@ -4309,7 +4692,321 @@ async def test_get_processed_document_flattened_error_async():
         dict,
     ],
 )
-def test_get_document_rest(request_type):
+def test_get_document_rest(request_type):
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="rest",
+    )
+
+    # send a request that will satisfy transcoding
+    request_init = {
+        "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
+    }
+    request = request_type(**request_init)
+
+    # Mock the http request call within the method and fake a response.
+    with mock.patch.object(type(client.transport._session), "request") as req:
+        # Designate an appropriate value for the returned response.
+        return_value = document.Document(
+            name="name_value",
+            id="id_value",
+            schema_id="schema_id_value",
+            parent_document_id="parent_document_id_value",
+            json_data="json_data_value",
+        )
+
+        # Wrap the value into a proper Response obj
+        response_value = Response()
+        response_value.status_code = 200
+        # Convert return value to protobuf type
+        return_value = document.Document.pb(return_value)
+        json_return_value = json_format.MessageToJson(return_value)
+
+        response_value._content = json_return_value.encode("UTF-8")
+        req.return_value = response_value
+        response = client.get_document(request)
+
+    # Establish that the response is the type that we expect.
+    assert isinstance(response, document.Document)
+    assert response.name == "name_value"
+    assert response.id == "id_value"
+    assert response.schema_id == "schema_id_value"
+    assert response.parent_document_id == "parent_document_id_value"
+
+
+def test_get_document_rest_use_cached_wrapped_rpc():
+    # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
+    # instead of constructing them on each call
+    with mock.patch("google.api_core.gapic_v1.method.wrap_method") as wrapper_fn:
+        client = DocumentServiceClient(
+            credentials=ga_credentials.AnonymousCredentials(),
+            transport="rest",
+        )
+
+        # Should wrap all calls on client creation
+        assert wrapper_fn.call_count > 0
+        wrapper_fn.reset_mock()
+
+        # Ensure method has been cached
+        assert client._transport.get_document in client._transport._wrapped_methods
+
+        # Replace cached wrapped function with mock
+        mock_rpc = mock.Mock()
+        mock_rpc.return_value.name = (
+            "foo"  # operation_request.operation in compute client(s) expect a string.
+        )
+        client._transport._wrapped_methods[client._transport.get_document] = mock_rpc
+
+        request = {}
+        client.get_document(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert mock_rpc.call_count == 1
+
+        client.get_document(request)
+
+        # Establish that a new wrapper was not created for this call
+        assert wrapper_fn.call_count == 0
+        assert mock_rpc.call_count == 2
+
+
+def test_get_document_rest_required_fields(
+    request_type=document_service.GetDocumentRequest,
+):
+    transport_class = transports.DocumentServiceRestTransport
+
+    request_init = {}
+    request_init["name"] = ""
+    request = request_type(**request_init)
+    pb_request = request_type.pb(request)
+    jsonified_request = json.loads(
+        json_format.MessageToJson(pb_request, use_integers_for_enums=False)
+    )
+
+    # verify fields with default values are dropped
+
+    unset_fields = transport_class(
+        credentials=ga_credentials.AnonymousCredentials()
+    ).get_document._get_unset_required_fields(jsonified_request)
+    jsonified_request.update(unset_fields)
+
+    # verify required fields with default values are now present
+
+    jsonified_request["name"] = "name_value"
+
+    unset_fields = transport_class(
+        credentials=ga_credentials.AnonymousCredentials()
+    ).get_document._get_unset_required_fields(jsonified_request)
+    jsonified_request.update(unset_fields)
+
+    # verify required fields with non-default values are left alone
+    assert "name" in jsonified_request
+    assert jsonified_request["name"] == "name_value"
+
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="rest",
+    )
+    request = request_type(**request_init)
+
+    # Designate an appropriate value for the returned response.
+    return_value = document.Document()
+    # Mock the http request call within the method and fake a response.
+    with mock.patch.object(Session, "request") as req:
+        # We need to mock transcode() because providing default values
+        # for required fields will fail the real version if the http_options
+        # expect actual values for those fields.
+        with mock.patch.object(path_template, "transcode") as transcode:
+            # A uri without fields and an empty body will force all the
+            # request fields to show up in the query_params.
+            pb_request = request_type.pb(request)
+            transcode_result = {
+                "uri": "v1/sample_method",
+                "method": "get",
+                "query_params": pb_request,
+            }
+            transcode.return_value = transcode_result
+
+            response_value = Response()
+            response_value.status_code = 200
+
+            # Convert return value to protobuf type
+            return_value = document.Document.pb(return_value)
+            json_return_value = json_format.MessageToJson(return_value)
+
+            response_value._content = json_return_value.encode("UTF-8")
+            req.return_value = response_value
+
+            response = client.get_document(request)
+
+            expected_params = [("$alt", "json;enum-encoding=int")]
+            actual_params = req.call_args.kwargs["params"]
+            assert expected_params == actual_params
+
+
+def test_get_document_rest_unset_required_fields():
+    transport = transports.DocumentServiceRestTransport(
+        credentials=ga_credentials.AnonymousCredentials
+    )
+
+    unset_fields = transport.get_document._get_unset_required_fields({})
+    assert set(unset_fields) == (set(()) & set(("name",)))
+
+
+@pytest.mark.parametrize("null_interceptor", [True, False])
+def test_get_document_rest_interceptors(null_interceptor):
+    transport = transports.DocumentServiceRestTransport(
+        credentials=ga_credentials.AnonymousCredentials(),
+        interceptor=None
+        if null_interceptor
+        else transports.DocumentServiceRestInterceptor(),
+    )
+    client = DocumentServiceClient(transport=transport)
+    with mock.patch.object(
+        type(client.transport._session), "request"
+    ) as req, mock.patch.object(
+        path_template, "transcode"
+    ) as transcode, mock.patch.object(
+        transports.DocumentServiceRestInterceptor, "post_get_document"
+    ) as post, mock.patch.object(
+        transports.DocumentServiceRestInterceptor, "pre_get_document"
+    ) as pre:
+        pre.assert_not_called()
+        post.assert_not_called()
+        pb_message = document_service.GetDocumentRequest.pb(
+            document_service.GetDocumentRequest()
+        )
+        transcode.return_value = {
+            "method": "post",
+            "uri": "my_uri",
+            "body": pb_message,
+            "query_params": pb_message,
+        }
+
+        req.return_value = Response()
+        req.return_value.status_code = 200
+        req.return_value.request = PreparedRequest()
+        req.return_value._content = document.Document.to_json(document.Document())
+
+        request = document_service.GetDocumentRequest()
+        metadata = [
+            ("key", "val"),
+            ("cephalopod", "squid"),
+        ]
+        pre.return_value = request, metadata
+        post.return_value = document.Document()
+
+        client.get_document(
+            request,
+            metadata=[
+                ("key", "val"),
+                ("cephalopod", "squid"),
+            ],
+        )
+
+        pre.assert_called_once()
+        post.assert_called_once()
+
+
+def test_get_document_rest_bad_request(
+    transport: str = "rest", request_type=document_service.GetDocumentRequest
+):
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport=transport,
+    )
+
+    # send a request that will satisfy transcoding
+    request_init = {
+        "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
+    }
+    request = request_type(**request_init)
+
+    # Mock the http request call within the method and fake a BadRequest error.
+    with mock.patch.object(Session, "request") as req, pytest.raises(
+        core_exceptions.BadRequest
+    ):
+        # Wrap the value into a proper Response obj
+        response_value = Response()
+        response_value.status_code = 400
+        response_value.request = Request()
+        req.return_value = response_value
+        client.get_document(request)
+
+
+def test_get_document_rest_flattened():
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="rest",
+    )
+
+    # Mock the http request call within the method and fake a response.
+    with mock.patch.object(type(client.transport._session), "request") as req:
+        # Designate an appropriate value for the returned response.
+        return_value = document.Document()
+
+        # get arguments that satisfy an http rule for this method
+        sample_request = {
+            "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
+        }
+
+        # get truthy value for each flattened field
+        mock_args = dict(
+            name="name_value",
+        )
+        mock_args.update(sample_request)
+
+        # Wrap the value into a proper Response obj
+        response_value = Response()
+        response_value.status_code = 200
+        # Convert return value to protobuf type
+        return_value = document.Document.pb(return_value)
+        json_return_value = json_format.MessageToJson(return_value)
+        response_value._content = json_return_value.encode("UTF-8")
+        req.return_value = response_value
+
+        client.get_document(**mock_args)
+
+        # Establish that the underlying call was made with the expected
+        # request object values.
+        assert len(req.mock_calls) == 1
+        _, args, _ = req.mock_calls[0]
+        assert path_template.validate(
+            "%s/v1alpha/{name=projects/*/locations/*/dataStores/*/branches/*/documents/*}"
+            % client.transport._host,
+            args[1],
+        )
+
+
+def test_get_document_rest_flattened_error(transport: str = "rest"):
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport=transport,
+    )
+
+    # Attempting to call a method with both a request object and flattened
+    # fields is an error.
+    with pytest.raises(ValueError):
+        client.get_document(
+            document_service.GetDocumentRequest(),
+            name="name_value",
+        )
+
+
+def test_get_document_rest_error():
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(), transport="rest"
+    )
+
+
+@pytest.mark.parametrize(
+    "request_type",
+    [
+        document_service.ListDocumentsRequest,
+        dict,
+    ],
+)
+def test_list_documents_rest(request_type):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
         transport="rest",
@@ -4317,41 +5014,34 @@ def test_get_document_rest(request_type):
 
     # send a request that will satisfy transcoding
     request_init = {
-        "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
+        "parent": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4"
     }
     request = request_type(**request_init)
 
     # Mock the http request call within the method and fake a response.
     with mock.patch.object(type(client.transport._session), "request") as req:
         # Designate an appropriate value for the returned response.
-        return_value = document.Document(
-            name="name_value",
-            id="id_value",
-            schema_id="schema_id_value",
-            parent_document_id="parent_document_id_value",
-            json_data="json_data_value",
+        return_value = document_service.ListDocumentsResponse(
+            next_page_token="next_page_token_value",
         )
 
         # Wrap the value into a proper Response obj
         response_value = Response()
         response_value.status_code = 200
         # Convert return value to protobuf type
-        return_value = document.Document.pb(return_value)
+        return_value = document_service.ListDocumentsResponse.pb(return_value)
         json_return_value = json_format.MessageToJson(return_value)
 
         response_value._content = json_return_value.encode("UTF-8")
         req.return_value = response_value
-        response = client.get_document(request)
+        response = client.list_documents(request)
 
     # Establish that the response is the type that we expect.
-    assert isinstance(response, document.Document)
-    assert response.name == "name_value"
-    assert response.id == "id_value"
-    assert response.schema_id == "schema_id_value"
-    assert response.parent_document_id == "parent_document_id_value"
+    assert isinstance(response, pagers.ListDocumentsPager)
+    assert response.next_page_token == "next_page_token_value"
 
 
-def test_get_document_rest_use_cached_wrapped_rpc():
+def test_list_documents_rest_use_cached_wrapped_rpc():
     # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
     # instead of constructing them on each call
     with mock.patch("google.api_core.gapic_v1.method.wrap_method") as wrapper_fn:
@@ -4365,35 +5055,35 @@ def test_get_document_rest_use_cached_wrapped_rpc():
         wrapper_fn.reset_mock()
 
         # Ensure method has been cached
-        assert client._transport.get_document in client._transport._wrapped_methods
+        assert client._transport.list_documents in client._transport._wrapped_methods
 
         # Replace cached wrapped function with mock
         mock_rpc = mock.Mock()
         mock_rpc.return_value.name = (
             "foo"  # operation_request.operation in compute client(s) expect a string.
         )
-        client._transport._wrapped_methods[client._transport.get_document] = mock_rpc
+        client._transport._wrapped_methods[client._transport.list_documents] = mock_rpc
 
         request = {}
-        client.get_document(request)
+        client.list_documents(request)
 
         # Establish that the underlying gRPC stub method was called.
         assert mock_rpc.call_count == 1
 
-        client.get_document(request)
+        client.list_documents(request)
 
         # Establish that a new wrapper was not created for this call
         assert wrapper_fn.call_count == 0
         assert mock_rpc.call_count == 2
 
 
-def test_get_document_rest_required_fields(
-    request_type=document_service.GetDocumentRequest,
+def test_list_documents_rest_required_fields(
+    request_type=document_service.ListDocumentsRequest,
 ):
     transport_class = transports.DocumentServiceRestTransport
 
     request_init = {}
-    request_init["name"] = ""
+    request_init["parent"] = ""
     request = request_type(**request_init)
     pb_request = request_type.pb(request)
     jsonified_request = json.loads(
@@ -4404,21 +5094,28 @@ def test_get_document_rest_required_fields(
 
     unset_fields = transport_class(
         credentials=ga_credentials.AnonymousCredentials()
-    ).get_document._get_unset_required_fields(jsonified_request)
+    ).list_documents._get_unset_required_fields(jsonified_request)
     jsonified_request.update(unset_fields)
 
     # verify required fields with default values are now present
 
-    jsonified_request["name"] = "name_value"
+    jsonified_request["parent"] = "parent_value"
 
     unset_fields = transport_class(
         credentials=ga_credentials.AnonymousCredentials()
-    ).get_document._get_unset_required_fields(jsonified_request)
+    ).list_documents._get_unset_required_fields(jsonified_request)
+    # Check that path parameters and body parameters are not mixing in.
+    assert not set(unset_fields) - set(
+        (
+            "page_size",
+            "page_token",
+        )
+    )
     jsonified_request.update(unset_fields)
 
     # verify required fields with non-default values are left alone
-    assert "name" in jsonified_request
-    assert jsonified_request["name"] == "name_value"
+    assert "parent" in jsonified_request
+    assert jsonified_request["parent"] == "parent_value"
 
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
@@ -4427,7 +5124,7 @@ def test_get_document_rest_required_fields(
     request = request_type(**request_init)
 
     # Designate an appropriate value for the returned response.
-    return_value = document.Document()
+    return_value = document_service.ListDocumentsResponse()
     # Mock the http request call within the method and fake a response.
     with mock.patch.object(Session, "request") as req:
         # We need to mock transcode() because providing default values
@@ -4448,30 +5145,38 @@ def test_get_document_rest_required_fields(
             response_value.status_code = 200
 
             # Convert return value to protobuf type
-            return_value = document.Document.pb(return_value)
+            return_value = document_service.ListDocumentsResponse.pb(return_value)
             json_return_value = json_format.MessageToJson(return_value)
 
             response_value._content = json_return_value.encode("UTF-8")
             req.return_value = response_value
 
-            response = client.get_document(request)
+            response = client.list_documents(request)
 
             expected_params = [("$alt", "json;enum-encoding=int")]
             actual_params = req.call_args.kwargs["params"]
             assert expected_params == actual_params
 
 
-def test_get_document_rest_unset_required_fields():
+def test_list_documents_rest_unset_required_fields():
     transport = transports.DocumentServiceRestTransport(
         credentials=ga_credentials.AnonymousCredentials
     )
 
-    unset_fields = transport.get_document._get_unset_required_fields({})
-    assert set(unset_fields) == (set(()) & set(("name",)))
+    unset_fields = transport.list_documents._get_unset_required_fields({})
+    assert set(unset_fields) == (
+        set(
+            (
+                "pageSize",
+                "pageToken",
+            )
+        )
+        & set(("parent",))
+    )
 
 
 @pytest.mark.parametrize("null_interceptor", [True, False])
-def test_get_document_rest_interceptors(null_interceptor):
+def test_list_documents_rest_interceptors(null_interceptor):
     transport = transports.DocumentServiceRestTransport(
         credentials=ga_credentials.AnonymousCredentials(),
         interceptor=None
@@ -4484,14 +5189,14 @@ def test_get_document_rest_interceptors(null_interceptor):
     ) as req, mock.patch.object(
         path_template, "transcode"
     ) as transcode, mock.patch.object(
-        transports.DocumentServiceRestInterceptor, "post_get_document"
+        transports.DocumentServiceRestInterceptor, "post_list_documents"
     ) as post, mock.patch.object(
-        transports.DocumentServiceRestInterceptor, "pre_get_document"
+        transports.DocumentServiceRestInterceptor, "pre_list_documents"
     ) as pre:
         pre.assert_not_called()
         post.assert_not_called()
-        pb_message = document_service.GetDocumentRequest.pb(
-            document_service.GetDocumentRequest()
+        pb_message = document_service.ListDocumentsRequest.pb(
+            document_service.ListDocumentsRequest()
         )
         transcode.return_value = {
             "method": "post",
@@ -4503,17 +5208,19 @@ def test_get_document_rest_interceptors(null_interceptor):
         req.return_value = Response()
         req.return_value.status_code = 200
         req.return_value.request = PreparedRequest()
-        req.return_value._content = document.Document.to_json(document.Document())
+        req.return_value._content = document_service.ListDocumentsResponse.to_json(
+            document_service.ListDocumentsResponse()
+        )
 
-        request = document_service.GetDocumentRequest()
+        request = document_service.ListDocumentsRequest()
         metadata = [
             ("key", "val"),
             ("cephalopod", "squid"),
         ]
         pre.return_value = request, metadata
-        post.return_value = document.Document()
+        post.return_value = document_service.ListDocumentsResponse()
 
-        client.get_document(
+        client.list_documents(
             request,
             metadata=[
                 ("key", "val"),
@@ -4525,8 +5232,8 @@ def test_get_document_rest_interceptors(null_interceptor):
         post.assert_called_once()
 
 
-def test_get_document_rest_bad_request(
-    transport: str = "rest", request_type=document_service.GetDocumentRequest
+def test_list_documents_rest_bad_request(
+    transport: str = "rest", request_type=document_service.ListDocumentsRequest
 ):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
@@ -4535,7 +5242,7 @@ def test_get_document_rest_bad_request(
 
     # send a request that will satisfy transcoding
     request_init = {
-        "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
+        "parent": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4"
     }
     request = request_type(**request_init)
 
@@ -4548,10 +5255,10 @@ def test_get_document_rest_bad_request(
         response_value.status_code = 400
         response_value.request = Request()
         req.return_value = response_value
-        client.get_document(request)
+        client.list_documents(request)
 
 
-def test_get_document_rest_flattened():
+def test_list_documents_rest_flattened():
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
         transport="rest",
@@ -4560,16 +5267,16 @@ def test_get_document_rest_flattened():
     # Mock the http request call within the method and fake a response.
     with mock.patch.object(type(client.transport._session), "request") as req:
         # Designate an appropriate value for the returned response.
-        return_value = document.Document()
+        return_value = document_service.ListDocumentsResponse()
 
         # get arguments that satisfy an http rule for this method
         sample_request = {
-            "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
+            "parent": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4"
         }
 
         # get truthy value for each flattened field
         mock_args = dict(
-            name="name_value",
+            parent="parent_value",
         )
         mock_args.update(sample_request)
 
@@ -4577,25 +5284,25 @@ def test_get_document_rest_flattened():
         response_value = Response()
         response_value.status_code = 200
         # Convert return value to protobuf type
-        return_value = document.Document.pb(return_value)
+        return_value = document_service.ListDocumentsResponse.pb(return_value)
         json_return_value = json_format.MessageToJson(return_value)
         response_value._content = json_return_value.encode("UTF-8")
         req.return_value = response_value
 
-        client.get_document(**mock_args)
+        client.list_documents(**mock_args)
 
         # Establish that the underlying call was made with the expected
         # request object values.
         assert len(req.mock_calls) == 1
         _, args, _ = req.mock_calls[0]
         assert path_template.validate(
-            "%s/v1alpha/{name=projects/*/locations/*/dataStores/*/branches/*/documents/*}"
+            "%s/v1alpha/{parent=projects/*/locations/*/dataStores/*/branches/*}/documents"
             % client.transport._host,
             args[1],
         )
 
 
-def test_get_document_rest_flattened_error(transport: str = "rest"):
+def test_list_documents_rest_flattened_error(transport: str = "rest"):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
         transport=transport,
@@ -4604,26 +5311,85 @@ def test_get_document_rest_flattened_error(transport: str = "rest"):
     # Attempting to call a method with both a request object and flattened
     # fields is an error.
     with pytest.raises(ValueError):
-        client.get_document(
-            document_service.GetDocumentRequest(),
-            name="name_value",
+        client.list_documents(
+            document_service.ListDocumentsRequest(),
+            parent="parent_value",
         )
 
 
-def test_get_document_rest_error():
+def test_list_documents_rest_pager(transport: str = "rest"):
     client = DocumentServiceClient(
-        credentials=ga_credentials.AnonymousCredentials(), transport="rest"
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport=transport,
     )
 
+    # Mock the http request call within the method and fake a response.
+    with mock.patch.object(Session, "request") as req:
+        # TODO(kbandes): remove this mock unless there's a good reason for it.
+        # with mock.patch.object(path_template, 'transcode') as transcode:
+        # Set the response as a series of pages
+        response = (
+            document_service.ListDocumentsResponse(
+                documents=[
+                    document.Document(),
+                    document.Document(),
+                    document.Document(),
+                ],
+                next_page_token="abc",
+            ),
+            document_service.ListDocumentsResponse(
+                documents=[],
+                next_page_token="def",
+            ),
+            document_service.ListDocumentsResponse(
+                documents=[
+                    document.Document(),
+                ],
+                next_page_token="ghi",
+            ),
+            document_service.ListDocumentsResponse(
+                documents=[
+                    document.Document(),
+                    document.Document(),
+                ],
+            ),
+        )
+        # Two responses for two calls
+        response = response + response
+
+        # Wrap the values into proper Response objs
+        response = tuple(
+            document_service.ListDocumentsResponse.to_json(x) for x in response
+        )
+        return_values = tuple(Response() for i in response)
+        for return_val, response_val in zip(return_values, response):
+            return_val._content = response_val.encode("UTF-8")
+            return_val.status_code = 200
+        req.side_effect = return_values
+
+        sample_request = {
+            "parent": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4"
+        }
+
+        pager = client.list_documents(request=sample_request)
+
+        results = list(pager)
+        assert len(results) == 6
+        assert all(isinstance(i, document.Document) for i in results)
+
+        pages = list(client.list_documents(request=sample_request).pages)
+        for page_, token in zip(pages, ["abc", "def", "ghi", ""]):
+            assert page_.raw_page.next_page_token == token
+
 
 @pytest.mark.parametrize(
     "request_type",
     [
-        document_service.ListDocumentsRequest,
+        document_service.CreateDocumentRequest,
         dict,
     ],
 )
-def test_list_documents_rest(request_type):
+def test_create_document_rest(request_type):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
         transport="rest",
@@ -4633,32 +5399,146 @@ def test_list_documents_rest(request_type):
     request_init = {
         "parent": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4"
     }
+    request_init["document"] = {
+        "struct_data": {"fields": {}},
+        "json_data": "json_data_value",
+        "name": "name_value",
+        "id": "id_value",
+        "schema_id": "schema_id_value",
+        "content": {
+            "raw_bytes": b"raw_bytes_blob",
+            "uri": "uri_value",
+            "mime_type": "mime_type_value",
+        },
+        "parent_document_id": "parent_document_id_value",
+        "derived_struct_data": {},
+        "acl_info": {
+            "readers": [
+                {
+                    "principals": [
+                        {"user_id": "user_id_value", "group_id": "group_id_value"}
+                    ],
+                    "idp_wide": True,
+                }
+            ]
+        },
+        "index_time": {"seconds": 751, "nanos": 543},
+        "index_status": {
+            "index_time": {},
+            "error_samples": [
+                {
+                    "code": 411,
+                    "message": "message_value",
+                    "details": [
+                        {
+                            "type_url": "type.googleapis.com/google.protobuf.Duration",
+                            "value": b"\x08\x0c\x10\xdb\x07",
+                        }
+                    ],
+                }
+            ],
+        },
+    }
+    # The version of a generated dependency at test runtime may differ from the version used during generation.
+    # Delete any fields which are not present in the current runtime dependency
+    # See https://github.com/googleapis/gapic-generator-python/issues/1748
+
+    # Determine if the message type is proto-plus or protobuf
+    test_field = document_service.CreateDocumentRequest.meta.fields["document"]
+
+    def get_message_fields(field):
+        # Given a field which is a message (composite type), return a list with
+        # all the fields of the message.
+        # If the field is not a composite type, return an empty list.
+        message_fields = []
+
+        if hasattr(field, "message") and field.message:
+            is_field_type_proto_plus_type = not hasattr(field.message, "DESCRIPTOR")
+
+            if is_field_type_proto_plus_type:
+                message_fields = field.message.meta.fields.values()
+            # Add `# pragma: NO COVER` because there may not be any `*_pb2` field types
+            else:  # pragma: NO COVER
+                message_fields = field.message.DESCRIPTOR.fields
+        return message_fields
+
+    runtime_nested_fields = [
+        (field.name, nested_field.name)
+        for field in get_message_fields(test_field)
+        for nested_field in get_message_fields(field)
+    ]
+
+    subfields_not_in_runtime = []
+
+    # For each item in the sample request, create a list of sub fields which are not present at runtime
+    # Add `# pragma: NO COVER` because this test code will not run if all subfields are present at runtime
+    for field, value in request_init["document"].items():  # pragma: NO COVER
+        result = None
+        is_repeated = False
+        # For repeated fields
+        if isinstance(value, list) and len(value):
+            is_repeated = True
+            result = value[0]
+        # For fields where the type is another message
+        if isinstance(value, dict):
+            result = value
+
+        if result and hasattr(result, "keys"):
+            for subfield in result.keys():
+                if (field, subfield) not in runtime_nested_fields:
+                    subfields_not_in_runtime.append(
+                        {
+                            "field": field,
+                            "subfield": subfield,
+                            "is_repeated": is_repeated,
+                        }
+                    )
+
+    # Remove fields from the sample request which are not present in the runtime version of the dependency
+    # Add `# pragma: NO COVER` because this test code will not run if all subfields are present at runtime
+    for subfield_to_delete in subfields_not_in_runtime:  # pragma: NO COVER
+        field = subfield_to_delete.get("field")
+        field_repeated = subfield_to_delete.get("is_repeated")
+        subfield = subfield_to_delete.get("subfield")
+        if subfield:
+            if field_repeated:
+                for i in range(0, len(request_init["document"][field])):
+                    del request_init["document"][field][i][subfield]
+            else:
+                del request_init["document"][field][subfield]
     request = request_type(**request_init)
 
     # Mock the http request call within the method and fake a response.
     with mock.patch.object(type(client.transport._session), "request") as req:
         # Designate an appropriate value for the returned response.
-        return_value = document_service.ListDocumentsResponse(
-            next_page_token="next_page_token_value",
+        return_value = gcd_document.Document(
+            name="name_value",
+            id="id_value",
+            schema_id="schema_id_value",
+            parent_document_id="parent_document_id_value",
+            json_data="json_data_value",
         )
 
         # Wrap the value into a proper Response obj
         response_value = Response()
         response_value.status_code = 200
         # Convert return value to protobuf type
-        return_value = document_service.ListDocumentsResponse.pb(return_value)
+        return_value = gcd_document.Document.pb(return_value)
         json_return_value = json_format.MessageToJson(return_value)
 
         response_value._content = json_return_value.encode("UTF-8")
         req.return_value = response_value
-        response = client.list_documents(request)
+        response = client.create_document(request)
 
     # Establish that the response is the type that we expect.
-    assert isinstance(response, pagers.ListDocumentsPager)
-    assert response.next_page_token == "next_page_token_value"
+    assert isinstance(response, gcd_document.Document)
+    assert response.name == "name_value"
+    assert response.id == "id_value"
+    assert response.schema_id == "schema_id_value"
+    assert response.parent_document_id == "parent_document_id_value"
 
 
-def test_list_documents_rest_use_cached_wrapped_rpc():
+def test_create_document_rest_use_cached_wrapped_rpc():
     # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
     # instead of constructing them on each call
     with mock.patch("google.api_core.gapic_v1.method.wrap_method") as wrapper_fn:
@@ -4672,35 +5552,36 @@ def test_list_documents_rest_use_cached_wrapped_rpc():
         wrapper_fn.reset_mock()
 
         # Ensure method has been cached
-        assert client._transport.list_documents in client._transport._wrapped_methods
+        assert client._transport.create_document in client._transport._wrapped_methods
 
         # Replace cached wrapped function with mock
         mock_rpc = mock.Mock()
         mock_rpc.return_value.name = (
             "foo"  # operation_request.operation in compute client(s) expect a string.
         )
-        client._transport._wrapped_methods[client._transport.list_documents] = mock_rpc
+        client._transport._wrapped_methods[client._transport.create_document] = mock_rpc
 
         request = {}
-        client.list_documents(request)
+        client.create_document(request)
 
         # Establish that the underlying gRPC stub method was called.
         assert mock_rpc.call_count == 1
 
-        client.list_documents(request)
+        client.create_document(request)
 
         # Establish that a new wrapper was not created for this call
         assert wrapper_fn.call_count == 0
         assert mock_rpc.call_count == 2
 
 
-def test_list_documents_rest_required_fields(
-    request_type=document_service.ListDocumentsRequest,
+def test_create_document_rest_required_fields(
+    request_type=document_service.CreateDocumentRequest,
 ):
     transport_class = transports.DocumentServiceRestTransport
 
     request_init = {}
     request_init["parent"] = ""
+    request_init["document_id"] = ""
     request = request_type(**request_init)
     pb_request = request_type.pb(request)
     jsonified_request = json.loads(
@@ -4708,31 +5589,32 @@ def test_list_documents_rest_required_fields(
     )
 
     # verify fields with default values are dropped
+    assert "documentId" not in jsonified_request
 
     unset_fields = transport_class(
         credentials=ga_credentials.AnonymousCredentials()
-    ).list_documents._get_unset_required_fields(jsonified_request)
+    ).create_document._get_unset_required_fields(jsonified_request)
     jsonified_request.update(unset_fields)
 
     # verify required fields with default values are now present
+    assert "documentId" in jsonified_request
+    assert jsonified_request["documentId"] == request_init["document_id"]
 
     jsonified_request["parent"] = "parent_value"
+    jsonified_request["documentId"] = "document_id_value"
 
     unset_fields = transport_class(
         credentials=ga_credentials.AnonymousCredentials()
-    ).list_documents._get_unset_required_fields(jsonified_request)
+    ).create_document._get_unset_required_fields(jsonified_request)
     # Check that path parameters and body parameters are not mixing in.
-    assert not set(unset_fields) - set(
-        (
-            "page_size",
-            "page_token",
-        )
-    )
+    assert not set(unset_fields) - set(("document_id",))
     jsonified_request.update(unset_fields)
 
     # verify required fields with non-default values are left alone
     assert "parent" in jsonified_request
     assert jsonified_request["parent"] == "parent_value"
+    assert "documentId" in jsonified_request
+    assert jsonified_request["documentId"] == "document_id_value"
 
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
@@ -4741,7 +5623,7 @@ def test_list_documents_rest_required_fields(
     request = request_type(**request_init)
 
     # Designate an appropriate value for the returned response.
-    return_value = document_service.ListDocumentsResponse()
+    return_value = gcd_document.Document()
     # Mock the http request call within the method and fake a response.
     with mock.patch.object(Session, "request") as req:
         # We need to mock transcode() because providing default values
@@ -4753,47 +5635,55 @@ def test_list_documents_rest_required_fields(
             pb_request = request_type.pb(request)
             transcode_result = {
                 "uri": "v1/sample_method",
-                "method": "get",
+                "method": "post",
                 "query_params": pb_request,
             }
+            transcode_result["body"] = pb_request
             transcode.return_value = transcode_result
 
             response_value = Response()
             response_value.status_code = 200
 
             # Convert return value to protobuf type
-            return_value = document_service.ListDocumentsResponse.pb(return_value)
+            return_value = gcd_document.Document.pb(return_value)
             json_return_value = json_format.MessageToJson(return_value)
 
             response_value._content = json_return_value.encode("UTF-8")
             req.return_value = response_value
 
-            response = client.list_documents(request)
+            response = client.create_document(request)
 
-            expected_params = [("$alt", "json;enum-encoding=int")]
+            expected_params = [
+                (
+                    "documentId",
+                    "",
+                ),
+                ("$alt", "json;enum-encoding=int"),
+            ]
             actual_params = req.call_args.kwargs["params"]
             assert expected_params == actual_params
 
 
-def test_list_documents_rest_unset_required_fields():
+def test_create_document_rest_unset_required_fields():
     transport = transports.DocumentServiceRestTransport(
         credentials=ga_credentials.AnonymousCredentials
     )
 
-    unset_fields = transport.list_documents._get_unset_required_fields({})
+    unset_fields = transport.create_document._get_unset_required_fields({})
     assert set(unset_fields) == (
-        set(
+        set(("documentId",))
+        & set(
             (
-                "pageSize",
-                "pageToken",
+                "parent",
+                "document",
+                "documentId",
             )
         )
-        & set(("parent",))
     )
 
 
 @pytest.mark.parametrize("null_interceptor", [True, False])
-def test_list_documents_rest_interceptors(null_interceptor):
+def test_create_document_rest_interceptors(null_interceptor):
     transport = transports.DocumentServiceRestTransport(
         credentials=ga_credentials.AnonymousCredentials(),
         interceptor=None
@@ -4806,14 +5696,14 @@ def test_list_documents_rest_interceptors(null_interceptor):
     ) as req, mock.patch.object(
         path_template, "transcode"
     ) as transcode, mock.patch.object(
-        transports.DocumentServiceRestInterceptor, "post_list_documents"
+        transports.DocumentServiceRestInterceptor, "post_create_document"
     ) as post, mock.patch.object(
-        transports.DocumentServiceRestInterceptor, "pre_list_documents"
+        transports.DocumentServiceRestInterceptor, "pre_create_document"
     ) as pre:
         pre.assert_not_called()
         post.assert_not_called()
-        pb_message = document_service.ListDocumentsRequest.pb(
-            document_service.ListDocumentsRequest()
+        pb_message = document_service.CreateDocumentRequest.pb(
+            document_service.CreateDocumentRequest()
         )
         transcode.return_value = {
             "method": "post",
@@ -4825,19 +5715,19 @@ def test_list_documents_rest_interceptors(null_interceptor):
         req.return_value = Response()
         req.return_value.status_code = 200
         req.return_value.request = PreparedRequest()
-        req.return_value._content = document_service.ListDocumentsResponse.to_json(
-            document_service.ListDocumentsResponse()
+        req.return_value._content = gcd_document.Document.to_json(
+            gcd_document.Document()
         )
 
-        request = document_service.ListDocumentsRequest()
+        request = document_service.CreateDocumentRequest()
         metadata = [
             ("key", "val"),
             ("cephalopod", "squid"),
         ]
         pre.return_value = request, metadata
-        post.return_value = document_service.ListDocumentsResponse()
+        post.return_value = gcd_document.Document()
 
-        client.list_documents(
+        client.create_document(
             request,
             metadata=[
                 ("key", "val"),
@@ -4849,8 +5739,8 @@ def test_list_documents_rest_interceptors(null_interceptor):
         post.assert_called_once()
 
 
-def test_list_documents_rest_bad_request(
-    transport: str = "rest", request_type=document_service.ListDocumentsRequest
+def test_create_document_rest_bad_request(
+    transport: str = "rest", request_type=document_service.CreateDocumentRequest
 ):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
@@ -4872,10 +5762,10 @@ def test_list_documents_rest_bad_request(
         response_value.status_code = 400
         response_value.request = Request()
         req.return_value = response_value
-        client.list_documents(request)
+        client.create_document(request)
 
 
-def test_list_documents_rest_flattened():
+def test_create_document_rest_flattened():
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
         transport="rest",
@@ -4884,7 +5774,7 @@ def test_list_documents_rest_flattened():
     # Mock the http request call within the method and fake a response.
     with mock.patch.object(type(client.transport._session), "request") as req:
         # Designate an appropriate value for the returned response.
-        return_value = document_service.ListDocumentsResponse()
+        return_value = gcd_document.Document()
 
         # get arguments that satisfy an http rule for this method
         sample_request = {
@@ -4894,6 +5784,16 @@ def test_list_documents_rest_flattened():
         # get truthy value for each flattened field
         mock_args = dict(
             parent="parent_value",
+            document=gcd_document.Document(
+                struct_data=struct_pb2.Struct(
+                    fields={
+                        "key_value": struct_pb2.Value(
+                            null_value=struct_pb2.NullValue.NULL_VALUE
+                        )
+                    }
+                )
+            ),
+            document_id="document_id_value",
         )
         mock_args.update(sample_request)
 
@@ -4901,12 +5801,12 @@ def test_list_documents_rest_flattened():
         response_value = Response()
         response_value.status_code = 200
         # Convert return value to protobuf type
-        return_value = document_service.ListDocumentsResponse.pb(return_value)
+        return_value = gcd_document.Document.pb(return_value)
         json_return_value = json_format.MessageToJson(return_value)
         response_value._content = json_return_value.encode("UTF-8")
         req.return_value = response_value
 
-        client.list_documents(**mock_args)
+        client.create_document(**mock_args)
 
         # Establish that the underlying call was made with the expected
         # request object values.
@@ -4919,7 +5819,7 @@ def test_list_documents_rest_flattened():
         )
 
 
-def test_list_documents_rest_flattened_error(transport: str = "rest"):
+def test_create_document_rest_flattened_error(transport: str = "rest"):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
         transport=transport,
@@ -4928,85 +5828,36 @@ def test_list_documents_rest_flattened_error(transport: str = "rest"):
     # Attempting to call a method with both a request object and flattened
     # fields is an error.
     with pytest.raises(ValueError):
-        client.list_documents(
-            document_service.ListDocumentsRequest(),
+        client.create_document(
+            document_service.CreateDocumentRequest(),
             parent="parent_value",
+            document=gcd_document.Document(
+                struct_data=struct_pb2.Struct(
+                    fields={
+                        "key_value": struct_pb2.Value(
+                            null_value=struct_pb2.NullValue.NULL_VALUE
+                        )
+                    }
+                )
+            ),
+            document_id="document_id_value",
         )
 
 
-def test_list_documents_rest_pager(transport: str = "rest"):
+def test_create_document_rest_error():
     client = DocumentServiceClient(
-        credentials=ga_credentials.AnonymousCredentials(),
-        transport=transport,
+        credentials=ga_credentials.AnonymousCredentials(), transport="rest"
     )
 
-    # Mock the http request call within the method and fake a response.
-    with mock.patch.object(Session, "request") as req:
-        # TODO(kbandes): remove this mock unless there's a good reason for it.
-        # with mock.patch.object(path_template, 'transcode') as transcode:
-        # Set the response as a series of pages
-        response = (
-            document_service.ListDocumentsResponse(
-                documents=[
-                    document.Document(),
-                    document.Document(),
-                    document.Document(),
-                ],
-                next_page_token="abc",
-            ),
-            document_service.ListDocumentsResponse(
-                documents=[],
-                next_page_token="def",
-            ),
-            document_service.ListDocumentsResponse(
-                documents=[
-                    document.Document(),
-                ],
-                next_page_token="ghi",
-            ),
-            document_service.ListDocumentsResponse(
-                documents=[
-                    document.Document(),
-                    document.Document(),
-                ],
-            ),
-        )
-        # Two responses for two calls
-        response = response + response
-
-        # Wrap the values into proper Response objs
-        response = tuple(
-            document_service.ListDocumentsResponse.to_json(x) for x in response
-        )
-        return_values = tuple(Response() for i in response)
-        for return_val, response_val in zip(return_values, response):
-            return_val._content = response_val.encode("UTF-8")
-            return_val.status_code = 200
-        req.side_effect = return_values
-
-        sample_request = {
-            "parent": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4"
-        }
-
-        pager = client.list_documents(request=sample_request)
-
-        results = list(pager)
-        assert len(results) == 6
-        assert all(isinstance(i, document.Document) for i in results)
-
-        pages = list(client.list_documents(request=sample_request).pages)
-        for page_, token in zip(pages, ["abc", "def", "ghi", ""]):
-            assert page_.raw_page.next_page_token == token
-
 
 @pytest.mark.parametrize(
     "request_type",
     [
-        document_service.CreateDocumentRequest,
+        document_service.UpdateDocumentRequest,
         dict,
     ],
 )
-def test_create_document_rest(request_type):
+def test_update_document_rest(request_type):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
         transport="rest",
@@ -5014,12 +5865,14 @@ def test_create_document_rest(request_type):
 
     # send a request that will satisfy transcoding
     request_init = {
-        "parent": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4"
+        "document": {
+            "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
+        }
     }
     request_init["document"] = {
         "struct_data": {"fields": {}},
         "json_data": "json_data_value",
-        "name": "name_value",
+        "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5",
         "id": "id_value",
         "schema_id": "schema_id_value",
         "content": {
@@ -5040,13 +5893,28 @@ def test_create_document_rest(request_type):
             ]
         },
         "index_time": {"seconds": 751, "nanos": 543},
+        "index_status": {
+            "index_time": {},
+            "error_samples": [
+                {
+                    "code": 411,
+                    "message": "message_value",
+                    "details": [
+                        {
+                            "type_url": "type.googleapis.com/google.protobuf.Duration",
+                            "value": b"\x08\x0c\x10\xdb\x07",
+                        }
+                    ],
+                }
+            ],
+        },
     }
     # The version of a generated dependency at test runtime may differ from the version used during generation.
     # Delete any fields which are not present in the current runtime dependency
     # See https://github.com/googleapis/gapic-generator-python/issues/1748
 
     # Determine if the message type is proto-plus or protobuf
-    test_field = document_service.CreateDocumentRequest.meta.fields["document"]
+    test_field = document_service.UpdateDocumentRequest.meta.fields["document"]
 
     def get_message_fields(field):
         # Given a field which is a message (composite type), return a list with
@@ -5130,7 +5998,7 @@ def get_message_fields(field):
 
         response_value._content = json_return_value.encode("UTF-8")
         req.return_value = response_value
-        response = client.create_document(request)
+        response = client.update_document(request)
 
     # Establish that the response is the type that we expect.
     assert isinstance(response, gcd_document.Document)
@@ -5140,7 +6008,7 @@ def get_message_fields(field):
     assert response.parent_document_id == "parent_document_id_value"
 
 
-def test_create_document_rest_use_cached_wrapped_rpc():
+def test_update_document_rest_use_cached_wrapped_rpc():
     # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
     # instead of constructing them on each call
     with mock.patch("google.api_core.gapic_v1.method.wrap_method") as wrapper_fn:
@@ -5154,36 +6022,34 @@ def test_create_document_rest_use_cached_wrapped_rpc():
         wrapper_fn.reset_mock()
 
         # Ensure method has been cached
-        assert client._transport.create_document in client._transport._wrapped_methods
+        assert client._transport.update_document in client._transport._wrapped_methods
 
         # Replace cached wrapped function with mock
         mock_rpc = mock.Mock()
         mock_rpc.return_value.name = (
             "foo"  # operation_request.operation in compute client(s) expect a string.
         )
-        client._transport._wrapped_methods[client._transport.create_document] = mock_rpc
+        client._transport._wrapped_methods[client._transport.update_document] = mock_rpc
 
         request = {}
-        client.create_document(request)
+        client.update_document(request)
 
         # Establish that the underlying gRPC stub method was called.
         assert mock_rpc.call_count == 1
 
-        client.create_document(request)
+        client.update_document(request)
 
         # Establish that a new wrapper was not created for this call
         assert wrapper_fn.call_count == 0
         assert mock_rpc.call_count == 2
 
 
-def test_create_document_rest_required_fields(
-    request_type=document_service.CreateDocumentRequest,
+def test_update_document_rest_required_fields(
+    request_type=document_service.UpdateDocumentRequest,
 ):
     transport_class = transports.DocumentServiceRestTransport
 
     request_init = {}
-    request_init["parent"] = ""
-    request_init["document_id"] = ""
     request = request_type(**request_init)
     pb_request = request_type.pb(request)
     jsonified_request = json.loads(
@@ -5191,32 +6057,27 @@ def test_create_document_rest_required_fields(
     )
 
     # verify fields with default values are dropped
-    assert "documentId" not in jsonified_request
 
     unset_fields = transport_class(
         credentials=ga_credentials.AnonymousCredentials()
-    ).create_document._get_unset_required_fields(jsonified_request)
+    ).update_document._get_unset_required_fields(jsonified_request)
     jsonified_request.update(unset_fields)
 
     # verify required fields with default values are now present
-    assert "documentId" in jsonified_request
-    assert jsonified_request["documentId"] == request_init["document_id"]
-
-    jsonified_request["parent"] = "parent_value"
-    jsonified_request["documentId"] = "document_id_value"
 
     unset_fields = transport_class(
         credentials=ga_credentials.AnonymousCredentials()
-    ).create_document._get_unset_required_fields(jsonified_request)
+    ).update_document._get_unset_required_fields(jsonified_request)
     # Check that path parameters and body parameters are not mixing in.
-    assert not set(unset_fields) - set(("document_id",))
+    assert not set(unset_fields) - set(
+        (
+            "allow_missing",
+            "update_mask",
+        )
+    )
     jsonified_request.update(unset_fields)
 
     # verify required fields with non-default values are left alone
-    assert "parent" in jsonified_request
-    assert jsonified_request["parent"] == "parent_value"
-    assert "documentId" in jsonified_request
-    assert jsonified_request["documentId"] == "document_id_value"
 
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
@@ -5237,7 +6098,7 @@ def test_create_document_rest_required_fields(
             pb_request = request_type.pb(request)
             transcode_result = {
                 "uri": "v1/sample_method",
-                "method": "post",
+                "method": "patch",
                 "query_params": pb_request,
             }
             transcode_result["body"] = pb_request
@@ -5253,39 +6114,32 @@ def test_create_document_rest_required_fields(
             response_value._content = json_return_value.encode("UTF-8")
             req.return_value = response_value
 
-            response = client.create_document(request)
+            response = client.update_document(request)
 
-            expected_params = [
-                (
-                    "documentId",
-                    "",
-                ),
-                ("$alt", "json;enum-encoding=int"),
-            ]
+            expected_params = [("$alt", "json;enum-encoding=int")]
             actual_params = req.call_args.kwargs["params"]
             assert expected_params == actual_params
 
 
-def test_create_document_rest_unset_required_fields():
+def test_update_document_rest_unset_required_fields():
     transport = transports.DocumentServiceRestTransport(
         credentials=ga_credentials.AnonymousCredentials
     )
 
-    unset_fields = transport.create_document._get_unset_required_fields({})
+    unset_fields = transport.update_document._get_unset_required_fields({})
     assert set(unset_fields) == (
-        set(("documentId",))
-        & set(
+        set(
             (
-                "parent",
-                "document",
-                "documentId",
+                "allowMissing",
+                "updateMask",
             )
         )
+        & set(("document",))
     )
 
 
 @pytest.mark.parametrize("null_interceptor", [True, False])
-def test_create_document_rest_interceptors(null_interceptor):
+def test_update_document_rest_interceptors(null_interceptor):
     transport = transports.DocumentServiceRestTransport(
         credentials=ga_credentials.AnonymousCredentials(),
         interceptor=None
@@ -5298,14 +6152,14 @@ def test_create_document_rest_interceptors(null_interceptor):
     ) as req, mock.patch.object(
         path_template, "transcode"
     ) as transcode, mock.patch.object(
-        transports.DocumentServiceRestInterceptor, "post_create_document"
+        transports.DocumentServiceRestInterceptor, "post_update_document"
     ) as post, mock.patch.object(
-        transports.DocumentServiceRestInterceptor, "pre_create_document"
+        transports.DocumentServiceRestInterceptor, "pre_update_document"
     ) as pre:
         pre.assert_not_called()
         post.assert_not_called()
-        pb_message = document_service.CreateDocumentRequest.pb(
-            document_service.CreateDocumentRequest()
+        pb_message = document_service.UpdateDocumentRequest.pb(
+            document_service.UpdateDocumentRequest()
         )
         transcode.return_value = {
             "method": "post",
@@ -5321,7 +6175,7 @@ def test_create_document_rest_interceptors(null_interceptor):
             gcd_document.Document()
         )
 
-        request = document_service.CreateDocumentRequest()
+        request = document_service.UpdateDocumentRequest()
         metadata = [
             ("key", "val"),
             ("cephalopod", "squid"),
@@ -5329,7 +6183,7 @@ def test_create_document_rest_interceptors(null_interceptor):
         pre.return_value = request, metadata
         post.return_value = gcd_document.Document()
 
-        client.create_document(
+        client.update_document(
             request,
             metadata=[
                 ("key", "val"),
@@ -5341,8 +6195,8 @@ def test_create_document_rest_interceptors(null_interceptor):
         post.assert_called_once()
 
 
-def test_create_document_rest_bad_request(
-    transport: str = "rest", request_type=document_service.CreateDocumentRequest
+def test_update_document_rest_bad_request(
+    transport: str = "rest", request_type=document_service.UpdateDocumentRequest
 ):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
@@ -5351,7 +6205,9 @@ def test_create_document_rest_bad_request(
 
     # send a request that will satisfy transcoding
     request_init = {
-        "parent": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4"
+        "document": {
+            "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
+        }
     }
     request = request_type(**request_init)
 
@@ -5364,10 +6220,10 @@ def test_create_document_rest_bad_request(
         response_value.status_code = 400
         response_value.request = Request()
         req.return_value = response_value
-        client.create_document(request)
+        client.update_document(request)
 
 
-def test_create_document_rest_flattened():
+def test_update_document_rest_flattened():
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
         transport="rest",
@@ -5380,12 +6236,13 @@ def test_create_document_rest_flattened():
 
         # get arguments that satisfy an http rule for this method
         sample_request = {
-            "parent": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4"
+            "document": {
+                "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
+            }
         }
 
         # get truthy value for each flattened field
         mock_args = dict(
-            parent="parent_value",
             document=gcd_document.Document(
                 struct_data=struct_pb2.Struct(
                     fields={
@@ -5395,7 +6252,7 @@ def test_create_document_rest_flattened():
                     }
                 )
             ),
-            document_id="document_id_value",
+            update_mask=field_mask_pb2.FieldMask(paths=["paths_value"]),
         )
         mock_args.update(sample_request)
 
@@ -5408,20 +6265,20 @@ def test_create_document_rest_flattened():
         response_value._content = json_return_value.encode("UTF-8")
         req.return_value = response_value
 
-        client.create_document(**mock_args)
+        client.update_document(**mock_args)
 
         # Establish that the underlying call was made with the expected
         # request object values.
         assert len(req.mock_calls) == 1
         _, args, _ = req.mock_calls[0]
         assert path_template.validate(
-            "%s/v1alpha/{parent=projects/*/locations/*/dataStores/*/branches/*}/documents"
+            "%s/v1alpha/{document.name=projects/*/locations/*/dataStores/*/branches/*/documents/*}"
             % client.transport._host,
             args[1],
         )
 
 
-def test_create_document_rest_flattened_error(transport: str = "rest"):
+def test_update_document_rest_flattened_error(transport: str = "rest"):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
         transport=transport,
@@ -5430,9 +6287,8 @@ def test_create_document_rest_flattened_error(transport: str = "rest"):
     # Attempting to call a method with both a request object and flattened
     # fields is an error.
     with pytest.raises(ValueError):
-        client.create_document(
-            document_service.CreateDocumentRequest(),
-            parent="parent_value",
+        client.update_document(
+            document_service.UpdateDocumentRequest(),
             document=gcd_document.Document(
                 struct_data=struct_pb2.Struct(
                     fields={
@@ -5442,11 +6298,11 @@ def test_create_document_rest_flattened_error(transport: str = "rest"):
                     }
                 )
             ),
-            document_id="document_id_value",
+            update_mask=field_mask_pb2.FieldMask(paths=["paths_value"]),
         )
 
 
-def test_create_document_rest_error():
+def test_update_document_rest_error():
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(), transport="rest"
     )
@@ -5455,11 +6311,11 @@ def test_create_document_rest_error():
 @pytest.mark.parametrize(
     "request_type",
     [
-        document_service.UpdateDocumentRequest,
+        document_service.DeleteDocumentRequest,
         dict,
     ],
 )
-def test_update_document_rest(request_type):
+def test_delete_document_rest(request_type):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
         transport="rest",
@@ -5467,135 +6323,29 @@ def test_update_document_rest(request_type):
 
     # send a request that will satisfy transcoding
     request_init = {
-        "document": {
-            "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
-        }
-    }
-    request_init["document"] = {
-        "struct_data": {"fields": {}},
-        "json_data": "json_data_value",
-        "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5",
-        "id": "id_value",
-        "schema_id": "schema_id_value",
-        "content": {
-            "raw_bytes": b"raw_bytes_blob",
-            "uri": "uri_value",
-            "mime_type": "mime_type_value",
-        },
-        "parent_document_id": "parent_document_id_value",
-        "derived_struct_data": {},
-        "acl_info": {
-            "readers": [
-                {
-                    "principals": [
-                        {"user_id": "user_id_value", "group_id": "group_id_value"}
-                    ],
-                    "idp_wide": True,
-                }
-            ]
-        },
-        "index_time": {"seconds": 751, "nanos": 543},
+        "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
     }
-    # The version of a generated dependency at test runtime may differ from the version used during generation.
-    # Delete any fields which are not present in the current runtime dependency
-    # See https://github.com/googleapis/gapic-generator-python/issues/1748
-
-    # Determine if the message type is proto-plus or protobuf
-    test_field = document_service.UpdateDocumentRequest.meta.fields["document"]
-
-    def get_message_fields(field):
-        # Given a field which is a message (composite type), return a list with
-        # all the fields of the message.
-        # If the field is not a composite type, return an empty list.
-        message_fields = []
-
-        if hasattr(field, "message") and field.message:
-            is_field_type_proto_plus_type = not hasattr(field.message, "DESCRIPTOR")
-
-            if is_field_type_proto_plus_type:
-                message_fields = field.message.meta.fields.values()
-            # Add `# pragma: NO COVER` because there may not be any `*_pb2` field types
-            else:  # pragma: NO COVER
-                message_fields = field.message.DESCRIPTOR.fields
-        return message_fields
-
-    runtime_nested_fields = [
-        (field.name, nested_field.name)
-        for field in get_message_fields(test_field)
-        for nested_field in get_message_fields(field)
-    ]
-
-    subfields_not_in_runtime = []
-
-    # For each item in the sample request, create a list of sub fields which are not present at runtime
-    # Add `# pragma: NO COVER` because this test code will not run if all subfields are present at runtime
-    for field, value in request_init["document"].items():  # pragma: NO COVER
-        result = None
-        is_repeated = False
-        # For repeated fields
-        if isinstance(value, list) and len(value):
-            is_repeated = True
-            result = value[0]
-        # For fields where the type is another message
-        if isinstance(value, dict):
-            result = value
-
-        if result and hasattr(result, "keys"):
-            for subfield in result.keys():
-                if (field, subfield) not in runtime_nested_fields:
-                    subfields_not_in_runtime.append(
-                        {
-                            "field": field,
-                            "subfield": subfield,
-                            "is_repeated": is_repeated,
-                        }
-                    )
-
-    # Remove fields from the sample request which are not present in the runtime version of the dependency
-    # Add `# pragma: NO COVER` because this test code will not run if all subfields are present at runtime
-    for subfield_to_delete in subfields_not_in_runtime:  # pragma: NO COVER
-        field = subfield_to_delete.get("field")
-        field_repeated = subfield_to_delete.get("is_repeated")
-        subfield = subfield_to_delete.get("subfield")
-        if subfield:
-            if field_repeated:
-                for i in range(0, len(request_init["document"][field])):
-                    del request_init["document"][field][i][subfield]
-            else:
-                del request_init["document"][field][subfield]
     request = request_type(**request_init)
 
     # Mock the http request call within the method and fake a response.
     with mock.patch.object(type(client.transport._session), "request") as req:
         # Designate an appropriate value for the returned response.
-        return_value = gcd_document.Document(
-            name="name_value",
-            id="id_value",
-            schema_id="schema_id_value",
-            parent_document_id="parent_document_id_value",
-            json_data="json_data_value",
-        )
+        return_value = None
 
         # Wrap the value into a proper Response obj
         response_value = Response()
         response_value.status_code = 200
-        # Convert return value to protobuf type
-        return_value = gcd_document.Document.pb(return_value)
-        json_return_value = json_format.MessageToJson(return_value)
+        json_return_value = ""
 
         response_value._content = json_return_value.encode("UTF-8")
         req.return_value = response_value
-        response = client.update_document(request)
+        response = client.delete_document(request)
 
     # Establish that the response is the type that we expect.
-    assert isinstance(response, gcd_document.Document)
-    assert response.name == "name_value"
-    assert response.id == "id_value"
-    assert response.schema_id == "schema_id_value"
-    assert response.parent_document_id == "parent_document_id_value"
+    assert response is None
 
 
-def test_update_document_rest_use_cached_wrapped_rpc():
+def test_delete_document_rest_use_cached_wrapped_rpc():
     # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
     # instead of constructing them on each call
     with mock.patch("google.api_core.gapic_v1.method.wrap_method") as wrapper_fn:
@@ -5609,34 +6359,35 @@ def test_update_document_rest_use_cached_wrapped_rpc():
         wrapper_fn.reset_mock()
 
         # Ensure method has been cached
-        assert client._transport.update_document in client._transport._wrapped_methods
+        assert client._transport.delete_document in client._transport._wrapped_methods
 
         # Replace cached wrapped function with mock
         mock_rpc = mock.Mock()
         mock_rpc.return_value.name = (
             "foo"  # operation_request.operation in compute client(s) expect a string.
         )
-        client._transport._wrapped_methods[client._transport.update_document] = mock_rpc
+        client._transport._wrapped_methods[client._transport.delete_document] = mock_rpc
 
         request = {}
-        client.update_document(request)
+        client.delete_document(request)
 
         # Establish that the underlying gRPC stub method was called.
         assert mock_rpc.call_count == 1
 
-        client.update_document(request)
+        client.delete_document(request)
 
         # Establish that a new wrapper was not created for this call
         assert wrapper_fn.call_count == 0
         assert mock_rpc.call_count == 2
 
 
-def test_update_document_rest_required_fields(
-    request_type=document_service.UpdateDocumentRequest,
+def test_delete_document_rest_required_fields(
+    request_type=document_service.DeleteDocumentRequest,
 ):
     transport_class = transports.DocumentServiceRestTransport
 
     request_init = {}
+    request_init["name"] = ""
     request = request_type(**request_init)
     pb_request = request_type.pb(request)
     jsonified_request = json.loads(
@@ -5647,24 +6398,21 @@ def test_update_document_rest_required_fields(
 
     unset_fields = transport_class(
         credentials=ga_credentials.AnonymousCredentials()
-    ).update_document._get_unset_required_fields(jsonified_request)
+    ).delete_document._get_unset_required_fields(jsonified_request)
     jsonified_request.update(unset_fields)
 
     # verify required fields with default values are now present
 
+    jsonified_request["name"] = "name_value"
+
     unset_fields = transport_class(
         credentials=ga_credentials.AnonymousCredentials()
-    ).update_document._get_unset_required_fields(jsonified_request)
-    # Check that path parameters and body parameters are not mixing in.
-    assert not set(unset_fields) - set(
-        (
-            "allow_missing",
-            "update_mask",
-        )
-    )
+    ).delete_document._get_unset_required_fields(jsonified_request)
     jsonified_request.update(unset_fields)
 
     # verify required fields with non-default values are left alone
+    assert "name" in jsonified_request
+    assert jsonified_request["name"] == "name_value"
 
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
@@ -5673,7 +6421,7 @@ def test_update_document_rest_required_fields(
     request = request_type(**request_init)
 
     # Designate an appropriate value for the returned response.
-    return_value = gcd_document.Document()
+    return_value = None
     # Mock the http request call within the method and fake a response.
     with mock.patch.object(Session, "request") as req:
         # We need to mock transcode() because providing default values
@@ -5685,48 +6433,36 @@ def test_update_document_rest_required_fields(
             pb_request = request_type.pb(request)
             transcode_result = {
                 "uri": "v1/sample_method",
-                "method": "patch",
+                "method": "delete",
                 "query_params": pb_request,
             }
-            transcode_result["body"] = pb_request
             transcode.return_value = transcode_result
 
             response_value = Response()
             response_value.status_code = 200
-
-            # Convert return value to protobuf type
-            return_value = gcd_document.Document.pb(return_value)
-            json_return_value = json_format.MessageToJson(return_value)
+            json_return_value = ""
 
             response_value._content = json_return_value.encode("UTF-8")
             req.return_value = response_value
 
-            response = client.update_document(request)
+            response = client.delete_document(request)
 
             expected_params = [("$alt", "json;enum-encoding=int")]
             actual_params = req.call_args.kwargs["params"]
             assert expected_params == actual_params
 
 
-def test_update_document_rest_unset_required_fields():
+def test_delete_document_rest_unset_required_fields():
     transport = transports.DocumentServiceRestTransport(
         credentials=ga_credentials.AnonymousCredentials
     )
 
-    unset_fields = transport.update_document._get_unset_required_fields({})
-    assert set(unset_fields) == (
-        set(
-            (
-                "allowMissing",
-                "updateMask",
-            )
-        )
-        & set(("document",))
-    )
+    unset_fields = transport.delete_document._get_unset_required_fields({})
+    assert set(unset_fields) == (set(()) & set(("name",)))
 
 
 @pytest.mark.parametrize("null_interceptor", [True, False])
-def test_update_document_rest_interceptors(null_interceptor):
+def test_delete_document_rest_interceptors(null_interceptor):
     transport = transports.DocumentServiceRestTransport(
         credentials=ga_credentials.AnonymousCredentials(),
         interceptor=None
@@ -5739,14 +6475,11 @@ def test_update_document_rest_interceptors(null_interceptor):
     ) as req, mock.patch.object(
         path_template, "transcode"
     ) as transcode, mock.patch.object(
-        transports.DocumentServiceRestInterceptor, "post_update_document"
-    ) as post, mock.patch.object(
-        transports.DocumentServiceRestInterceptor, "pre_update_document"
+        transports.DocumentServiceRestInterceptor, "pre_delete_document"
     ) as pre:
         pre.assert_not_called()
-        post.assert_not_called()
-        pb_message = document_service.UpdateDocumentRequest.pb(
-            document_service.UpdateDocumentRequest()
+        pb_message = document_service.DeleteDocumentRequest.pb(
+            document_service.DeleteDocumentRequest()
         )
         transcode.return_value = {
             "method": "post",
@@ -5758,19 +6491,15 @@ def test_update_document_rest_interceptors(null_interceptor):
         req.return_value = Response()
         req.return_value.status_code = 200
         req.return_value.request = PreparedRequest()
-        req.return_value._content = gcd_document.Document.to_json(
-            gcd_document.Document()
-        )
 
-        request = document_service.UpdateDocumentRequest()
+        request = document_service.DeleteDocumentRequest()
         metadata = [
             ("key", "val"),
             ("cephalopod", "squid"),
         ]
         pre.return_value = request, metadata
-        post.return_value = gcd_document.Document()
 
-        client.update_document(
+        client.delete_document(
             request,
             metadata=[
                 ("key", "val"),
@@ -5779,11 +6508,10 @@ def test_update_document_rest_interceptors(null_interceptor):
         )
 
         pre.assert_called_once()
-        post.assert_called_once()
 
 
-def test_update_document_rest_bad_request(
-    transport: str = "rest", request_type=document_service.UpdateDocumentRequest
+def test_delete_document_rest_bad_request(
+    transport: str = "rest", request_type=document_service.DeleteDocumentRequest
 ):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
@@ -5792,9 +6520,7 @@ def test_update_document_rest_bad_request(
 
     # send a request that will satisfy transcoding
     request_init = {
-        "document": {
-            "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
-        }
+        "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
     }
     request = request_type(**request_init)
 
@@ -5807,10 +6533,10 @@ def test_update_document_rest_bad_request(
         response_value.status_code = 400
         response_value.request = Request()
         req.return_value = response_value
-        client.update_document(request)
+        client.delete_document(request)
 
 
-def test_update_document_rest_flattened():
+def test_delete_document_rest_flattened():
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
         transport="rest",
@@ -5819,53 +6545,40 @@ def test_update_document_rest_flattened():
     # Mock the http request call within the method and fake a response.
     with mock.patch.object(type(client.transport._session), "request") as req:
         # Designate an appropriate value for the returned response.
-        return_value = gcd_document.Document()
+        return_value = None
 
         # get arguments that satisfy an http rule for this method
         sample_request = {
-            "document": {
-                "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
-            }
+            "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
         }
 
-        # get truthy value for each flattened field
-        mock_args = dict(
-            document=gcd_document.Document(
-                struct_data=struct_pb2.Struct(
-                    fields={
-                        "key_value": struct_pb2.Value(
-                            null_value=struct_pb2.NullValue.NULL_VALUE
-                        )
-                    }
-                )
-            ),
-            update_mask=field_mask_pb2.FieldMask(paths=["paths_value"]),
+        # get truthy value for each flattened field
+        mock_args = dict(
+            name="name_value",
         )
         mock_args.update(sample_request)
 
         # Wrap the value into a proper Response obj
         response_value = Response()
         response_value.status_code = 200
-        # Convert return value to protobuf type
-        return_value = gcd_document.Document.pb(return_value)
-        json_return_value = json_format.MessageToJson(return_value)
+        json_return_value = ""
         response_value._content = json_return_value.encode("UTF-8")
         req.return_value = response_value
 
-        client.update_document(**mock_args)
+        client.delete_document(**mock_args)
 
         # Establish that the underlying call was made with the expected
         # request object values.
         assert len(req.mock_calls) == 1
         _, args, _ = req.mock_calls[0]
         assert path_template.validate(
-            "%s/v1alpha/{document.name=projects/*/locations/*/dataStores/*/branches/*/documents/*}"
+            "%s/v1alpha/{name=projects/*/locations/*/dataStores/*/branches/*/documents/*}"
             % client.transport._host,
             args[1],
         )
 
 
-def test_update_document_rest_flattened_error(transport: str = "rest"):
+def test_delete_document_rest_flattened_error(transport: str = "rest"):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
         transport=transport,
@@ -5874,22 +6587,13 @@ def test_update_document_rest_flattened_error(transport: str = "rest"):
     # Attempting to call a method with both a request object and flattened
     # fields is an error.
     with pytest.raises(ValueError):
-        client.update_document(
-            document_service.UpdateDocumentRequest(),
-            document=gcd_document.Document(
-                struct_data=struct_pb2.Struct(
-                    fields={
-                        "key_value": struct_pb2.Value(
-                            null_value=struct_pb2.NullValue.NULL_VALUE
-                        )
-                    }
-                )
-            ),
-            update_mask=field_mask_pb2.FieldMask(paths=["paths_value"]),
+        client.delete_document(
+            document_service.DeleteDocumentRequest(),
+            name="name_value",
         )
 
 
-def test_update_document_rest_error():
+def test_delete_document_rest_error():
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(), transport="rest"
     )
@@ -5898,11 +6602,11 @@ def test_update_document_rest_error():
 @pytest.mark.parametrize(
     "request_type",
     [
-        document_service.DeleteDocumentRequest,
+        import_config.ImportDocumentsRequest,
         dict,
     ],
 )
-def test_delete_document_rest(request_type):
+def test_import_documents_rest(request_type):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
         transport="rest",
@@ -5910,29 +6614,29 @@ def test_delete_document_rest(request_type):
 
     # send a request that will satisfy transcoding
     request_init = {
-        "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
+        "parent": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4"
     }
     request = request_type(**request_init)
 
     # Mock the http request call within the method and fake a response.
     with mock.patch.object(type(client.transport._session), "request") as req:
         # Designate an appropriate value for the returned response.
-        return_value = None
+        return_value = operations_pb2.Operation(name="operations/spam")
 
         # Wrap the value into a proper Response obj
         response_value = Response()
         response_value.status_code = 200
-        json_return_value = ""
+        json_return_value = json_format.MessageToJson(return_value)
 
         response_value._content = json_return_value.encode("UTF-8")
         req.return_value = response_value
-        response = client.delete_document(request)
+        response = client.import_documents(request)
 
     # Establish that the response is the type that we expect.
-    assert response is None
+    assert response.operation.name == "operations/spam"
 
 
-def test_delete_document_rest_use_cached_wrapped_rpc():
+def test_import_documents_rest_use_cached_wrapped_rpc():
     # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
     # instead of constructing them on each call
     with mock.patch("google.api_core.gapic_v1.method.wrap_method") as wrapper_fn:
@@ -5946,35 +6650,41 @@ def test_delete_document_rest_use_cached_wrapped_rpc():
         wrapper_fn.reset_mock()
 
         # Ensure method has been cached
-        assert client._transport.delete_document in client._transport._wrapped_methods
+        assert client._transport.import_documents in client._transport._wrapped_methods
 
         # Replace cached wrapped function with mock
         mock_rpc = mock.Mock()
         mock_rpc.return_value.name = (
             "foo"  # operation_request.operation in compute client(s) expect a string.
         )
-        client._transport._wrapped_methods[client._transport.delete_document] = mock_rpc
+        client._transport._wrapped_methods[
+            client._transport.import_documents
+        ] = mock_rpc
 
         request = {}
-        client.delete_document(request)
+        client.import_documents(request)
 
         # Establish that the underlying gRPC stub method was called.
         assert mock_rpc.call_count == 1
 
-        client.delete_document(request)
+        # Operation methods build a cached wrapper on first rpc call
+        # subsequent calls should use the cached wrapper
+        wrapper_fn.reset_mock()
+
+        client.import_documents(request)
 
         # Establish that a new wrapper was not created for this call
         assert wrapper_fn.call_count == 0
         assert mock_rpc.call_count == 2
 
 
-def test_delete_document_rest_required_fields(
-    request_type=document_service.DeleteDocumentRequest,
+def test_import_documents_rest_required_fields(
+    request_type=import_config.ImportDocumentsRequest,
 ):
     transport_class = transports.DocumentServiceRestTransport
 
     request_init = {}
-    request_init["name"] = ""
+    request_init["parent"] = ""
     request = request_type(**request_init)
     pb_request = request_type.pb(request)
     jsonified_request = json.loads(
@@ -5985,21 +6695,21 @@ def test_delete_document_rest_required_fields(
 
     unset_fields = transport_class(
         credentials=ga_credentials.AnonymousCredentials()
-    ).delete_document._get_unset_required_fields(jsonified_request)
+    ).import_documents._get_unset_required_fields(jsonified_request)
     jsonified_request.update(unset_fields)
 
     # verify required fields with default values are now present
 
-    jsonified_request["name"] = "name_value"
+    jsonified_request["parent"] = "parent_value"
 
     unset_fields = transport_class(
         credentials=ga_credentials.AnonymousCredentials()
-    ).delete_document._get_unset_required_fields(jsonified_request)
+    ).import_documents._get_unset_required_fields(jsonified_request)
     jsonified_request.update(unset_fields)
 
     # verify required fields with non-default values are left alone
-    assert "name" in jsonified_request
-    assert jsonified_request["name"] == "name_value"
+    assert "parent" in jsonified_request
+    assert jsonified_request["parent"] == "parent_value"
 
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
@@ -6008,7 +6718,7 @@ def test_delete_document_rest_required_fields(
     request = request_type(**request_init)
 
     # Designate an appropriate value for the returned response.
-    return_value = None
+    return_value = operations_pb2.Operation(name="operations/spam")
     # Mock the http request call within the method and fake a response.
     with mock.patch.object(Session, "request") as req:
         # We need to mock transcode() because providing default values
@@ -6020,36 +6730,37 @@ def test_delete_document_rest_required_fields(
             pb_request = request_type.pb(request)
             transcode_result = {
                 "uri": "v1/sample_method",
-                "method": "delete",
+                "method": "post",
                 "query_params": pb_request,
             }
+            transcode_result["body"] = pb_request
             transcode.return_value = transcode_result
 
             response_value = Response()
             response_value.status_code = 200
-            json_return_value = ""
+            json_return_value = json_format.MessageToJson(return_value)
 
             response_value._content = json_return_value.encode("UTF-8")
             req.return_value = response_value
 
-            response = client.delete_document(request)
+            response = client.import_documents(request)
 
             expected_params = [("$alt", "json;enum-encoding=int")]
             actual_params = req.call_args.kwargs["params"]
             assert expected_params == actual_params
 
 
-def test_delete_document_rest_unset_required_fields():
+def test_import_documents_rest_unset_required_fields():
     transport = transports.DocumentServiceRestTransport(
         credentials=ga_credentials.AnonymousCredentials
     )
 
-    unset_fields = transport.delete_document._get_unset_required_fields({})
-    assert set(unset_fields) == (set(()) & set(("name",)))
+    unset_fields = transport.import_documents._get_unset_required_fields({})
+    assert set(unset_fields) == (set(()) & set(("parent",)))
 
 
 @pytest.mark.parametrize("null_interceptor", [True, False])
-def test_delete_document_rest_interceptors(null_interceptor):
+def test_import_documents_rest_interceptors(null_interceptor):
     transport = transports.DocumentServiceRestTransport(
         credentials=ga_credentials.AnonymousCredentials(),
         interceptor=None
@@ -6062,11 +6773,16 @@ def test_delete_document_rest_interceptors(null_interceptor):
     ) as req, mock.patch.object(
         path_template, "transcode"
     ) as transcode, mock.patch.object(
-        transports.DocumentServiceRestInterceptor, "pre_delete_document"
+        operation.Operation, "_set_result_from_operation"
+    ), mock.patch.object(
+        transports.DocumentServiceRestInterceptor, "post_import_documents"
+    ) as post, mock.patch.object(
+        transports.DocumentServiceRestInterceptor, "pre_import_documents"
     ) as pre:
         pre.assert_not_called()
-        pb_message = document_service.DeleteDocumentRequest.pb(
-            document_service.DeleteDocumentRequest()
+        post.assert_not_called()
+        pb_message = import_config.ImportDocumentsRequest.pb(
+            import_config.ImportDocumentsRequest()
         )
         transcode.return_value = {
             "method": "post",
@@ -6078,15 +6794,19 @@ def test_delete_document_rest_interceptors(null_interceptor):
         req.return_value = Response()
         req.return_value.status_code = 200
         req.return_value.request = PreparedRequest()
+        req.return_value._content = json_format.MessageToJson(
+            operations_pb2.Operation()
+        )
 
-        request = document_service.DeleteDocumentRequest()
+        request = import_config.ImportDocumentsRequest()
         metadata = [
             ("key", "val"),
             ("cephalopod", "squid"),
         ]
         pre.return_value = request, metadata
+        post.return_value = operations_pb2.Operation()
 
-        client.delete_document(
+        client.import_documents(
             request,
             metadata=[
                 ("key", "val"),
@@ -6095,10 +6815,11 @@ def test_delete_document_rest_interceptors(null_interceptor):
         )
 
         pre.assert_called_once()
+        post.assert_called_once()
 
 
-def test_delete_document_rest_bad_request(
-    transport: str = "rest", request_type=document_service.DeleteDocumentRequest
+def test_import_documents_rest_bad_request(
+    transport: str = "rest", request_type=import_config.ImportDocumentsRequest
 ):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
@@ -6107,7 +6828,7 @@ def test_delete_document_rest_bad_request(
 
     # send a request that will satisfy transcoding
     request_init = {
-        "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
+        "parent": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4"
     }
     request = request_type(**request_init)
 
@@ -6120,67 +6841,10 @@ def test_delete_document_rest_bad_request(
         response_value.status_code = 400
         response_value.request = Request()
         req.return_value = response_value
-        client.delete_document(request)
-
-
-def test_delete_document_rest_flattened():
-    client = DocumentServiceClient(
-        credentials=ga_credentials.AnonymousCredentials(),
-        transport="rest",
-    )
-
-    # Mock the http request call within the method and fake a response.
-    with mock.patch.object(type(client.transport._session), "request") as req:
-        # Designate an appropriate value for the returned response.
-        return_value = None
-
-        # get arguments that satisfy an http rule for this method
-        sample_request = {
-            "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
-        }
-
-        # get truthy value for each flattened field
-        mock_args = dict(
-            name="name_value",
-        )
-        mock_args.update(sample_request)
-
-        # Wrap the value into a proper Response obj
-        response_value = Response()
-        response_value.status_code = 200
-        json_return_value = ""
-        response_value._content = json_return_value.encode("UTF-8")
-        req.return_value = response_value
-
-        client.delete_document(**mock_args)
-
-        # Establish that the underlying call was made with the expected
-        # request object values.
-        assert len(req.mock_calls) == 1
-        _, args, _ = req.mock_calls[0]
-        assert path_template.validate(
-            "%s/v1alpha/{name=projects/*/locations/*/dataStores/*/branches/*/documents/*}"
-            % client.transport._host,
-            args[1],
-        )
-
-
-def test_delete_document_rest_flattened_error(transport: str = "rest"):
-    client = DocumentServiceClient(
-        credentials=ga_credentials.AnonymousCredentials(),
-        transport=transport,
-    )
-
-    # Attempting to call a method with both a request object and flattened
-    # fields is an error.
-    with pytest.raises(ValueError):
-        client.delete_document(
-            document_service.DeleteDocumentRequest(),
-            name="name_value",
-        )
+        client.import_documents(request)
 
 
-def test_delete_document_rest_error():
+def test_import_documents_rest_error():
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(), transport="rest"
     )
@@ -6189,11 +6853,11 @@ def test_delete_document_rest_error():
 @pytest.mark.parametrize(
     "request_type",
     [
-        import_config.ImportDocumentsRequest,
+        purge_config.PurgeDocumentsRequest,
         dict,
     ],
 )
-def test_import_documents_rest(request_type):
+def test_purge_documents_rest(request_type):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
         transport="rest",
@@ -6217,13 +6881,13 @@ def test_import_documents_rest(request_type):
 
         response_value._content = json_return_value.encode("UTF-8")
         req.return_value = response_value
-        response = client.import_documents(request)
+        response = client.purge_documents(request)
 
     # Establish that the response is the type that we expect.
     assert response.operation.name == "operations/spam"
 
 
-def test_import_documents_rest_use_cached_wrapped_rpc():
+def test_purge_documents_rest_use_cached_wrapped_rpc():
     # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
     # instead of constructing them on each call
     with mock.patch("google.api_core.gapic_v1.method.wrap_method") as wrapper_fn:
@@ -6237,19 +6901,17 @@ def test_import_documents_rest_use_cached_wrapped_rpc():
         wrapper_fn.reset_mock()
 
         # Ensure method has been cached
-        assert client._transport.import_documents in client._transport._wrapped_methods
+        assert client._transport.purge_documents in client._transport._wrapped_methods
 
         # Replace cached wrapped function with mock
         mock_rpc = mock.Mock()
         mock_rpc.return_value.name = (
             "foo"  # operation_request.operation in compute client(s) expect a string.
         )
-        client._transport._wrapped_methods[
-            client._transport.import_documents
-        ] = mock_rpc
+        client._transport._wrapped_methods[client._transport.purge_documents] = mock_rpc
 
         request = {}
-        client.import_documents(request)
+        client.purge_documents(request)
 
         # Establish that the underlying gRPC stub method was called.
         assert mock_rpc.call_count == 1
@@ -6258,20 +6920,21 @@ def test_import_documents_rest_use_cached_wrapped_rpc():
         # subsequent calls should use the cached wrapper
         wrapper_fn.reset_mock()
 
-        client.import_documents(request)
+        client.purge_documents(request)
 
         # Establish that a new wrapper was not created for this call
         assert wrapper_fn.call_count == 0
         assert mock_rpc.call_count == 2
 
 
-def test_import_documents_rest_required_fields(
-    request_type=import_config.ImportDocumentsRequest,
+def test_purge_documents_rest_required_fields(
+    request_type=purge_config.PurgeDocumentsRequest,
 ):
     transport_class = transports.DocumentServiceRestTransport
 
     request_init = {}
     request_init["parent"] = ""
+    request_init["filter"] = ""
     request = request_type(**request_init)
     pb_request = request_type.pb(request)
     jsonified_request = json.loads(
@@ -6282,21 +6945,24 @@ def test_import_documents_rest_required_fields(
 
     unset_fields = transport_class(
         credentials=ga_credentials.AnonymousCredentials()
-    ).import_documents._get_unset_required_fields(jsonified_request)
+    ).purge_documents._get_unset_required_fields(jsonified_request)
     jsonified_request.update(unset_fields)
 
     # verify required fields with default values are now present
 
     jsonified_request["parent"] = "parent_value"
+    jsonified_request["filter"] = "filter_value"
 
     unset_fields = transport_class(
         credentials=ga_credentials.AnonymousCredentials()
-    ).import_documents._get_unset_required_fields(jsonified_request)
+    ).purge_documents._get_unset_required_fields(jsonified_request)
     jsonified_request.update(unset_fields)
 
     # verify required fields with non-default values are left alone
     assert "parent" in jsonified_request
     assert jsonified_request["parent"] == "parent_value"
+    assert "filter" in jsonified_request
+    assert jsonified_request["filter"] == "filter_value"
 
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
@@ -6330,24 +6996,32 @@ def test_import_documents_rest_required_fields(
             response_value._content = json_return_value.encode("UTF-8")
             req.return_value = response_value
 
-            response = client.import_documents(request)
+            response = client.purge_documents(request)
 
             expected_params = [("$alt", "json;enum-encoding=int")]
             actual_params = req.call_args.kwargs["params"]
             assert expected_params == actual_params
 
 
-def test_import_documents_rest_unset_required_fields():
+def test_purge_documents_rest_unset_required_fields():
     transport = transports.DocumentServiceRestTransport(
         credentials=ga_credentials.AnonymousCredentials
     )
 
-    unset_fields = transport.import_documents._get_unset_required_fields({})
-    assert set(unset_fields) == (set(()) & set(("parent",)))
+    unset_fields = transport.purge_documents._get_unset_required_fields({})
+    assert set(unset_fields) == (
+        set(())
+        & set(
+            (
+                "parent",
+                "filter",
+            )
+        )
+    )
 
 
 @pytest.mark.parametrize("null_interceptor", [True, False])
-def test_import_documents_rest_interceptors(null_interceptor):
+def test_purge_documents_rest_interceptors(null_interceptor):
     transport = transports.DocumentServiceRestTransport(
         credentials=ga_credentials.AnonymousCredentials(),
         interceptor=None
@@ -6362,14 +7036,14 @@ def test_import_documents_rest_interceptors(null_interceptor):
     ) as transcode, mock.patch.object(
         operation.Operation, "_set_result_from_operation"
     ), mock.patch.object(
-        transports.DocumentServiceRestInterceptor, "post_import_documents"
+        transports.DocumentServiceRestInterceptor, "post_purge_documents"
     ) as post, mock.patch.object(
-        transports.DocumentServiceRestInterceptor, "pre_import_documents"
+        transports.DocumentServiceRestInterceptor, "pre_purge_documents"
     ) as pre:
         pre.assert_not_called()
         post.assert_not_called()
-        pb_message = import_config.ImportDocumentsRequest.pb(
-            import_config.ImportDocumentsRequest()
+        pb_message = purge_config.PurgeDocumentsRequest.pb(
+            purge_config.PurgeDocumentsRequest()
         )
         transcode.return_value = {
             "method": "post",
@@ -6385,7 +7059,7 @@ def test_import_documents_rest_interceptors(null_interceptor):
             operations_pb2.Operation()
         )
 
-        request = import_config.ImportDocumentsRequest()
+        request = purge_config.PurgeDocumentsRequest()
         metadata = [
             ("key", "val"),
             ("cephalopod", "squid"),
@@ -6393,7 +7067,7 @@ def test_import_documents_rest_interceptors(null_interceptor):
         pre.return_value = request, metadata
         post.return_value = operations_pb2.Operation()
 
-        client.import_documents(
+        client.purge_documents(
             request,
             metadata=[
                 ("key", "val"),
@@ -6405,8 +7079,8 @@ def test_import_documents_rest_interceptors(null_interceptor):
         post.assert_called_once()
 
 
-def test_import_documents_rest_bad_request(
-    transport: str = "rest", request_type=import_config.ImportDocumentsRequest
+def test_purge_documents_rest_bad_request(
+    transport: str = "rest", request_type=purge_config.PurgeDocumentsRequest
 ):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
@@ -6428,10 +7102,10 @@ def test_import_documents_rest_bad_request(
         response_value.status_code = 400
         response_value.request = Request()
         req.return_value = response_value
-        client.import_documents(request)
+        client.purge_documents(request)
 
 
-def test_import_documents_rest_error():
+def test_purge_documents_rest_error():
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(), transport="rest"
     )
@@ -6440,11 +7114,11 @@ def test_import_documents_rest_error():
 @pytest.mark.parametrize(
     "request_type",
     [
-        purge_config.PurgeDocumentsRequest,
+        document_service.GetProcessedDocumentRequest,
         dict,
     ],
 )
-def test_purge_documents_rest(request_type):
+def test_get_processed_document_rest(request_type):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
         transport="rest",
@@ -6452,29 +7126,35 @@ def test_purge_documents_rest(request_type):
 
     # send a request that will satisfy transcoding
     request_init = {
-        "parent": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4"
+        "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
     }
     request = request_type(**request_init)
 
     # Mock the http request call within the method and fake a response.
     with mock.patch.object(type(client.transport._session), "request") as req:
         # Designate an appropriate value for the returned response.
-        return_value = operations_pb2.Operation(name="operations/spam")
+        return_value = document.ProcessedDocument(
+            document="document_value",
+            json_data="json_data_value",
+        )
 
         # Wrap the value into a proper Response obj
         response_value = Response()
         response_value.status_code = 200
+        # Convert return value to protobuf type
+        return_value = document.ProcessedDocument.pb(return_value)
         json_return_value = json_format.MessageToJson(return_value)
 
         response_value._content = json_return_value.encode("UTF-8")
         req.return_value = response_value
-        response = client.purge_documents(request)
+        response = client.get_processed_document(request)
 
     # Establish that the response is the type that we expect.
-    assert response.operation.name == "operations/spam"
+    assert isinstance(response, document.ProcessedDocument)
+    assert response.document == "document_value"
 
 
-def test_purge_documents_rest_use_cached_wrapped_rpc():
+def test_get_processed_document_rest_use_cached_wrapped_rpc():
     # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
     # instead of constructing them on each call
     with mock.patch("google.api_core.gapic_v1.method.wrap_method") as wrapper_fn:
@@ -6488,40 +7168,40 @@ def test_purge_documents_rest_use_cached_wrapped_rpc():
         wrapper_fn.reset_mock()
 
         # Ensure method has been cached
-        assert client._transport.purge_documents in client._transport._wrapped_methods
+        assert (
+            client._transport.get_processed_document
+            in client._transport._wrapped_methods
+        )
 
         # Replace cached wrapped function with mock
         mock_rpc = mock.Mock()
         mock_rpc.return_value.name = (
             "foo"  # operation_request.operation in compute client(s) expect a string.
         )
-        client._transport._wrapped_methods[client._transport.purge_documents] = mock_rpc
+        client._transport._wrapped_methods[
+            client._transport.get_processed_document
+        ] = mock_rpc
 
         request = {}
-        client.purge_documents(request)
+        client.get_processed_document(request)
 
         # Establish that the underlying gRPC stub method was called.
         assert mock_rpc.call_count == 1
 
-        # Operation methods build a cached wrapper on first rpc call
-        # subsequent calls should use the cached wrapper
-        wrapper_fn.reset_mock()
-
-        client.purge_documents(request)
+        client.get_processed_document(request)
 
         # Establish that a new wrapper was not created for this call
         assert wrapper_fn.call_count == 0
         assert mock_rpc.call_count == 2
 
 
-def test_purge_documents_rest_required_fields(
-    request_type=purge_config.PurgeDocumentsRequest,
+def test_get_processed_document_rest_required_fields(
+    request_type=document_service.GetProcessedDocumentRequest,
 ):
     transport_class = transports.DocumentServiceRestTransport
 
     request_init = {}
-    request_init["parent"] = ""
-    request_init["filter"] = ""
+    request_init["name"] = ""
     request = request_type(**request_init)
     pb_request = request_type.pb(request)
     jsonified_request = json.loads(
@@ -6532,24 +7212,28 @@ def test_purge_documents_rest_required_fields(
 
     unset_fields = transport_class(
         credentials=ga_credentials.AnonymousCredentials()
-    ).purge_documents._get_unset_required_fields(jsonified_request)
+    ).get_processed_document._get_unset_required_fields(jsonified_request)
     jsonified_request.update(unset_fields)
 
     # verify required fields with default values are now present
 
-    jsonified_request["parent"] = "parent_value"
-    jsonified_request["filter"] = "filter_value"
+    jsonified_request["name"] = "name_value"
 
     unset_fields = transport_class(
         credentials=ga_credentials.AnonymousCredentials()
-    ).purge_documents._get_unset_required_fields(jsonified_request)
+    ).get_processed_document._get_unset_required_fields(jsonified_request)
+    # Check that path parameters and body parameters are not mixing in.
+    assert not set(unset_fields) - set(
+        (
+            "processed_document_format",
+            "processed_document_type",
+        )
+    )
     jsonified_request.update(unset_fields)
 
     # verify required fields with non-default values are left alone
-    assert "parent" in jsonified_request
-    assert jsonified_request["parent"] == "parent_value"
-    assert "filter" in jsonified_request
-    assert jsonified_request["filter"] == "filter_value"
+    assert "name" in jsonified_request
+    assert jsonified_request["name"] == "name_value"
 
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
@@ -6558,7 +7242,7 @@ def test_purge_documents_rest_required_fields(
     request = request_type(**request_init)
 
     # Designate an appropriate value for the returned response.
-    return_value = operations_pb2.Operation(name="operations/spam")
+    return_value = document.ProcessedDocument()
     # Mock the http request call within the method and fake a response.
     with mock.patch.object(Session, "request") as req:
         # We need to mock transcode() because providing default values
@@ -6570,45 +7254,52 @@ def test_purge_documents_rest_required_fields(
             pb_request = request_type.pb(request)
             transcode_result = {
                 "uri": "v1/sample_method",
-                "method": "post",
+                "method": "get",
                 "query_params": pb_request,
             }
-            transcode_result["body"] = pb_request
             transcode.return_value = transcode_result
 
             response_value = Response()
             response_value.status_code = 200
+
+            # Convert return value to protobuf type
+            return_value = document.ProcessedDocument.pb(return_value)
             json_return_value = json_format.MessageToJson(return_value)
 
             response_value._content = json_return_value.encode("UTF-8")
             req.return_value = response_value
 
-            response = client.purge_documents(request)
+            response = client.get_processed_document(request)
 
             expected_params = [("$alt", "json;enum-encoding=int")]
             actual_params = req.call_args.kwargs["params"]
             assert expected_params == actual_params
 
 
-def test_purge_documents_rest_unset_required_fields():
+def test_get_processed_document_rest_unset_required_fields():
     transport = transports.DocumentServiceRestTransport(
         credentials=ga_credentials.AnonymousCredentials
     )
 
-    unset_fields = transport.purge_documents._get_unset_required_fields({})
+    unset_fields = transport.get_processed_document._get_unset_required_fields({})
     assert set(unset_fields) == (
-        set(())
+        set(
+            (
+                "processedDocumentFormat",
+                "processedDocumentType",
+            )
+        )
         & set(
             (
-                "parent",
-                "filter",
+                "name",
+                "processedDocumentType",
             )
         )
     )
 
 
 @pytest.mark.parametrize("null_interceptor", [True, False])
-def test_purge_documents_rest_interceptors(null_interceptor):
+def test_get_processed_document_rest_interceptors(null_interceptor):
     transport = transports.DocumentServiceRestTransport(
         credentials=ga_credentials.AnonymousCredentials(),
         interceptor=None
@@ -6621,16 +7312,14 @@ def test_purge_documents_rest_interceptors(null_interceptor):
     ) as req, mock.patch.object(
         path_template, "transcode"
     ) as transcode, mock.patch.object(
-        operation.Operation, "_set_result_from_operation"
-    ), mock.patch.object(
-        transports.DocumentServiceRestInterceptor, "post_purge_documents"
+        transports.DocumentServiceRestInterceptor, "post_get_processed_document"
     ) as post, mock.patch.object(
-        transports.DocumentServiceRestInterceptor, "pre_purge_documents"
+        transports.DocumentServiceRestInterceptor, "pre_get_processed_document"
     ) as pre:
         pre.assert_not_called()
         post.assert_not_called()
-        pb_message = purge_config.PurgeDocumentsRequest.pb(
-            purge_config.PurgeDocumentsRequest()
+        pb_message = document_service.GetProcessedDocumentRequest.pb(
+            document_service.GetProcessedDocumentRequest()
         )
         transcode.return_value = {
             "method": "post",
@@ -6642,19 +7331,19 @@ def test_purge_documents_rest_interceptors(null_interceptor):
         req.return_value = Response()
         req.return_value.status_code = 200
         req.return_value.request = PreparedRequest()
-        req.return_value._content = json_format.MessageToJson(
-            operations_pb2.Operation()
+        req.return_value._content = document.ProcessedDocument.to_json(
+            document.ProcessedDocument()
         )
 
-        request = purge_config.PurgeDocumentsRequest()
+        request = document_service.GetProcessedDocumentRequest()
         metadata = [
             ("key", "val"),
             ("cephalopod", "squid"),
         ]
         pre.return_value = request, metadata
-        post.return_value = operations_pb2.Operation()
+        post.return_value = document.ProcessedDocument()
 
-        client.purge_documents(
+        client.get_processed_document(
             request,
             metadata=[
                 ("key", "val"),
@@ -6666,8 +7355,8 @@ def test_purge_documents_rest_interceptors(null_interceptor):
         post.assert_called_once()
 
 
-def test_purge_documents_rest_bad_request(
-    transport: str = "rest", request_type=purge_config.PurgeDocumentsRequest
+def test_get_processed_document_rest_bad_request(
+    transport: str = "rest", request_type=document_service.GetProcessedDocumentRequest
 ):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
@@ -6676,7 +7365,7 @@ def test_purge_documents_rest_bad_request(
 
     # send a request that will satisfy transcoding
     request_init = {
-        "parent": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4"
+        "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
     }
     request = request_type(**request_init)
 
@@ -6689,10 +7378,69 @@ def test_purge_documents_rest_bad_request(
         response_value.status_code = 400
         response_value.request = Request()
         req.return_value = response_value
-        client.purge_documents(request)
+        client.get_processed_document(request)
 
 
-def test_purge_documents_rest_error():
+def test_get_processed_document_rest_flattened():
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="rest",
+    )
+
+    # Mock the http request call within the method and fake a response.
+    with mock.patch.object(type(client.transport._session), "request") as req:
+        # Designate an appropriate value for the returned response.
+        return_value = document.ProcessedDocument()
+
+        # get arguments that satisfy an http rule for this method
+        sample_request = {
+            "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
+        }
+
+        # get truthy value for each flattened field
+        mock_args = dict(
+            name="name_value",
+        )
+        mock_args.update(sample_request)
+
+        # Wrap the value into a proper Response obj
+        response_value = Response()
+        response_value.status_code = 200
+        # Convert return value to protobuf type
+        return_value = document.ProcessedDocument.pb(return_value)
+        json_return_value = json_format.MessageToJson(return_value)
+        response_value._content = json_return_value.encode("UTF-8")
+        req.return_value = response_value
+
+        client.get_processed_document(**mock_args)
+
+        # Establish that the underlying call was made with the expected
+        # request object values.
+        assert len(req.mock_calls) == 1
+        _, args, _ = req.mock_calls[0]
+        assert path_template.validate(
+            "%s/v1alpha/{name=projects/*/locations/*/dataStores/*/branches/*/documents/*}:getProcessedDocument"
+            % client.transport._host,
+            args[1],
+        )
+
+
+def test_get_processed_document_rest_flattened_error(transport: str = "rest"):
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport=transport,
+    )
+
+    # Attempting to call a method with both a request object and flattened
+    # fields is an error.
+    with pytest.raises(ValueError):
+        client.get_processed_document(
+            document_service.GetProcessedDocumentRequest(),
+            name="name_value",
+        )
+
+
+def test_get_processed_document_rest_error():
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(), transport="rest"
     )
@@ -6701,11 +7449,11 @@ def test_purge_documents_rest_error():
 @pytest.mark.parametrize(
     "request_type",
     [
-        document_service.GetProcessedDocumentRequest,
+        document_service.BatchGetDocumentsMetadataRequest,
         dict,
     ],
 )
-def test_get_processed_document_rest(request_type):
+def test_batch_get_documents_metadata_rest(request_type):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
         transport="rest",
@@ -6713,35 +7461,33 @@ def test_get_processed_document_rest(request_type):
 
     # send a request that will satisfy transcoding
     request_init = {
-        "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
+        "parent": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4"
     }
     request = request_type(**request_init)
 
     # Mock the http request call within the method and fake a response.
     with mock.patch.object(type(client.transport._session), "request") as req:
         # Designate an appropriate value for the returned response.
-        return_value = document.ProcessedDocument(
-            document="document_value",
-            json_data="json_data_value",
-        )
+        return_value = document_service.BatchGetDocumentsMetadataResponse()
 
         # Wrap the value into a proper Response obj
         response_value = Response()
         response_value.status_code = 200
         # Convert return value to protobuf type
-        return_value = document.ProcessedDocument.pb(return_value)
+        return_value = document_service.BatchGetDocumentsMetadataResponse.pb(
+            return_value
+        )
         json_return_value = json_format.MessageToJson(return_value)
 
         response_value._content = json_return_value.encode("UTF-8")
         req.return_value = response_value
-        response = client.get_processed_document(request)
+        response = client.batch_get_documents_metadata(request)
 
     # Establish that the response is the type that we expect.
-    assert isinstance(response, document.ProcessedDocument)
-    assert response.document == "document_value"
+    assert isinstance(response, document_service.BatchGetDocumentsMetadataResponse)
 
 
-def test_get_processed_document_rest_use_cached_wrapped_rpc():
+def test_batch_get_documents_metadata_rest_use_cached_wrapped_rpc():
     # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
     # instead of constructing them on each call
     with mock.patch("google.api_core.gapic_v1.method.wrap_method") as wrapper_fn:
@@ -6756,7 +7502,7 @@ def test_get_processed_document_rest_use_cached_wrapped_rpc():
 
         # Ensure method has been cached
         assert (
-            client._transport.get_processed_document
+            client._transport.batch_get_documents_metadata
             in client._transport._wrapped_methods
         )
 
@@ -6766,29 +7512,29 @@ def test_get_processed_document_rest_use_cached_wrapped_rpc():
             "foo"  # operation_request.operation in compute client(s) expect a string.
         )
         client._transport._wrapped_methods[
-            client._transport.get_processed_document
+            client._transport.batch_get_documents_metadata
         ] = mock_rpc
 
         request = {}
-        client.get_processed_document(request)
+        client.batch_get_documents_metadata(request)
 
         # Establish that the underlying gRPC stub method was called.
         assert mock_rpc.call_count == 1
 
-        client.get_processed_document(request)
+        client.batch_get_documents_metadata(request)
 
         # Establish that a new wrapper was not created for this call
         assert wrapper_fn.call_count == 0
         assert mock_rpc.call_count == 2
 
 
-def test_get_processed_document_rest_required_fields(
-    request_type=document_service.GetProcessedDocumentRequest,
+def test_batch_get_documents_metadata_rest_required_fields(
+    request_type=document_service.BatchGetDocumentsMetadataRequest,
 ):
     transport_class = transports.DocumentServiceRestTransport
 
     request_init = {}
-    request_init["name"] = ""
+    request_init["parent"] = ""
     request = request_type(**request_init)
     pb_request = request_type.pb(request)
     jsonified_request = json.loads(
@@ -6799,28 +7545,23 @@ def test_get_processed_document_rest_required_fields(
 
     unset_fields = transport_class(
         credentials=ga_credentials.AnonymousCredentials()
-    ).get_processed_document._get_unset_required_fields(jsonified_request)
+    ).batch_get_documents_metadata._get_unset_required_fields(jsonified_request)
     jsonified_request.update(unset_fields)
 
     # verify required fields with default values are now present
 
-    jsonified_request["name"] = "name_value"
+    jsonified_request["parent"] = "parent_value"
 
     unset_fields = transport_class(
         credentials=ga_credentials.AnonymousCredentials()
-    ).get_processed_document._get_unset_required_fields(jsonified_request)
+    ).batch_get_documents_metadata._get_unset_required_fields(jsonified_request)
     # Check that path parameters and body parameters are not mixing in.
-    assert not set(unset_fields) - set(
-        (
-            "processed_document_format",
-            "processed_document_type",
-        )
-    )
+    assert not set(unset_fields) - set(("matcher",))
     jsonified_request.update(unset_fields)
 
     # verify required fields with non-default values are left alone
-    assert "name" in jsonified_request
-    assert jsonified_request["name"] == "name_value"
+    assert "parent" in jsonified_request
+    assert jsonified_request["parent"] == "parent_value"
 
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
@@ -6829,7 +7570,7 @@ def test_get_processed_document_rest_required_fields(
     request = request_type(**request_init)
 
     # Designate an appropriate value for the returned response.
-    return_value = document.ProcessedDocument()
+    return_value = document_service.BatchGetDocumentsMetadataResponse()
     # Mock the http request call within the method and fake a response.
     with mock.patch.object(Session, "request") as req:
         # We need to mock transcode() because providing default values
@@ -6850,43 +7591,40 @@ def test_get_processed_document_rest_required_fields(
             response_value.status_code = 200
 
             # Convert return value to protobuf type
-            return_value = document.ProcessedDocument.pb(return_value)
+            return_value = document_service.BatchGetDocumentsMetadataResponse.pb(
+                return_value
+            )
             json_return_value = json_format.MessageToJson(return_value)
 
             response_value._content = json_return_value.encode("UTF-8")
             req.return_value = response_value
 
-            response = client.get_processed_document(request)
+            response = client.batch_get_documents_metadata(request)
 
             expected_params = [("$alt", "json;enum-encoding=int")]
             actual_params = req.call_args.kwargs["params"]
             assert expected_params == actual_params
 
 
-def test_get_processed_document_rest_unset_required_fields():
+def test_batch_get_documents_metadata_rest_unset_required_fields():
     transport = transports.DocumentServiceRestTransport(
         credentials=ga_credentials.AnonymousCredentials
     )
 
-    unset_fields = transport.get_processed_document._get_unset_required_fields({})
+    unset_fields = transport.batch_get_documents_metadata._get_unset_required_fields({})
     assert set(unset_fields) == (
-        set(
-            (
-                "processedDocumentFormat",
-                "processedDocumentType",
-            )
-        )
+        set(("matcher",))
         & set(
             (
-                "name",
-                "processedDocumentType",
+                "parent",
+                "matcher",
             )
         )
     )
 
 
 @pytest.mark.parametrize("null_interceptor", [True, False])
-def test_get_processed_document_rest_interceptors(null_interceptor):
+def test_batch_get_documents_metadata_rest_interceptors(null_interceptor):
     transport = transports.DocumentServiceRestTransport(
         credentials=ga_credentials.AnonymousCredentials(),
         interceptor=None
@@ -6899,14 +7637,14 @@ def test_get_processed_document_rest_interceptors(null_interceptor):
     ) as req, mock.patch.object(
         path_template, "transcode"
     ) as transcode, mock.patch.object(
-        transports.DocumentServiceRestInterceptor, "post_get_processed_document"
+        transports.DocumentServiceRestInterceptor, "post_batch_get_documents_metadata"
     ) as post, mock.patch.object(
-        transports.DocumentServiceRestInterceptor, "pre_get_processed_document"
+        transports.DocumentServiceRestInterceptor, "pre_batch_get_documents_metadata"
     ) as pre:
         pre.assert_not_called()
         post.assert_not_called()
-        pb_message = document_service.GetProcessedDocumentRequest.pb(
-            document_service.GetProcessedDocumentRequest()
+        pb_message = document_service.BatchGetDocumentsMetadataRequest.pb(
+            document_service.BatchGetDocumentsMetadataRequest()
         )
         transcode.return_value = {
             "method": "post",
@@ -6918,19 +7656,21 @@ def test_get_processed_document_rest_interceptors(null_interceptor):
         req.return_value = Response()
         req.return_value.status_code = 200
         req.return_value.request = PreparedRequest()
-        req.return_value._content = document.ProcessedDocument.to_json(
-            document.ProcessedDocument()
+        req.return_value._content = (
+            document_service.BatchGetDocumentsMetadataResponse.to_json(
+                document_service.BatchGetDocumentsMetadataResponse()
+            )
         )
 
-        request = document_service.GetProcessedDocumentRequest()
+        request = document_service.BatchGetDocumentsMetadataRequest()
         metadata = [
             ("key", "val"),
             ("cephalopod", "squid"),
         ]
         pre.return_value = request, metadata
-        post.return_value = document.ProcessedDocument()
+        post.return_value = document_service.BatchGetDocumentsMetadataResponse()
 
-        client.get_processed_document(
+        client.batch_get_documents_metadata(
             request,
             metadata=[
                 ("key", "val"),
@@ -6942,8 +7682,9 @@ def test_get_processed_document_rest_interceptors(null_interceptor):
         post.assert_called_once()
 
 
-def test_get_processed_document_rest_bad_request(
-    transport: str = "rest", request_type=document_service.GetProcessedDocumentRequest
+def test_batch_get_documents_metadata_rest_bad_request(
+    transport: str = "rest",
+    request_type=document_service.BatchGetDocumentsMetadataRequest,
 ):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
@@ -6952,7 +7693,7 @@ def test_get_processed_document_rest_bad_request(
 
     # send a request that will satisfy transcoding
     request_init = {
-        "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
+        "parent": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4"
     }
     request = request_type(**request_init)
 
@@ -6965,10 +7706,10 @@ def test_get_processed_document_rest_bad_request(
         response_value.status_code = 400
         response_value.request = Request()
         req.return_value = response_value
-        client.get_processed_document(request)
+        client.batch_get_documents_metadata(request)
 
 
-def test_get_processed_document_rest_flattened():
+def test_batch_get_documents_metadata_rest_flattened():
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
         transport="rest",
@@ -6977,16 +7718,16 @@ def test_get_processed_document_rest_flattened():
     # Mock the http request call within the method and fake a response.
     with mock.patch.object(type(client.transport._session), "request") as req:
         # Designate an appropriate value for the returned response.
-        return_value = document.ProcessedDocument()
+        return_value = document_service.BatchGetDocumentsMetadataResponse()
 
         # get arguments that satisfy an http rule for this method
         sample_request = {
-            "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
+            "parent": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4"
         }
 
         # get truthy value for each flattened field
         mock_args = dict(
-            name="name_value",
+            parent="parent_value",
         )
         mock_args.update(sample_request)
 
@@ -6994,25 +7735,27 @@ def test_get_processed_document_rest_flattened():
         response_value = Response()
         response_value.status_code = 200
         # Convert return value to protobuf type
-        return_value = document.ProcessedDocument.pb(return_value)
+        return_value = document_service.BatchGetDocumentsMetadataResponse.pb(
+            return_value
+        )
         json_return_value = json_format.MessageToJson(return_value)
         response_value._content = json_return_value.encode("UTF-8")
         req.return_value = response_value
 
-        client.get_processed_document(**mock_args)
+        client.batch_get_documents_metadata(**mock_args)
 
         # Establish that the underlying call was made with the expected
         # request object values.
         assert len(req.mock_calls) == 1
         _, args, _ = req.mock_calls[0]
         assert path_template.validate(
-            "%s/v1alpha/{name=projects/*/locations/*/dataStores/*/branches/*/documents/*}:getProcessedDocument"
+            "%s/v1alpha/{parent=projects/*/locations/*/dataStores/*/branches/*}/batchGetDocumentsMetadata"
             % client.transport._host,
             args[1],
         )
 
 
-def test_get_processed_document_rest_flattened_error(transport: str = "rest"):
+def test_batch_get_documents_metadata_rest_flattened_error(transport: str = "rest"):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
         transport=transport,
@@ -7021,13 +7764,13 @@ def test_get_processed_document_rest_flattened_error(transport: str = "rest"):
     # Attempting to call a method with both a request object and flattened
     # fields is an error.
     with pytest.raises(ValueError):
-        client.get_processed_document(
-            document_service.GetProcessedDocumentRequest(),
-            name="name_value",
+        client.batch_get_documents_metadata(
+            document_service.BatchGetDocumentsMetadataRequest(),
+            parent="parent_value",
         )
 
 
-def test_get_processed_document_rest_error():
+def test_batch_get_documents_metadata_rest_error():
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(), transport="rest"
     )
@@ -7180,6 +7923,7 @@ def test_document_service_base_transport():
         "import_documents",
         "purge_documents",
         "get_processed_document",
+        "batch_get_documents_metadata",
         "get_operation",
         "cancel_operation",
         "list_operations",
@@ -7487,6 +8231,9 @@ def test_document_service_client_transport_session_collision(transport_name):
     session1 = client1.transport.get_processed_document._session
     session2 = client2.transport.get_processed_document._session
     assert session1 != session2
+    session1 = client1.transport.batch_get_documents_metadata._session
+    session2 = client2.transport.batch_get_documents_metadata._session
+    assert session1 != session2
 
 
 def test_document_service_grpc_transport_channel():
diff --git a/packages/google-cloud-discoveryengine/tests/unit/gapic/discoveryengine_v1alpha/test_user_event_service.py b/packages/google-cloud-discoveryengine/tests/unit/gapic/discoveryengine_v1alpha/test_user_event_service.py
index b23c90ee838d..45144303f6e4 100644
--- a/packages/google-cloud-discoveryengine/tests/unit/gapic/discoveryengine_v1alpha/test_user_event_service.py
+++ b/packages/google-cloud-discoveryengine/tests/unit/gapic/discoveryengine_v1alpha/test_user_event_service.py
@@ -2455,6 +2455,7 @@ def test_write_user_event_rest(request_type):
                 "uri": "uri_value",
                 "quantity": 895,
                 "promotion_ids": ["promotion_ids_value1", "promotion_ids_value2"],
+                "joined": True,
             }
         ],
         "panel": {
diff --git a/packages/google-cloud-discoveryengine/tests/unit/gapic/discoveryengine_v1beta/test_document_service.py b/packages/google-cloud-discoveryengine/tests/unit/gapic/discoveryengine_v1beta/test_document_service.py
index 6ffa744aae25..9345701436e5 100644
--- a/packages/google-cloud-discoveryengine/tests/unit/gapic/discoveryengine_v1beta/test_document_service.py
+++ b/packages/google-cloud-discoveryengine/tests/unit/gapic/discoveryengine_v1beta/test_document_service.py
@@ -45,10 +45,12 @@
 from google.cloud.location import locations_pb2
 from google.longrunning import operations_pb2  # type: ignore
 from google.oauth2 import service_account
+from google.protobuf import any_pb2  # type: ignore
 from google.protobuf import field_mask_pb2  # type: ignore
 from google.protobuf import json_format
 from google.protobuf import struct_pb2  # type: ignore
 from google.protobuf import timestamp_pb2  # type: ignore
+from google.rpc import status_pb2  # type: ignore
 from google.type import date_pb2  # type: ignore
 import grpc
 from grpc.experimental import aio
@@ -3911,6 +3913,387 @@ async def test_purge_documents_field_headers_async():
     ) in kw["metadata"]
 
 
+@pytest.mark.parametrize(
+    "request_type",
+    [
+        document_service.BatchGetDocumentsMetadataRequest,
+        dict,
+    ],
+)
+def test_batch_get_documents_metadata(request_type, transport: str = "grpc"):
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport=transport,
+    )
+
+    # Everything is optional in proto3 as far as the runtime is concerned,
+    # and we are mocking out the actual API, so just send an empty request.
+    request = request_type()
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.batch_get_documents_metadata), "__call__"
+    ) as call:
+        # Designate an appropriate return value for the call.
+        call.return_value = document_service.BatchGetDocumentsMetadataResponse()
+        response = client.batch_get_documents_metadata(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert len(call.mock_calls) == 1
+        _, args, _ = call.mock_calls[0]
+        request = document_service.BatchGetDocumentsMetadataRequest()
+        assert args[0] == request
+
+    # Establish that the response is the type that we expect.
+    assert isinstance(response, document_service.BatchGetDocumentsMetadataResponse)
+
+
+def test_batch_get_documents_metadata_empty_call():
+    # This test is a coverage failsafe to make sure that totally empty calls,
+    # i.e. request == None and no flattened fields passed, work.
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="grpc",
+    )
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.batch_get_documents_metadata), "__call__"
+    ) as call:
+        call.return_value.name = (
+            "foo"  # operation_request.operation in compute client(s) expect a string.
+        )
+        client.batch_get_documents_metadata()
+        call.assert_called()
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == document_service.BatchGetDocumentsMetadataRequest()
+
+
+def test_batch_get_documents_metadata_non_empty_request_with_auto_populated_field():
+    # This test is a coverage failsafe to make sure that UUID4 fields are
+    # automatically populated, according to AIP-4235, with non-empty requests.
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="grpc",
+    )
+
+    # Populate all string fields in the request which are not UUID4
+    # since we want to check that UUID4 are populated automatically
+    # if they meet the requirements of AIP 4235.
+    request = document_service.BatchGetDocumentsMetadataRequest(
+        parent="parent_value",
+    )
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.batch_get_documents_metadata), "__call__"
+    ) as call:
+        call.return_value.name = (
+            "foo"  # operation_request.operation in compute client(s) expect a string.
+        )
+        client.batch_get_documents_metadata(request=request)
+        call.assert_called()
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == document_service.BatchGetDocumentsMetadataRequest(
+            parent="parent_value",
+        )
+
+
+def test_batch_get_documents_metadata_use_cached_wrapped_rpc():
+    # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
+    # instead of constructing them on each call
+    with mock.patch("google.api_core.gapic_v1.method.wrap_method") as wrapper_fn:
+        client = DocumentServiceClient(
+            credentials=ga_credentials.AnonymousCredentials(),
+            transport="grpc",
+        )
+
+        # Should wrap all calls on client creation
+        assert wrapper_fn.call_count > 0
+        wrapper_fn.reset_mock()
+
+        # Ensure method has been cached
+        assert (
+            client._transport.batch_get_documents_metadata
+            in client._transport._wrapped_methods
+        )
+
+        # Replace cached wrapped function with mock
+        mock_rpc = mock.Mock()
+        mock_rpc.return_value.name = (
+            "foo"  # operation_request.operation in compute client(s) expect a string.
+        )
+        client._transport._wrapped_methods[
+            client._transport.batch_get_documents_metadata
+        ] = mock_rpc
+        request = {}
+        client.batch_get_documents_metadata(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert mock_rpc.call_count == 1
+
+        client.batch_get_documents_metadata(request)
+
+        # Establish that a new wrapper was not created for this call
+        assert wrapper_fn.call_count == 0
+        assert mock_rpc.call_count == 2
+
+
+@pytest.mark.asyncio
+async def test_batch_get_documents_metadata_empty_call_async():
+    # This test is a coverage failsafe to make sure that totally empty calls,
+    # i.e. request == None and no flattened fields passed, work.
+    client = DocumentServiceAsyncClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="grpc_asyncio",
+    )
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.batch_get_documents_metadata), "__call__"
+    ) as call:
+        # Designate an appropriate return value for the call.
+        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
+            document_service.BatchGetDocumentsMetadataResponse()
+        )
+        response = await client.batch_get_documents_metadata()
+        call.assert_called()
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == document_service.BatchGetDocumentsMetadataRequest()
+
+
+@pytest.mark.asyncio
+async def test_batch_get_documents_metadata_async_use_cached_wrapped_rpc(
+    transport: str = "grpc_asyncio",
+):
+    # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
+    # instead of constructing them on each call
+    with mock.patch("google.api_core.gapic_v1.method_async.wrap_method") as wrapper_fn:
+        client = DocumentServiceAsyncClient(
+            credentials=ga_credentials.AnonymousCredentials(),
+            transport=transport,
+        )
+
+        # Should wrap all calls on client creation
+        assert wrapper_fn.call_count > 0
+        wrapper_fn.reset_mock()
+
+        # Ensure method has been cached
+        assert (
+            client._client._transport.batch_get_documents_metadata
+            in client._client._transport._wrapped_methods
+        )
+
+        # Replace cached wrapped function with mock
+        mock_rpc = mock.AsyncMock()
+        mock_rpc.return_value = mock.Mock()
+        client._client._transport._wrapped_methods[
+            client._client._transport.batch_get_documents_metadata
+        ] = mock_rpc
+
+        request = {}
+        await client.batch_get_documents_metadata(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert mock_rpc.call_count == 1
+
+        await client.batch_get_documents_metadata(request)
+
+        # Establish that a new wrapper was not created for this call
+        assert wrapper_fn.call_count == 0
+        assert mock_rpc.call_count == 2
+
+
+@pytest.mark.asyncio
+async def test_batch_get_documents_metadata_async(
+    transport: str = "grpc_asyncio",
+    request_type=document_service.BatchGetDocumentsMetadataRequest,
+):
+    client = DocumentServiceAsyncClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport=transport,
+    )
+
+    # Everything is optional in proto3 as far as the runtime is concerned,
+    # and we are mocking out the actual API, so just send an empty request.
+    request = request_type()
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.batch_get_documents_metadata), "__call__"
+    ) as call:
+        # Designate an appropriate return value for the call.
+        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
+            document_service.BatchGetDocumentsMetadataResponse()
+        )
+        response = await client.batch_get_documents_metadata(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert len(call.mock_calls)
+        _, args, _ = call.mock_calls[0]
+        request = document_service.BatchGetDocumentsMetadataRequest()
+        assert args[0] == request
+
+    # Establish that the response is the type that we expect.
+    assert isinstance(response, document_service.BatchGetDocumentsMetadataResponse)
+
+
+@pytest.mark.asyncio
+async def test_batch_get_documents_metadata_async_from_dict():
+    await test_batch_get_documents_metadata_async(request_type=dict)
+
+
+def test_batch_get_documents_metadata_field_headers():
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+
+    # Any value that is part of the HTTP/1.1 URI should be sent as
+    # a field header. Set these to a non-empty value.
+    request = document_service.BatchGetDocumentsMetadataRequest()
+
+    request.parent = "parent_value"
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.batch_get_documents_metadata), "__call__"
+    ) as call:
+        call.return_value = document_service.BatchGetDocumentsMetadataResponse()
+        client.batch_get_documents_metadata(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert len(call.mock_calls) == 1
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == request
+
+    # Establish that the field header was sent.
+    _, _, kw = call.mock_calls[0]
+    assert (
+        "x-goog-request-params",
+        "parent=parent_value",
+    ) in kw["metadata"]
+
+
+@pytest.mark.asyncio
+async def test_batch_get_documents_metadata_field_headers_async():
+    client = DocumentServiceAsyncClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+
+    # Any value that is part of the HTTP/1.1 URI should be sent as
+    # a field header. Set these to a non-empty value.
+    request = document_service.BatchGetDocumentsMetadataRequest()
+
+    request.parent = "parent_value"
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.batch_get_documents_metadata), "__call__"
+    ) as call:
+        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
+            document_service.BatchGetDocumentsMetadataResponse()
+        )
+        await client.batch_get_documents_metadata(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert len(call.mock_calls)
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == request
+
+    # Establish that the field header was sent.
+    _, _, kw = call.mock_calls[0]
+    assert (
+        "x-goog-request-params",
+        "parent=parent_value",
+    ) in kw["metadata"]
+
+
+def test_batch_get_documents_metadata_flattened():
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.batch_get_documents_metadata), "__call__"
+    ) as call:
+        # Designate an appropriate return value for the call.
+        call.return_value = document_service.BatchGetDocumentsMetadataResponse()
+        # Call the method with a truthy value for each flattened field,
+        # using the keyword arguments to the method.
+        client.batch_get_documents_metadata(
+            parent="parent_value",
+        )
+
+        # Establish that the underlying call was made with the expected
+        # request object values.
+        assert len(call.mock_calls) == 1
+        _, args, _ = call.mock_calls[0]
+        arg = args[0].parent
+        mock_val = "parent_value"
+        assert arg == mock_val
+
+
+def test_batch_get_documents_metadata_flattened_error():
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+
+    # Attempting to call a method with both a request object and flattened
+    # fields is an error.
+    with pytest.raises(ValueError):
+        client.batch_get_documents_metadata(
+            document_service.BatchGetDocumentsMetadataRequest(),
+            parent="parent_value",
+        )
+
+
+@pytest.mark.asyncio
+async def test_batch_get_documents_metadata_flattened_async():
+    client = DocumentServiceAsyncClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.batch_get_documents_metadata), "__call__"
+    ) as call:
+        # Designate an appropriate return value for the call.
+        call.return_value = document_service.BatchGetDocumentsMetadataResponse()
+
+        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
+            document_service.BatchGetDocumentsMetadataResponse()
+        )
+        # Call the method with a truthy value for each flattened field,
+        # using the keyword arguments to the method.
+        response = await client.batch_get_documents_metadata(
+            parent="parent_value",
+        )
+
+        # Establish that the underlying call was made with the expected
+        # request object values.
+        assert len(call.mock_calls)
+        _, args, _ = call.mock_calls[0]
+        arg = args[0].parent
+        mock_val = "parent_value"
+        assert arg == mock_val
+
+
+@pytest.mark.asyncio
+async def test_batch_get_documents_metadata_flattened_error_async():
+    client = DocumentServiceAsyncClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+
+    # Attempting to call a method with both a request object and flattened
+    # fields is an error.
+    with pytest.raises(ValueError):
+        await client.batch_get_documents_metadata(
+            document_service.BatchGetDocumentsMetadataRequest(),
+            parent="parent_value",
+        )
+
+
 @pytest.mark.parametrize(
     "request_type",
     [
@@ -3918,7 +4301,321 @@ async def test_purge_documents_field_headers_async():
         dict,
     ],
 )
-def test_get_document_rest(request_type):
+def test_get_document_rest(request_type):
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="rest",
+    )
+
+    # send a request that will satisfy transcoding
+    request_init = {
+        "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
+    }
+    request = request_type(**request_init)
+
+    # Mock the http request call within the method and fake a response.
+    with mock.patch.object(type(client.transport._session), "request") as req:
+        # Designate an appropriate value for the returned response.
+        return_value = document.Document(
+            name="name_value",
+            id="id_value",
+            schema_id="schema_id_value",
+            parent_document_id="parent_document_id_value",
+            json_data="json_data_value",
+        )
+
+        # Wrap the value into a proper Response obj
+        response_value = Response()
+        response_value.status_code = 200
+        # Convert return value to protobuf type
+        return_value = document.Document.pb(return_value)
+        json_return_value = json_format.MessageToJson(return_value)
+
+        response_value._content = json_return_value.encode("UTF-8")
+        req.return_value = response_value
+        response = client.get_document(request)
+
+    # Establish that the response is the type that we expect.
+    assert isinstance(response, document.Document)
+    assert response.name == "name_value"
+    assert response.id == "id_value"
+    assert response.schema_id == "schema_id_value"
+    assert response.parent_document_id == "parent_document_id_value"
+
+
+def test_get_document_rest_use_cached_wrapped_rpc():
+    # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
+    # instead of constructing them on each call
+    with mock.patch("google.api_core.gapic_v1.method.wrap_method") as wrapper_fn:
+        client = DocumentServiceClient(
+            credentials=ga_credentials.AnonymousCredentials(),
+            transport="rest",
+        )
+
+        # Should wrap all calls on client creation
+        assert wrapper_fn.call_count > 0
+        wrapper_fn.reset_mock()
+
+        # Ensure method has been cached
+        assert client._transport.get_document in client._transport._wrapped_methods
+
+        # Replace cached wrapped function with mock
+        mock_rpc = mock.Mock()
+        mock_rpc.return_value.name = (
+            "foo"  # operation_request.operation in compute client(s) expect a string.
+        )
+        client._transport._wrapped_methods[client._transport.get_document] = mock_rpc
+
+        request = {}
+        client.get_document(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert mock_rpc.call_count == 1
+
+        client.get_document(request)
+
+        # Establish that a new wrapper was not created for this call
+        assert wrapper_fn.call_count == 0
+        assert mock_rpc.call_count == 2
+
+
+def test_get_document_rest_required_fields(
+    request_type=document_service.GetDocumentRequest,
+):
+    transport_class = transports.DocumentServiceRestTransport
+
+    request_init = {}
+    request_init["name"] = ""
+    request = request_type(**request_init)
+    pb_request = request_type.pb(request)
+    jsonified_request = json.loads(
+        json_format.MessageToJson(pb_request, use_integers_for_enums=False)
+    )
+
+    # verify fields with default values are dropped
+
+    unset_fields = transport_class(
+        credentials=ga_credentials.AnonymousCredentials()
+    ).get_document._get_unset_required_fields(jsonified_request)
+    jsonified_request.update(unset_fields)
+
+    # verify required fields with default values are now present
+
+    jsonified_request["name"] = "name_value"
+
+    unset_fields = transport_class(
+        credentials=ga_credentials.AnonymousCredentials()
+    ).get_document._get_unset_required_fields(jsonified_request)
+    jsonified_request.update(unset_fields)
+
+    # verify required fields with non-default values are left alone
+    assert "name" in jsonified_request
+    assert jsonified_request["name"] == "name_value"
+
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="rest",
+    )
+    request = request_type(**request_init)
+
+    # Designate an appropriate value for the returned response.
+    return_value = document.Document()
+    # Mock the http request call within the method and fake a response.
+    with mock.patch.object(Session, "request") as req:
+        # We need to mock transcode() because providing default values
+        # for required fields will fail the real version if the http_options
+        # expect actual values for those fields.
+        with mock.patch.object(path_template, "transcode") as transcode:
+            # A uri without fields and an empty body will force all the
+            # request fields to show up in the query_params.
+            pb_request = request_type.pb(request)
+            transcode_result = {
+                "uri": "v1/sample_method",
+                "method": "get",
+                "query_params": pb_request,
+            }
+            transcode.return_value = transcode_result
+
+            response_value = Response()
+            response_value.status_code = 200
+
+            # Convert return value to protobuf type
+            return_value = document.Document.pb(return_value)
+            json_return_value = json_format.MessageToJson(return_value)
+
+            response_value._content = json_return_value.encode("UTF-8")
+            req.return_value = response_value
+
+            response = client.get_document(request)
+
+            expected_params = [("$alt", "json;enum-encoding=int")]
+            actual_params = req.call_args.kwargs["params"]
+            assert expected_params == actual_params
+
+
+def test_get_document_rest_unset_required_fields():
+    transport = transports.DocumentServiceRestTransport(
+        credentials=ga_credentials.AnonymousCredentials
+    )
+
+    unset_fields = transport.get_document._get_unset_required_fields({})
+    assert set(unset_fields) == (set(()) & set(("name",)))
+
+
+@pytest.mark.parametrize("null_interceptor", [True, False])
+def test_get_document_rest_interceptors(null_interceptor):
+    transport = transports.DocumentServiceRestTransport(
+        credentials=ga_credentials.AnonymousCredentials(),
+        interceptor=None
+        if null_interceptor
+        else transports.DocumentServiceRestInterceptor(),
+    )
+    client = DocumentServiceClient(transport=transport)
+    with mock.patch.object(
+        type(client.transport._session), "request"
+    ) as req, mock.patch.object(
+        path_template, "transcode"
+    ) as transcode, mock.patch.object(
+        transports.DocumentServiceRestInterceptor, "post_get_document"
+    ) as post, mock.patch.object(
+        transports.DocumentServiceRestInterceptor, "pre_get_document"
+    ) as pre:
+        pre.assert_not_called()
+        post.assert_not_called()
+        pb_message = document_service.GetDocumentRequest.pb(
+            document_service.GetDocumentRequest()
+        )
+        transcode.return_value = {
+            "method": "post",
+            "uri": "my_uri",
+            "body": pb_message,
+            "query_params": pb_message,
+        }
+
+        req.return_value = Response()
+        req.return_value.status_code = 200
+        req.return_value.request = PreparedRequest()
+        req.return_value._content = document.Document.to_json(document.Document())
+
+        request = document_service.GetDocumentRequest()
+        metadata = [
+            ("key", "val"),
+            ("cephalopod", "squid"),
+        ]
+        pre.return_value = request, metadata
+        post.return_value = document.Document()
+
+        client.get_document(
+            request,
+            metadata=[
+                ("key", "val"),
+                ("cephalopod", "squid"),
+            ],
+        )
+
+        pre.assert_called_once()
+        post.assert_called_once()
+
+
+def test_get_document_rest_bad_request(
+    transport: str = "rest", request_type=document_service.GetDocumentRequest
+):
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport=transport,
+    )
+
+    # send a request that will satisfy transcoding
+    request_init = {
+        "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
+    }
+    request = request_type(**request_init)
+
+    # Mock the http request call within the method and fake a BadRequest error.
+    with mock.patch.object(Session, "request") as req, pytest.raises(
+        core_exceptions.BadRequest
+    ):
+        # Wrap the value into a proper Response obj
+        response_value = Response()
+        response_value.status_code = 400
+        response_value.request = Request()
+        req.return_value = response_value
+        client.get_document(request)
+
+
+def test_get_document_rest_flattened():
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="rest",
+    )
+
+    # Mock the http request call within the method and fake a response.
+    with mock.patch.object(type(client.transport._session), "request") as req:
+        # Designate an appropriate value for the returned response.
+        return_value = document.Document()
+
+        # get arguments that satisfy an http rule for this method
+        sample_request = {
+            "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
+        }
+
+        # get truthy value for each flattened field
+        mock_args = dict(
+            name="name_value",
+        )
+        mock_args.update(sample_request)
+
+        # Wrap the value into a proper Response obj
+        response_value = Response()
+        response_value.status_code = 200
+        # Convert return value to protobuf type
+        return_value = document.Document.pb(return_value)
+        json_return_value = json_format.MessageToJson(return_value)
+        response_value._content = json_return_value.encode("UTF-8")
+        req.return_value = response_value
+
+        client.get_document(**mock_args)
+
+        # Establish that the underlying call was made with the expected
+        # request object values.
+        assert len(req.mock_calls) == 1
+        _, args, _ = req.mock_calls[0]
+        assert path_template.validate(
+            "%s/v1beta/{name=projects/*/locations/*/dataStores/*/branches/*/documents/*}"
+            % client.transport._host,
+            args[1],
+        )
+
+
+def test_get_document_rest_flattened_error(transport: str = "rest"):
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport=transport,
+    )
+
+    # Attempting to call a method with both a request object and flattened
+    # fields is an error.
+    with pytest.raises(ValueError):
+        client.get_document(
+            document_service.GetDocumentRequest(),
+            name="name_value",
+        )
+
+
+def test_get_document_rest_error():
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(), transport="rest"
+    )
+
+
+@pytest.mark.parametrize(
+    "request_type",
+    [
+        document_service.ListDocumentsRequest,
+        dict,
+    ],
+)
+def test_list_documents_rest(request_type):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
         transport="rest",
@@ -3926,41 +4623,34 @@ def test_get_document_rest(request_type):
 
     # send a request that will satisfy transcoding
     request_init = {
-        "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
+        "parent": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4"
     }
     request = request_type(**request_init)
 
     # Mock the http request call within the method and fake a response.
     with mock.patch.object(type(client.transport._session), "request") as req:
         # Designate an appropriate value for the returned response.
-        return_value = document.Document(
-            name="name_value",
-            id="id_value",
-            schema_id="schema_id_value",
-            parent_document_id="parent_document_id_value",
-            json_data="json_data_value",
+        return_value = document_service.ListDocumentsResponse(
+            next_page_token="next_page_token_value",
         )
 
         # Wrap the value into a proper Response obj
         response_value = Response()
         response_value.status_code = 200
         # Convert return value to protobuf type
-        return_value = document.Document.pb(return_value)
+        return_value = document_service.ListDocumentsResponse.pb(return_value)
         json_return_value = json_format.MessageToJson(return_value)
 
         response_value._content = json_return_value.encode("UTF-8")
         req.return_value = response_value
-        response = client.get_document(request)
+        response = client.list_documents(request)
 
     # Establish that the response is the type that we expect.
-    assert isinstance(response, document.Document)
-    assert response.name == "name_value"
-    assert response.id == "id_value"
-    assert response.schema_id == "schema_id_value"
-    assert response.parent_document_id == "parent_document_id_value"
+    assert isinstance(response, pagers.ListDocumentsPager)
+    assert response.next_page_token == "next_page_token_value"
 
 
-def test_get_document_rest_use_cached_wrapped_rpc():
+def test_list_documents_rest_use_cached_wrapped_rpc():
     # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
     # instead of constructing them on each call
     with mock.patch("google.api_core.gapic_v1.method.wrap_method") as wrapper_fn:
@@ -3974,35 +4664,35 @@ def test_get_document_rest_use_cached_wrapped_rpc():
         wrapper_fn.reset_mock()
 
         # Ensure method has been cached
-        assert client._transport.get_document in client._transport._wrapped_methods
+        assert client._transport.list_documents in client._transport._wrapped_methods
 
         # Replace cached wrapped function with mock
         mock_rpc = mock.Mock()
         mock_rpc.return_value.name = (
             "foo"  # operation_request.operation in compute client(s) expect a string.
         )
-        client._transport._wrapped_methods[client._transport.get_document] = mock_rpc
+        client._transport._wrapped_methods[client._transport.list_documents] = mock_rpc
 
         request = {}
-        client.get_document(request)
+        client.list_documents(request)
 
         # Establish that the underlying gRPC stub method was called.
         assert mock_rpc.call_count == 1
 
-        client.get_document(request)
+        client.list_documents(request)
 
         # Establish that a new wrapper was not created for this call
         assert wrapper_fn.call_count == 0
         assert mock_rpc.call_count == 2
 
 
-def test_get_document_rest_required_fields(
-    request_type=document_service.GetDocumentRequest,
+def test_list_documents_rest_required_fields(
+    request_type=document_service.ListDocumentsRequest,
 ):
     transport_class = transports.DocumentServiceRestTransport
 
     request_init = {}
-    request_init["name"] = ""
+    request_init["parent"] = ""
     request = request_type(**request_init)
     pb_request = request_type.pb(request)
     jsonified_request = json.loads(
@@ -4013,21 +4703,28 @@ def test_get_document_rest_required_fields(
 
     unset_fields = transport_class(
         credentials=ga_credentials.AnonymousCredentials()
-    ).get_document._get_unset_required_fields(jsonified_request)
+    ).list_documents._get_unset_required_fields(jsonified_request)
     jsonified_request.update(unset_fields)
 
     # verify required fields with default values are now present
 
-    jsonified_request["name"] = "name_value"
+    jsonified_request["parent"] = "parent_value"
 
     unset_fields = transport_class(
         credentials=ga_credentials.AnonymousCredentials()
-    ).get_document._get_unset_required_fields(jsonified_request)
+    ).list_documents._get_unset_required_fields(jsonified_request)
+    # Check that path parameters and body parameters are not mixing in.
+    assert not set(unset_fields) - set(
+        (
+            "page_size",
+            "page_token",
+        )
+    )
     jsonified_request.update(unset_fields)
 
     # verify required fields with non-default values are left alone
-    assert "name" in jsonified_request
-    assert jsonified_request["name"] == "name_value"
+    assert "parent" in jsonified_request
+    assert jsonified_request["parent"] == "parent_value"
 
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
@@ -4036,7 +4733,7 @@ def test_get_document_rest_required_fields(
     request = request_type(**request_init)
 
     # Designate an appropriate value for the returned response.
-    return_value = document.Document()
+    return_value = document_service.ListDocumentsResponse()
     # Mock the http request call within the method and fake a response.
     with mock.patch.object(Session, "request") as req:
         # We need to mock transcode() because providing default values
@@ -4057,30 +4754,38 @@ def test_get_document_rest_required_fields(
             response_value.status_code = 200
 
             # Convert return value to protobuf type
-            return_value = document.Document.pb(return_value)
+            return_value = document_service.ListDocumentsResponse.pb(return_value)
             json_return_value = json_format.MessageToJson(return_value)
 
             response_value._content = json_return_value.encode("UTF-8")
             req.return_value = response_value
 
-            response = client.get_document(request)
+            response = client.list_documents(request)
 
             expected_params = [("$alt", "json;enum-encoding=int")]
             actual_params = req.call_args.kwargs["params"]
             assert expected_params == actual_params
 
 
-def test_get_document_rest_unset_required_fields():
+def test_list_documents_rest_unset_required_fields():
     transport = transports.DocumentServiceRestTransport(
         credentials=ga_credentials.AnonymousCredentials
     )
 
-    unset_fields = transport.get_document._get_unset_required_fields({})
-    assert set(unset_fields) == (set(()) & set(("name",)))
+    unset_fields = transport.list_documents._get_unset_required_fields({})
+    assert set(unset_fields) == (
+        set(
+            (
+                "pageSize",
+                "pageToken",
+            )
+        )
+        & set(("parent",))
+    )
 
 
 @pytest.mark.parametrize("null_interceptor", [True, False])
-def test_get_document_rest_interceptors(null_interceptor):
+def test_list_documents_rest_interceptors(null_interceptor):
     transport = transports.DocumentServiceRestTransport(
         credentials=ga_credentials.AnonymousCredentials(),
         interceptor=None
@@ -4093,14 +4798,14 @@ def test_get_document_rest_interceptors(null_interceptor):
     ) as req, mock.patch.object(
         path_template, "transcode"
     ) as transcode, mock.patch.object(
-        transports.DocumentServiceRestInterceptor, "post_get_document"
+        transports.DocumentServiceRestInterceptor, "post_list_documents"
     ) as post, mock.patch.object(
-        transports.DocumentServiceRestInterceptor, "pre_get_document"
+        transports.DocumentServiceRestInterceptor, "pre_list_documents"
     ) as pre:
         pre.assert_not_called()
         post.assert_not_called()
-        pb_message = document_service.GetDocumentRequest.pb(
-            document_service.GetDocumentRequest()
+        pb_message = document_service.ListDocumentsRequest.pb(
+            document_service.ListDocumentsRequest()
         )
         transcode.return_value = {
             "method": "post",
@@ -4112,17 +4817,19 @@ def test_get_document_rest_interceptors(null_interceptor):
         req.return_value = Response()
         req.return_value.status_code = 200
         req.return_value.request = PreparedRequest()
-        req.return_value._content = document.Document.to_json(document.Document())
+        req.return_value._content = document_service.ListDocumentsResponse.to_json(
+            document_service.ListDocumentsResponse()
+        )
 
-        request = document_service.GetDocumentRequest()
+        request = document_service.ListDocumentsRequest()
         metadata = [
             ("key", "val"),
             ("cephalopod", "squid"),
         ]
         pre.return_value = request, metadata
-        post.return_value = document.Document()
+        post.return_value = document_service.ListDocumentsResponse()
 
-        client.get_document(
+        client.list_documents(
             request,
             metadata=[
                 ("key", "val"),
@@ -4134,8 +4841,8 @@ def test_get_document_rest_interceptors(null_interceptor):
         post.assert_called_once()
 
 
-def test_get_document_rest_bad_request(
-    transport: str = "rest", request_type=document_service.GetDocumentRequest
+def test_list_documents_rest_bad_request(
+    transport: str = "rest", request_type=document_service.ListDocumentsRequest
 ):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
@@ -4144,7 +4851,7 @@ def test_get_document_rest_bad_request(
 
     # send a request that will satisfy transcoding
     request_init = {
-        "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
+        "parent": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4"
     }
     request = request_type(**request_init)
 
@@ -4157,10 +4864,10 @@ def test_get_document_rest_bad_request(
         response_value.status_code = 400
         response_value.request = Request()
         req.return_value = response_value
-        client.get_document(request)
+        client.list_documents(request)
 
 
-def test_get_document_rest_flattened():
+def test_list_documents_rest_flattened():
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
         transport="rest",
@@ -4169,16 +4876,16 @@ def test_get_document_rest_flattened():
     # Mock the http request call within the method and fake a response.
     with mock.patch.object(type(client.transport._session), "request") as req:
         # Designate an appropriate value for the returned response.
-        return_value = document.Document()
+        return_value = document_service.ListDocumentsResponse()
 
         # get arguments that satisfy an http rule for this method
         sample_request = {
-            "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
+            "parent": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4"
         }
 
         # get truthy value for each flattened field
         mock_args = dict(
-            name="name_value",
+            parent="parent_value",
         )
         mock_args.update(sample_request)
 
@@ -4186,25 +4893,25 @@ def test_get_document_rest_flattened():
         response_value = Response()
         response_value.status_code = 200
         # Convert return value to protobuf type
-        return_value = document.Document.pb(return_value)
+        return_value = document_service.ListDocumentsResponse.pb(return_value)
         json_return_value = json_format.MessageToJson(return_value)
         response_value._content = json_return_value.encode("UTF-8")
         req.return_value = response_value
 
-        client.get_document(**mock_args)
+        client.list_documents(**mock_args)
 
         # Establish that the underlying call was made with the expected
         # request object values.
         assert len(req.mock_calls) == 1
         _, args, _ = req.mock_calls[0]
         assert path_template.validate(
-            "%s/v1beta/{name=projects/*/locations/*/dataStores/*/branches/*/documents/*}"
+            "%s/v1beta/{parent=projects/*/locations/*/dataStores/*/branches/*}/documents"
             % client.transport._host,
             args[1],
         )
 
 
-def test_get_document_rest_flattened_error(transport: str = "rest"):
+def test_list_documents_rest_flattened_error(transport: str = "rest"):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
         transport=transport,
@@ -4213,61 +4920,224 @@ def test_get_document_rest_flattened_error(transport: str = "rest"):
     # Attempting to call a method with both a request object and flattened
     # fields is an error.
     with pytest.raises(ValueError):
-        client.get_document(
-            document_service.GetDocumentRequest(),
-            name="name_value",
+        client.list_documents(
+            document_service.ListDocumentsRequest(),
+            parent="parent_value",
+        )
+
+
+def test_list_documents_rest_pager(transport: str = "rest"):
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport=transport,
+    )
+
+    # Mock the http request call within the method and fake a response.
+    with mock.patch.object(Session, "request") as req:
+        # TODO(kbandes): remove this mock unless there's a good reason for it.
+        # with mock.patch.object(path_template, 'transcode') as transcode:
+        # Set the response as a series of pages
+        response = (
+            document_service.ListDocumentsResponse(
+                documents=[
+                    document.Document(),
+                    document.Document(),
+                    document.Document(),
+                ],
+                next_page_token="abc",
+            ),
+            document_service.ListDocumentsResponse(
+                documents=[],
+                next_page_token="def",
+            ),
+            document_service.ListDocumentsResponse(
+                documents=[
+                    document.Document(),
+                ],
+                next_page_token="ghi",
+            ),
+            document_service.ListDocumentsResponse(
+                documents=[
+                    document.Document(),
+                    document.Document(),
+                ],
+            ),
+        )
+        # Two responses for two calls
+        response = response + response
+
+        # Wrap the values into proper Response objs
+        response = tuple(
+            document_service.ListDocumentsResponse.to_json(x) for x in response
         )
+        return_values = tuple(Response() for i in response)
+        for return_val, response_val in zip(return_values, response):
+            return_val._content = response_val.encode("UTF-8")
+            return_val.status_code = 200
+        req.side_effect = return_values
+
+        sample_request = {
+            "parent": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4"
+        }
+
+        pager = client.list_documents(request=sample_request)
+
+        results = list(pager)
+        assert len(results) == 6
+        assert all(isinstance(i, document.Document) for i in results)
+
+        pages = list(client.list_documents(request=sample_request).pages)
+        for page_, token in zip(pages, ["abc", "def", "ghi", ""]):
+            assert page_.raw_page.next_page_token == token
+
+
+@pytest.mark.parametrize(
+    "request_type",
+    [
+        document_service.CreateDocumentRequest,
+        dict,
+    ],
+)
+def test_create_document_rest(request_type):
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="rest",
+    )
+
+    # send a request that will satisfy transcoding
+    request_init = {
+        "parent": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4"
+    }
+    request_init["document"] = {
+        "struct_data": {"fields": {}},
+        "json_data": "json_data_value",
+        "name": "name_value",
+        "id": "id_value",
+        "schema_id": "schema_id_value",
+        "content": {
+            "raw_bytes": b"raw_bytes_blob",
+            "uri": "uri_value",
+            "mime_type": "mime_type_value",
+        },
+        "parent_document_id": "parent_document_id_value",
+        "derived_struct_data": {},
+        "index_time": {"seconds": 751, "nanos": 543},
+        "index_status": {
+            "index_time": {},
+            "error_samples": [
+                {
+                    "code": 411,
+                    "message": "message_value",
+                    "details": [
+                        {
+                            "type_url": "type.googleapis.com/google.protobuf.Duration",
+                            "value": b"\x08\x0c\x10\xdb\x07",
+                        }
+                    ],
+                }
+            ],
+        },
+    }
+    # The version of a generated dependency at test runtime may differ from the version used during generation.
+    # Delete any fields which are not present in the current runtime dependency
+    # See https://github.com/googleapis/gapic-generator-python/issues/1748
+
+    # Determine if the message type is proto-plus or protobuf
+    test_field = document_service.CreateDocumentRequest.meta.fields["document"]
+
+    def get_message_fields(field):
+        # Given a field which is a message (composite type), return a list with
+        # all the fields of the message.
+        # If the field is not a composite type, return an empty list.
+        message_fields = []
+
+        if hasattr(field, "message") and field.message:
+            is_field_type_proto_plus_type = not hasattr(field.message, "DESCRIPTOR")
+
+            if is_field_type_proto_plus_type:
+                message_fields = field.message.meta.fields.values()
+            # Add `# pragma: NO COVER` because there may not be any `*_pb2` field types
+            else:  # pragma: NO COVER
+                message_fields = field.message.DESCRIPTOR.fields
+        return message_fields
 
+    runtime_nested_fields = [
+        (field.name, nested_field.name)
+        for field in get_message_fields(test_field)
+        for nested_field in get_message_fields(field)
+    ]
 
-def test_get_document_rest_error():
-    client = DocumentServiceClient(
-        credentials=ga_credentials.AnonymousCredentials(), transport="rest"
-    )
+    subfields_not_in_runtime = []
 
+    # For each item in the sample request, create a list of sub fields which are not present at runtime
+    # Add `# pragma: NO COVER` because this test code will not run if all subfields are present at runtime
+    for field, value in request_init["document"].items():  # pragma: NO COVER
+        result = None
+        is_repeated = False
+        # For repeated fields
+        if isinstance(value, list) and len(value):
+            is_repeated = True
+            result = value[0]
+        # For fields where the type is another message
+        if isinstance(value, dict):
+            result = value
 
-@pytest.mark.parametrize(
-    "request_type",
-    [
-        document_service.ListDocumentsRequest,
-        dict,
-    ],
-)
-def test_list_documents_rest(request_type):
-    client = DocumentServiceClient(
-        credentials=ga_credentials.AnonymousCredentials(),
-        transport="rest",
-    )
+        if result and hasattr(result, "keys"):
+            for subfield in result.keys():
+                if (field, subfield) not in runtime_nested_fields:
+                    subfields_not_in_runtime.append(
+                        {
+                            "field": field,
+                            "subfield": subfield,
+                            "is_repeated": is_repeated,
+                        }
+                    )
 
-    # send a request that will satisfy transcoding
-    request_init = {
-        "parent": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4"
-    }
+    # Remove fields from the sample request which are not present in the runtime version of the dependency
+    # Add `# pragma: NO COVER` because this test code will not run if all subfields are present at runtime
+    for subfield_to_delete in subfields_not_in_runtime:  # pragma: NO COVER
+        field = subfield_to_delete.get("field")
+        field_repeated = subfield_to_delete.get("is_repeated")
+        subfield = subfield_to_delete.get("subfield")
+        if subfield:
+            if field_repeated:
+                for i in range(0, len(request_init["document"][field])):
+                    del request_init["document"][field][i][subfield]
+            else:
+                del request_init["document"][field][subfield]
     request = request_type(**request_init)
 
     # Mock the http request call within the method and fake a response.
     with mock.patch.object(type(client.transport._session), "request") as req:
         # Designate an appropriate value for the returned response.
-        return_value = document_service.ListDocumentsResponse(
-            next_page_token="next_page_token_value",
+        return_value = gcd_document.Document(
+            name="name_value",
+            id="id_value",
+            schema_id="schema_id_value",
+            parent_document_id="parent_document_id_value",
+            json_data="json_data_value",
         )
 
         # Wrap the value into a proper Response obj
         response_value = Response()
         response_value.status_code = 200
         # Convert return value to protobuf type
-        return_value = document_service.ListDocumentsResponse.pb(return_value)
+        return_value = gcd_document.Document.pb(return_value)
         json_return_value = json_format.MessageToJson(return_value)
 
         response_value._content = json_return_value.encode("UTF-8")
         req.return_value = response_value
-        response = client.list_documents(request)
+        response = client.create_document(request)
 
     # Establish that the response is the type that we expect.
-    assert isinstance(response, pagers.ListDocumentsPager)
-    assert response.next_page_token == "next_page_token_value"
+    assert isinstance(response, gcd_document.Document)
+    assert response.name == "name_value"
+    assert response.id == "id_value"
+    assert response.schema_id == "schema_id_value"
+    assert response.parent_document_id == "parent_document_id_value"
 
 
-def test_list_documents_rest_use_cached_wrapped_rpc():
+def test_create_document_rest_use_cached_wrapped_rpc():
     # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
     # instead of constructing them on each call
     with mock.patch("google.api_core.gapic_v1.method.wrap_method") as wrapper_fn:
@@ -4281,35 +5151,36 @@ def test_list_documents_rest_use_cached_wrapped_rpc():
         wrapper_fn.reset_mock()
 
         # Ensure method has been cached
-        assert client._transport.list_documents in client._transport._wrapped_methods
+        assert client._transport.create_document in client._transport._wrapped_methods
 
         # Replace cached wrapped function with mock
         mock_rpc = mock.Mock()
         mock_rpc.return_value.name = (
             "foo"  # operation_request.operation in compute client(s) expect a string.
         )
-        client._transport._wrapped_methods[client._transport.list_documents] = mock_rpc
+        client._transport._wrapped_methods[client._transport.create_document] = mock_rpc
 
         request = {}
-        client.list_documents(request)
+        client.create_document(request)
 
         # Establish that the underlying gRPC stub method was called.
         assert mock_rpc.call_count == 1
 
-        client.list_documents(request)
+        client.create_document(request)
 
         # Establish that a new wrapper was not created for this call
         assert wrapper_fn.call_count == 0
         assert mock_rpc.call_count == 2
 
 
-def test_list_documents_rest_required_fields(
-    request_type=document_service.ListDocumentsRequest,
+def test_create_document_rest_required_fields(
+    request_type=document_service.CreateDocumentRequest,
 ):
     transport_class = transports.DocumentServiceRestTransport
 
     request_init = {}
     request_init["parent"] = ""
+    request_init["document_id"] = ""
     request = request_type(**request_init)
     pb_request = request_type.pb(request)
     jsonified_request = json.loads(
@@ -4317,31 +5188,32 @@ def test_list_documents_rest_required_fields(
     )
 
     # verify fields with default values are dropped
+    assert "documentId" not in jsonified_request
 
     unset_fields = transport_class(
         credentials=ga_credentials.AnonymousCredentials()
-    ).list_documents._get_unset_required_fields(jsonified_request)
+    ).create_document._get_unset_required_fields(jsonified_request)
     jsonified_request.update(unset_fields)
 
     # verify required fields with default values are now present
+    assert "documentId" in jsonified_request
+    assert jsonified_request["documentId"] == request_init["document_id"]
 
     jsonified_request["parent"] = "parent_value"
+    jsonified_request["documentId"] = "document_id_value"
 
     unset_fields = transport_class(
         credentials=ga_credentials.AnonymousCredentials()
-    ).list_documents._get_unset_required_fields(jsonified_request)
+    ).create_document._get_unset_required_fields(jsonified_request)
     # Check that path parameters and body parameters are not mixing in.
-    assert not set(unset_fields) - set(
-        (
-            "page_size",
-            "page_token",
-        )
-    )
+    assert not set(unset_fields) - set(("document_id",))
     jsonified_request.update(unset_fields)
 
     # verify required fields with non-default values are left alone
     assert "parent" in jsonified_request
     assert jsonified_request["parent"] == "parent_value"
+    assert "documentId" in jsonified_request
+    assert jsonified_request["documentId"] == "document_id_value"
 
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
@@ -4350,7 +5222,7 @@ def test_list_documents_rest_required_fields(
     request = request_type(**request_init)
 
     # Designate an appropriate value for the returned response.
-    return_value = document_service.ListDocumentsResponse()
+    return_value = gcd_document.Document()
     # Mock the http request call within the method and fake a response.
     with mock.patch.object(Session, "request") as req:
         # We need to mock transcode() because providing default values
@@ -4362,47 +5234,55 @@ def test_list_documents_rest_required_fields(
             pb_request = request_type.pb(request)
             transcode_result = {
                 "uri": "v1/sample_method",
-                "method": "get",
+                "method": "post",
                 "query_params": pb_request,
             }
+            transcode_result["body"] = pb_request
             transcode.return_value = transcode_result
 
             response_value = Response()
             response_value.status_code = 200
 
             # Convert return value to protobuf type
-            return_value = document_service.ListDocumentsResponse.pb(return_value)
+            return_value = gcd_document.Document.pb(return_value)
             json_return_value = json_format.MessageToJson(return_value)
 
             response_value._content = json_return_value.encode("UTF-8")
             req.return_value = response_value
 
-            response = client.list_documents(request)
+            response = client.create_document(request)
 
-            expected_params = [("$alt", "json;enum-encoding=int")]
+            expected_params = [
+                (
+                    "documentId",
+                    "",
+                ),
+                ("$alt", "json;enum-encoding=int"),
+            ]
             actual_params = req.call_args.kwargs["params"]
             assert expected_params == actual_params
 
 
-def test_list_documents_rest_unset_required_fields():
+def test_create_document_rest_unset_required_fields():
     transport = transports.DocumentServiceRestTransport(
         credentials=ga_credentials.AnonymousCredentials
     )
 
-    unset_fields = transport.list_documents._get_unset_required_fields({})
+    unset_fields = transport.create_document._get_unset_required_fields({})
     assert set(unset_fields) == (
-        set(
+        set(("documentId",))
+        & set(
             (
-                "pageSize",
-                "pageToken",
+                "parent",
+                "document",
+                "documentId",
             )
         )
-        & set(("parent",))
     )
 
 
 @pytest.mark.parametrize("null_interceptor", [True, False])
-def test_list_documents_rest_interceptors(null_interceptor):
+def test_create_document_rest_interceptors(null_interceptor):
     transport = transports.DocumentServiceRestTransport(
         credentials=ga_credentials.AnonymousCredentials(),
         interceptor=None
@@ -4415,14 +5295,14 @@ def test_list_documents_rest_interceptors(null_interceptor):
     ) as req, mock.patch.object(
         path_template, "transcode"
     ) as transcode, mock.patch.object(
-        transports.DocumentServiceRestInterceptor, "post_list_documents"
+        transports.DocumentServiceRestInterceptor, "post_create_document"
     ) as post, mock.patch.object(
-        transports.DocumentServiceRestInterceptor, "pre_list_documents"
+        transports.DocumentServiceRestInterceptor, "pre_create_document"
     ) as pre:
         pre.assert_not_called()
         post.assert_not_called()
-        pb_message = document_service.ListDocumentsRequest.pb(
-            document_service.ListDocumentsRequest()
+        pb_message = document_service.CreateDocumentRequest.pb(
+            document_service.CreateDocumentRequest()
         )
         transcode.return_value = {
             "method": "post",
@@ -4434,19 +5314,19 @@ def test_list_documents_rest_interceptors(null_interceptor):
         req.return_value = Response()
         req.return_value.status_code = 200
         req.return_value.request = PreparedRequest()
-        req.return_value._content = document_service.ListDocumentsResponse.to_json(
-            document_service.ListDocumentsResponse()
+        req.return_value._content = gcd_document.Document.to_json(
+            gcd_document.Document()
         )
 
-        request = document_service.ListDocumentsRequest()
+        request = document_service.CreateDocumentRequest()
         metadata = [
             ("key", "val"),
             ("cephalopod", "squid"),
         ]
         pre.return_value = request, metadata
-        post.return_value = document_service.ListDocumentsResponse()
+        post.return_value = gcd_document.Document()
 
-        client.list_documents(
+        client.create_document(
             request,
             metadata=[
                 ("key", "val"),
@@ -4458,8 +5338,8 @@ def test_list_documents_rest_interceptors(null_interceptor):
         post.assert_called_once()
 
 
-def test_list_documents_rest_bad_request(
-    transport: str = "rest", request_type=document_service.ListDocumentsRequest
+def test_create_document_rest_bad_request(
+    transport: str = "rest", request_type=document_service.CreateDocumentRequest
 ):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
@@ -4481,10 +5361,10 @@ def test_list_documents_rest_bad_request(
         response_value.status_code = 400
         response_value.request = Request()
         req.return_value = response_value
-        client.list_documents(request)
+        client.create_document(request)
 
 
-def test_list_documents_rest_flattened():
+def test_create_document_rest_flattened():
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
         transport="rest",
@@ -4493,7 +5373,7 @@ def test_list_documents_rest_flattened():
     # Mock the http request call within the method and fake a response.
     with mock.patch.object(type(client.transport._session), "request") as req:
         # Designate an appropriate value for the returned response.
-        return_value = document_service.ListDocumentsResponse()
+        return_value = gcd_document.Document()
 
         # get arguments that satisfy an http rule for this method
         sample_request = {
@@ -4503,6 +5383,16 @@ def test_list_documents_rest_flattened():
         # get truthy value for each flattened field
         mock_args = dict(
             parent="parent_value",
+            document=gcd_document.Document(
+                struct_data=struct_pb2.Struct(
+                    fields={
+                        "key_value": struct_pb2.Value(
+                            null_value=struct_pb2.NullValue.NULL_VALUE
+                        )
+                    }
+                )
+            ),
+            document_id="document_id_value",
         )
         mock_args.update(sample_request)
 
@@ -4510,12 +5400,12 @@ def test_list_documents_rest_flattened():
         response_value = Response()
         response_value.status_code = 200
         # Convert return value to protobuf type
-        return_value = document_service.ListDocumentsResponse.pb(return_value)
+        return_value = gcd_document.Document.pb(return_value)
         json_return_value = json_format.MessageToJson(return_value)
         response_value._content = json_return_value.encode("UTF-8")
         req.return_value = response_value
 
-        client.list_documents(**mock_args)
+        client.create_document(**mock_args)
 
         # Establish that the underlying call was made with the expected
         # request object values.
@@ -4528,94 +5418,45 @@ def test_list_documents_rest_flattened():
         )
 
 
-def test_list_documents_rest_flattened_error(transport: str = "rest"):
-    client = DocumentServiceClient(
-        credentials=ga_credentials.AnonymousCredentials(),
-        transport=transport,
-    )
-
-    # Attempting to call a method with both a request object and flattened
-    # fields is an error.
-    with pytest.raises(ValueError):
-        client.list_documents(
-            document_service.ListDocumentsRequest(),
-            parent="parent_value",
-        )
-
-
-def test_list_documents_rest_pager(transport: str = "rest"):
-    client = DocumentServiceClient(
-        credentials=ga_credentials.AnonymousCredentials(),
-        transport=transport,
-    )
-
-    # Mock the http request call within the method and fake a response.
-    with mock.patch.object(Session, "request") as req:
-        # TODO(kbandes): remove this mock unless there's a good reason for it.
-        # with mock.patch.object(path_template, 'transcode') as transcode:
-        # Set the response as a series of pages
-        response = (
-            document_service.ListDocumentsResponse(
-                documents=[
-                    document.Document(),
-                    document.Document(),
-                    document.Document(),
-                ],
-                next_page_token="abc",
-            ),
-            document_service.ListDocumentsResponse(
-                documents=[],
-                next_page_token="def",
-            ),
-            document_service.ListDocumentsResponse(
-                documents=[
-                    document.Document(),
-                ],
-                next_page_token="ghi",
-            ),
-            document_service.ListDocumentsResponse(
-                documents=[
-                    document.Document(),
-                    document.Document(),
-                ],
-            ),
-        )
-        # Two responses for two calls
-        response = response + response
-
-        # Wrap the values into proper Response objs
-        response = tuple(
-            document_service.ListDocumentsResponse.to_json(x) for x in response
-        )
-        return_values = tuple(Response() for i in response)
-        for return_val, response_val in zip(return_values, response):
-            return_val._content = response_val.encode("UTF-8")
-            return_val.status_code = 200
-        req.side_effect = return_values
-
-        sample_request = {
-            "parent": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4"
-        }
+def test_create_document_rest_flattened_error(transport: str = "rest"):
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport=transport,
+    )
 
-        pager = client.list_documents(request=sample_request)
+    # Attempting to call a method with both a request object and flattened
+    # fields is an error.
+    with pytest.raises(ValueError):
+        client.create_document(
+            document_service.CreateDocumentRequest(),
+            parent="parent_value",
+            document=gcd_document.Document(
+                struct_data=struct_pb2.Struct(
+                    fields={
+                        "key_value": struct_pb2.Value(
+                            null_value=struct_pb2.NullValue.NULL_VALUE
+                        )
+                    }
+                )
+            ),
+            document_id="document_id_value",
+        )
 
-        results = list(pager)
-        assert len(results) == 6
-        assert all(isinstance(i, document.Document) for i in results)
 
-        pages = list(client.list_documents(request=sample_request).pages)
-        for page_, token in zip(pages, ["abc", "def", "ghi", ""]):
-            assert page_.raw_page.next_page_token == token
+def test_create_document_rest_error():
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(), transport="rest"
+    )
 
 
 @pytest.mark.parametrize(
     "request_type",
     [
-        document_service.CreateDocumentRequest,
+        document_service.UpdateDocumentRequest,
         dict,
     ],
 )
-def test_create_document_rest(request_type):
+def test_update_document_rest(request_type):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
         transport="rest",
@@ -4623,12 +5464,14 @@ def test_create_document_rest(request_type):
 
     # send a request that will satisfy transcoding
     request_init = {
-        "parent": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4"
+        "document": {
+            "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
+        }
     }
     request_init["document"] = {
         "struct_data": {"fields": {}},
         "json_data": "json_data_value",
-        "name": "name_value",
+        "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5",
         "id": "id_value",
         "schema_id": "schema_id_value",
         "content": {
@@ -4639,13 +5482,28 @@ def test_create_document_rest(request_type):
         "parent_document_id": "parent_document_id_value",
         "derived_struct_data": {},
         "index_time": {"seconds": 751, "nanos": 543},
+        "index_status": {
+            "index_time": {},
+            "error_samples": [
+                {
+                    "code": 411,
+                    "message": "message_value",
+                    "details": [
+                        {
+                            "type_url": "type.googleapis.com/google.protobuf.Duration",
+                            "value": b"\x08\x0c\x10\xdb\x07",
+                        }
+                    ],
+                }
+            ],
+        },
     }
     # The version of a generated dependency at test runtime may differ from the version used during generation.
     # Delete any fields which are not present in the current runtime dependency
     # See https://github.com/googleapis/gapic-generator-python/issues/1748
 
     # Determine if the message type is proto-plus or protobuf
-    test_field = document_service.CreateDocumentRequest.meta.fields["document"]
+    test_field = document_service.UpdateDocumentRequest.meta.fields["document"]
 
     def get_message_fields(field):
         # Given a field which is a message (composite type), return a list with
@@ -4729,7 +5587,7 @@ def get_message_fields(field):
 
         response_value._content = json_return_value.encode("UTF-8")
         req.return_value = response_value
-        response = client.create_document(request)
+        response = client.update_document(request)
 
     # Establish that the response is the type that we expect.
     assert isinstance(response, gcd_document.Document)
@@ -4739,7 +5597,7 @@ def get_message_fields(field):
     assert response.parent_document_id == "parent_document_id_value"
 
 
-def test_create_document_rest_use_cached_wrapped_rpc():
+def test_update_document_rest_use_cached_wrapped_rpc():
     # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
     # instead of constructing them on each call
     with mock.patch("google.api_core.gapic_v1.method.wrap_method") as wrapper_fn:
@@ -4753,36 +5611,34 @@ def test_create_document_rest_use_cached_wrapped_rpc():
         wrapper_fn.reset_mock()
 
         # Ensure method has been cached
-        assert client._transport.create_document in client._transport._wrapped_methods
+        assert client._transport.update_document in client._transport._wrapped_methods
 
         # Replace cached wrapped function with mock
         mock_rpc = mock.Mock()
         mock_rpc.return_value.name = (
             "foo"  # operation_request.operation in compute client(s) expect a string.
         )
-        client._transport._wrapped_methods[client._transport.create_document] = mock_rpc
+        client._transport._wrapped_methods[client._transport.update_document] = mock_rpc
 
         request = {}
-        client.create_document(request)
+        client.update_document(request)
 
         # Establish that the underlying gRPC stub method was called.
         assert mock_rpc.call_count == 1
 
-        client.create_document(request)
+        client.update_document(request)
 
         # Establish that a new wrapper was not created for this call
         assert wrapper_fn.call_count == 0
         assert mock_rpc.call_count == 2
 
 
-def test_create_document_rest_required_fields(
-    request_type=document_service.CreateDocumentRequest,
+def test_update_document_rest_required_fields(
+    request_type=document_service.UpdateDocumentRequest,
 ):
     transport_class = transports.DocumentServiceRestTransport
 
     request_init = {}
-    request_init["parent"] = ""
-    request_init["document_id"] = ""
     request = request_type(**request_init)
     pb_request = request_type.pb(request)
     jsonified_request = json.loads(
@@ -4790,32 +5646,27 @@ def test_create_document_rest_required_fields(
     )
 
     # verify fields with default values are dropped
-    assert "documentId" not in jsonified_request
 
     unset_fields = transport_class(
         credentials=ga_credentials.AnonymousCredentials()
-    ).create_document._get_unset_required_fields(jsonified_request)
+    ).update_document._get_unset_required_fields(jsonified_request)
     jsonified_request.update(unset_fields)
 
     # verify required fields with default values are now present
-    assert "documentId" in jsonified_request
-    assert jsonified_request["documentId"] == request_init["document_id"]
-
-    jsonified_request["parent"] = "parent_value"
-    jsonified_request["documentId"] = "document_id_value"
 
     unset_fields = transport_class(
         credentials=ga_credentials.AnonymousCredentials()
-    ).create_document._get_unset_required_fields(jsonified_request)
+    ).update_document._get_unset_required_fields(jsonified_request)
     # Check that path parameters and body parameters are not mixing in.
-    assert not set(unset_fields) - set(("document_id",))
+    assert not set(unset_fields) - set(
+        (
+            "allow_missing",
+            "update_mask",
+        )
+    )
     jsonified_request.update(unset_fields)
 
     # verify required fields with non-default values are left alone
-    assert "parent" in jsonified_request
-    assert jsonified_request["parent"] == "parent_value"
-    assert "documentId" in jsonified_request
-    assert jsonified_request["documentId"] == "document_id_value"
 
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
@@ -4836,7 +5687,7 @@ def test_create_document_rest_required_fields(
             pb_request = request_type.pb(request)
             transcode_result = {
                 "uri": "v1/sample_method",
-                "method": "post",
+                "method": "patch",
                 "query_params": pb_request,
             }
             transcode_result["body"] = pb_request
@@ -4852,39 +5703,32 @@ def test_create_document_rest_required_fields(
             response_value._content = json_return_value.encode("UTF-8")
             req.return_value = response_value
 
-            response = client.create_document(request)
+            response = client.update_document(request)
 
-            expected_params = [
-                (
-                    "documentId",
-                    "",
-                ),
-                ("$alt", "json;enum-encoding=int"),
-            ]
+            expected_params = [("$alt", "json;enum-encoding=int")]
             actual_params = req.call_args.kwargs["params"]
             assert expected_params == actual_params
 
 
-def test_create_document_rest_unset_required_fields():
+def test_update_document_rest_unset_required_fields():
     transport = transports.DocumentServiceRestTransport(
         credentials=ga_credentials.AnonymousCredentials
     )
 
-    unset_fields = transport.create_document._get_unset_required_fields({})
+    unset_fields = transport.update_document._get_unset_required_fields({})
     assert set(unset_fields) == (
-        set(("documentId",))
-        & set(
+        set(
             (
-                "parent",
-                "document",
-                "documentId",
+                "allowMissing",
+                "updateMask",
             )
         )
+        & set(("document",))
     )
 
 
 @pytest.mark.parametrize("null_interceptor", [True, False])
-def test_create_document_rest_interceptors(null_interceptor):
+def test_update_document_rest_interceptors(null_interceptor):
     transport = transports.DocumentServiceRestTransport(
         credentials=ga_credentials.AnonymousCredentials(),
         interceptor=None
@@ -4897,14 +5741,14 @@ def test_create_document_rest_interceptors(null_interceptor):
     ) as req, mock.patch.object(
         path_template, "transcode"
     ) as transcode, mock.patch.object(
-        transports.DocumentServiceRestInterceptor, "post_create_document"
+        transports.DocumentServiceRestInterceptor, "post_update_document"
     ) as post, mock.patch.object(
-        transports.DocumentServiceRestInterceptor, "pre_create_document"
+        transports.DocumentServiceRestInterceptor, "pre_update_document"
     ) as pre:
         pre.assert_not_called()
         post.assert_not_called()
-        pb_message = document_service.CreateDocumentRequest.pb(
-            document_service.CreateDocumentRequest()
+        pb_message = document_service.UpdateDocumentRequest.pb(
+            document_service.UpdateDocumentRequest()
         )
         transcode.return_value = {
             "method": "post",
@@ -4920,7 +5764,7 @@ def test_create_document_rest_interceptors(null_interceptor):
             gcd_document.Document()
         )
 
-        request = document_service.CreateDocumentRequest()
+        request = document_service.UpdateDocumentRequest()
         metadata = [
             ("key", "val"),
             ("cephalopod", "squid"),
@@ -4928,7 +5772,7 @@ def test_create_document_rest_interceptors(null_interceptor):
         pre.return_value = request, metadata
         post.return_value = gcd_document.Document()
 
-        client.create_document(
+        client.update_document(
             request,
             metadata=[
                 ("key", "val"),
@@ -4940,8 +5784,8 @@ def test_create_document_rest_interceptors(null_interceptor):
         post.assert_called_once()
 
 
-def test_create_document_rest_bad_request(
-    transport: str = "rest", request_type=document_service.CreateDocumentRequest
+def test_update_document_rest_bad_request(
+    transport: str = "rest", request_type=document_service.UpdateDocumentRequest
 ):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
@@ -4950,7 +5794,9 @@ def test_create_document_rest_bad_request(
 
     # send a request that will satisfy transcoding
     request_init = {
-        "parent": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4"
+        "document": {
+            "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
+        }
     }
     request = request_type(**request_init)
 
@@ -4963,10 +5809,10 @@ def test_create_document_rest_bad_request(
         response_value.status_code = 400
         response_value.request = Request()
         req.return_value = response_value
-        client.create_document(request)
+        client.update_document(request)
 
 
-def test_create_document_rest_flattened():
+def test_update_document_rest_flattened():
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
         transport="rest",
@@ -4979,12 +5825,13 @@ def test_create_document_rest_flattened():
 
         # get arguments that satisfy an http rule for this method
         sample_request = {
-            "parent": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4"
+            "document": {
+                "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
+            }
         }
 
         # get truthy value for each flattened field
         mock_args = dict(
-            parent="parent_value",
             document=gcd_document.Document(
                 struct_data=struct_pb2.Struct(
                     fields={
@@ -4994,7 +5841,7 @@ def test_create_document_rest_flattened():
                     }
                 )
             ),
-            document_id="document_id_value",
+            update_mask=field_mask_pb2.FieldMask(paths=["paths_value"]),
         )
         mock_args.update(sample_request)
 
@@ -5007,20 +5854,20 @@ def test_create_document_rest_flattened():
         response_value._content = json_return_value.encode("UTF-8")
         req.return_value = response_value
 
-        client.create_document(**mock_args)
+        client.update_document(**mock_args)
 
         # Establish that the underlying call was made with the expected
         # request object values.
         assert len(req.mock_calls) == 1
         _, args, _ = req.mock_calls[0]
         assert path_template.validate(
-            "%s/v1beta/{parent=projects/*/locations/*/dataStores/*/branches/*}/documents"
+            "%s/v1beta/{document.name=projects/*/locations/*/dataStores/*/branches/*/documents/*}"
             % client.transport._host,
             args[1],
         )
 
 
-def test_create_document_rest_flattened_error(transport: str = "rest"):
+def test_update_document_rest_flattened_error(transport: str = "rest"):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
         transport=transport,
@@ -5029,9 +5876,8 @@ def test_create_document_rest_flattened_error(transport: str = "rest"):
     # Attempting to call a method with both a request object and flattened
     # fields is an error.
     with pytest.raises(ValueError):
-        client.create_document(
-            document_service.CreateDocumentRequest(),
-            parent="parent_value",
+        client.update_document(
+            document_service.UpdateDocumentRequest(),
             document=gcd_document.Document(
                 struct_data=struct_pb2.Struct(
                     fields={
@@ -5041,150 +5887,54 @@ def test_create_document_rest_flattened_error(transport: str = "rest"):
                     }
                 )
             ),
-            document_id="document_id_value",
+            update_mask=field_mask_pb2.FieldMask(paths=["paths_value"]),
         )
 
 
-def test_create_document_rest_error():
+def test_update_document_rest_error():
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(), transport="rest"
-    )
-
-
-@pytest.mark.parametrize(
-    "request_type",
-    [
-        document_service.UpdateDocumentRequest,
-        dict,
-    ],
-)
-def test_update_document_rest(request_type):
-    client = DocumentServiceClient(
-        credentials=ga_credentials.AnonymousCredentials(),
-        transport="rest",
-    )
-
-    # send a request that will satisfy transcoding
-    request_init = {
-        "document": {
-            "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
-        }
-    }
-    request_init["document"] = {
-        "struct_data": {"fields": {}},
-        "json_data": "json_data_value",
-        "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5",
-        "id": "id_value",
-        "schema_id": "schema_id_value",
-        "content": {
-            "raw_bytes": b"raw_bytes_blob",
-            "uri": "uri_value",
-            "mime_type": "mime_type_value",
-        },
-        "parent_document_id": "parent_document_id_value",
-        "derived_struct_data": {},
-        "index_time": {"seconds": 751, "nanos": 543},
-    }
-    # The version of a generated dependency at test runtime may differ from the version used during generation.
-    # Delete any fields which are not present in the current runtime dependency
-    # See https://github.com/googleapis/gapic-generator-python/issues/1748
-
-    # Determine if the message type is proto-plus or protobuf
-    test_field = document_service.UpdateDocumentRequest.meta.fields["document"]
-
-    def get_message_fields(field):
-        # Given a field which is a message (composite type), return a list with
-        # all the fields of the message.
-        # If the field is not a composite type, return an empty list.
-        message_fields = []
-
-        if hasattr(field, "message") and field.message:
-            is_field_type_proto_plus_type = not hasattr(field.message, "DESCRIPTOR")
-
-            if is_field_type_proto_plus_type:
-                message_fields = field.message.meta.fields.values()
-            # Add `# pragma: NO COVER` because there may not be any `*_pb2` field types
-            else:  # pragma: NO COVER
-                message_fields = field.message.DESCRIPTOR.fields
-        return message_fields
-
-    runtime_nested_fields = [
-        (field.name, nested_field.name)
-        for field in get_message_fields(test_field)
-        for nested_field in get_message_fields(field)
-    ]
-
-    subfields_not_in_runtime = []
-
-    # For each item in the sample request, create a list of sub fields which are not present at runtime
-    # Add `# pragma: NO COVER` because this test code will not run if all subfields are present at runtime
-    for field, value in request_init["document"].items():  # pragma: NO COVER
-        result = None
-        is_repeated = False
-        # For repeated fields
-        if isinstance(value, list) and len(value):
-            is_repeated = True
-            result = value[0]
-        # For fields where the type is another message
-        if isinstance(value, dict):
-            result = value
-
-        if result and hasattr(result, "keys"):
-            for subfield in result.keys():
-                if (field, subfield) not in runtime_nested_fields:
-                    subfields_not_in_runtime.append(
-                        {
-                            "field": field,
-                            "subfield": subfield,
-                            "is_repeated": is_repeated,
-                        }
-                    )
+    )
 
-    # Remove fields from the sample request which are not present in the runtime version of the dependency
-    # Add `# pragma: NO COVER` because this test code will not run if all subfields are present at runtime
-    for subfield_to_delete in subfields_not_in_runtime:  # pragma: NO COVER
-        field = subfield_to_delete.get("field")
-        field_repeated = subfield_to_delete.get("is_repeated")
-        subfield = subfield_to_delete.get("subfield")
-        if subfield:
-            if field_repeated:
-                for i in range(0, len(request_init["document"][field])):
-                    del request_init["document"][field][i][subfield]
-            else:
-                del request_init["document"][field][subfield]
+
+@pytest.mark.parametrize(
+    "request_type",
+    [
+        document_service.DeleteDocumentRequest,
+        dict,
+    ],
+)
+def test_delete_document_rest(request_type):
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="rest",
+    )
+
+    # send a request that will satisfy transcoding
+    request_init = {
+        "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
+    }
     request = request_type(**request_init)
 
     # Mock the http request call within the method and fake a response.
     with mock.patch.object(type(client.transport._session), "request") as req:
         # Designate an appropriate value for the returned response.
-        return_value = gcd_document.Document(
-            name="name_value",
-            id="id_value",
-            schema_id="schema_id_value",
-            parent_document_id="parent_document_id_value",
-            json_data="json_data_value",
-        )
+        return_value = None
 
         # Wrap the value into a proper Response obj
         response_value = Response()
         response_value.status_code = 200
-        # Convert return value to protobuf type
-        return_value = gcd_document.Document.pb(return_value)
-        json_return_value = json_format.MessageToJson(return_value)
+        json_return_value = ""
 
         response_value._content = json_return_value.encode("UTF-8")
         req.return_value = response_value
-        response = client.update_document(request)
+        response = client.delete_document(request)
 
     # Establish that the response is the type that we expect.
-    assert isinstance(response, gcd_document.Document)
-    assert response.name == "name_value"
-    assert response.id == "id_value"
-    assert response.schema_id == "schema_id_value"
-    assert response.parent_document_id == "parent_document_id_value"
+    assert response is None
 
 
-def test_update_document_rest_use_cached_wrapped_rpc():
+def test_delete_document_rest_use_cached_wrapped_rpc():
     # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
     # instead of constructing them on each call
     with mock.patch("google.api_core.gapic_v1.method.wrap_method") as wrapper_fn:
@@ -5198,34 +5948,35 @@ def test_update_document_rest_use_cached_wrapped_rpc():
         wrapper_fn.reset_mock()
 
         # Ensure method has been cached
-        assert client._transport.update_document in client._transport._wrapped_methods
+        assert client._transport.delete_document in client._transport._wrapped_methods
 
         # Replace cached wrapped function with mock
         mock_rpc = mock.Mock()
         mock_rpc.return_value.name = (
             "foo"  # operation_request.operation in compute client(s) expect a string.
         )
-        client._transport._wrapped_methods[client._transport.update_document] = mock_rpc
+        client._transport._wrapped_methods[client._transport.delete_document] = mock_rpc
 
         request = {}
-        client.update_document(request)
+        client.delete_document(request)
 
         # Establish that the underlying gRPC stub method was called.
         assert mock_rpc.call_count == 1
 
-        client.update_document(request)
+        client.delete_document(request)
 
         # Establish that a new wrapper was not created for this call
         assert wrapper_fn.call_count == 0
         assert mock_rpc.call_count == 2
 
 
-def test_update_document_rest_required_fields(
-    request_type=document_service.UpdateDocumentRequest,
+def test_delete_document_rest_required_fields(
+    request_type=document_service.DeleteDocumentRequest,
 ):
     transport_class = transports.DocumentServiceRestTransport
 
     request_init = {}
+    request_init["name"] = ""
     request = request_type(**request_init)
     pb_request = request_type.pb(request)
     jsonified_request = json.loads(
@@ -5236,24 +5987,21 @@ def test_update_document_rest_required_fields(
 
     unset_fields = transport_class(
         credentials=ga_credentials.AnonymousCredentials()
-    ).update_document._get_unset_required_fields(jsonified_request)
+    ).delete_document._get_unset_required_fields(jsonified_request)
     jsonified_request.update(unset_fields)
 
     # verify required fields with default values are now present
 
+    jsonified_request["name"] = "name_value"
+
     unset_fields = transport_class(
         credentials=ga_credentials.AnonymousCredentials()
-    ).update_document._get_unset_required_fields(jsonified_request)
-    # Check that path parameters and body parameters are not mixing in.
-    assert not set(unset_fields) - set(
-        (
-            "allow_missing",
-            "update_mask",
-        )
-    )
+    ).delete_document._get_unset_required_fields(jsonified_request)
     jsonified_request.update(unset_fields)
 
     # verify required fields with non-default values are left alone
+    assert "name" in jsonified_request
+    assert jsonified_request["name"] == "name_value"
 
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
@@ -5262,7 +6010,7 @@ def test_update_document_rest_required_fields(
     request = request_type(**request_init)
 
     # Designate an appropriate value for the returned response.
-    return_value = gcd_document.Document()
+    return_value = None
     # Mock the http request call within the method and fake a response.
     with mock.patch.object(Session, "request") as req:
         # We need to mock transcode() because providing default values
@@ -5274,48 +6022,36 @@ def test_update_document_rest_required_fields(
             pb_request = request_type.pb(request)
             transcode_result = {
                 "uri": "v1/sample_method",
-                "method": "patch",
+                "method": "delete",
                 "query_params": pb_request,
             }
-            transcode_result["body"] = pb_request
             transcode.return_value = transcode_result
 
             response_value = Response()
             response_value.status_code = 200
-
-            # Convert return value to protobuf type
-            return_value = gcd_document.Document.pb(return_value)
-            json_return_value = json_format.MessageToJson(return_value)
+            json_return_value = ""
 
             response_value._content = json_return_value.encode("UTF-8")
             req.return_value = response_value
 
-            response = client.update_document(request)
+            response = client.delete_document(request)
 
             expected_params = [("$alt", "json;enum-encoding=int")]
             actual_params = req.call_args.kwargs["params"]
             assert expected_params == actual_params
 
 
-def test_update_document_rest_unset_required_fields():
+def test_delete_document_rest_unset_required_fields():
     transport = transports.DocumentServiceRestTransport(
         credentials=ga_credentials.AnonymousCredentials
     )
 
-    unset_fields = transport.update_document._get_unset_required_fields({})
-    assert set(unset_fields) == (
-        set(
-            (
-                "allowMissing",
-                "updateMask",
-            )
-        )
-        & set(("document",))
-    )
+    unset_fields = transport.delete_document._get_unset_required_fields({})
+    assert set(unset_fields) == (set(()) & set(("name",)))
 
 
 @pytest.mark.parametrize("null_interceptor", [True, False])
-def test_update_document_rest_interceptors(null_interceptor):
+def test_delete_document_rest_interceptors(null_interceptor):
     transport = transports.DocumentServiceRestTransport(
         credentials=ga_credentials.AnonymousCredentials(),
         interceptor=None
@@ -5328,14 +6064,11 @@ def test_update_document_rest_interceptors(null_interceptor):
     ) as req, mock.patch.object(
         path_template, "transcode"
     ) as transcode, mock.patch.object(
-        transports.DocumentServiceRestInterceptor, "post_update_document"
-    ) as post, mock.patch.object(
-        transports.DocumentServiceRestInterceptor, "pre_update_document"
+        transports.DocumentServiceRestInterceptor, "pre_delete_document"
     ) as pre:
         pre.assert_not_called()
-        post.assert_not_called()
-        pb_message = document_service.UpdateDocumentRequest.pb(
-            document_service.UpdateDocumentRequest()
+        pb_message = document_service.DeleteDocumentRequest.pb(
+            document_service.DeleteDocumentRequest()
         )
         transcode.return_value = {
             "method": "post",
@@ -5347,19 +6080,15 @@ def test_update_document_rest_interceptors(null_interceptor):
         req.return_value = Response()
         req.return_value.status_code = 200
         req.return_value.request = PreparedRequest()
-        req.return_value._content = gcd_document.Document.to_json(
-            gcd_document.Document()
-        )
 
-        request = document_service.UpdateDocumentRequest()
+        request = document_service.DeleteDocumentRequest()
         metadata = [
             ("key", "val"),
             ("cephalopod", "squid"),
         ]
         pre.return_value = request, metadata
-        post.return_value = gcd_document.Document()
 
-        client.update_document(
+        client.delete_document(
             request,
             metadata=[
                 ("key", "val"),
@@ -5368,11 +6097,10 @@ def test_update_document_rest_interceptors(null_interceptor):
         )
 
         pre.assert_called_once()
-        post.assert_called_once()
 
 
-def test_update_document_rest_bad_request(
-    transport: str = "rest", request_type=document_service.UpdateDocumentRequest
+def test_delete_document_rest_bad_request(
+    transport: str = "rest", request_type=document_service.DeleteDocumentRequest
 ):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
@@ -5381,9 +6109,7 @@ def test_update_document_rest_bad_request(
 
     # send a request that will satisfy transcoding
     request_init = {
-        "document": {
-            "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
-        }
+        "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
     }
     request = request_type(**request_init)
 
@@ -5396,10 +6122,10 @@ def test_update_document_rest_bad_request(
         response_value.status_code = 400
         response_value.request = Request()
         req.return_value = response_value
-        client.update_document(request)
+        client.delete_document(request)
 
 
-def test_update_document_rest_flattened():
+def test_delete_document_rest_flattened():
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
         transport="rest",
@@ -5408,53 +6134,40 @@ def test_update_document_rest_flattened():
     # Mock the http request call within the method and fake a response.
     with mock.patch.object(type(client.transport._session), "request") as req:
         # Designate an appropriate value for the returned response.
-        return_value = gcd_document.Document()
+        return_value = None
 
         # get arguments that satisfy an http rule for this method
         sample_request = {
-            "document": {
-                "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
-            }
+            "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
         }
 
         # get truthy value for each flattened field
         mock_args = dict(
-            document=gcd_document.Document(
-                struct_data=struct_pb2.Struct(
-                    fields={
-                        "key_value": struct_pb2.Value(
-                            null_value=struct_pb2.NullValue.NULL_VALUE
-                        )
-                    }
-                )
-            ),
-            update_mask=field_mask_pb2.FieldMask(paths=["paths_value"]),
+            name="name_value",
         )
         mock_args.update(sample_request)
 
         # Wrap the value into a proper Response obj
         response_value = Response()
         response_value.status_code = 200
-        # Convert return value to protobuf type
-        return_value = gcd_document.Document.pb(return_value)
-        json_return_value = json_format.MessageToJson(return_value)
+        json_return_value = ""
         response_value._content = json_return_value.encode("UTF-8")
         req.return_value = response_value
 
-        client.update_document(**mock_args)
+        client.delete_document(**mock_args)
 
         # Establish that the underlying call was made with the expected
         # request object values.
         assert len(req.mock_calls) == 1
         _, args, _ = req.mock_calls[0]
         assert path_template.validate(
-            "%s/v1beta/{document.name=projects/*/locations/*/dataStores/*/branches/*/documents/*}"
+            "%s/v1beta/{name=projects/*/locations/*/dataStores/*/branches/*/documents/*}"
             % client.transport._host,
             args[1],
         )
 
 
-def test_update_document_rest_flattened_error(transport: str = "rest"):
+def test_delete_document_rest_flattened_error(transport: str = "rest"):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
         transport=transport,
@@ -5463,22 +6176,13 @@ def test_update_document_rest_flattened_error(transport: str = "rest"):
     # Attempting to call a method with both a request object and flattened
     # fields is an error.
     with pytest.raises(ValueError):
-        client.update_document(
-            document_service.UpdateDocumentRequest(),
-            document=gcd_document.Document(
-                struct_data=struct_pb2.Struct(
-                    fields={
-                        "key_value": struct_pb2.Value(
-                            null_value=struct_pb2.NullValue.NULL_VALUE
-                        )
-                    }
-                )
-            ),
-            update_mask=field_mask_pb2.FieldMask(paths=["paths_value"]),
+        client.delete_document(
+            document_service.DeleteDocumentRequest(),
+            name="name_value",
         )
 
 
-def test_update_document_rest_error():
+def test_delete_document_rest_error():
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(), transport="rest"
     )
@@ -5487,11 +6191,11 @@ def test_update_document_rest_error():
 @pytest.mark.parametrize(
     "request_type",
     [
-        document_service.DeleteDocumentRequest,
+        import_config.ImportDocumentsRequest,
         dict,
     ],
 )
-def test_delete_document_rest(request_type):
+def test_import_documents_rest(request_type):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
         transport="rest",
@@ -5499,29 +6203,29 @@ def test_delete_document_rest(request_type):
 
     # send a request that will satisfy transcoding
     request_init = {
-        "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
+        "parent": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4"
     }
     request = request_type(**request_init)
 
     # Mock the http request call within the method and fake a response.
     with mock.patch.object(type(client.transport._session), "request") as req:
         # Designate an appropriate value for the returned response.
-        return_value = None
+        return_value = operations_pb2.Operation(name="operations/spam")
 
         # Wrap the value into a proper Response obj
         response_value = Response()
         response_value.status_code = 200
-        json_return_value = ""
+        json_return_value = json_format.MessageToJson(return_value)
 
         response_value._content = json_return_value.encode("UTF-8")
         req.return_value = response_value
-        response = client.delete_document(request)
+        response = client.import_documents(request)
 
     # Establish that the response is the type that we expect.
-    assert response is None
+    assert response.operation.name == "operations/spam"
 
 
-def test_delete_document_rest_use_cached_wrapped_rpc():
+def test_import_documents_rest_use_cached_wrapped_rpc():
     # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
     # instead of constructing them on each call
     with mock.patch("google.api_core.gapic_v1.method.wrap_method") as wrapper_fn:
@@ -5535,35 +6239,41 @@ def test_delete_document_rest_use_cached_wrapped_rpc():
         wrapper_fn.reset_mock()
 
         # Ensure method has been cached
-        assert client._transport.delete_document in client._transport._wrapped_methods
+        assert client._transport.import_documents in client._transport._wrapped_methods
 
         # Replace cached wrapped function with mock
         mock_rpc = mock.Mock()
         mock_rpc.return_value.name = (
             "foo"  # operation_request.operation in compute client(s) expect a string.
         )
-        client._transport._wrapped_methods[client._transport.delete_document] = mock_rpc
+        client._transport._wrapped_methods[
+            client._transport.import_documents
+        ] = mock_rpc
 
         request = {}
-        client.delete_document(request)
+        client.import_documents(request)
 
         # Establish that the underlying gRPC stub method was called.
         assert mock_rpc.call_count == 1
 
-        client.delete_document(request)
+        # Operation methods build a cached wrapper on first rpc call
+        # subsequent calls should use the cached wrapper
+        wrapper_fn.reset_mock()
+
+        client.import_documents(request)
 
         # Establish that a new wrapper was not created for this call
         assert wrapper_fn.call_count == 0
         assert mock_rpc.call_count == 2
 
 
-def test_delete_document_rest_required_fields(
-    request_type=document_service.DeleteDocumentRequest,
+def test_import_documents_rest_required_fields(
+    request_type=import_config.ImportDocumentsRequest,
 ):
     transport_class = transports.DocumentServiceRestTransport
 
     request_init = {}
-    request_init["name"] = ""
+    request_init["parent"] = ""
     request = request_type(**request_init)
     pb_request = request_type.pb(request)
     jsonified_request = json.loads(
@@ -5574,21 +6284,21 @@ def test_delete_document_rest_required_fields(
 
     unset_fields = transport_class(
         credentials=ga_credentials.AnonymousCredentials()
-    ).delete_document._get_unset_required_fields(jsonified_request)
+    ).import_documents._get_unset_required_fields(jsonified_request)
     jsonified_request.update(unset_fields)
 
     # verify required fields with default values are now present
 
-    jsonified_request["name"] = "name_value"
+    jsonified_request["parent"] = "parent_value"
 
     unset_fields = transport_class(
         credentials=ga_credentials.AnonymousCredentials()
-    ).delete_document._get_unset_required_fields(jsonified_request)
+    ).import_documents._get_unset_required_fields(jsonified_request)
     jsonified_request.update(unset_fields)
 
     # verify required fields with non-default values are left alone
-    assert "name" in jsonified_request
-    assert jsonified_request["name"] == "name_value"
+    assert "parent" in jsonified_request
+    assert jsonified_request["parent"] == "parent_value"
 
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
@@ -5597,7 +6307,7 @@ def test_delete_document_rest_required_fields(
     request = request_type(**request_init)
 
     # Designate an appropriate value for the returned response.
-    return_value = None
+    return_value = operations_pb2.Operation(name="operations/spam")
     # Mock the http request call within the method and fake a response.
     with mock.patch.object(Session, "request") as req:
         # We need to mock transcode() because providing default values
@@ -5609,36 +6319,37 @@ def test_delete_document_rest_required_fields(
             pb_request = request_type.pb(request)
             transcode_result = {
                 "uri": "v1/sample_method",
-                "method": "delete",
+                "method": "post",
                 "query_params": pb_request,
             }
+            transcode_result["body"] = pb_request
             transcode.return_value = transcode_result
 
             response_value = Response()
             response_value.status_code = 200
-            json_return_value = ""
+            json_return_value = json_format.MessageToJson(return_value)
 
             response_value._content = json_return_value.encode("UTF-8")
             req.return_value = response_value
 
-            response = client.delete_document(request)
+            response = client.import_documents(request)
 
             expected_params = [("$alt", "json;enum-encoding=int")]
             actual_params = req.call_args.kwargs["params"]
             assert expected_params == actual_params
 
 
-def test_delete_document_rest_unset_required_fields():
+def test_import_documents_rest_unset_required_fields():
     transport = transports.DocumentServiceRestTransport(
         credentials=ga_credentials.AnonymousCredentials
     )
 
-    unset_fields = transport.delete_document._get_unset_required_fields({})
-    assert set(unset_fields) == (set(()) & set(("name",)))
+    unset_fields = transport.import_documents._get_unset_required_fields({})
+    assert set(unset_fields) == (set(()) & set(("parent",)))
 
 
 @pytest.mark.parametrize("null_interceptor", [True, False])
-def test_delete_document_rest_interceptors(null_interceptor):
+def test_import_documents_rest_interceptors(null_interceptor):
     transport = transports.DocumentServiceRestTransport(
         credentials=ga_credentials.AnonymousCredentials(),
         interceptor=None
@@ -5651,11 +6362,16 @@ def test_delete_document_rest_interceptors(null_interceptor):
     ) as req, mock.patch.object(
         path_template, "transcode"
     ) as transcode, mock.patch.object(
-        transports.DocumentServiceRestInterceptor, "pre_delete_document"
+        operation.Operation, "_set_result_from_operation"
+    ), mock.patch.object(
+        transports.DocumentServiceRestInterceptor, "post_import_documents"
+    ) as post, mock.patch.object(
+        transports.DocumentServiceRestInterceptor, "pre_import_documents"
     ) as pre:
         pre.assert_not_called()
-        pb_message = document_service.DeleteDocumentRequest.pb(
-            document_service.DeleteDocumentRequest()
+        post.assert_not_called()
+        pb_message = import_config.ImportDocumentsRequest.pb(
+            import_config.ImportDocumentsRequest()
         )
         transcode.return_value = {
             "method": "post",
@@ -5667,15 +6383,19 @@ def test_delete_document_rest_interceptors(null_interceptor):
         req.return_value = Response()
         req.return_value.status_code = 200
         req.return_value.request = PreparedRequest()
+        req.return_value._content = json_format.MessageToJson(
+            operations_pb2.Operation()
+        )
 
-        request = document_service.DeleteDocumentRequest()
+        request = import_config.ImportDocumentsRequest()
         metadata = [
             ("key", "val"),
             ("cephalopod", "squid"),
         ]
         pre.return_value = request, metadata
+        post.return_value = operations_pb2.Operation()
 
-        client.delete_document(
+        client.import_documents(
             request,
             metadata=[
                 ("key", "val"),
@@ -5684,10 +6404,11 @@ def test_delete_document_rest_interceptors(null_interceptor):
         )
 
         pre.assert_called_once()
+        post.assert_called_once()
 
 
-def test_delete_document_rest_bad_request(
-    transport: str = "rest", request_type=document_service.DeleteDocumentRequest
+def test_import_documents_rest_bad_request(
+    transport: str = "rest", request_type=import_config.ImportDocumentsRequest
 ):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
@@ -5696,7 +6417,7 @@ def test_delete_document_rest_bad_request(
 
     # send a request that will satisfy transcoding
     request_init = {
-        "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
+        "parent": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4"
     }
     request = request_type(**request_init)
 
@@ -5709,67 +6430,10 @@ def test_delete_document_rest_bad_request(
         response_value.status_code = 400
         response_value.request = Request()
         req.return_value = response_value
-        client.delete_document(request)
-
-
-def test_delete_document_rest_flattened():
-    client = DocumentServiceClient(
-        credentials=ga_credentials.AnonymousCredentials(),
-        transport="rest",
-    )
-
-    # Mock the http request call within the method and fake a response.
-    with mock.patch.object(type(client.transport._session), "request") as req:
-        # Designate an appropriate value for the returned response.
-        return_value = None
-
-        # get arguments that satisfy an http rule for this method
-        sample_request = {
-            "name": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4/documents/sample5"
-        }
-
-        # get truthy value for each flattened field
-        mock_args = dict(
-            name="name_value",
-        )
-        mock_args.update(sample_request)
-
-        # Wrap the value into a proper Response obj
-        response_value = Response()
-        response_value.status_code = 200
-        json_return_value = ""
-        response_value._content = json_return_value.encode("UTF-8")
-        req.return_value = response_value
-
-        client.delete_document(**mock_args)
-
-        # Establish that the underlying call was made with the expected
-        # request object values.
-        assert len(req.mock_calls) == 1
-        _, args, _ = req.mock_calls[0]
-        assert path_template.validate(
-            "%s/v1beta/{name=projects/*/locations/*/dataStores/*/branches/*/documents/*}"
-            % client.transport._host,
-            args[1],
-        )
-
-
-def test_delete_document_rest_flattened_error(transport: str = "rest"):
-    client = DocumentServiceClient(
-        credentials=ga_credentials.AnonymousCredentials(),
-        transport=transport,
-    )
-
-    # Attempting to call a method with both a request object and flattened
-    # fields is an error.
-    with pytest.raises(ValueError):
-        client.delete_document(
-            document_service.DeleteDocumentRequest(),
-            name="name_value",
-        )
+        client.import_documents(request)
 
 
-def test_delete_document_rest_error():
+def test_import_documents_rest_error():
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(), transport="rest"
     )
@@ -5778,11 +6442,11 @@ def test_delete_document_rest_error():
 @pytest.mark.parametrize(
     "request_type",
     [
-        import_config.ImportDocumentsRequest,
+        purge_config.PurgeDocumentsRequest,
         dict,
     ],
 )
-def test_import_documents_rest(request_type):
+def test_purge_documents_rest(request_type):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
         transport="rest",
@@ -5806,13 +6470,13 @@ def test_import_documents_rest(request_type):
 
         response_value._content = json_return_value.encode("UTF-8")
         req.return_value = response_value
-        response = client.import_documents(request)
+        response = client.purge_documents(request)
 
     # Establish that the response is the type that we expect.
     assert response.operation.name == "operations/spam"
 
 
-def test_import_documents_rest_use_cached_wrapped_rpc():
+def test_purge_documents_rest_use_cached_wrapped_rpc():
     # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
     # instead of constructing them on each call
     with mock.patch("google.api_core.gapic_v1.method.wrap_method") as wrapper_fn:
@@ -5826,19 +6490,17 @@ def test_import_documents_rest_use_cached_wrapped_rpc():
         wrapper_fn.reset_mock()
 
         # Ensure method has been cached
-        assert client._transport.import_documents in client._transport._wrapped_methods
+        assert client._transport.purge_documents in client._transport._wrapped_methods
 
         # Replace cached wrapped function with mock
         mock_rpc = mock.Mock()
         mock_rpc.return_value.name = (
             "foo"  # operation_request.operation in compute client(s) expect a string.
         )
-        client._transport._wrapped_methods[
-            client._transport.import_documents
-        ] = mock_rpc
+        client._transport._wrapped_methods[client._transport.purge_documents] = mock_rpc
 
         request = {}
-        client.import_documents(request)
+        client.purge_documents(request)
 
         # Establish that the underlying gRPC stub method was called.
         assert mock_rpc.call_count == 1
@@ -5847,20 +6509,21 @@ def test_import_documents_rest_use_cached_wrapped_rpc():
         # subsequent calls should use the cached wrapper
         wrapper_fn.reset_mock()
 
-        client.import_documents(request)
+        client.purge_documents(request)
 
         # Establish that a new wrapper was not created for this call
         assert wrapper_fn.call_count == 0
         assert mock_rpc.call_count == 2
 
 
-def test_import_documents_rest_required_fields(
-    request_type=import_config.ImportDocumentsRequest,
+def test_purge_documents_rest_required_fields(
+    request_type=purge_config.PurgeDocumentsRequest,
 ):
     transport_class = transports.DocumentServiceRestTransport
 
     request_init = {}
     request_init["parent"] = ""
+    request_init["filter"] = ""
     request = request_type(**request_init)
     pb_request = request_type.pb(request)
     jsonified_request = json.loads(
@@ -5871,21 +6534,24 @@ def test_import_documents_rest_required_fields(
 
     unset_fields = transport_class(
         credentials=ga_credentials.AnonymousCredentials()
-    ).import_documents._get_unset_required_fields(jsonified_request)
+    ).purge_documents._get_unset_required_fields(jsonified_request)
     jsonified_request.update(unset_fields)
 
     # verify required fields with default values are now present
 
     jsonified_request["parent"] = "parent_value"
+    jsonified_request["filter"] = "filter_value"
 
     unset_fields = transport_class(
         credentials=ga_credentials.AnonymousCredentials()
-    ).import_documents._get_unset_required_fields(jsonified_request)
+    ).purge_documents._get_unset_required_fields(jsonified_request)
     jsonified_request.update(unset_fields)
 
     # verify required fields with non-default values are left alone
     assert "parent" in jsonified_request
     assert jsonified_request["parent"] == "parent_value"
+    assert "filter" in jsonified_request
+    assert jsonified_request["filter"] == "filter_value"
 
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
@@ -5919,24 +6585,32 @@ def test_import_documents_rest_required_fields(
             response_value._content = json_return_value.encode("UTF-8")
             req.return_value = response_value
 
-            response = client.import_documents(request)
+            response = client.purge_documents(request)
 
             expected_params = [("$alt", "json;enum-encoding=int")]
             actual_params = req.call_args.kwargs["params"]
             assert expected_params == actual_params
 
 
-def test_import_documents_rest_unset_required_fields():
+def test_purge_documents_rest_unset_required_fields():
     transport = transports.DocumentServiceRestTransport(
         credentials=ga_credentials.AnonymousCredentials
     )
 
-    unset_fields = transport.import_documents._get_unset_required_fields({})
-    assert set(unset_fields) == (set(()) & set(("parent",)))
+    unset_fields = transport.purge_documents._get_unset_required_fields({})
+    assert set(unset_fields) == (
+        set(())
+        & set(
+            (
+                "parent",
+                "filter",
+            )
+        )
+    )
 
 
 @pytest.mark.parametrize("null_interceptor", [True, False])
-def test_import_documents_rest_interceptors(null_interceptor):
+def test_purge_documents_rest_interceptors(null_interceptor):
     transport = transports.DocumentServiceRestTransport(
         credentials=ga_credentials.AnonymousCredentials(),
         interceptor=None
@@ -5951,14 +6625,14 @@ def test_import_documents_rest_interceptors(null_interceptor):
     ) as transcode, mock.patch.object(
         operation.Operation, "_set_result_from_operation"
     ), mock.patch.object(
-        transports.DocumentServiceRestInterceptor, "post_import_documents"
+        transports.DocumentServiceRestInterceptor, "post_purge_documents"
     ) as post, mock.patch.object(
-        transports.DocumentServiceRestInterceptor, "pre_import_documents"
+        transports.DocumentServiceRestInterceptor, "pre_purge_documents"
     ) as pre:
         pre.assert_not_called()
         post.assert_not_called()
-        pb_message = import_config.ImportDocumentsRequest.pb(
-            import_config.ImportDocumentsRequest()
+        pb_message = purge_config.PurgeDocumentsRequest.pb(
+            purge_config.PurgeDocumentsRequest()
         )
         transcode.return_value = {
             "method": "post",
@@ -5974,7 +6648,7 @@ def test_import_documents_rest_interceptors(null_interceptor):
             operations_pb2.Operation()
         )
 
-        request = import_config.ImportDocumentsRequest()
+        request = purge_config.PurgeDocumentsRequest()
         metadata = [
             ("key", "val"),
             ("cephalopod", "squid"),
@@ -5982,7 +6656,7 @@ def test_import_documents_rest_interceptors(null_interceptor):
         pre.return_value = request, metadata
         post.return_value = operations_pb2.Operation()
 
-        client.import_documents(
+        client.purge_documents(
             request,
             metadata=[
                 ("key", "val"),
@@ -5994,8 +6668,8 @@ def test_import_documents_rest_interceptors(null_interceptor):
         post.assert_called_once()
 
 
-def test_import_documents_rest_bad_request(
-    transport: str = "rest", request_type=import_config.ImportDocumentsRequest
+def test_purge_documents_rest_bad_request(
+    transport: str = "rest", request_type=purge_config.PurgeDocumentsRequest
 ):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
@@ -6017,10 +6691,10 @@ def test_import_documents_rest_bad_request(
         response_value.status_code = 400
         response_value.request = Request()
         req.return_value = response_value
-        client.import_documents(request)
+        client.purge_documents(request)
 
 
-def test_import_documents_rest_error():
+def test_purge_documents_rest_error():
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(), transport="rest"
     )
@@ -6029,11 +6703,11 @@ def test_import_documents_rest_error():
 @pytest.mark.parametrize(
     "request_type",
     [
-        purge_config.PurgeDocumentsRequest,
+        document_service.BatchGetDocumentsMetadataRequest,
         dict,
     ],
 )
-def test_purge_documents_rest(request_type):
+def test_batch_get_documents_metadata_rest(request_type):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
         transport="rest",
@@ -6048,22 +6722,26 @@ def test_purge_documents_rest(request_type):
     # Mock the http request call within the method and fake a response.
     with mock.patch.object(type(client.transport._session), "request") as req:
         # Designate an appropriate value for the returned response.
-        return_value = operations_pb2.Operation(name="operations/spam")
+        return_value = document_service.BatchGetDocumentsMetadataResponse()
 
         # Wrap the value into a proper Response obj
         response_value = Response()
         response_value.status_code = 200
+        # Convert return value to protobuf type
+        return_value = document_service.BatchGetDocumentsMetadataResponse.pb(
+            return_value
+        )
         json_return_value = json_format.MessageToJson(return_value)
 
         response_value._content = json_return_value.encode("UTF-8")
         req.return_value = response_value
-        response = client.purge_documents(request)
+        response = client.batch_get_documents_metadata(request)
 
     # Establish that the response is the type that we expect.
-    assert response.operation.name == "operations/spam"
+    assert isinstance(response, document_service.BatchGetDocumentsMetadataResponse)
 
 
-def test_purge_documents_rest_use_cached_wrapped_rpc():
+def test_batch_get_documents_metadata_rest_use_cached_wrapped_rpc():
     # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
     # instead of constructing them on each call
     with mock.patch("google.api_core.gapic_v1.method.wrap_method") as wrapper_fn:
@@ -6077,40 +6755,40 @@ def test_purge_documents_rest_use_cached_wrapped_rpc():
         wrapper_fn.reset_mock()
 
         # Ensure method has been cached
-        assert client._transport.purge_documents in client._transport._wrapped_methods
+        assert (
+            client._transport.batch_get_documents_metadata
+            in client._transport._wrapped_methods
+        )
 
         # Replace cached wrapped function with mock
         mock_rpc = mock.Mock()
         mock_rpc.return_value.name = (
             "foo"  # operation_request.operation in compute client(s) expect a string.
         )
-        client._transport._wrapped_methods[client._transport.purge_documents] = mock_rpc
+        client._transport._wrapped_methods[
+            client._transport.batch_get_documents_metadata
+        ] = mock_rpc
 
         request = {}
-        client.purge_documents(request)
+        client.batch_get_documents_metadata(request)
 
         # Establish that the underlying gRPC stub method was called.
         assert mock_rpc.call_count == 1
 
-        # Operation methods build a cached wrapper on first rpc call
-        # subsequent calls should use the cached wrapper
-        wrapper_fn.reset_mock()
-
-        client.purge_documents(request)
+        client.batch_get_documents_metadata(request)
 
         # Establish that a new wrapper was not created for this call
         assert wrapper_fn.call_count == 0
         assert mock_rpc.call_count == 2
 
 
-def test_purge_documents_rest_required_fields(
-    request_type=purge_config.PurgeDocumentsRequest,
+def test_batch_get_documents_metadata_rest_required_fields(
+    request_type=document_service.BatchGetDocumentsMetadataRequest,
 ):
     transport_class = transports.DocumentServiceRestTransport
 
     request_init = {}
     request_init["parent"] = ""
-    request_init["filter"] = ""
     request = request_type(**request_init)
     pb_request = request_type.pb(request)
     jsonified_request = json.loads(
@@ -6121,24 +6799,23 @@ def test_purge_documents_rest_required_fields(
 
     unset_fields = transport_class(
         credentials=ga_credentials.AnonymousCredentials()
-    ).purge_documents._get_unset_required_fields(jsonified_request)
+    ).batch_get_documents_metadata._get_unset_required_fields(jsonified_request)
     jsonified_request.update(unset_fields)
 
     # verify required fields with default values are now present
 
     jsonified_request["parent"] = "parent_value"
-    jsonified_request["filter"] = "filter_value"
 
     unset_fields = transport_class(
         credentials=ga_credentials.AnonymousCredentials()
-    ).purge_documents._get_unset_required_fields(jsonified_request)
+    ).batch_get_documents_metadata._get_unset_required_fields(jsonified_request)
+    # Check that path parameters and body parameters are not mixing in.
+    assert not set(unset_fields) - set(("matcher",))
     jsonified_request.update(unset_fields)
 
     # verify required fields with non-default values are left alone
     assert "parent" in jsonified_request
     assert jsonified_request["parent"] == "parent_value"
-    assert "filter" in jsonified_request
-    assert jsonified_request["filter"] == "filter_value"
 
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
@@ -6147,7 +6824,7 @@ def test_purge_documents_rest_required_fields(
     request = request_type(**request_init)
 
     # Designate an appropriate value for the returned response.
-    return_value = operations_pb2.Operation(name="operations/spam")
+    return_value = document_service.BatchGetDocumentsMetadataResponse()
     # Mock the http request call within the method and fake a response.
     with mock.patch.object(Session, "request") as req:
         # We need to mock transcode() because providing default values
@@ -6159,45 +6836,49 @@ def test_purge_documents_rest_required_fields(
             pb_request = request_type.pb(request)
             transcode_result = {
                 "uri": "v1/sample_method",
-                "method": "post",
+                "method": "get",
                 "query_params": pb_request,
             }
-            transcode_result["body"] = pb_request
             transcode.return_value = transcode_result
 
             response_value = Response()
             response_value.status_code = 200
+
+            # Convert return value to protobuf type
+            return_value = document_service.BatchGetDocumentsMetadataResponse.pb(
+                return_value
+            )
             json_return_value = json_format.MessageToJson(return_value)
 
             response_value._content = json_return_value.encode("UTF-8")
             req.return_value = response_value
 
-            response = client.purge_documents(request)
+            response = client.batch_get_documents_metadata(request)
 
             expected_params = [("$alt", "json;enum-encoding=int")]
             actual_params = req.call_args.kwargs["params"]
             assert expected_params == actual_params
 
 
-def test_purge_documents_rest_unset_required_fields():
+def test_batch_get_documents_metadata_rest_unset_required_fields():
     transport = transports.DocumentServiceRestTransport(
         credentials=ga_credentials.AnonymousCredentials
     )
 
-    unset_fields = transport.purge_documents._get_unset_required_fields({})
+    unset_fields = transport.batch_get_documents_metadata._get_unset_required_fields({})
     assert set(unset_fields) == (
-        set(())
+        set(("matcher",))
         & set(
             (
                 "parent",
-                "filter",
+                "matcher",
             )
         )
     )
 
 
 @pytest.mark.parametrize("null_interceptor", [True, False])
-def test_purge_documents_rest_interceptors(null_interceptor):
+def test_batch_get_documents_metadata_rest_interceptors(null_interceptor):
     transport = transports.DocumentServiceRestTransport(
         credentials=ga_credentials.AnonymousCredentials(),
         interceptor=None
@@ -6210,16 +6891,14 @@ def test_purge_documents_rest_interceptors(null_interceptor):
     ) as req, mock.patch.object(
         path_template, "transcode"
     ) as transcode, mock.patch.object(
-        operation.Operation, "_set_result_from_operation"
-    ), mock.patch.object(
-        transports.DocumentServiceRestInterceptor, "post_purge_documents"
+        transports.DocumentServiceRestInterceptor, "post_batch_get_documents_metadata"
     ) as post, mock.patch.object(
-        transports.DocumentServiceRestInterceptor, "pre_purge_documents"
+        transports.DocumentServiceRestInterceptor, "pre_batch_get_documents_metadata"
     ) as pre:
         pre.assert_not_called()
         post.assert_not_called()
-        pb_message = purge_config.PurgeDocumentsRequest.pb(
-            purge_config.PurgeDocumentsRequest()
+        pb_message = document_service.BatchGetDocumentsMetadataRequest.pb(
+            document_service.BatchGetDocumentsMetadataRequest()
         )
         transcode.return_value = {
             "method": "post",
@@ -6231,19 +6910,21 @@ def test_purge_documents_rest_interceptors(null_interceptor):
         req.return_value = Response()
         req.return_value.status_code = 200
         req.return_value.request = PreparedRequest()
-        req.return_value._content = json_format.MessageToJson(
-            operations_pb2.Operation()
+        req.return_value._content = (
+            document_service.BatchGetDocumentsMetadataResponse.to_json(
+                document_service.BatchGetDocumentsMetadataResponse()
+            )
         )
 
-        request = purge_config.PurgeDocumentsRequest()
+        request = document_service.BatchGetDocumentsMetadataRequest()
         metadata = [
             ("key", "val"),
             ("cephalopod", "squid"),
         ]
         pre.return_value = request, metadata
-        post.return_value = operations_pb2.Operation()
+        post.return_value = document_service.BatchGetDocumentsMetadataResponse()
 
-        client.purge_documents(
+        client.batch_get_documents_metadata(
             request,
             metadata=[
                 ("key", "val"),
@@ -6255,8 +6936,9 @@ def test_purge_documents_rest_interceptors(null_interceptor):
         post.assert_called_once()
 
 
-def test_purge_documents_rest_bad_request(
-    transport: str = "rest", request_type=purge_config.PurgeDocumentsRequest
+def test_batch_get_documents_metadata_rest_bad_request(
+    transport: str = "rest",
+    request_type=document_service.BatchGetDocumentsMetadataRequest,
 ):
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(),
@@ -6278,10 +6960,71 @@ def test_purge_documents_rest_bad_request(
         response_value.status_code = 400
         response_value.request = Request()
         req.return_value = response_value
-        client.purge_documents(request)
+        client.batch_get_documents_metadata(request)
 
 
-def test_purge_documents_rest_error():
+def test_batch_get_documents_metadata_rest_flattened():
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="rest",
+    )
+
+    # Mock the http request call within the method and fake a response.
+    with mock.patch.object(type(client.transport._session), "request") as req:
+        # Designate an appropriate value for the returned response.
+        return_value = document_service.BatchGetDocumentsMetadataResponse()
+
+        # get arguments that satisfy an http rule for this method
+        sample_request = {
+            "parent": "projects/sample1/locations/sample2/dataStores/sample3/branches/sample4"
+        }
+
+        # get truthy value for each flattened field
+        mock_args = dict(
+            parent="parent_value",
+        )
+        mock_args.update(sample_request)
+
+        # Wrap the value into a proper Response obj
+        response_value = Response()
+        response_value.status_code = 200
+        # Convert return value to protobuf type
+        return_value = document_service.BatchGetDocumentsMetadataResponse.pb(
+            return_value
+        )
+        json_return_value = json_format.MessageToJson(return_value)
+        response_value._content = json_return_value.encode("UTF-8")
+        req.return_value = response_value
+
+        client.batch_get_documents_metadata(**mock_args)
+
+        # Establish that the underlying call was made with the expected
+        # request object values.
+        assert len(req.mock_calls) == 1
+        _, args, _ = req.mock_calls[0]
+        assert path_template.validate(
+            "%s/v1beta/{parent=projects/*/locations/*/dataStores/*/branches/*}/batchGetDocumentsMetadata"
+            % client.transport._host,
+            args[1],
+        )
+
+
+def test_batch_get_documents_metadata_rest_flattened_error(transport: str = "rest"):
+    client = DocumentServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport=transport,
+    )
+
+    # Attempting to call a method with both a request object and flattened
+    # fields is an error.
+    with pytest.raises(ValueError):
+        client.batch_get_documents_metadata(
+            document_service.BatchGetDocumentsMetadataRequest(),
+            parent="parent_value",
+        )
+
+
+def test_batch_get_documents_metadata_rest_error():
     client = DocumentServiceClient(
         credentials=ga_credentials.AnonymousCredentials(), transport="rest"
     )
@@ -6433,6 +7176,7 @@ def test_document_service_base_transport():
         "delete_document",
         "import_documents",
         "purge_documents",
+        "batch_get_documents_metadata",
         "get_operation",
         "cancel_operation",
         "list_operations",
@@ -6737,6 +7481,9 @@ def test_document_service_client_transport_session_collision(transport_name):
     session1 = client1.transport.purge_documents._session
     session2 = client2.transport.purge_documents._session
     assert session1 != session2
+    session1 = client1.transport.batch_get_documents_metadata._session
+    session2 = client2.transport.batch_get_documents_metadata._session
+    assert session1 != session2
 
 
 def test_document_service_grpc_transport_channel():
diff --git a/packages/google-cloud-discoveryengine/tests/unit/gapic/discoveryengine_v1beta/test_evaluation_service.py b/packages/google-cloud-discoveryengine/tests/unit/gapic/discoveryengine_v1beta/test_evaluation_service.py
index 0fd27c82c7e8..e22d9e9f080e 100644
--- a/packages/google-cloud-discoveryengine/tests/unit/gapic/discoveryengine_v1beta/test_evaluation_service.py
+++ b/packages/google-cloud-discoveryengine/tests/unit/gapic/discoveryengine_v1beta/test_evaluation_service.py
@@ -3895,6 +3895,7 @@ def test_create_evaluation_rest(request_type):
                         "include_citations": True,
                         "ignore_adversarial_query": True,
                         "ignore_non_summary_seeking_query": True,
+                        "ignore_low_relevant_content": True,
                         "model_prompt_spec": {"preamble": "preamble_value"},
                         "language_code": "language_code_value",
                         "model_spec": {"version": "version_value"},
@@ -3934,6 +3935,7 @@ def test_create_evaluation_rest(request_type):
                     "query_id": "query_id_value",
                     "search_result_persistence_count": 3328,
                 },
+                "relevance_threshold": 1,
             },
             "query_set_spec": {"sample_query_set": "sample_query_set_value"},
         },
diff --git a/packages/google-cloud-discoveryengine/tests/unit/gapic/discoveryengine_v1beta/test_serving_config_service.py b/packages/google-cloud-discoveryengine/tests/unit/gapic/discoveryengine_v1beta/test_serving_config_service.py
index 33f10ee85214..1eddb9e8a3c5 100644
--- a/packages/google-cloud-discoveryengine/tests/unit/gapic/discoveryengine_v1beta/test_serving_config_service.py
+++ b/packages/google-cloud-discoveryengine/tests/unit/gapic/discoveryengine_v1beta/test_serving_config_service.py
@@ -2761,6 +2761,7 @@ def test_update_serving_config_rest(request_type):
                     "include_citations": True,
                     "ignore_adversarial_query": True,
                     "ignore_non_summary_seeking_query": True,
+                    "ignore_low_relevant_content": True,
                     "model_prompt_spec": {"preamble": "preamble_value"},
                     "language_code": "language_code_value",
                     "model_spec": {"version": "version_value"},
diff --git a/packages/google-cloud-discoveryengine/tests/unit/gapic/discoveryengine_v1beta/test_user_event_service.py b/packages/google-cloud-discoveryengine/tests/unit/gapic/discoveryengine_v1beta/test_user_event_service.py
index fe2c1010670e..b04e0007a9c2 100644
--- a/packages/google-cloud-discoveryengine/tests/unit/gapic/discoveryengine_v1beta/test_user_event_service.py
+++ b/packages/google-cloud-discoveryengine/tests/unit/gapic/discoveryengine_v1beta/test_user_event_service.py
@@ -2455,6 +2455,7 @@ def test_write_user_event_rest(request_type):
                 "uri": "uri_value",
                 "quantity": 895,
                 "promotion_ids": ["promotion_ids_value1", "promotion_ids_value2"],
+                "joined": True,
             }
         ],
         "panel": {
diff --git a/packages/google-cloud-edgenetwork/CHANGELOG.md b/packages/google-cloud-edgenetwork/CHANGELOG.md
index 87be46e4a5c2..07373dfdf459 100644
--- a/packages/google-cloud-edgenetwork/CHANGELOG.md
+++ b/packages/google-cloud-edgenetwork/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [0.1.11](https://github.com/googleapis/google-cloud-python/compare/google-cloud-edgenetwork-v0.1.10...google-cloud-edgenetwork-v0.1.11) (2024-09-03)
+
+
+### Documentation
+
+* swap comments on `BONDED` and `NON_BONDED` enums in `BondingType` ([308de6b](https://github.com/googleapis/google-cloud-python/commit/308de6b266e24a8996875736b66485d92f299401))
+
 ## [0.1.10](https://github.com/googleapis/google-cloud-python/compare/google-cloud-edgenetwork-v0.1.9...google-cloud-edgenetwork-v0.1.10) (2024-07-30)
 
 
diff --git a/packages/google-cloud-edgenetwork/google/cloud/edgenetwork/gapic_version.py b/packages/google-cloud-edgenetwork/google/cloud/edgenetwork/gapic_version.py
index 558c8aab67c5..4b834789ba9e 100644
--- a/packages/google-cloud-edgenetwork/google/cloud/edgenetwork/gapic_version.py
+++ b/packages/google-cloud-edgenetwork/google/cloud/edgenetwork/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "0.0.0"  # {x-release-please-version}
+__version__ = "0.1.11"  # {x-release-please-version}
diff --git a/packages/google-cloud-edgenetwork/google/cloud/edgenetwork_v1/gapic_version.py b/packages/google-cloud-edgenetwork/google/cloud/edgenetwork_v1/gapic_version.py
index 558c8aab67c5..4b834789ba9e 100644
--- a/packages/google-cloud-edgenetwork/google/cloud/edgenetwork_v1/gapic_version.py
+++ b/packages/google-cloud-edgenetwork/google/cloud/edgenetwork_v1/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "0.0.0"  # {x-release-please-version}
+__version__ = "0.1.11"  # {x-release-please-version}
diff --git a/packages/google-cloud-edgenetwork/google/cloud/edgenetwork_v1/types/resources.py b/packages/google-cloud-edgenetwork/google/cloud/edgenetwork_v1/types/resources.py
index dee3539ac39e..af3183abd5d5 100644
--- a/packages/google-cloud-edgenetwork/google/cloud/edgenetwork_v1/types/resources.py
+++ b/packages/google-cloud-edgenetwork/google/cloud/edgenetwork_v1/types/resources.py
@@ -224,9 +224,9 @@ class BondingType(proto.Enum):
                 have both bonded and non-bonded connectivity to
                 machines.
             BONDED (1):
-                Single homed.
-            NON_BONDED (2):
                 Multi homed.
+            NON_BONDED (2):
+                Single homed.
         """
         BONDING_TYPE_UNSPECIFIED = 0
         BONDED = 1
diff --git a/packages/google-cloud-edgenetwork/samples/generated_samples/snippet_metadata_google.cloud.edgenetwork.v1.json b/packages/google-cloud-edgenetwork/samples/generated_samples/snippet_metadata_google.cloud.edgenetwork.v1.json
index 04d64b8b1330..4e8d32cac42d 100644
--- a/packages/google-cloud-edgenetwork/samples/generated_samples/snippet_metadata_google.cloud.edgenetwork.v1.json
+++ b/packages/google-cloud-edgenetwork/samples/generated_samples/snippet_metadata_google.cloud.edgenetwork.v1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-edgenetwork",
-    "version": "0.1.0"
+    "version": "0.1.11"
   },
   "snippets": [
     {
diff --git a/packages/google-cloud-gke-connect-gateway/.repo-metadata.json b/packages/google-cloud-gke-connect-gateway/.repo-metadata.json
index a621420cff60..8f664d786f4a 100644
--- a/packages/google-cloud-gke-connect-gateway/.repo-metadata.json
+++ b/packages/google-cloud-gke-connect-gateway/.repo-metadata.json
@@ -10,7 +10,7 @@
     "repo": "googleapis/google-cloud-python",
     "distribution_name": "google-cloud-gke-connect-gateway",
     "api_id": "connectgateway.googleapis.com",
-    "default_version": "v1beta1",
+    "default_version": "v1",
     "codeowner_team": "",
     "api_shortname": "connectgateway",
     "api_description": "builds on the power of fleets to let Anthos users connect to and run commands against registered Anthos clusters in a simple, consistent, and secured way, whether the clusters are on Google Cloud, other public clouds, or on premises, and makes it easier to automate DevOps processes across all your clusters."
diff --git a/packages/google-cloud-gke-connect-gateway/CHANGELOG.md b/packages/google-cloud-gke-connect-gateway/CHANGELOG.md
index 3912730be4d5..3d4aa240a4d4 100644
--- a/packages/google-cloud-gke-connect-gateway/CHANGELOG.md
+++ b/packages/google-cloud-gke-connect-gateway/CHANGELOG.md
@@ -1,5 +1,22 @@
 # Changelog
 
+## [0.9.0](https://github.com/googleapis/google-cloud-python/compare/google-cloud-gke-connect-gateway-v0.8.11...google-cloud-gke-connect-gateway-v0.9.0) (2024-08-22)
+
+
+### ⚠ BREAKING CHANGES
+
+* [google-cloud-gke-connect-gateway] removed the nonfunctional GatewayService and replaced it with the GatewayControl service
+* existing client libraries are being regenerated to remove unused functionality and introduce new features.
+
+### Features
+
+* [google-cloud-gke-connect-gateway] removed the nonfunctional GatewayService and replaced it with the GatewayControl service ([6639798](https://github.com/googleapis/google-cloud-python/commit/6639798f019e86e72ce6cd5a2c837320439cb2b6))
+
+
+### Bug Fixes
+
+* Set google.cloud.gkeconnect.gateway_v1 as the default import ([6639798](https://github.com/googleapis/google-cloud-python/commit/6639798f019e86e72ce6cd5a2c837320439cb2b6))
+
 ## [0.8.11](https://github.com/googleapis/google-cloud-python/compare/google-cloud-gke-connect-gateway-v0.8.10...google-cloud-gke-connect-gateway-v0.8.11) (2024-07-30)
 
 
diff --git a/packages/google-cloud-gke-connect-gateway/docs/gateway_v1/gateway_control.rst b/packages/google-cloud-gke-connect-gateway/docs/gateway_v1/gateway_control.rst
new file mode 100644
index 000000000000..5f926c0f8738
--- /dev/null
+++ b/packages/google-cloud-gke-connect-gateway/docs/gateway_v1/gateway_control.rst
@@ -0,0 +1,6 @@
+GatewayControl
+--------------------------------
+
+.. automodule:: google.cloud.gkeconnect.gateway_v1.services.gateway_control
+    :members:
+    :inherited-members:
diff --git a/packages/google-cloud-gke-connect-gateway/docs/gateway_v1/services_.rst b/packages/google-cloud-gke-connect-gateway/docs/gateway_v1/services_.rst
new file mode 100644
index 000000000000..3a27320049ff
--- /dev/null
+++ b/packages/google-cloud-gke-connect-gateway/docs/gateway_v1/services_.rst
@@ -0,0 +1,6 @@
+Services for Google Cloud Gkeconnect Gateway v1 API
+===================================================
+.. toctree::
+    :maxdepth: 2
+
+    gateway_control
diff --git a/packages/google-cloud-gke-connect-gateway/docs/gateway_v1/types_.rst b/packages/google-cloud-gke-connect-gateway/docs/gateway_v1/types_.rst
new file mode 100644
index 000000000000..e043fb7f8f73
--- /dev/null
+++ b/packages/google-cloud-gke-connect-gateway/docs/gateway_v1/types_.rst
@@ -0,0 +1,6 @@
+Types for Google Cloud Gkeconnect Gateway v1 API
+================================================
+
+.. automodule:: google.cloud.gkeconnect.gateway_v1.types
+    :members:
+    :show-inheritance:
diff --git a/packages/google-cloud-gke-connect-gateway/docs/gateway_v1beta1/gateway_service.rst b/packages/google-cloud-gke-connect-gateway/docs/gateway_v1beta1/gateway_control.rst
similarity index 80%
rename from packages/google-cloud-gke-connect-gateway/docs/gateway_v1beta1/gateway_service.rst
rename to packages/google-cloud-gke-connect-gateway/docs/gateway_v1beta1/gateway_control.rst
index 7dffb5a4dc24..7091b0d7e026 100644
--- a/packages/google-cloud-gke-connect-gateway/docs/gateway_v1beta1/gateway_service.rst
+++ b/packages/google-cloud-gke-connect-gateway/docs/gateway_v1beta1/gateway_control.rst
@@ -1,6 +1,6 @@
-GatewayService
+GatewayControl
 --------------------------------
 
-.. automodule:: google.cloud.gkeconnect.gateway_v1beta1.services.gateway_service
+.. automodule:: google.cloud.gkeconnect.gateway_v1beta1.services.gateway_control
     :members:
     :inherited-members:
diff --git a/packages/google-cloud-gke-connect-gateway/docs/gateway_v1beta1/services_.rst b/packages/google-cloud-gke-connect-gateway/docs/gateway_v1beta1/services_.rst
index c9c94b3690bc..98a39ee54b47 100644
--- a/packages/google-cloud-gke-connect-gateway/docs/gateway_v1beta1/services_.rst
+++ b/packages/google-cloud-gke-connect-gateway/docs/gateway_v1beta1/services_.rst
@@ -3,4 +3,4 @@ Services for Google Cloud Gkeconnect Gateway v1beta1 API
 .. toctree::
     :maxdepth: 2
 
-    gateway_service
+    gateway_control
diff --git a/packages/google-cloud-gke-connect-gateway/docs/index.rst b/packages/google-cloud-gke-connect-gateway/docs/index.rst
index 16bff39fc480..901b79a633a2 100644
--- a/packages/google-cloud-gke-connect-gateway/docs/index.rst
+++ b/packages/google-cloud-gke-connect-gateway/docs/index.rst
@@ -2,6 +2,17 @@
 
 .. include:: multiprocessing.rst
 
+This package includes clients for multiple versions of GKE Connect Gateway.
+By default, you will get version ``gateway_v1``.
+
+
+API Reference
+-------------
+.. toctree::
+    :maxdepth: 2
+
+    gateway_v1/services_
+    gateway_v1/types_
 
 API Reference
 -------------
diff --git a/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway/__init__.py b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway/__init__.py
index 4ec6e91d9d73..f15cecdbcbb1 100644
--- a/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway/__init__.py
+++ b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway/__init__.py
@@ -18,14 +18,20 @@
 __version__ = package_version.__version__
 
 
-from google.cloud.gkeconnect.gateway_v1beta1.services.gateway_service.async_client import (
-    GatewayServiceAsyncClient,
+from google.cloud.gkeconnect.gateway_v1.services.gateway_control.async_client import (
+    GatewayControlAsyncClient,
 )
-from google.cloud.gkeconnect.gateway_v1beta1.services.gateway_service.client import (
-    GatewayServiceClient,
+from google.cloud.gkeconnect.gateway_v1.services.gateway_control.client import (
+    GatewayControlClient,
+)
+from google.cloud.gkeconnect.gateway_v1.types.control import (
+    GenerateCredentialsRequest,
+    GenerateCredentialsResponse,
 )
 
 __all__ = (
-    "GatewayServiceClient",
-    "GatewayServiceAsyncClient",
+    "GatewayControlClient",
+    "GatewayControlAsyncClient",
+    "GenerateCredentialsRequest",
+    "GenerateCredentialsResponse",
 )
diff --git a/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway/gapic_version.py b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway/gapic_version.py
index 558c8aab67c5..a4e5ba3ce496 100644
--- a/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway/gapic_version.py
+++ b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "0.0.0"  # {x-release-please-version}
+__version__ = "0.9.0"  # {x-release-please-version}
diff --git a/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1/__init__.py b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1/__init__.py
new file mode 100644
index 000000000000..31f3cf855bef
--- /dev/null
+++ b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1/__init__.py
@@ -0,0 +1,29 @@
+# -*- coding: utf-8 -*-
+# Copyright 2024 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+from google.cloud.gkeconnect.gateway_v1 import gapic_version as package_version
+
+__version__ = package_version.__version__
+
+
+from .services.gateway_control import GatewayControlAsyncClient, GatewayControlClient
+from .types.control import GenerateCredentialsRequest, GenerateCredentialsResponse
+
+__all__ = (
+    "GatewayControlAsyncClient",
+    "GatewayControlClient",
+    "GenerateCredentialsRequest",
+    "GenerateCredentialsResponse",
+)
diff --git a/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1/gapic_metadata.json b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1/gapic_metadata.json
new file mode 100644
index 000000000000..5d08e8325089
--- /dev/null
+++ b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1/gapic_metadata.json
@@ -0,0 +1,43 @@
+ {
+  "comment": "This file maps proto services/RPCs to the corresponding library clients/methods",
+  "language": "python",
+  "libraryPackage": "google.cloud.gkeconnect.gateway_v1",
+  "protoPackage": "google.cloud.gkeconnect.gateway.v1",
+  "schema": "1.0",
+  "services": {
+    "GatewayControl": {
+      "clients": {
+        "grpc": {
+          "libraryClient": "GatewayControlClient",
+          "rpcs": {
+            "GenerateCredentials": {
+              "methods": [
+                "generate_credentials"
+              ]
+            }
+          }
+        },
+        "grpc-async": {
+          "libraryClient": "GatewayControlAsyncClient",
+          "rpcs": {
+            "GenerateCredentials": {
+              "methods": [
+                "generate_credentials"
+              ]
+            }
+          }
+        },
+        "rest": {
+          "libraryClient": "GatewayControlClient",
+          "rpcs": {
+            "GenerateCredentials": {
+              "methods": [
+                "generate_credentials"
+              ]
+            }
+          }
+        }
+      }
+    }
+  }
+}
diff --git a/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1/gapic_version.py b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1/gapic_version.py
new file mode 100644
index 000000000000..558c8aab67c5
--- /dev/null
+++ b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1/gapic_version.py
@@ -0,0 +1,16 @@
+# -*- coding: utf-8 -*-
+# Copyright 2024 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+__version__ = "0.0.0"  # {x-release-please-version}
diff --git a/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1/py.typed b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1/py.typed
new file mode 100644
index 000000000000..fc91be3f2256
--- /dev/null
+++ b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1/py.typed
@@ -0,0 +1,2 @@
+# Marker file for PEP 561.
+# The google-cloud-gke-connect-gateway package uses inline types.
diff --git a/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1/services/__init__.py b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1/services/__init__.py
new file mode 100644
index 000000000000..8f6cf068242c
--- /dev/null
+++ b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1/services/__init__.py
@@ -0,0 +1,15 @@
+# -*- coding: utf-8 -*-
+# Copyright 2024 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
diff --git a/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/services/gateway_service/__init__.py b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1/services/gateway_control/__init__.py
similarity index 79%
rename from packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/services/gateway_service/__init__.py
rename to packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1/services/gateway_control/__init__.py
index 1e7c2740f4c2..6d98a5d3aec9 100644
--- a/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/services/gateway_service/__init__.py
+++ b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1/services/gateway_control/__init__.py
@@ -13,10 +13,10 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-from .async_client import GatewayServiceAsyncClient
-from .client import GatewayServiceClient
+from .async_client import GatewayControlAsyncClient
+from .client import GatewayControlClient
 
 __all__ = (
-    "GatewayServiceClient",
-    "GatewayServiceAsyncClient",
+    "GatewayControlClient",
+    "GatewayControlAsyncClient",
 )
diff --git a/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1/services/gateway_control/async_client.py b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1/services/gateway_control/async_client.py
new file mode 100644
index 000000000000..1f6ebd6ef20d
--- /dev/null
+++ b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1/services/gateway_control/async_client.py
@@ -0,0 +1,352 @@
+# -*- coding: utf-8 -*-
+# Copyright 2024 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+from collections import OrderedDict
+import re
+from typing import (
+    Callable,
+    Dict,
+    Mapping,
+    MutableMapping,
+    MutableSequence,
+    Optional,
+    Sequence,
+    Tuple,
+    Type,
+    Union,
+)
+
+from google.api_core import exceptions as core_exceptions
+from google.api_core import gapic_v1
+from google.api_core import retry_async as retries
+from google.api_core.client_options import ClientOptions
+from google.auth import credentials as ga_credentials  # type: ignore
+from google.oauth2 import service_account  # type: ignore
+
+from google.cloud.gkeconnect.gateway_v1 import gapic_version as package_version
+
+try:
+    OptionalRetry = Union[retries.AsyncRetry, gapic_v1.method._MethodDefault, None]
+except AttributeError:  # pragma: NO COVER
+    OptionalRetry = Union[retries.AsyncRetry, object, None]  # type: ignore
+
+from google.cloud.gkeconnect.gateway_v1.types import control
+
+from .client import GatewayControlClient
+from .transports.base import DEFAULT_CLIENT_INFO, GatewayControlTransport
+from .transports.grpc_asyncio import GatewayControlGrpcAsyncIOTransport
+
+
+class GatewayControlAsyncClient:
+    """GatewayControl is the control plane API for Connect Gateway."""
+
+    _client: GatewayControlClient
+
+    # Copy defaults from the synchronous client for use here.
+    # Note: DEFAULT_ENDPOINT is deprecated. Use _DEFAULT_ENDPOINT_TEMPLATE instead.
+    DEFAULT_ENDPOINT = GatewayControlClient.DEFAULT_ENDPOINT
+    DEFAULT_MTLS_ENDPOINT = GatewayControlClient.DEFAULT_MTLS_ENDPOINT
+    _DEFAULT_ENDPOINT_TEMPLATE = GatewayControlClient._DEFAULT_ENDPOINT_TEMPLATE
+    _DEFAULT_UNIVERSE = GatewayControlClient._DEFAULT_UNIVERSE
+
+    common_billing_account_path = staticmethod(
+        GatewayControlClient.common_billing_account_path
+    )
+    parse_common_billing_account_path = staticmethod(
+        GatewayControlClient.parse_common_billing_account_path
+    )
+    common_folder_path = staticmethod(GatewayControlClient.common_folder_path)
+    parse_common_folder_path = staticmethod(
+        GatewayControlClient.parse_common_folder_path
+    )
+    common_organization_path = staticmethod(
+        GatewayControlClient.common_organization_path
+    )
+    parse_common_organization_path = staticmethod(
+        GatewayControlClient.parse_common_organization_path
+    )
+    common_project_path = staticmethod(GatewayControlClient.common_project_path)
+    parse_common_project_path = staticmethod(
+        GatewayControlClient.parse_common_project_path
+    )
+    common_location_path = staticmethod(GatewayControlClient.common_location_path)
+    parse_common_location_path = staticmethod(
+        GatewayControlClient.parse_common_location_path
+    )
+
+    @classmethod
+    def from_service_account_info(cls, info: dict, *args, **kwargs):
+        """Creates an instance of this client using the provided credentials
+            info.
+
+        Args:
+            info (dict): The service account private key info.
+            args: Additional arguments to pass to the constructor.
+            kwargs: Additional arguments to pass to the constructor.
+
+        Returns:
+            GatewayControlAsyncClient: The constructed client.
+        """
+        return GatewayControlClient.from_service_account_info.__func__(GatewayControlAsyncClient, info, *args, **kwargs)  # type: ignore
+
+    @classmethod
+    def from_service_account_file(cls, filename: str, *args, **kwargs):
+        """Creates an instance of this client using the provided credentials
+            file.
+
+        Args:
+            filename (str): The path to the service account private key json
+                file.
+            args: Additional arguments to pass to the constructor.
+            kwargs: Additional arguments to pass to the constructor.
+
+        Returns:
+            GatewayControlAsyncClient: The constructed client.
+        """
+        return GatewayControlClient.from_service_account_file.__func__(GatewayControlAsyncClient, filename, *args, **kwargs)  # type: ignore
+
+    from_service_account_json = from_service_account_file
+
+    @classmethod
+    def get_mtls_endpoint_and_cert_source(
+        cls, client_options: Optional[ClientOptions] = None
+    ):
+        """Return the API endpoint and client cert source for mutual TLS.
+
+        The client cert source is determined in the following order:
+        (1) if `GOOGLE_API_USE_CLIENT_CERTIFICATE` environment variable is not "true", the
+        client cert source is None.
+        (2) if `client_options.client_cert_source` is provided, use the provided one; if the
+        default client cert source exists, use the default one; otherwise the client cert
+        source is None.
+
+        The API endpoint is determined in the following order:
+        (1) if `client_options.api_endpoint` if provided, use the provided one.
+        (2) if `GOOGLE_API_USE_CLIENT_CERTIFICATE` environment variable is "always", use the
+        default mTLS endpoint; if the environment variable is "never", use the default API
+        endpoint; otherwise if client cert source exists, use the default mTLS endpoint, otherwise
+        use the default API endpoint.
+
+        More details can be found at https://google.aip.dev/auth/4114.
+
+        Args:
+            client_options (google.api_core.client_options.ClientOptions): Custom options for the
+                client. Only the `api_endpoint` and `client_cert_source` properties may be used
+                in this method.
+
+        Returns:
+            Tuple[str, Callable[[], Tuple[bytes, bytes]]]: returns the API endpoint and the
+                client cert source to use.
+
+        Raises:
+            google.auth.exceptions.MutualTLSChannelError: If any errors happen.
+        """
+        return GatewayControlClient.get_mtls_endpoint_and_cert_source(client_options)  # type: ignore
+
+    @property
+    def transport(self) -> GatewayControlTransport:
+        """Returns the transport used by the client instance.
+
+        Returns:
+            GatewayControlTransport: The transport used by the client instance.
+        """
+        return self._client.transport
+
+    @property
+    def api_endpoint(self):
+        """Return the API endpoint used by the client instance.
+
+        Returns:
+            str: The API endpoint used by the client instance.
+        """
+        return self._client._api_endpoint
+
+    @property
+    def universe_domain(self) -> str:
+        """Return the universe domain used by the client instance.
+
+        Returns:
+            str: The universe domain used
+                by the client instance.
+        """
+        return self._client._universe_domain
+
+    get_transport_class = GatewayControlClient.get_transport_class
+
+    def __init__(
+        self,
+        *,
+        credentials: Optional[ga_credentials.Credentials] = None,
+        transport: Optional[
+            Union[str, GatewayControlTransport, Callable[..., GatewayControlTransport]]
+        ] = "grpc_asyncio",
+        client_options: Optional[ClientOptions] = None,
+        client_info: gapic_v1.client_info.ClientInfo = DEFAULT_CLIENT_INFO,
+    ) -> None:
+        """Instantiates the gateway control async client.
+
+        Args:
+            credentials (Optional[google.auth.credentials.Credentials]): The
+                authorization credentials to attach to requests. These
+                credentials identify the application to the service; if none
+                are specified, the client will attempt to ascertain the
+                credentials from the environment.
+            transport (Optional[Union[str,GatewayControlTransport,Callable[..., GatewayControlTransport]]]):
+                The transport to use, or a Callable that constructs and returns a new transport to use.
+                If a Callable is given, it will be called with the same set of initialization
+                arguments as used in the GatewayControlTransport constructor.
+                If set to None, a transport is chosen automatically.
+            client_options (Optional[Union[google.api_core.client_options.ClientOptions, dict]]):
+                Custom options for the client.
+
+                1. The ``api_endpoint`` property can be used to override the
+                default endpoint provided by the client when ``transport`` is
+                not explicitly provided. Only if this property is not set and
+                ``transport`` was not explicitly provided, the endpoint is
+                determined by the GOOGLE_API_USE_MTLS_ENDPOINT environment
+                variable, which have one of the following values:
+                "always" (always use the default mTLS endpoint), "never" (always
+                use the default regular endpoint) and "auto" (auto-switch to the
+                default mTLS endpoint if client certificate is present; this is
+                the default value).
+
+                2. If the GOOGLE_API_USE_CLIENT_CERTIFICATE environment variable
+                is "true", then the ``client_cert_source`` property can be used
+                to provide a client certificate for mTLS transport. If
+                not provided, the default SSL client certificate will be used if
+                present. If GOOGLE_API_USE_CLIENT_CERTIFICATE is "false" or not
+                set, no client certificate will be used.
+
+                3. The ``universe_domain`` property can be used to override the
+                default "googleapis.com" universe. Note that ``api_endpoint``
+                property still takes precedence; and ``universe_domain`` is
+                currently not supported for mTLS.
+
+            client_info (google.api_core.gapic_v1.client_info.ClientInfo):
+                The client info used to send a user-agent string along with
+                API requests. If ``None``, then default info will be used.
+                Generally, you only need to set this if you're developing
+                your own client library.
+
+        Raises:
+            google.auth.exceptions.MutualTlsChannelError: If mutual TLS transport
+                creation failed for any reason.
+        """
+        self._client = GatewayControlClient(
+            credentials=credentials,
+            transport=transport,
+            client_options=client_options,
+            client_info=client_info,
+        )
+
+    async def generate_credentials(
+        self,
+        request: Optional[Union[control.GenerateCredentialsRequest, dict]] = None,
+        *,
+        retry: OptionalRetry = gapic_v1.method.DEFAULT,
+        timeout: Union[float, object] = gapic_v1.method.DEFAULT,
+        metadata: Sequence[Tuple[str, str]] = (),
+    ) -> control.GenerateCredentialsResponse:
+        r"""GenerateCredentials provides connection information
+        that allows a user to access the specified membership
+        using Connect Gateway.
+
+        .. code-block:: python
+
+            # This snippet has been automatically generated and should be regarded as a
+            # code template only.
+            # It will require modifications to work:
+            # - It may require correct/in-range values for request initialization.
+            # - It may require specifying regional endpoints when creating the service
+            #   client as shown in:
+            #   https://googleapis.dev/python/google-api-core/latest/client_options.html
+            from google.cloud.gkeconnect import gateway_v1
+
+            async def sample_generate_credentials():
+                # Create a client
+                client = gateway_v1.GatewayControlAsyncClient()
+
+                # Initialize request argument(s)
+                request = gateway_v1.GenerateCredentialsRequest(
+                    name="name_value",
+                )
+
+                # Make the request
+                response = await client.generate_credentials(request=request)
+
+                # Handle the response
+                print(response)
+
+        Args:
+            request (Optional[Union[google.cloud.gkeconnect.gateway_v1.types.GenerateCredentialsRequest, dict]]):
+                The request object. A request for connection information
+                for a particular membership.
+            retry (google.api_core.retry_async.AsyncRetry): Designation of what errors, if any,
+                should be retried.
+            timeout (float): The timeout for this request.
+            metadata (Sequence[Tuple[str, str]]): Strings which should be
+                sent along with the request as metadata.
+
+        Returns:
+            google.cloud.gkeconnect.gateway_v1.types.GenerateCredentialsResponse:
+                Connection information for a
+                particular membership.
+
+        """
+        # Create or coerce a protobuf request object.
+        # - Use the request object if provided (there's no risk of modifying the input as
+        #   there are no flattened fields), or create one.
+        if not isinstance(request, control.GenerateCredentialsRequest):
+            request = control.GenerateCredentialsRequest(request)
+
+        # Wrap the RPC method; this adds retry and timeout information,
+        # and friendly error handling.
+        rpc = self._client._transport._wrapped_methods[
+            self._client._transport.generate_credentials
+        ]
+
+        # Certain fields should be provided within the metadata header;
+        # add these here.
+        metadata = tuple(metadata) + (
+            gapic_v1.routing_header.to_grpc_metadata((("name", request.name),)),
+        )
+
+        # Validate the universe domain.
+        self._client._validate_universe_domain()
+
+        # Send the request.
+        response = await rpc(
+            request,
+            retry=retry,
+            timeout=timeout,
+            metadata=metadata,
+        )
+
+        # Done; return the response.
+        return response
+
+    async def __aenter__(self) -> "GatewayControlAsyncClient":
+        return self
+
+    async def __aexit__(self, exc_type, exc, tb):
+        await self.transport.close()
+
+
+DEFAULT_CLIENT_INFO = gapic_v1.client_info.ClientInfo(
+    gapic_version=package_version.__version__
+)
+
+
+__all__ = ("GatewayControlAsyncClient",)
diff --git a/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1/services/gateway_control/client.py b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1/services/gateway_control/client.py
new file mode 100644
index 000000000000..0f9ff2470144
--- /dev/null
+++ b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1/services/gateway_control/client.py
@@ -0,0 +1,760 @@
+# -*- coding: utf-8 -*-
+# Copyright 2024 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+from collections import OrderedDict
+import os
+import re
+from typing import (
+    Callable,
+    Dict,
+    Mapping,
+    MutableMapping,
+    MutableSequence,
+    Optional,
+    Sequence,
+    Tuple,
+    Type,
+    Union,
+    cast,
+)
+import warnings
+
+from google.api_core import client_options as client_options_lib
+from google.api_core import exceptions as core_exceptions
+from google.api_core import gapic_v1
+from google.api_core import retry as retries
+from google.auth import credentials as ga_credentials  # type: ignore
+from google.auth.exceptions import MutualTLSChannelError  # type: ignore
+from google.auth.transport import mtls  # type: ignore
+from google.auth.transport.grpc import SslCredentials  # type: ignore
+from google.oauth2 import service_account  # type: ignore
+
+from google.cloud.gkeconnect.gateway_v1 import gapic_version as package_version
+
+try:
+    OptionalRetry = Union[retries.Retry, gapic_v1.method._MethodDefault, None]
+except AttributeError:  # pragma: NO COVER
+    OptionalRetry = Union[retries.Retry, object, None]  # type: ignore
+
+from google.cloud.gkeconnect.gateway_v1.types import control
+
+from .transports.base import DEFAULT_CLIENT_INFO, GatewayControlTransport
+from .transports.grpc import GatewayControlGrpcTransport
+from .transports.grpc_asyncio import GatewayControlGrpcAsyncIOTransport
+from .transports.rest import GatewayControlRestTransport
+
+
+class GatewayControlClientMeta(type):
+    """Metaclass for the GatewayControl client.
+
+    This provides class-level methods for building and retrieving
+    support objects (e.g. transport) without polluting the client instance
+    objects.
+    """
+
+    _transport_registry = (
+        OrderedDict()
+    )  # type: Dict[str, Type[GatewayControlTransport]]
+    _transport_registry["grpc"] = GatewayControlGrpcTransport
+    _transport_registry["grpc_asyncio"] = GatewayControlGrpcAsyncIOTransport
+    _transport_registry["rest"] = GatewayControlRestTransport
+
+    def get_transport_class(
+        cls,
+        label: Optional[str] = None,
+    ) -> Type[GatewayControlTransport]:
+        """Returns an appropriate transport class.
+
+        Args:
+            label: The name of the desired transport. If none is
+                provided, then the first transport in the registry is used.
+
+        Returns:
+            The transport class to use.
+        """
+        # If a specific transport is requested, return that one.
+        if label:
+            return cls._transport_registry[label]
+
+        # No transport is requested; return the default (that is, the first one
+        # in the dictionary).
+        return next(iter(cls._transport_registry.values()))
+
+
+class GatewayControlClient(metaclass=GatewayControlClientMeta):
+    """GatewayControl is the control plane API for Connect Gateway."""
+
+    @staticmethod
+    def _get_default_mtls_endpoint(api_endpoint):
+        """Converts api endpoint to mTLS endpoint.
+
+        Convert "*.sandbox.googleapis.com" and "*.googleapis.com" to
+        "*.mtls.sandbox.googleapis.com" and "*.mtls.googleapis.com" respectively.
+        Args:
+            api_endpoint (Optional[str]): the api endpoint to convert.
+        Returns:
+            str: converted mTLS api endpoint.
+        """
+        if not api_endpoint:
+            return api_endpoint
+
+        mtls_endpoint_re = re.compile(
+            r"(?P<name>[^.]+)(?P<mtls>\.mtls)?(?P<sandbox>\.sandbox)?(?P<googledomain>\.googleapis\.com)?"
+        )
+
+        m = mtls_endpoint_re.match(api_endpoint)
+        name, mtls, sandbox, googledomain = m.groups()
+        if mtls or not googledomain:
+            return api_endpoint
+
+        if sandbox:
+            return api_endpoint.replace(
+                "sandbox.googleapis.com", "mtls.sandbox.googleapis.com"
+            )
+
+        return api_endpoint.replace(".googleapis.com", ".mtls.googleapis.com")
+
+    # Note: DEFAULT_ENDPOINT is deprecated. Use _DEFAULT_ENDPOINT_TEMPLATE instead.
+    DEFAULT_ENDPOINT = "connectgateway.googleapis.com"
+    DEFAULT_MTLS_ENDPOINT = _get_default_mtls_endpoint.__func__(  # type: ignore
+        DEFAULT_ENDPOINT
+    )
+
+    _DEFAULT_ENDPOINT_TEMPLATE = "connectgateway.{UNIVERSE_DOMAIN}"
+    _DEFAULT_UNIVERSE = "googleapis.com"
+
+    @classmethod
+    def from_service_account_info(cls, info: dict, *args, **kwargs):
+        """Creates an instance of this client using the provided credentials
+            info.
+
+        Args:
+            info (dict): The service account private key info.
+            args: Additional arguments to pass to the constructor.
+            kwargs: Additional arguments to pass to the constructor.
+
+        Returns:
+            GatewayControlClient: The constructed client.
+        """
+        credentials = service_account.Credentials.from_service_account_info(info)
+        kwargs["credentials"] = credentials
+        return cls(*args, **kwargs)
+
+    @classmethod
+    def from_service_account_file(cls, filename: str, *args, **kwargs):
+        """Creates an instance of this client using the provided credentials
+            file.
+
+        Args:
+            filename (str): The path to the service account private key json
+                file.
+            args: Additional arguments to pass to the constructor.
+            kwargs: Additional arguments to pass to the constructor.
+
+        Returns:
+            GatewayControlClient: The constructed client.
+        """
+        credentials = service_account.Credentials.from_service_account_file(filename)
+        kwargs["credentials"] = credentials
+        return cls(*args, **kwargs)
+
+    from_service_account_json = from_service_account_file
+
+    @property
+    def transport(self) -> GatewayControlTransport:
+        """Returns the transport used by the client instance.
+
+        Returns:
+            GatewayControlTransport: The transport used by the client
+                instance.
+        """
+        return self._transport
+
+    @staticmethod
+    def common_billing_account_path(
+        billing_account: str,
+    ) -> str:
+        """Returns a fully-qualified billing_account string."""
+        return "billingAccounts/{billing_account}".format(
+            billing_account=billing_account,
+        )
+
+    @staticmethod
+    def parse_common_billing_account_path(path: str) -> Dict[str, str]:
+        """Parse a billing_account path into its component segments."""
+        m = re.match(r"^billingAccounts/(?P<billing_account>.+?)$", path)
+        return m.groupdict() if m else {}
+
+    @staticmethod
+    def common_folder_path(
+        folder: str,
+    ) -> str:
+        """Returns a fully-qualified folder string."""
+        return "folders/{folder}".format(
+            folder=folder,
+        )
+
+    @staticmethod
+    def parse_common_folder_path(path: str) -> Dict[str, str]:
+        """Parse a folder path into its component segments."""
+        m = re.match(r"^folders/(?P<folder>.+?)$", path)
+        return m.groupdict() if m else {}
+
+    @staticmethod
+    def common_organization_path(
+        organization: str,
+    ) -> str:
+        """Returns a fully-qualified organization string."""
+        return "organizations/{organization}".format(
+            organization=organization,
+        )
+
+    @staticmethod
+    def parse_common_organization_path(path: str) -> Dict[str, str]:
+        """Parse a organization path into its component segments."""
+        m = re.match(r"^organizations/(?P<organization>.+?)$", path)
+        return m.groupdict() if m else {}
+
+    @staticmethod
+    def common_project_path(
+        project: str,
+    ) -> str:
+        """Returns a fully-qualified project string."""
+        return "projects/{project}".format(
+            project=project,
+        )
+
+    @staticmethod
+    def parse_common_project_path(path: str) -> Dict[str, str]:
+        """Parse a project path into its component segments."""
+        m = re.match(r"^projects/(?P<project>.+?)$", path)
+        return m.groupdict() if m else {}
+
+    @staticmethod
+    def common_location_path(
+        project: str,
+        location: str,
+    ) -> str:
+        """Returns a fully-qualified location string."""
+        return "projects/{project}/locations/{location}".format(
+            project=project,
+            location=location,
+        )
+
+    @staticmethod
+    def parse_common_location_path(path: str) -> Dict[str, str]:
+        """Parse a location path into its component segments."""
+        m = re.match(r"^projects/(?P<project>.+?)/locations/(?P<location>.+?)$", path)
+        return m.groupdict() if m else {}
+
+    @classmethod
+    def get_mtls_endpoint_and_cert_source(
+        cls, client_options: Optional[client_options_lib.ClientOptions] = None
+    ):
+        """Deprecated. Return the API endpoint and client cert source for mutual TLS.
+
+        The client cert source is determined in the following order:
+        (1) if `GOOGLE_API_USE_CLIENT_CERTIFICATE` environment variable is not "true", the
+        client cert source is None.
+        (2) if `client_options.client_cert_source` is provided, use the provided one; if the
+        default client cert source exists, use the default one; otherwise the client cert
+        source is None.
+
+        The API endpoint is determined in the following order:
+        (1) if `client_options.api_endpoint` if provided, use the provided one.
+        (2) if `GOOGLE_API_USE_CLIENT_CERTIFICATE` environment variable is "always", use the
+        default mTLS endpoint; if the environment variable is "never", use the default API
+        endpoint; otherwise if client cert source exists, use the default mTLS endpoint, otherwise
+        use the default API endpoint.
+
+        More details can be found at https://google.aip.dev/auth/4114.
+
+        Args:
+            client_options (google.api_core.client_options.ClientOptions): Custom options for the
+                client. Only the `api_endpoint` and `client_cert_source` properties may be used
+                in this method.
+
+        Returns:
+            Tuple[str, Callable[[], Tuple[bytes, bytes]]]: returns the API endpoint and the
+                client cert source to use.
+
+        Raises:
+            google.auth.exceptions.MutualTLSChannelError: If any errors happen.
+        """
+
+        warnings.warn(
+            "get_mtls_endpoint_and_cert_source is deprecated. Use the api_endpoint property instead.",
+            DeprecationWarning,
+        )
+        if client_options is None:
+            client_options = client_options_lib.ClientOptions()
+        use_client_cert = os.getenv("GOOGLE_API_USE_CLIENT_CERTIFICATE", "false")
+        use_mtls_endpoint = os.getenv("GOOGLE_API_USE_MTLS_ENDPOINT", "auto")
+        if use_client_cert not in ("true", "false"):
+            raise ValueError(
+                "Environment variable `GOOGLE_API_USE_CLIENT_CERTIFICATE` must be either `true` or `false`"
+            )
+        if use_mtls_endpoint not in ("auto", "never", "always"):
+            raise MutualTLSChannelError(
+                "Environment variable `GOOGLE_API_USE_MTLS_ENDPOINT` must be `never`, `auto` or `always`"
+            )
+
+        # Figure out the client cert source to use.
+        client_cert_source = None
+        if use_client_cert == "true":
+            if client_options.client_cert_source:
+                client_cert_source = client_options.client_cert_source
+            elif mtls.has_default_client_cert_source():
+                client_cert_source = mtls.default_client_cert_source()
+
+        # Figure out which api endpoint to use.
+        if client_options.api_endpoint is not None:
+            api_endpoint = client_options.api_endpoint
+        elif use_mtls_endpoint == "always" or (
+            use_mtls_endpoint == "auto" and client_cert_source
+        ):
+            api_endpoint = cls.DEFAULT_MTLS_ENDPOINT
+        else:
+            api_endpoint = cls.DEFAULT_ENDPOINT
+
+        return api_endpoint, client_cert_source
+
+    @staticmethod
+    def _read_environment_variables():
+        """Returns the environment variables used by the client.
+
+        Returns:
+            Tuple[bool, str, str]: returns the GOOGLE_API_USE_CLIENT_CERTIFICATE,
+            GOOGLE_API_USE_MTLS_ENDPOINT, and GOOGLE_CLOUD_UNIVERSE_DOMAIN environment variables.
+
+        Raises:
+            ValueError: If GOOGLE_API_USE_CLIENT_CERTIFICATE is not
+                any of ["true", "false"].
+            google.auth.exceptions.MutualTLSChannelError: If GOOGLE_API_USE_MTLS_ENDPOINT
+                is not any of ["auto", "never", "always"].
+        """
+        use_client_cert = os.getenv(
+            "GOOGLE_API_USE_CLIENT_CERTIFICATE", "false"
+        ).lower()
+        use_mtls_endpoint = os.getenv("GOOGLE_API_USE_MTLS_ENDPOINT", "auto").lower()
+        universe_domain_env = os.getenv("GOOGLE_CLOUD_UNIVERSE_DOMAIN")
+        if use_client_cert not in ("true", "false"):
+            raise ValueError(
+                "Environment variable `GOOGLE_API_USE_CLIENT_CERTIFICATE` must be either `true` or `false`"
+            )
+        if use_mtls_endpoint not in ("auto", "never", "always"):
+            raise MutualTLSChannelError(
+                "Environment variable `GOOGLE_API_USE_MTLS_ENDPOINT` must be `never`, `auto` or `always`"
+            )
+        return use_client_cert == "true", use_mtls_endpoint, universe_domain_env
+
+    @staticmethod
+    def _get_client_cert_source(provided_cert_source, use_cert_flag):
+        """Return the client cert source to be used by the client.
+
+        Args:
+            provided_cert_source (bytes): The client certificate source provided.
+            use_cert_flag (bool): A flag indicating whether to use the client certificate.
+
+        Returns:
+            bytes or None: The client cert source to be used by the client.
+        """
+        client_cert_source = None
+        if use_cert_flag:
+            if provided_cert_source:
+                client_cert_source = provided_cert_source
+            elif mtls.has_default_client_cert_source():
+                client_cert_source = mtls.default_client_cert_source()
+        return client_cert_source
+
+    @staticmethod
+    def _get_api_endpoint(
+        api_override, client_cert_source, universe_domain, use_mtls_endpoint
+    ):
+        """Return the API endpoint used by the client.
+
+        Args:
+            api_override (str): The API endpoint override. If specified, this is always
+                the return value of this function and the other arguments are not used.
+            client_cert_source (bytes): The client certificate source used by the client.
+            universe_domain (str): The universe domain used by the client.
+            use_mtls_endpoint (str): How to use the mTLS endpoint, which depends also on the other parameters.
+                Possible values are "always", "auto", or "never".
+
+        Returns:
+            str: The API endpoint to be used by the client.
+        """
+        if api_override is not None:
+            api_endpoint = api_override
+        elif use_mtls_endpoint == "always" or (
+            use_mtls_endpoint == "auto" and client_cert_source
+        ):
+            _default_universe = GatewayControlClient._DEFAULT_UNIVERSE
+            if universe_domain != _default_universe:
+                raise MutualTLSChannelError(
+                    f"mTLS is not supported in any universe other than {_default_universe}."
+                )
+            api_endpoint = GatewayControlClient.DEFAULT_MTLS_ENDPOINT
+        else:
+            api_endpoint = GatewayControlClient._DEFAULT_ENDPOINT_TEMPLATE.format(
+                UNIVERSE_DOMAIN=universe_domain
+            )
+        return api_endpoint
+
+    @staticmethod
+    def _get_universe_domain(
+        client_universe_domain: Optional[str], universe_domain_env: Optional[str]
+    ) -> str:
+        """Return the universe domain used by the client.
+
+        Args:
+            client_universe_domain (Optional[str]): The universe domain configured via the client options.
+            universe_domain_env (Optional[str]): The universe domain configured via the "GOOGLE_CLOUD_UNIVERSE_DOMAIN" environment variable.
+
+        Returns:
+            str: The universe domain to be used by the client.
+
+        Raises:
+            ValueError: If the universe domain is an empty string.
+        """
+        universe_domain = GatewayControlClient._DEFAULT_UNIVERSE
+        if client_universe_domain is not None:
+            universe_domain = client_universe_domain
+        elif universe_domain_env is not None:
+            universe_domain = universe_domain_env
+        if len(universe_domain.strip()) == 0:
+            raise ValueError("Universe Domain cannot be an empty string.")
+        return universe_domain
+
+    @staticmethod
+    def _compare_universes(
+        client_universe: str, credentials: ga_credentials.Credentials
+    ) -> bool:
+        """Returns True iff the universe domains used by the client and credentials match.
+
+        Args:
+            client_universe (str): The universe domain configured via the client options.
+            credentials (ga_credentials.Credentials): The credentials being used in the client.
+
+        Returns:
+            bool: True iff client_universe matches the universe in credentials.
+
+        Raises:
+            ValueError: when client_universe does not match the universe in credentials.
+        """
+
+        default_universe = GatewayControlClient._DEFAULT_UNIVERSE
+        credentials_universe = getattr(credentials, "universe_domain", default_universe)
+
+        if client_universe != credentials_universe:
+            raise ValueError(
+                "The configured universe domain "
+                f"({client_universe}) does not match the universe domain "
+                f"found in the credentials ({credentials_universe}). "
+                "If you haven't configured the universe domain explicitly, "
+                f"`{default_universe}` is the default."
+            )
+        return True
+
+    def _validate_universe_domain(self):
+        """Validates client's and credentials' universe domains are consistent.
+
+        Returns:
+            bool: True iff the configured universe domain is valid.
+
+        Raises:
+            ValueError: If the configured universe domain is not valid.
+        """
+        self._is_universe_domain_valid = (
+            self._is_universe_domain_valid
+            or GatewayControlClient._compare_universes(
+                self.universe_domain, self.transport._credentials
+            )
+        )
+        return self._is_universe_domain_valid
+
+    @property
+    def api_endpoint(self):
+        """Return the API endpoint used by the client instance.
+
+        Returns:
+            str: The API endpoint used by the client instance.
+        """
+        return self._api_endpoint
+
+    @property
+    def universe_domain(self) -> str:
+        """Return the universe domain used by the client instance.
+
+        Returns:
+            str: The universe domain used by the client instance.
+        """
+        return self._universe_domain
+
+    def __init__(
+        self,
+        *,
+        credentials: Optional[ga_credentials.Credentials] = None,
+        transport: Optional[
+            Union[str, GatewayControlTransport, Callable[..., GatewayControlTransport]]
+        ] = None,
+        client_options: Optional[Union[client_options_lib.ClientOptions, dict]] = None,
+        client_info: gapic_v1.client_info.ClientInfo = DEFAULT_CLIENT_INFO,
+    ) -> None:
+        """Instantiates the gateway control client.
+
+        Args:
+            credentials (Optional[google.auth.credentials.Credentials]): The
+                authorization credentials to attach to requests. These
+                credentials identify the application to the service; if none
+                are specified, the client will attempt to ascertain the
+                credentials from the environment.
+            transport (Optional[Union[str,GatewayControlTransport,Callable[..., GatewayControlTransport]]]):
+                The transport to use, or a Callable that constructs and returns a new transport.
+                If a Callable is given, it will be called with the same set of initialization
+                arguments as used in the GatewayControlTransport constructor.
+                If set to None, a transport is chosen automatically.
+            client_options (Optional[Union[google.api_core.client_options.ClientOptions, dict]]):
+                Custom options for the client.
+
+                1. The ``api_endpoint`` property can be used to override the
+                default endpoint provided by the client when ``transport`` is
+                not explicitly provided. Only if this property is not set and
+                ``transport`` was not explicitly provided, the endpoint is
+                determined by the GOOGLE_API_USE_MTLS_ENDPOINT environment
+                variable, which have one of the following values:
+                "always" (always use the default mTLS endpoint), "never" (always
+                use the default regular endpoint) and "auto" (auto-switch to the
+                default mTLS endpoint if client certificate is present; this is
+                the default value).
+
+                2. If the GOOGLE_API_USE_CLIENT_CERTIFICATE environment variable
+                is "true", then the ``client_cert_source`` property can be used
+                to provide a client certificate for mTLS transport. If
+                not provided, the default SSL client certificate will be used if
+                present. If GOOGLE_API_USE_CLIENT_CERTIFICATE is "false" or not
+                set, no client certificate will be used.
+
+                3. The ``universe_domain`` property can be used to override the
+                default "googleapis.com" universe. Note that the ``api_endpoint``
+                property still takes precedence; and ``universe_domain`` is
+                currently not supported for mTLS.
+
+            client_info (google.api_core.gapic_v1.client_info.ClientInfo):
+                The client info used to send a user-agent string along with
+                API requests. If ``None``, then default info will be used.
+                Generally, you only need to set this if you're developing
+                your own client library.
+
+        Raises:
+            google.auth.exceptions.MutualTLSChannelError: If mutual TLS transport
+                creation failed for any reason.
+        """
+        self._client_options = client_options
+        if isinstance(self._client_options, dict):
+            self._client_options = client_options_lib.from_dict(self._client_options)
+        if self._client_options is None:
+            self._client_options = client_options_lib.ClientOptions()
+        self._client_options = cast(
+            client_options_lib.ClientOptions, self._client_options
+        )
+
+        universe_domain_opt = getattr(self._client_options, "universe_domain", None)
+
+        (
+            self._use_client_cert,
+            self._use_mtls_endpoint,
+            self._universe_domain_env,
+        ) = GatewayControlClient._read_environment_variables()
+        self._client_cert_source = GatewayControlClient._get_client_cert_source(
+            self._client_options.client_cert_source, self._use_client_cert
+        )
+        self._universe_domain = GatewayControlClient._get_universe_domain(
+            universe_domain_opt, self._universe_domain_env
+        )
+        self._api_endpoint = None  # updated below, depending on `transport`
+
+        # Initialize the universe domain validation.
+        self._is_universe_domain_valid = False
+
+        api_key_value = getattr(self._client_options, "api_key", None)
+        if api_key_value and credentials:
+            raise ValueError(
+                "client_options.api_key and credentials are mutually exclusive"
+            )
+
+        # Save or instantiate the transport.
+        # Ordinarily, we provide the transport, but allowing a custom transport
+        # instance provides an extensibility point for unusual situations.
+        transport_provided = isinstance(transport, GatewayControlTransport)
+        if transport_provided:
+            # transport is a GatewayControlTransport instance.
+            if credentials or self._client_options.credentials_file or api_key_value:
+                raise ValueError(
+                    "When providing a transport instance, "
+                    "provide its credentials directly."
+                )
+            if self._client_options.scopes:
+                raise ValueError(
+                    "When providing a transport instance, provide its scopes "
+                    "directly."
+                )
+            self._transport = cast(GatewayControlTransport, transport)
+            self._api_endpoint = self._transport.host
+
+        self._api_endpoint = (
+            self._api_endpoint
+            or GatewayControlClient._get_api_endpoint(
+                self._client_options.api_endpoint,
+                self._client_cert_source,
+                self._universe_domain,
+                self._use_mtls_endpoint,
+            )
+        )
+
+        if not transport_provided:
+            import google.auth._default  # type: ignore
+
+            if api_key_value and hasattr(
+                google.auth._default, "get_api_key_credentials"
+            ):
+                credentials = google.auth._default.get_api_key_credentials(
+                    api_key_value
+                )
+
+            transport_init: Union[
+                Type[GatewayControlTransport], Callable[..., GatewayControlTransport]
+            ] = (
+                GatewayControlClient.get_transport_class(transport)
+                if isinstance(transport, str) or transport is None
+                else cast(Callable[..., GatewayControlTransport], transport)
+            )
+            # initialize with the provided callable or the passed in class
+            self._transport = transport_init(
+                credentials=credentials,
+                credentials_file=self._client_options.credentials_file,
+                host=self._api_endpoint,
+                scopes=self._client_options.scopes,
+                client_cert_source_for_mtls=self._client_cert_source,
+                quota_project_id=self._client_options.quota_project_id,
+                client_info=client_info,
+                always_use_jwt_access=True,
+                api_audience=self._client_options.api_audience,
+            )
+
+    def generate_credentials(
+        self,
+        request: Optional[Union[control.GenerateCredentialsRequest, dict]] = None,
+        *,
+        retry: OptionalRetry = gapic_v1.method.DEFAULT,
+        timeout: Union[float, object] = gapic_v1.method.DEFAULT,
+        metadata: Sequence[Tuple[str, str]] = (),
+    ) -> control.GenerateCredentialsResponse:
+        r"""GenerateCredentials provides connection information
+        that allows a user to access the specified membership
+        using Connect Gateway.
+
+        .. code-block:: python
+
+            # This snippet has been automatically generated and should be regarded as a
+            # code template only.
+            # It will require modifications to work:
+            # - It may require correct/in-range values for request initialization.
+            # - It may require specifying regional endpoints when creating the service
+            #   client as shown in:
+            #   https://googleapis.dev/python/google-api-core/latest/client_options.html
+            from google.cloud.gkeconnect import gateway_v1
+
+            def sample_generate_credentials():
+                # Create a client
+                client = gateway_v1.GatewayControlClient()
+
+                # Initialize request argument(s)
+                request = gateway_v1.GenerateCredentialsRequest(
+                    name="name_value",
+                )
+
+                # Make the request
+                response = client.generate_credentials(request=request)
+
+                # Handle the response
+                print(response)
+
+        Args:
+            request (Union[google.cloud.gkeconnect.gateway_v1.types.GenerateCredentialsRequest, dict]):
+                The request object. A request for connection information
+                for a particular membership.
+            retry (google.api_core.retry.Retry): Designation of what errors, if any,
+                should be retried.
+            timeout (float): The timeout for this request.
+            metadata (Sequence[Tuple[str, str]]): Strings which should be
+                sent along with the request as metadata.
+
+        Returns:
+            google.cloud.gkeconnect.gateway_v1.types.GenerateCredentialsResponse:
+                Connection information for a
+                particular membership.
+
+        """
+        # Create or coerce a protobuf request object.
+        # - Use the request object if provided (there's no risk of modifying the input as
+        #   there are no flattened fields), or create one.
+        if not isinstance(request, control.GenerateCredentialsRequest):
+            request = control.GenerateCredentialsRequest(request)
+
+        # Wrap the RPC method; this adds retry and timeout information,
+        # and friendly error handling.
+        rpc = self._transport._wrapped_methods[self._transport.generate_credentials]
+
+        # Certain fields should be provided within the metadata header;
+        # add these here.
+        metadata = tuple(metadata) + (
+            gapic_v1.routing_header.to_grpc_metadata((("name", request.name),)),
+        )
+
+        # Validate the universe domain.
+        self._validate_universe_domain()
+
+        # Send the request.
+        response = rpc(
+            request,
+            retry=retry,
+            timeout=timeout,
+            metadata=metadata,
+        )
+
+        # Done; return the response.
+        return response
+
+    def __enter__(self) -> "GatewayControlClient":
+        return self
+
+    def __exit__(self, type, value, traceback):
+        """Releases underlying transport's resources.
+
+        .. warning::
+            ONLY use as a context manager if the transport is NOT shared
+            with other clients! Exiting the with block will CLOSE the transport
+            and may cause errors in other clients!
+        """
+        self.transport.close()
+
+
+DEFAULT_CLIENT_INFO = gapic_v1.client_info.ClientInfo(
+    gapic_version=package_version.__version__
+)
+
+
+__all__ = ("GatewayControlClient",)
diff --git a/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1/services/gateway_control/transports/__init__.py b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1/services/gateway_control/transports/__init__.py
new file mode 100644
index 000000000000..bc45ac2893ec
--- /dev/null
+++ b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1/services/gateway_control/transports/__init__.py
@@ -0,0 +1,36 @@
+# -*- coding: utf-8 -*-
+# Copyright 2024 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+from collections import OrderedDict
+from typing import Dict, Type
+
+from .base import GatewayControlTransport
+from .grpc import GatewayControlGrpcTransport
+from .grpc_asyncio import GatewayControlGrpcAsyncIOTransport
+from .rest import GatewayControlRestInterceptor, GatewayControlRestTransport
+
+# Compile a registry of transports.
+_transport_registry = OrderedDict()  # type: Dict[str, Type[GatewayControlTransport]]
+_transport_registry["grpc"] = GatewayControlGrpcTransport
+_transport_registry["grpc_asyncio"] = GatewayControlGrpcAsyncIOTransport
+_transport_registry["rest"] = GatewayControlRestTransport
+
+__all__ = (
+    "GatewayControlTransport",
+    "GatewayControlGrpcTransport",
+    "GatewayControlGrpcAsyncIOTransport",
+    "GatewayControlRestTransport",
+    "GatewayControlRestInterceptor",
+)
diff --git a/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1/services/gateway_control/transports/base.py b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1/services/gateway_control/transports/base.py
new file mode 100644
index 000000000000..0ad0eea11657
--- /dev/null
+++ b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1/services/gateway_control/transports/base.py
@@ -0,0 +1,173 @@
+# -*- coding: utf-8 -*-
+# Copyright 2024 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+import abc
+from typing import Awaitable, Callable, Dict, Optional, Sequence, Union
+
+import google.api_core
+from google.api_core import exceptions as core_exceptions
+from google.api_core import gapic_v1
+from google.api_core import retry as retries
+import google.auth  # type: ignore
+from google.auth import credentials as ga_credentials  # type: ignore
+from google.oauth2 import service_account  # type: ignore
+
+from google.cloud.gkeconnect.gateway_v1 import gapic_version as package_version
+from google.cloud.gkeconnect.gateway_v1.types import control
+
+DEFAULT_CLIENT_INFO = gapic_v1.client_info.ClientInfo(
+    gapic_version=package_version.__version__
+)
+
+
+class GatewayControlTransport(abc.ABC):
+    """Abstract transport class for GatewayControl."""
+
+    AUTH_SCOPES = ("https://www.googleapis.com/auth/cloud-platform",)
+
+    DEFAULT_HOST: str = "connectgateway.googleapis.com"
+
+    def __init__(
+        self,
+        *,
+        host: str = DEFAULT_HOST,
+        credentials: Optional[ga_credentials.Credentials] = None,
+        credentials_file: Optional[str] = None,
+        scopes: Optional[Sequence[str]] = None,
+        quota_project_id: Optional[str] = None,
+        client_info: gapic_v1.client_info.ClientInfo = DEFAULT_CLIENT_INFO,
+        always_use_jwt_access: Optional[bool] = False,
+        api_audience: Optional[str] = None,
+        **kwargs,
+    ) -> None:
+        """Instantiate the transport.
+
+        Args:
+            host (Optional[str]):
+                 The hostname to connect to (default: 'connectgateway.googleapis.com').
+            credentials (Optional[google.auth.credentials.Credentials]): The
+                authorization credentials to attach to requests. These
+                credentials identify the application to the service; if none
+                are specified, the client will attempt to ascertain the
+                credentials from the environment.
+            credentials_file (Optional[str]): A file with credentials that can
+                be loaded with :func:`google.auth.load_credentials_from_file`.
+                This argument is mutually exclusive with credentials.
+            scopes (Optional[Sequence[str]]): A list of scopes.
+            quota_project_id (Optional[str]): An optional project to use for billing
+                and quota.
+            client_info (google.api_core.gapic_v1.client_info.ClientInfo):
+                The client info used to send a user-agent string along with
+                API requests. If ``None``, then default info will be used.
+                Generally, you only need to set this if you're developing
+                your own client library.
+            always_use_jwt_access (Optional[bool]): Whether self signed JWT should
+                be used for service account credentials.
+        """
+
+        scopes_kwargs = {"scopes": scopes, "default_scopes": self.AUTH_SCOPES}
+
+        # Save the scopes.
+        self._scopes = scopes
+        if not hasattr(self, "_ignore_credentials"):
+            self._ignore_credentials: bool = False
+
+        # If no credentials are provided, then determine the appropriate
+        # defaults.
+        if credentials and credentials_file:
+            raise core_exceptions.DuplicateCredentialArgs(
+                "'credentials_file' and 'credentials' are mutually exclusive"
+            )
+
+        if credentials_file is not None:
+            credentials, _ = google.auth.load_credentials_from_file(
+                credentials_file, **scopes_kwargs, quota_project_id=quota_project_id
+            )
+        elif credentials is None and not self._ignore_credentials:
+            credentials, _ = google.auth.default(
+                **scopes_kwargs, quota_project_id=quota_project_id
+            )
+            # Don't apply audience if the credentials file passed from user.
+            if hasattr(credentials, "with_gdch_audience"):
+                credentials = credentials.with_gdch_audience(
+                    api_audience if api_audience else host
+                )
+
+        # If the credentials are service account credentials, then always try to use self signed JWT.
+        if (
+            always_use_jwt_access
+            and isinstance(credentials, service_account.Credentials)
+            and hasattr(service_account.Credentials, "with_always_use_jwt_access")
+        ):
+            credentials = credentials.with_always_use_jwt_access(True)
+
+        # Save the credentials.
+        self._credentials = credentials
+
+        # Save the hostname. Default to port 443 (HTTPS) if none is specified.
+        if ":" not in host:
+            host += ":443"
+        self._host = host
+
+    @property
+    def host(self):
+        return self._host
+
+    def _prep_wrapped_messages(self, client_info):
+        # Precompute the wrapped methods.
+        self._wrapped_methods = {
+            self.generate_credentials: gapic_v1.method.wrap_method(
+                self.generate_credentials,
+                default_retry=retries.Retry(
+                    initial=1.0,
+                    maximum=10.0,
+                    multiplier=1.3,
+                    predicate=retries.if_exception_type(
+                        core_exceptions.ServiceUnavailable,
+                    ),
+                    deadline=60.0,
+                ),
+                default_timeout=60.0,
+                client_info=client_info,
+            ),
+        }
+
+    def close(self):
+        """Closes resources associated with the transport.
+
+        .. warning::
+             Only call this method if the transport is NOT shared
+             with other clients - this may cause errors in other clients!
+        """
+        raise NotImplementedError()
+
+    @property
+    def generate_credentials(
+        self,
+    ) -> Callable[
+        [control.GenerateCredentialsRequest],
+        Union[
+            control.GenerateCredentialsResponse,
+            Awaitable[control.GenerateCredentialsResponse],
+        ],
+    ]:
+        raise NotImplementedError()
+
+    @property
+    def kind(self) -> str:
+        raise NotImplementedError()
+
+
+__all__ = ("GatewayControlTransport",)
diff --git a/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1/services/gateway_control/transports/grpc.py b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1/services/gateway_control/transports/grpc.py
new file mode 100644
index 000000000000..893617331d3d
--- /dev/null
+++ b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1/services/gateway_control/transports/grpc.py
@@ -0,0 +1,275 @@
+# -*- coding: utf-8 -*-
+# Copyright 2024 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+from typing import Callable, Dict, Optional, Sequence, Tuple, Union
+import warnings
+
+from google.api_core import gapic_v1, grpc_helpers
+import google.auth  # type: ignore
+from google.auth import credentials as ga_credentials  # type: ignore
+from google.auth.transport.grpc import SslCredentials  # type: ignore
+import grpc  # type: ignore
+
+from google.cloud.gkeconnect.gateway_v1.types import control
+
+from .base import DEFAULT_CLIENT_INFO, GatewayControlTransport
+
+
+class GatewayControlGrpcTransport(GatewayControlTransport):
+    """gRPC backend transport for GatewayControl.
+
+    GatewayControl is the control plane API for Connect Gateway.
+
+    This class defines the same methods as the primary client, so the
+    primary client can load the underlying transport implementation
+    and call it.
+
+    It sends protocol buffers over the wire using gRPC (which is built on
+    top of HTTP/2); the ``grpcio`` package must be installed.
+    """
+
+    _stubs: Dict[str, Callable]
+
+    def __init__(
+        self,
+        *,
+        host: str = "connectgateway.googleapis.com",
+        credentials: Optional[ga_credentials.Credentials] = None,
+        credentials_file: Optional[str] = None,
+        scopes: Optional[Sequence[str]] = None,
+        channel: Optional[Union[grpc.Channel, Callable[..., grpc.Channel]]] = None,
+        api_mtls_endpoint: Optional[str] = None,
+        client_cert_source: Optional[Callable[[], Tuple[bytes, bytes]]] = None,
+        ssl_channel_credentials: Optional[grpc.ChannelCredentials] = None,
+        client_cert_source_for_mtls: Optional[Callable[[], Tuple[bytes, bytes]]] = None,
+        quota_project_id: Optional[str] = None,
+        client_info: gapic_v1.client_info.ClientInfo = DEFAULT_CLIENT_INFO,
+        always_use_jwt_access: Optional[bool] = False,
+        api_audience: Optional[str] = None,
+    ) -> None:
+        """Instantiate the transport.
+
+        Args:
+            host (Optional[str]):
+                 The hostname to connect to (default: 'connectgateway.googleapis.com').
+            credentials (Optional[google.auth.credentials.Credentials]): The
+                authorization credentials to attach to requests. These
+                credentials identify the application to the service; if none
+                are specified, the client will attempt to ascertain the
+                credentials from the environment.
+                This argument is ignored if a ``channel`` instance is provided.
+            credentials_file (Optional[str]): A file with credentials that can
+                be loaded with :func:`google.auth.load_credentials_from_file`.
+                This argument is ignored if a ``channel`` instance is provided.
+            scopes (Optional(Sequence[str])): A list of scopes. This argument is
+                ignored if a ``channel`` instance is provided.
+            channel (Optional[Union[grpc.Channel, Callable[..., grpc.Channel]]]):
+                A ``Channel`` instance through which to make calls, or a Callable
+                that constructs and returns one. If set to None, ``self.create_channel``
+                is used to create the channel. If a Callable is given, it will be called
+                with the same arguments as used in ``self.create_channel``.
+            api_mtls_endpoint (Optional[str]): Deprecated. The mutual TLS endpoint.
+                If provided, it overrides the ``host`` argument and tries to create
+                a mutual TLS channel with client SSL credentials from
+                ``client_cert_source`` or application default SSL credentials.
+            client_cert_source (Optional[Callable[[], Tuple[bytes, bytes]]]):
+                Deprecated. A callback to provide client SSL certificate bytes and
+                private key bytes, both in PEM format. It is ignored if
+                ``api_mtls_endpoint`` is None.
+            ssl_channel_credentials (grpc.ChannelCredentials): SSL credentials
+                for the grpc channel. It is ignored if a ``channel`` instance is provided.
+            client_cert_source_for_mtls (Optional[Callable[[], Tuple[bytes, bytes]]]):
+                A callback to provide client certificate bytes and private key bytes,
+                both in PEM format. It is used to configure a mutual TLS channel. It is
+                ignored if a ``channel`` instance or ``ssl_channel_credentials`` is provided.
+            quota_project_id (Optional[str]): An optional project to use for billing
+                and quota.
+            client_info (google.api_core.gapic_v1.client_info.ClientInfo):
+                The client info used to send a user-agent string along with
+                API requests. If ``None``, then default info will be used.
+                Generally, you only need to set this if you're developing
+                your own client library.
+            always_use_jwt_access (Optional[bool]): Whether self signed JWT should
+                be used for service account credentials.
+
+        Raises:
+          google.auth.exceptions.MutualTLSChannelError: If mutual TLS transport
+              creation failed for any reason.
+          google.api_core.exceptions.DuplicateCredentialArgs: If both ``credentials``
+              and ``credentials_file`` are passed.
+        """
+        self._grpc_channel = None
+        self._ssl_channel_credentials = ssl_channel_credentials
+        self._stubs: Dict[str, Callable] = {}
+
+        if api_mtls_endpoint:
+            warnings.warn("api_mtls_endpoint is deprecated", DeprecationWarning)
+        if client_cert_source:
+            warnings.warn("client_cert_source is deprecated", DeprecationWarning)
+
+        if isinstance(channel, grpc.Channel):
+            # Ignore credentials if a channel was passed.
+            credentials = None
+            self._ignore_credentials = True
+            # If a channel was explicitly provided, set it.
+            self._grpc_channel = channel
+            self._ssl_channel_credentials = None
+
+        else:
+            if api_mtls_endpoint:
+                host = api_mtls_endpoint
+
+                # Create SSL credentials with client_cert_source or application
+                # default SSL credentials.
+                if client_cert_source:
+                    cert, key = client_cert_source()
+                    self._ssl_channel_credentials = grpc.ssl_channel_credentials(
+                        certificate_chain=cert, private_key=key
+                    )
+                else:
+                    self._ssl_channel_credentials = SslCredentials().ssl_credentials
+
+            else:
+                if client_cert_source_for_mtls and not ssl_channel_credentials:
+                    cert, key = client_cert_source_for_mtls()
+                    self._ssl_channel_credentials = grpc.ssl_channel_credentials(
+                        certificate_chain=cert, private_key=key
+                    )
+
+        # The base transport sets the host, credentials and scopes
+        super().__init__(
+            host=host,
+            credentials=credentials,
+            credentials_file=credentials_file,
+            scopes=scopes,
+            quota_project_id=quota_project_id,
+            client_info=client_info,
+            always_use_jwt_access=always_use_jwt_access,
+            api_audience=api_audience,
+        )
+
+        if not self._grpc_channel:
+            # initialize with the provided callable or the default channel
+            channel_init = channel or type(self).create_channel
+            self._grpc_channel = channel_init(
+                self._host,
+                # use the credentials which are saved
+                credentials=self._credentials,
+                # Set ``credentials_file`` to ``None`` here as
+                # the credentials that we saved earlier should be used.
+                credentials_file=None,
+                scopes=self._scopes,
+                ssl_credentials=self._ssl_channel_credentials,
+                quota_project_id=quota_project_id,
+                options=[
+                    ("grpc.max_send_message_length", -1),
+                    ("grpc.max_receive_message_length", -1),
+                ],
+            )
+
+        # Wrap messages. This must be done after self._grpc_channel exists
+        self._prep_wrapped_messages(client_info)
+
+    @classmethod
+    def create_channel(
+        cls,
+        host: str = "connectgateway.googleapis.com",
+        credentials: Optional[ga_credentials.Credentials] = None,
+        credentials_file: Optional[str] = None,
+        scopes: Optional[Sequence[str]] = None,
+        quota_project_id: Optional[str] = None,
+        **kwargs,
+    ) -> grpc.Channel:
+        """Create and return a gRPC channel object.
+        Args:
+            host (Optional[str]): The host for the channel to use.
+            credentials (Optional[~.Credentials]): The
+                authorization credentials to attach to requests. These
+                credentials identify this application to the service. If
+                none are specified, the client will attempt to ascertain
+                the credentials from the environment.
+            credentials_file (Optional[str]): A file with credentials that can
+                be loaded with :func:`google.auth.load_credentials_from_file`.
+                This argument is mutually exclusive with credentials.
+            scopes (Optional[Sequence[str]]): A optional list of scopes needed for this
+                service. These are only used when credentials are not specified and
+                are passed to :func:`google.auth.default`.
+            quota_project_id (Optional[str]): An optional project to use for billing
+                and quota.
+            kwargs (Optional[dict]): Keyword arguments, which are passed to the
+                channel creation.
+        Returns:
+            grpc.Channel: A gRPC channel object.
+
+        Raises:
+            google.api_core.exceptions.DuplicateCredentialArgs: If both ``credentials``
+              and ``credentials_file`` are passed.
+        """
+
+        return grpc_helpers.create_channel(
+            host,
+            credentials=credentials,
+            credentials_file=credentials_file,
+            quota_project_id=quota_project_id,
+            default_scopes=cls.AUTH_SCOPES,
+            scopes=scopes,
+            default_host=cls.DEFAULT_HOST,
+            **kwargs,
+        )
+
+    @property
+    def grpc_channel(self) -> grpc.Channel:
+        """Return the channel designed to connect to this service."""
+        return self._grpc_channel
+
+    @property
+    def generate_credentials(
+        self,
+    ) -> Callable[
+        [control.GenerateCredentialsRequest], control.GenerateCredentialsResponse
+    ]:
+        r"""Return a callable for the generate credentials method over gRPC.
+
+        GenerateCredentials provides connection information
+        that allows a user to access the specified membership
+        using Connect Gateway.
+
+        Returns:
+            Callable[[~.GenerateCredentialsRequest],
+                    ~.GenerateCredentialsResponse]:
+                A function that, when called, will call the underlying RPC
+                on the server.
+        """
+        # Generate a "stub function" on-the-fly which will actually make
+        # the request.
+        # gRPC handles serialization and deserialization, so we just need
+        # to pass in the functions for each.
+        if "generate_credentials" not in self._stubs:
+            self._stubs["generate_credentials"] = self.grpc_channel.unary_unary(
+                "/google.cloud.gkeconnect.gateway.v1.GatewayControl/GenerateCredentials",
+                request_serializer=control.GenerateCredentialsRequest.serialize,
+                response_deserializer=control.GenerateCredentialsResponse.deserialize,
+            )
+        return self._stubs["generate_credentials"]
+
+    def close(self):
+        self.grpc_channel.close()
+
+    @property
+    def kind(self) -> str:
+        return "grpc"
+
+
+__all__ = ("GatewayControlGrpcTransport",)
diff --git a/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1/services/gateway_control/transports/grpc_asyncio.py b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1/services/gateway_control/transports/grpc_asyncio.py
new file mode 100644
index 000000000000..8f4182cc9522
--- /dev/null
+++ b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1/services/gateway_control/transports/grpc_asyncio.py
@@ -0,0 +1,295 @@
+# -*- coding: utf-8 -*-
+# Copyright 2024 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+from typing import Awaitable, Callable, Dict, Optional, Sequence, Tuple, Union
+import warnings
+
+from google.api_core import exceptions as core_exceptions
+from google.api_core import gapic_v1, grpc_helpers_async
+from google.api_core import retry_async as retries
+from google.auth import credentials as ga_credentials  # type: ignore
+from google.auth.transport.grpc import SslCredentials  # type: ignore
+import grpc  # type: ignore
+from grpc.experimental import aio  # type: ignore
+
+from google.cloud.gkeconnect.gateway_v1.types import control
+
+from .base import DEFAULT_CLIENT_INFO, GatewayControlTransport
+from .grpc import GatewayControlGrpcTransport
+
+
+class GatewayControlGrpcAsyncIOTransport(GatewayControlTransport):
+    """gRPC AsyncIO backend transport for GatewayControl.
+
+    GatewayControl is the control plane API for Connect Gateway.
+
+    This class defines the same methods as the primary client, so the
+    primary client can load the underlying transport implementation
+    and call it.
+
+    It sends protocol buffers over the wire using gRPC (which is built on
+    top of HTTP/2); the ``grpcio`` package must be installed.
+    """
+
+    _grpc_channel: aio.Channel
+    _stubs: Dict[str, Callable] = {}
+
+    @classmethod
+    def create_channel(
+        cls,
+        host: str = "connectgateway.googleapis.com",
+        credentials: Optional[ga_credentials.Credentials] = None,
+        credentials_file: Optional[str] = None,
+        scopes: Optional[Sequence[str]] = None,
+        quota_project_id: Optional[str] = None,
+        **kwargs,
+    ) -> aio.Channel:
+        """Create and return a gRPC AsyncIO channel object.
+        Args:
+            host (Optional[str]): The host for the channel to use.
+            credentials (Optional[~.Credentials]): The
+                authorization credentials to attach to requests. These
+                credentials identify this application to the service. If
+                none are specified, the client will attempt to ascertain
+                the credentials from the environment.
+            credentials_file (Optional[str]): A file with credentials that can
+                be loaded with :func:`google.auth.load_credentials_from_file`.
+            scopes (Optional[Sequence[str]]): A optional list of scopes needed for this
+                service. These are only used when credentials are not specified and
+                are passed to :func:`google.auth.default`.
+            quota_project_id (Optional[str]): An optional project to use for billing
+                and quota.
+            kwargs (Optional[dict]): Keyword arguments, which are passed to the
+                channel creation.
+        Returns:
+            aio.Channel: A gRPC AsyncIO channel object.
+        """
+
+        return grpc_helpers_async.create_channel(
+            host,
+            credentials=credentials,
+            credentials_file=credentials_file,
+            quota_project_id=quota_project_id,
+            default_scopes=cls.AUTH_SCOPES,
+            scopes=scopes,
+            default_host=cls.DEFAULT_HOST,
+            **kwargs,
+        )
+
+    def __init__(
+        self,
+        *,
+        host: str = "connectgateway.googleapis.com",
+        credentials: Optional[ga_credentials.Credentials] = None,
+        credentials_file: Optional[str] = None,
+        scopes: Optional[Sequence[str]] = None,
+        channel: Optional[Union[aio.Channel, Callable[..., aio.Channel]]] = None,
+        api_mtls_endpoint: Optional[str] = None,
+        client_cert_source: Optional[Callable[[], Tuple[bytes, bytes]]] = None,
+        ssl_channel_credentials: Optional[grpc.ChannelCredentials] = None,
+        client_cert_source_for_mtls: Optional[Callable[[], Tuple[bytes, bytes]]] = None,
+        quota_project_id: Optional[str] = None,
+        client_info: gapic_v1.client_info.ClientInfo = DEFAULT_CLIENT_INFO,
+        always_use_jwt_access: Optional[bool] = False,
+        api_audience: Optional[str] = None,
+    ) -> None:
+        """Instantiate the transport.
+
+        Args:
+            host (Optional[str]):
+                 The hostname to connect to (default: 'connectgateway.googleapis.com').
+            credentials (Optional[google.auth.credentials.Credentials]): The
+                authorization credentials to attach to requests. These
+                credentials identify the application to the service; if none
+                are specified, the client will attempt to ascertain the
+                credentials from the environment.
+                This argument is ignored if a ``channel`` instance is provided.
+            credentials_file (Optional[str]): A file with credentials that can
+                be loaded with :func:`google.auth.load_credentials_from_file`.
+                This argument is ignored if a ``channel`` instance is provided.
+            scopes (Optional[Sequence[str]]): A optional list of scopes needed for this
+                service. These are only used when credentials are not specified and
+                are passed to :func:`google.auth.default`.
+            channel (Optional[Union[aio.Channel, Callable[..., aio.Channel]]]):
+                A ``Channel`` instance through which to make calls, or a Callable
+                that constructs and returns one. If set to None, ``self.create_channel``
+                is used to create the channel. If a Callable is given, it will be called
+                with the same arguments as used in ``self.create_channel``.
+            api_mtls_endpoint (Optional[str]): Deprecated. The mutual TLS endpoint.
+                If provided, it overrides the ``host`` argument and tries to create
+                a mutual TLS channel with client SSL credentials from
+                ``client_cert_source`` or application default SSL credentials.
+            client_cert_source (Optional[Callable[[], Tuple[bytes, bytes]]]):
+                Deprecated. A callback to provide client SSL certificate bytes and
+                private key bytes, both in PEM format. It is ignored if
+                ``api_mtls_endpoint`` is None.
+            ssl_channel_credentials (grpc.ChannelCredentials): SSL credentials
+                for the grpc channel. It is ignored if a ``channel`` instance is provided.
+            client_cert_source_for_mtls (Optional[Callable[[], Tuple[bytes, bytes]]]):
+                A callback to provide client certificate bytes and private key bytes,
+                both in PEM format. It is used to configure a mutual TLS channel. It is
+                ignored if a ``channel`` instance or ``ssl_channel_credentials`` is provided.
+            quota_project_id (Optional[str]): An optional project to use for billing
+                and quota.
+            client_info (google.api_core.gapic_v1.client_info.ClientInfo):
+                The client info used to send a user-agent string along with
+                API requests. If ``None``, then default info will be used.
+                Generally, you only need to set this if you're developing
+                your own client library.
+            always_use_jwt_access (Optional[bool]): Whether self signed JWT should
+                be used for service account credentials.
+
+        Raises:
+            google.auth.exceptions.MutualTlsChannelError: If mutual TLS transport
+              creation failed for any reason.
+          google.api_core.exceptions.DuplicateCredentialArgs: If both ``credentials``
+              and ``credentials_file`` are passed.
+        """
+        self._grpc_channel = None
+        self._ssl_channel_credentials = ssl_channel_credentials
+        self._stubs: Dict[str, Callable] = {}
+
+        if api_mtls_endpoint:
+            warnings.warn("api_mtls_endpoint is deprecated", DeprecationWarning)
+        if client_cert_source:
+            warnings.warn("client_cert_source is deprecated", DeprecationWarning)
+
+        if isinstance(channel, aio.Channel):
+            # Ignore credentials if a channel was passed.
+            credentials = None
+            self._ignore_credentials = True
+            # If a channel was explicitly provided, set it.
+            self._grpc_channel = channel
+            self._ssl_channel_credentials = None
+        else:
+            if api_mtls_endpoint:
+                host = api_mtls_endpoint
+
+                # Create SSL credentials with client_cert_source or application
+                # default SSL credentials.
+                if client_cert_source:
+                    cert, key = client_cert_source()
+                    self._ssl_channel_credentials = grpc.ssl_channel_credentials(
+                        certificate_chain=cert, private_key=key
+                    )
+                else:
+                    self._ssl_channel_credentials = SslCredentials().ssl_credentials
+
+            else:
+                if client_cert_source_for_mtls and not ssl_channel_credentials:
+                    cert, key = client_cert_source_for_mtls()
+                    self._ssl_channel_credentials = grpc.ssl_channel_credentials(
+                        certificate_chain=cert, private_key=key
+                    )
+
+        # The base transport sets the host, credentials and scopes
+        super().__init__(
+            host=host,
+            credentials=credentials,
+            credentials_file=credentials_file,
+            scopes=scopes,
+            quota_project_id=quota_project_id,
+            client_info=client_info,
+            always_use_jwt_access=always_use_jwt_access,
+            api_audience=api_audience,
+        )
+
+        if not self._grpc_channel:
+            # initialize with the provided callable or the default channel
+            channel_init = channel or type(self).create_channel
+            self._grpc_channel = channel_init(
+                self._host,
+                # use the credentials which are saved
+                credentials=self._credentials,
+                # Set ``credentials_file`` to ``None`` here as
+                # the credentials that we saved earlier should be used.
+                credentials_file=None,
+                scopes=self._scopes,
+                ssl_credentials=self._ssl_channel_credentials,
+                quota_project_id=quota_project_id,
+                options=[
+                    ("grpc.max_send_message_length", -1),
+                    ("grpc.max_receive_message_length", -1),
+                ],
+            )
+
+        # Wrap messages. This must be done after self._grpc_channel exists
+        self._prep_wrapped_messages(client_info)
+
+    @property
+    def grpc_channel(self) -> aio.Channel:
+        """Create the channel designed to connect to this service.
+
+        This property caches on the instance; repeated calls return
+        the same channel.
+        """
+        # Return the channel from cache.
+        return self._grpc_channel
+
+    @property
+    def generate_credentials(
+        self,
+    ) -> Callable[
+        [control.GenerateCredentialsRequest],
+        Awaitable[control.GenerateCredentialsResponse],
+    ]:
+        r"""Return a callable for the generate credentials method over gRPC.
+
+        GenerateCredentials provides connection information
+        that allows a user to access the specified membership
+        using Connect Gateway.
+
+        Returns:
+            Callable[[~.GenerateCredentialsRequest],
+                    Awaitable[~.GenerateCredentialsResponse]]:
+                A function that, when called, will call the underlying RPC
+                on the server.
+        """
+        # Generate a "stub function" on-the-fly which will actually make
+        # the request.
+        # gRPC handles serialization and deserialization, so we just need
+        # to pass in the functions for each.
+        if "generate_credentials" not in self._stubs:
+            self._stubs["generate_credentials"] = self.grpc_channel.unary_unary(
+                "/google.cloud.gkeconnect.gateway.v1.GatewayControl/GenerateCredentials",
+                request_serializer=control.GenerateCredentialsRequest.serialize,
+                response_deserializer=control.GenerateCredentialsResponse.deserialize,
+            )
+        return self._stubs["generate_credentials"]
+
+    def _prep_wrapped_messages(self, client_info):
+        """Precompute the wrapped methods, overriding the base class method to use async wrappers."""
+        self._wrapped_methods = {
+            self.generate_credentials: gapic_v1.method_async.wrap_method(
+                self.generate_credentials,
+                default_retry=retries.AsyncRetry(
+                    initial=1.0,
+                    maximum=10.0,
+                    multiplier=1.3,
+                    predicate=retries.if_exception_type(
+                        core_exceptions.ServiceUnavailable,
+                    ),
+                    deadline=60.0,
+                ),
+                default_timeout=60.0,
+                client_info=client_info,
+            ),
+        }
+
+    def close(self):
+        return self.grpc_channel.close()
+
+
+__all__ = ("GatewayControlGrpcAsyncIOTransport",)
diff --git a/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1/services/gateway_control/transports/rest.py b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1/services/gateway_control/transports/rest.py
new file mode 100644
index 000000000000..de0570c0ecdb
--- /dev/null
+++ b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1/services/gateway_control/transports/rest.py
@@ -0,0 +1,308 @@
+# -*- coding: utf-8 -*-
+# Copyright 2024 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+import dataclasses
+import json  # type: ignore
+import re
+from typing import Any, Callable, Dict, List, Optional, Sequence, Tuple, Union
+import warnings
+
+from google.api_core import gapic_v1, path_template, rest_helpers, rest_streaming
+from google.api_core import exceptions as core_exceptions
+from google.api_core import retry as retries
+from google.auth import credentials as ga_credentials  # type: ignore
+from google.auth.transport.grpc import SslCredentials  # type: ignore
+from google.auth.transport.requests import AuthorizedSession  # type: ignore
+from google.protobuf import json_format
+import grpc  # type: ignore
+from requests import __version__ as requests_version
+
+try:
+    OptionalRetry = Union[retries.Retry, gapic_v1.method._MethodDefault, None]
+except AttributeError:  # pragma: NO COVER
+    OptionalRetry = Union[retries.Retry, object, None]  # type: ignore
+
+
+from google.cloud.gkeconnect.gateway_v1.types import control
+
+from .base import DEFAULT_CLIENT_INFO as BASE_DEFAULT_CLIENT_INFO
+from .base import GatewayControlTransport
+
+DEFAULT_CLIENT_INFO = gapic_v1.client_info.ClientInfo(
+    gapic_version=BASE_DEFAULT_CLIENT_INFO.gapic_version,
+    grpc_version=None,
+    rest_version=requests_version,
+)
+
+
+class GatewayControlRestInterceptor:
+    """Interceptor for GatewayControl.
+
+    Interceptors are used to manipulate requests, request metadata, and responses
+    in arbitrary ways.
+    Example use cases include:
+    * Logging
+    * Verifying requests according to service or custom semantics
+    * Stripping extraneous information from responses
+
+    These use cases and more can be enabled by injecting an
+    instance of a custom subclass when constructing the GatewayControlRestTransport.
+
+    .. code-block:: python
+        class MyCustomGatewayControlInterceptor(GatewayControlRestInterceptor):
+            def pre_generate_credentials(self, request, metadata):
+                logging.log(f"Received request: {request}")
+                return request, metadata
+
+            def post_generate_credentials(self, response):
+                logging.log(f"Received response: {response}")
+                return response
+
+        transport = GatewayControlRestTransport(interceptor=MyCustomGatewayControlInterceptor())
+        client = GatewayControlClient(transport=transport)
+
+
+    """
+
+    def pre_generate_credentials(
+        self,
+        request: control.GenerateCredentialsRequest,
+        metadata: Sequence[Tuple[str, str]],
+    ) -> Tuple[control.GenerateCredentialsRequest, Sequence[Tuple[str, str]]]:
+        """Pre-rpc interceptor for generate_credentials
+
+        Override in a subclass to manipulate the request or metadata
+        before they are sent to the GatewayControl server.
+        """
+        return request, metadata
+
+    def post_generate_credentials(
+        self, response: control.GenerateCredentialsResponse
+    ) -> control.GenerateCredentialsResponse:
+        """Post-rpc interceptor for generate_credentials
+
+        Override in a subclass to manipulate the response
+        after it is returned by the GatewayControl server but before
+        it is returned to user code.
+        """
+        return response
+
+
+@dataclasses.dataclass
+class GatewayControlRestStub:
+    _session: AuthorizedSession
+    _host: str
+    _interceptor: GatewayControlRestInterceptor
+
+
+class GatewayControlRestTransport(GatewayControlTransport):
+    """REST backend transport for GatewayControl.
+
+    GatewayControl is the control plane API for Connect Gateway.
+
+    This class defines the same methods as the primary client, so the
+    primary client can load the underlying transport implementation
+    and call it.
+
+    It sends JSON representations of protocol buffers over HTTP/1.1
+
+    """
+
+    def __init__(
+        self,
+        *,
+        host: str = "connectgateway.googleapis.com",
+        credentials: Optional[ga_credentials.Credentials] = None,
+        credentials_file: Optional[str] = None,
+        scopes: Optional[Sequence[str]] = None,
+        client_cert_source_for_mtls: Optional[Callable[[], Tuple[bytes, bytes]]] = None,
+        quota_project_id: Optional[str] = None,
+        client_info: gapic_v1.client_info.ClientInfo = DEFAULT_CLIENT_INFO,
+        always_use_jwt_access: Optional[bool] = False,
+        url_scheme: str = "https",
+        interceptor: Optional[GatewayControlRestInterceptor] = None,
+        api_audience: Optional[str] = None,
+    ) -> None:
+        """Instantiate the transport.
+
+        Args:
+            host (Optional[str]):
+                 The hostname to connect to (default: 'connectgateway.googleapis.com').
+            credentials (Optional[google.auth.credentials.Credentials]): The
+                authorization credentials to attach to requests. These
+                credentials identify the application to the service; if none
+                are specified, the client will attempt to ascertain the
+                credentials from the environment.
+
+            credentials_file (Optional[str]): A file with credentials that can
+                be loaded with :func:`google.auth.load_credentials_from_file`.
+                This argument is ignored if ``channel`` is provided.
+            scopes (Optional(Sequence[str])): A list of scopes. This argument is
+                ignored if ``channel`` is provided.
+            client_cert_source_for_mtls (Callable[[], Tuple[bytes, bytes]]): Client
+                certificate to configure mutual TLS HTTP channel. It is ignored
+                if ``channel`` is provided.
+            quota_project_id (Optional[str]): An optional project to use for billing
+                and quota.
+            client_info (google.api_core.gapic_v1.client_info.ClientInfo):
+                The client info used to send a user-agent string along with
+                API requests. If ``None``, then default info will be used.
+                Generally, you only need to set this if you are developing
+                your own client library.
+            always_use_jwt_access (Optional[bool]): Whether self signed JWT should
+                be used for service account credentials.
+            url_scheme: the protocol scheme for the API endpoint.  Normally
+                "https", but for testing or local servers,
+                "http" can be specified.
+        """
+        # Run the base constructor
+        # TODO(yon-mg): resolve other ctor params i.e. scopes, quota, etc.
+        # TODO: When custom host (api_endpoint) is set, `scopes` must *also* be set on the
+        # credentials object
+        maybe_url_match = re.match("^(?P<scheme>http(?:s)?://)?(?P<host>.*)$", host)
+        if maybe_url_match is None:
+            raise ValueError(
+                f"Unexpected hostname structure: {host}"
+            )  # pragma: NO COVER
+
+        url_match_items = maybe_url_match.groupdict()
+
+        host = f"{url_scheme}://{host}" if not url_match_items["scheme"] else host
+
+        super().__init__(
+            host=host,
+            credentials=credentials,
+            client_info=client_info,
+            always_use_jwt_access=always_use_jwt_access,
+            api_audience=api_audience,
+        )
+        self._session = AuthorizedSession(
+            self._credentials, default_host=self.DEFAULT_HOST
+        )
+        if client_cert_source_for_mtls:
+            self._session.configure_mtls_channel(client_cert_source_for_mtls)
+        self._interceptor = interceptor or GatewayControlRestInterceptor()
+        self._prep_wrapped_messages(client_info)
+
+    class _GenerateCredentials(GatewayControlRestStub):
+        def __hash__(self):
+            return hash("GenerateCredentials")
+
+        __REQUIRED_FIELDS_DEFAULT_VALUES: Dict[str, Any] = {}
+
+        @classmethod
+        def _get_unset_required_fields(cls, message_dict):
+            return {
+                k: v
+                for k, v in cls.__REQUIRED_FIELDS_DEFAULT_VALUES.items()
+                if k not in message_dict
+            }
+
+        def __call__(
+            self,
+            request: control.GenerateCredentialsRequest,
+            *,
+            retry: OptionalRetry = gapic_v1.method.DEFAULT,
+            timeout: Optional[float] = None,
+            metadata: Sequence[Tuple[str, str]] = (),
+        ) -> control.GenerateCredentialsResponse:
+            r"""Call the generate credentials method over HTTP.
+
+            Args:
+                request (~.control.GenerateCredentialsRequest):
+                    The request object. A request for connection information
+                for a particular membership.
+                retry (google.api_core.retry.Retry): Designation of what errors, if any,
+                    should be retried.
+                timeout (float): The timeout for this request.
+                metadata (Sequence[Tuple[str, str]]): Strings which should be
+                    sent along with the request as metadata.
+
+            Returns:
+                ~.control.GenerateCredentialsResponse:
+                    Connection information for a
+                particular membership.
+
+            """
+
+            http_options: List[Dict[str, str]] = [
+                {
+                    "method": "get",
+                    "uri": "/v1/{name=projects/*/locations/*/memberships/*}:generateCredentials",
+                },
+            ]
+            request, metadata = self._interceptor.pre_generate_credentials(
+                request, metadata
+            )
+            pb_request = control.GenerateCredentialsRequest.pb(request)
+            transcoded_request = path_template.transcode(http_options, pb_request)
+
+            uri = transcoded_request["uri"]
+            method = transcoded_request["method"]
+
+            # Jsonify the query params
+            query_params = json.loads(
+                json_format.MessageToJson(
+                    transcoded_request["query_params"],
+                    use_integers_for_enums=True,
+                )
+            )
+            query_params.update(self._get_unset_required_fields(query_params))
+
+            query_params["$alt"] = "json;enum-encoding=int"
+
+            # Send the request
+            headers = dict(metadata)
+            headers["Content-Type"] = "application/json"
+            response = getattr(self._session, method)(
+                "{host}{uri}".format(host=self._host, uri=uri),
+                timeout=timeout,
+                headers=headers,
+                params=rest_helpers.flatten_query_params(query_params, strict=True),
+            )
+
+            # In case of error, raise the appropriate core_exceptions.GoogleAPICallError exception
+            # subclass.
+            if response.status_code >= 400:
+                raise core_exceptions.from_http_response(response)
+
+            # Return the response
+            resp = control.GenerateCredentialsResponse()
+            pb_resp = control.GenerateCredentialsResponse.pb(resp)
+
+            json_format.Parse(response.content, pb_resp, ignore_unknown_fields=True)
+            resp = self._interceptor.post_generate_credentials(resp)
+            return resp
+
+    @property
+    def generate_credentials(
+        self,
+    ) -> Callable[
+        [control.GenerateCredentialsRequest], control.GenerateCredentialsResponse
+    ]:
+        # The return type is fine, but mypy isn't sophisticated enough to determine what's going on here.
+        # In C++ this would require a dynamic_cast
+        return self._GenerateCredentials(self._session, self._host, self._interceptor)  # type: ignore
+
+    @property
+    def kind(self) -> str:
+        return "rest"
+
+    def close(self):
+        self._session.close()
+
+
+__all__ = ("GatewayControlRestTransport",)
diff --git a/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/types/gateway.py b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1/types/__init__.py
similarity index 77%
rename from packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/types/gateway.py
rename to packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1/types/__init__.py
index ca8527fb89ec..2bfb31823e04 100644
--- a/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/types/gateway.py
+++ b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1/types/__init__.py
@@ -13,12 +13,9 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-import proto  # type: ignore
+from .control import GenerateCredentialsRequest, GenerateCredentialsResponse
 
-__protobuf__ = proto.module(
-    package="google.cloud.gkeconnect.gateway.v1beta1",
-    manifest={},
+__all__ = (
+    "GenerateCredentialsRequest",
+    "GenerateCredentialsResponse",
 )
-
-
-__all__ = tuple(sorted(__protobuf__.manifest))
diff --git a/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1/types/control.py b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1/types/control.py
new file mode 100644
index 000000000000..71e358d796f7
--- /dev/null
+++ b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1/types/control.py
@@ -0,0 +1,123 @@
+# -*- coding: utf-8 -*-
+# Copyright 2024 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+from __future__ import annotations
+
+from typing import MutableMapping, MutableSequence
+
+import proto  # type: ignore
+
+__protobuf__ = proto.module(
+    package="google.cloud.gkeconnect.gateway.v1",
+    manifest={
+        "GenerateCredentialsRequest",
+        "GenerateCredentialsResponse",
+    },
+)
+
+
+class GenerateCredentialsRequest(proto.Message):
+    r"""A request for connection information for a particular
+    membership.
+
+    Attributes:
+        name (str):
+            Required. The Fleet membership resource.
+        force_use_agent (bool):
+            Optional. Whether to force the use of Connect
+            Agent-based transport.
+            This will return a configuration that uses
+            Connect Agent as the underlying transport
+            mechanism for cluster types that would otherwise
+            have used a different transport. Requires that
+            Connect Agent be installed on the cluster.
+            Setting this field to false is equivalent to not
+            setting it.
+        version (str):
+            Optional. The Connect Gateway version to be
+            used in the resulting configuration.
+
+            Leave this field blank to let the server choose
+            the version (recommended).
+        kubernetes_namespace (str):
+            Optional. The namespace to use in the kubeconfig context.
+
+            If this field is specified, the server will set the
+            ``namespace`` field in kubeconfig context. If not specified,
+            the ``namespace`` field is omitted.
+        operating_system (google.cloud.gkeconnect.gateway_v1.types.GenerateCredentialsRequest.OperatingSystem):
+            Optional. The operating system where the
+            kubeconfig will be used.
+    """
+
+    class OperatingSystem(proto.Enum):
+        r"""Operating systems requiring specialized kubeconfigs.
+
+        Values:
+            OPERATING_SYSTEM_UNSPECIFIED (0):
+                Generates a kubeconfig that works for all
+                operating systems not defined below.
+            OPERATING_SYSTEM_WINDOWS (1):
+                Generates a kubeconfig that is specifically
+                designed to work with Windows.
+        """
+        OPERATING_SYSTEM_UNSPECIFIED = 0
+        OPERATING_SYSTEM_WINDOWS = 1
+
+    name: str = proto.Field(
+        proto.STRING,
+        number=1,
+    )
+    force_use_agent: bool = proto.Field(
+        proto.BOOL,
+        number=2,
+    )
+    version: str = proto.Field(
+        proto.STRING,
+        number=3,
+    )
+    kubernetes_namespace: str = proto.Field(
+        proto.STRING,
+        number=4,
+    )
+    operating_system: OperatingSystem = proto.Field(
+        proto.ENUM,
+        number=5,
+        enum=OperatingSystem,
+    )
+
+
+class GenerateCredentialsResponse(proto.Message):
+    r"""Connection information for a particular membership.
+
+    Attributes:
+        kubeconfig (bytes):
+            A full YAML kubeconfig in serialized format.
+        endpoint (str):
+            The generated URI of the cluster as accessed
+            through the Connect Gateway API.
+    """
+
+    kubeconfig: bytes = proto.Field(
+        proto.BYTES,
+        number=1,
+    )
+    endpoint: str = proto.Field(
+        proto.STRING,
+        number=2,
+    )
+
+
+__all__ = tuple(sorted(__protobuf__.manifest))
diff --git a/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/__init__.py b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/__init__.py
index d16e8a461ad2..f58bb78cb5e7 100644
--- a/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/__init__.py
+++ b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/__init__.py
@@ -18,9 +18,12 @@
 __version__ = package_version.__version__
 
 
-from .services.gateway_service import GatewayServiceAsyncClient, GatewayServiceClient
+from .services.gateway_control import GatewayControlAsyncClient, GatewayControlClient
+from .types.control import GenerateCredentialsRequest, GenerateCredentialsResponse
 
 __all__ = (
-    "GatewayServiceAsyncClient",
-    "GatewayServiceClient",
+    "GatewayControlAsyncClient",
+    "GatewayControlClient",
+    "GenerateCredentialsRequest",
+    "GenerateCredentialsResponse",
 )
diff --git a/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/gapic_metadata.json b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/gapic_metadata.json
index 38a616fb276e..33fee488e86c 100644
--- a/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/gapic_metadata.json
+++ b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/gapic_metadata.json
@@ -5,64 +5,24 @@
   "protoPackage": "google.cloud.gkeconnect.gateway.v1beta1",
   "schema": "1.0",
   "services": {
-    "GatewayService": {
+    "GatewayControl": {
       "clients": {
         "grpc": {
-          "libraryClient": "GatewayServiceClient",
+          "libraryClient": "GatewayControlClient",
           "rpcs": {
-            "DeleteResource": {
+            "GenerateCredentials": {
               "methods": [
-                "delete_resource"
-              ]
-            },
-            "GetResource": {
-              "methods": [
-                "get_resource"
-              ]
-            },
-            "PatchResource": {
-              "methods": [
-                "patch_resource"
-              ]
-            },
-            "PostResource": {
-              "methods": [
-                "post_resource"
-              ]
-            },
-            "PutResource": {
-              "methods": [
-                "put_resource"
+                "generate_credentials"
               ]
             }
           }
         },
         "grpc-async": {
-          "libraryClient": "GatewayServiceAsyncClient",
+          "libraryClient": "GatewayControlAsyncClient",
           "rpcs": {
-            "DeleteResource": {
-              "methods": [
-                "delete_resource"
-              ]
-            },
-            "GetResource": {
-              "methods": [
-                "get_resource"
-              ]
-            },
-            "PatchResource": {
-              "methods": [
-                "patch_resource"
-              ]
-            },
-            "PostResource": {
-              "methods": [
-                "post_resource"
-              ]
-            },
-            "PutResource": {
+            "GenerateCredentials": {
               "methods": [
-                "put_resource"
+                "generate_credentials"
               ]
             }
           }
diff --git a/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/gapic_version.py b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/gapic_version.py
index 558c8aab67c5..a4e5ba3ce496 100644
--- a/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/gapic_version.py
+++ b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "0.0.0"  # {x-release-please-version}
+__version__ = "0.9.0"  # {x-release-please-version}
diff --git a/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/services/gateway_control/__init__.py b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/services/gateway_control/__init__.py
new file mode 100644
index 000000000000..6d98a5d3aec9
--- /dev/null
+++ b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/services/gateway_control/__init__.py
@@ -0,0 +1,22 @@
+# -*- coding: utf-8 -*-
+# Copyright 2024 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+from .async_client import GatewayControlAsyncClient
+from .client import GatewayControlClient
+
+__all__ = (
+    "GatewayControlClient",
+    "GatewayControlAsyncClient",
+)
diff --git a/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/services/gateway_control/async_client.py b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/services/gateway_control/async_client.py
new file mode 100644
index 000000000000..a00f6b015f62
--- /dev/null
+++ b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/services/gateway_control/async_client.py
@@ -0,0 +1,352 @@
+# -*- coding: utf-8 -*-
+# Copyright 2024 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+from collections import OrderedDict
+import re
+from typing import (
+    Callable,
+    Dict,
+    Mapping,
+    MutableMapping,
+    MutableSequence,
+    Optional,
+    Sequence,
+    Tuple,
+    Type,
+    Union,
+)
+
+from google.api_core import exceptions as core_exceptions
+from google.api_core import gapic_v1
+from google.api_core import retry_async as retries
+from google.api_core.client_options import ClientOptions
+from google.auth import credentials as ga_credentials  # type: ignore
+from google.oauth2 import service_account  # type: ignore
+
+from google.cloud.gkeconnect.gateway_v1beta1 import gapic_version as package_version
+
+try:
+    OptionalRetry = Union[retries.AsyncRetry, gapic_v1.method._MethodDefault, None]
+except AttributeError:  # pragma: NO COVER
+    OptionalRetry = Union[retries.AsyncRetry, object, None]  # type: ignore
+
+from google.cloud.gkeconnect.gateway_v1beta1.types import control
+
+from .client import GatewayControlClient
+from .transports.base import DEFAULT_CLIENT_INFO, GatewayControlTransport
+from .transports.grpc_asyncio import GatewayControlGrpcAsyncIOTransport
+
+
+class GatewayControlAsyncClient:
+    """GatewayControl is the control plane API for Connect Gateway."""
+
+    _client: GatewayControlClient
+
+    # Copy defaults from the synchronous client for use here.
+    # Note: DEFAULT_ENDPOINT is deprecated. Use _DEFAULT_ENDPOINT_TEMPLATE instead.
+    DEFAULT_ENDPOINT = GatewayControlClient.DEFAULT_ENDPOINT
+    DEFAULT_MTLS_ENDPOINT = GatewayControlClient.DEFAULT_MTLS_ENDPOINT
+    _DEFAULT_ENDPOINT_TEMPLATE = GatewayControlClient._DEFAULT_ENDPOINT_TEMPLATE
+    _DEFAULT_UNIVERSE = GatewayControlClient._DEFAULT_UNIVERSE
+
+    common_billing_account_path = staticmethod(
+        GatewayControlClient.common_billing_account_path
+    )
+    parse_common_billing_account_path = staticmethod(
+        GatewayControlClient.parse_common_billing_account_path
+    )
+    common_folder_path = staticmethod(GatewayControlClient.common_folder_path)
+    parse_common_folder_path = staticmethod(
+        GatewayControlClient.parse_common_folder_path
+    )
+    common_organization_path = staticmethod(
+        GatewayControlClient.common_organization_path
+    )
+    parse_common_organization_path = staticmethod(
+        GatewayControlClient.parse_common_organization_path
+    )
+    common_project_path = staticmethod(GatewayControlClient.common_project_path)
+    parse_common_project_path = staticmethod(
+        GatewayControlClient.parse_common_project_path
+    )
+    common_location_path = staticmethod(GatewayControlClient.common_location_path)
+    parse_common_location_path = staticmethod(
+        GatewayControlClient.parse_common_location_path
+    )
+
+    @classmethod
+    def from_service_account_info(cls, info: dict, *args, **kwargs):
+        """Creates an instance of this client using the provided credentials
+            info.
+
+        Args:
+            info (dict): The service account private key info.
+            args: Additional arguments to pass to the constructor.
+            kwargs: Additional arguments to pass to the constructor.
+
+        Returns:
+            GatewayControlAsyncClient: The constructed client.
+        """
+        return GatewayControlClient.from_service_account_info.__func__(GatewayControlAsyncClient, info, *args, **kwargs)  # type: ignore
+
+    @classmethod
+    def from_service_account_file(cls, filename: str, *args, **kwargs):
+        """Creates an instance of this client using the provided credentials
+            file.
+
+        Args:
+            filename (str): The path to the service account private key json
+                file.
+            args: Additional arguments to pass to the constructor.
+            kwargs: Additional arguments to pass to the constructor.
+
+        Returns:
+            GatewayControlAsyncClient: The constructed client.
+        """
+        return GatewayControlClient.from_service_account_file.__func__(GatewayControlAsyncClient, filename, *args, **kwargs)  # type: ignore
+
+    from_service_account_json = from_service_account_file
+
+    @classmethod
+    def get_mtls_endpoint_and_cert_source(
+        cls, client_options: Optional[ClientOptions] = None
+    ):
+        """Return the API endpoint and client cert source for mutual TLS.
+
+        The client cert source is determined in the following order:
+        (1) if `GOOGLE_API_USE_CLIENT_CERTIFICATE` environment variable is not "true", the
+        client cert source is None.
+        (2) if `client_options.client_cert_source` is provided, use the provided one; if the
+        default client cert source exists, use the default one; otherwise the client cert
+        source is None.
+
+        The API endpoint is determined in the following order:
+        (1) if `client_options.api_endpoint` if provided, use the provided one.
+        (2) if `GOOGLE_API_USE_CLIENT_CERTIFICATE` environment variable is "always", use the
+        default mTLS endpoint; if the environment variable is "never", use the default API
+        endpoint; otherwise if client cert source exists, use the default mTLS endpoint, otherwise
+        use the default API endpoint.
+
+        More details can be found at https://google.aip.dev/auth/4114.
+
+        Args:
+            client_options (google.api_core.client_options.ClientOptions): Custom options for the
+                client. Only the `api_endpoint` and `client_cert_source` properties may be used
+                in this method.
+
+        Returns:
+            Tuple[str, Callable[[], Tuple[bytes, bytes]]]: returns the API endpoint and the
+                client cert source to use.
+
+        Raises:
+            google.auth.exceptions.MutualTLSChannelError: If any errors happen.
+        """
+        return GatewayControlClient.get_mtls_endpoint_and_cert_source(client_options)  # type: ignore
+
+    @property
+    def transport(self) -> GatewayControlTransport:
+        """Returns the transport used by the client instance.
+
+        Returns:
+            GatewayControlTransport: The transport used by the client instance.
+        """
+        return self._client.transport
+
+    @property
+    def api_endpoint(self):
+        """Return the API endpoint used by the client instance.
+
+        Returns:
+            str: The API endpoint used by the client instance.
+        """
+        return self._client._api_endpoint
+
+    @property
+    def universe_domain(self) -> str:
+        """Return the universe domain used by the client instance.
+
+        Returns:
+            str: The universe domain used
+                by the client instance.
+        """
+        return self._client._universe_domain
+
+    get_transport_class = GatewayControlClient.get_transport_class
+
+    def __init__(
+        self,
+        *,
+        credentials: Optional[ga_credentials.Credentials] = None,
+        transport: Optional[
+            Union[str, GatewayControlTransport, Callable[..., GatewayControlTransport]]
+        ] = "grpc_asyncio",
+        client_options: Optional[ClientOptions] = None,
+        client_info: gapic_v1.client_info.ClientInfo = DEFAULT_CLIENT_INFO,
+    ) -> None:
+        """Instantiates the gateway control async client.
+
+        Args:
+            credentials (Optional[google.auth.credentials.Credentials]): The
+                authorization credentials to attach to requests. These
+                credentials identify the application to the service; if none
+                are specified, the client will attempt to ascertain the
+                credentials from the environment.
+            transport (Optional[Union[str,GatewayControlTransport,Callable[..., GatewayControlTransport]]]):
+                The transport to use, or a Callable that constructs and returns a new transport to use.
+                If a Callable is given, it will be called with the same set of initialization
+                arguments as used in the GatewayControlTransport constructor.
+                If set to None, a transport is chosen automatically.
+            client_options (Optional[Union[google.api_core.client_options.ClientOptions, dict]]):
+                Custom options for the client.
+
+                1. The ``api_endpoint`` property can be used to override the
+                default endpoint provided by the client when ``transport`` is
+                not explicitly provided. Only if this property is not set and
+                ``transport`` was not explicitly provided, the endpoint is
+                determined by the GOOGLE_API_USE_MTLS_ENDPOINT environment
+                variable, which have one of the following values:
+                "always" (always use the default mTLS endpoint), "never" (always
+                use the default regular endpoint) and "auto" (auto-switch to the
+                default mTLS endpoint if client certificate is present; this is
+                the default value).
+
+                2. If the GOOGLE_API_USE_CLIENT_CERTIFICATE environment variable
+                is "true", then the ``client_cert_source`` property can be used
+                to provide a client certificate for mTLS transport. If
+                not provided, the default SSL client certificate will be used if
+                present. If GOOGLE_API_USE_CLIENT_CERTIFICATE is "false" or not
+                set, no client certificate will be used.
+
+                3. The ``universe_domain`` property can be used to override the
+                default "googleapis.com" universe. Note that ``api_endpoint``
+                property still takes precedence; and ``universe_domain`` is
+                currently not supported for mTLS.
+
+            client_info (google.api_core.gapic_v1.client_info.ClientInfo):
+                The client info used to send a user-agent string along with
+                API requests. If ``None``, then default info will be used.
+                Generally, you only need to set this if you're developing
+                your own client library.
+
+        Raises:
+            google.auth.exceptions.MutualTlsChannelError: If mutual TLS transport
+                creation failed for any reason.
+        """
+        self._client = GatewayControlClient(
+            credentials=credentials,
+            transport=transport,
+            client_options=client_options,
+            client_info=client_info,
+        )
+
+    async def generate_credentials(
+        self,
+        request: Optional[Union[control.GenerateCredentialsRequest, dict]] = None,
+        *,
+        retry: OptionalRetry = gapic_v1.method.DEFAULT,
+        timeout: Union[float, object] = gapic_v1.method.DEFAULT,
+        metadata: Sequence[Tuple[str, str]] = (),
+    ) -> control.GenerateCredentialsResponse:
+        r"""GenerateCredentials provides connection information
+        that allows a user to access the specified membership
+        using Connect Gateway.
+
+        .. code-block:: python
+
+            # This snippet has been automatically generated and should be regarded as a
+            # code template only.
+            # It will require modifications to work:
+            # - It may require correct/in-range values for request initialization.
+            # - It may require specifying regional endpoints when creating the service
+            #   client as shown in:
+            #   https://googleapis.dev/python/google-api-core/latest/client_options.html
+            from google.cloud.gkeconnect import gateway_v1beta1
+
+            async def sample_generate_credentials():
+                # Create a client
+                client = gateway_v1beta1.GatewayControlAsyncClient()
+
+                # Initialize request argument(s)
+                request = gateway_v1beta1.GenerateCredentialsRequest(
+                    name="name_value",
+                )
+
+                # Make the request
+                response = await client.generate_credentials(request=request)
+
+                # Handle the response
+                print(response)
+
+        Args:
+            request (Optional[Union[google.cloud.gkeconnect.gateway_v1beta1.types.GenerateCredentialsRequest, dict]]):
+                The request object. A request for connection information
+                for a particular membership.
+            retry (google.api_core.retry_async.AsyncRetry): Designation of what errors, if any,
+                should be retried.
+            timeout (float): The timeout for this request.
+            metadata (Sequence[Tuple[str, str]]): Strings which should be
+                sent along with the request as metadata.
+
+        Returns:
+            google.cloud.gkeconnect.gateway_v1beta1.types.GenerateCredentialsResponse:
+                Connection information for a
+                particular membership.
+
+        """
+        # Create or coerce a protobuf request object.
+        # - Use the request object if provided (there's no risk of modifying the input as
+        #   there are no flattened fields), or create one.
+        if not isinstance(request, control.GenerateCredentialsRequest):
+            request = control.GenerateCredentialsRequest(request)
+
+        # Wrap the RPC method; this adds retry and timeout information,
+        # and friendly error handling.
+        rpc = self._client._transport._wrapped_methods[
+            self._client._transport.generate_credentials
+        ]
+
+        # Certain fields should be provided within the metadata header;
+        # add these here.
+        metadata = tuple(metadata) + (
+            gapic_v1.routing_header.to_grpc_metadata((("name", request.name),)),
+        )
+
+        # Validate the universe domain.
+        self._client._validate_universe_domain()
+
+        # Send the request.
+        response = await rpc(
+            request,
+            retry=retry,
+            timeout=timeout,
+            metadata=metadata,
+        )
+
+        # Done; return the response.
+        return response
+
+    async def __aenter__(self) -> "GatewayControlAsyncClient":
+        return self
+
+    async def __aexit__(self, exc_type, exc, tb):
+        await self.transport.close()
+
+
+DEFAULT_CLIENT_INFO = gapic_v1.client_info.ClientInfo(
+    gapic_version=package_version.__version__
+)
+
+
+__all__ = ("GatewayControlAsyncClient",)
diff --git a/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/services/gateway_control/client.py b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/services/gateway_control/client.py
new file mode 100644
index 000000000000..be9bc2efdcf0
--- /dev/null
+++ b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/services/gateway_control/client.py
@@ -0,0 +1,758 @@
+# -*- coding: utf-8 -*-
+# Copyright 2024 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+from collections import OrderedDict
+import os
+import re
+from typing import (
+    Callable,
+    Dict,
+    Mapping,
+    MutableMapping,
+    MutableSequence,
+    Optional,
+    Sequence,
+    Tuple,
+    Type,
+    Union,
+    cast,
+)
+import warnings
+
+from google.api_core import client_options as client_options_lib
+from google.api_core import exceptions as core_exceptions
+from google.api_core import gapic_v1
+from google.api_core import retry as retries
+from google.auth import credentials as ga_credentials  # type: ignore
+from google.auth.exceptions import MutualTLSChannelError  # type: ignore
+from google.auth.transport import mtls  # type: ignore
+from google.auth.transport.grpc import SslCredentials  # type: ignore
+from google.oauth2 import service_account  # type: ignore
+
+from google.cloud.gkeconnect.gateway_v1beta1 import gapic_version as package_version
+
+try:
+    OptionalRetry = Union[retries.Retry, gapic_v1.method._MethodDefault, None]
+except AttributeError:  # pragma: NO COVER
+    OptionalRetry = Union[retries.Retry, object, None]  # type: ignore
+
+from google.cloud.gkeconnect.gateway_v1beta1.types import control
+
+from .transports.base import DEFAULT_CLIENT_INFO, GatewayControlTransport
+from .transports.grpc import GatewayControlGrpcTransport
+from .transports.grpc_asyncio import GatewayControlGrpcAsyncIOTransport
+
+
+class GatewayControlClientMeta(type):
+    """Metaclass for the GatewayControl client.
+
+    This provides class-level methods for building and retrieving
+    support objects (e.g. transport) without polluting the client instance
+    objects.
+    """
+
+    _transport_registry = (
+        OrderedDict()
+    )  # type: Dict[str, Type[GatewayControlTransport]]
+    _transport_registry["grpc"] = GatewayControlGrpcTransport
+    _transport_registry["grpc_asyncio"] = GatewayControlGrpcAsyncIOTransport
+
+    def get_transport_class(
+        cls,
+        label: Optional[str] = None,
+    ) -> Type[GatewayControlTransport]:
+        """Returns an appropriate transport class.
+
+        Args:
+            label: The name of the desired transport. If none is
+                provided, then the first transport in the registry is used.
+
+        Returns:
+            The transport class to use.
+        """
+        # If a specific transport is requested, return that one.
+        if label:
+            return cls._transport_registry[label]
+
+        # No transport is requested; return the default (that is, the first one
+        # in the dictionary).
+        return next(iter(cls._transport_registry.values()))
+
+
+class GatewayControlClient(metaclass=GatewayControlClientMeta):
+    """GatewayControl is the control plane API for Connect Gateway."""
+
+    @staticmethod
+    def _get_default_mtls_endpoint(api_endpoint):
+        """Converts api endpoint to mTLS endpoint.
+
+        Convert "*.sandbox.googleapis.com" and "*.googleapis.com" to
+        "*.mtls.sandbox.googleapis.com" and "*.mtls.googleapis.com" respectively.
+        Args:
+            api_endpoint (Optional[str]): the api endpoint to convert.
+        Returns:
+            str: converted mTLS api endpoint.
+        """
+        if not api_endpoint:
+            return api_endpoint
+
+        mtls_endpoint_re = re.compile(
+            r"(?P<name>[^.]+)(?P<mtls>\.mtls)?(?P<sandbox>\.sandbox)?(?P<googledomain>\.googleapis\.com)?"
+        )
+
+        m = mtls_endpoint_re.match(api_endpoint)
+        name, mtls, sandbox, googledomain = m.groups()
+        if mtls or not googledomain:
+            return api_endpoint
+
+        if sandbox:
+            return api_endpoint.replace(
+                "sandbox.googleapis.com", "mtls.sandbox.googleapis.com"
+            )
+
+        return api_endpoint.replace(".googleapis.com", ".mtls.googleapis.com")
+
+    # Note: DEFAULT_ENDPOINT is deprecated. Use _DEFAULT_ENDPOINT_TEMPLATE instead.
+    DEFAULT_ENDPOINT = "connectgateway.googleapis.com"
+    DEFAULT_MTLS_ENDPOINT = _get_default_mtls_endpoint.__func__(  # type: ignore
+        DEFAULT_ENDPOINT
+    )
+
+    _DEFAULT_ENDPOINT_TEMPLATE = "connectgateway.{UNIVERSE_DOMAIN}"
+    _DEFAULT_UNIVERSE = "googleapis.com"
+
+    @classmethod
+    def from_service_account_info(cls, info: dict, *args, **kwargs):
+        """Creates an instance of this client using the provided credentials
+            info.
+
+        Args:
+            info (dict): The service account private key info.
+            args: Additional arguments to pass to the constructor.
+            kwargs: Additional arguments to pass to the constructor.
+
+        Returns:
+            GatewayControlClient: The constructed client.
+        """
+        credentials = service_account.Credentials.from_service_account_info(info)
+        kwargs["credentials"] = credentials
+        return cls(*args, **kwargs)
+
+    @classmethod
+    def from_service_account_file(cls, filename: str, *args, **kwargs):
+        """Creates an instance of this client using the provided credentials
+            file.
+
+        Args:
+            filename (str): The path to the service account private key json
+                file.
+            args: Additional arguments to pass to the constructor.
+            kwargs: Additional arguments to pass to the constructor.
+
+        Returns:
+            GatewayControlClient: The constructed client.
+        """
+        credentials = service_account.Credentials.from_service_account_file(filename)
+        kwargs["credentials"] = credentials
+        return cls(*args, **kwargs)
+
+    from_service_account_json = from_service_account_file
+
+    @property
+    def transport(self) -> GatewayControlTransport:
+        """Returns the transport used by the client instance.
+
+        Returns:
+            GatewayControlTransport: The transport used by the client
+                instance.
+        """
+        return self._transport
+
+    @staticmethod
+    def common_billing_account_path(
+        billing_account: str,
+    ) -> str:
+        """Returns a fully-qualified billing_account string."""
+        return "billingAccounts/{billing_account}".format(
+            billing_account=billing_account,
+        )
+
+    @staticmethod
+    def parse_common_billing_account_path(path: str) -> Dict[str, str]:
+        """Parse a billing_account path into its component segments."""
+        m = re.match(r"^billingAccounts/(?P<billing_account>.+?)$", path)
+        return m.groupdict() if m else {}
+
+    @staticmethod
+    def common_folder_path(
+        folder: str,
+    ) -> str:
+        """Returns a fully-qualified folder string."""
+        return "folders/{folder}".format(
+            folder=folder,
+        )
+
+    @staticmethod
+    def parse_common_folder_path(path: str) -> Dict[str, str]:
+        """Parse a folder path into its component segments."""
+        m = re.match(r"^folders/(?P<folder>.+?)$", path)
+        return m.groupdict() if m else {}
+
+    @staticmethod
+    def common_organization_path(
+        organization: str,
+    ) -> str:
+        """Returns a fully-qualified organization string."""
+        return "organizations/{organization}".format(
+            organization=organization,
+        )
+
+    @staticmethod
+    def parse_common_organization_path(path: str) -> Dict[str, str]:
+        """Parse a organization path into its component segments."""
+        m = re.match(r"^organizations/(?P<organization>.+?)$", path)
+        return m.groupdict() if m else {}
+
+    @staticmethod
+    def common_project_path(
+        project: str,
+    ) -> str:
+        """Returns a fully-qualified project string."""
+        return "projects/{project}".format(
+            project=project,
+        )
+
+    @staticmethod
+    def parse_common_project_path(path: str) -> Dict[str, str]:
+        """Parse a project path into its component segments."""
+        m = re.match(r"^projects/(?P<project>.+?)$", path)
+        return m.groupdict() if m else {}
+
+    @staticmethod
+    def common_location_path(
+        project: str,
+        location: str,
+    ) -> str:
+        """Returns a fully-qualified location string."""
+        return "projects/{project}/locations/{location}".format(
+            project=project,
+            location=location,
+        )
+
+    @staticmethod
+    def parse_common_location_path(path: str) -> Dict[str, str]:
+        """Parse a location path into its component segments."""
+        m = re.match(r"^projects/(?P<project>.+?)/locations/(?P<location>.+?)$", path)
+        return m.groupdict() if m else {}
+
+    @classmethod
+    def get_mtls_endpoint_and_cert_source(
+        cls, client_options: Optional[client_options_lib.ClientOptions] = None
+    ):
+        """Deprecated. Return the API endpoint and client cert source for mutual TLS.
+
+        The client cert source is determined in the following order:
+        (1) if `GOOGLE_API_USE_CLIENT_CERTIFICATE` environment variable is not "true", the
+        client cert source is None.
+        (2) if `client_options.client_cert_source` is provided, use the provided one; if the
+        default client cert source exists, use the default one; otherwise the client cert
+        source is None.
+
+        The API endpoint is determined in the following order:
+        (1) if `client_options.api_endpoint` if provided, use the provided one.
+        (2) if `GOOGLE_API_USE_CLIENT_CERTIFICATE` environment variable is "always", use the
+        default mTLS endpoint; if the environment variable is "never", use the default API
+        endpoint; otherwise if client cert source exists, use the default mTLS endpoint, otherwise
+        use the default API endpoint.
+
+        More details can be found at https://google.aip.dev/auth/4114.
+
+        Args:
+            client_options (google.api_core.client_options.ClientOptions): Custom options for the
+                client. Only the `api_endpoint` and `client_cert_source` properties may be used
+                in this method.
+
+        Returns:
+            Tuple[str, Callable[[], Tuple[bytes, bytes]]]: returns the API endpoint and the
+                client cert source to use.
+
+        Raises:
+            google.auth.exceptions.MutualTLSChannelError: If any errors happen.
+        """
+
+        warnings.warn(
+            "get_mtls_endpoint_and_cert_source is deprecated. Use the api_endpoint property instead.",
+            DeprecationWarning,
+        )
+        if client_options is None:
+            client_options = client_options_lib.ClientOptions()
+        use_client_cert = os.getenv("GOOGLE_API_USE_CLIENT_CERTIFICATE", "false")
+        use_mtls_endpoint = os.getenv("GOOGLE_API_USE_MTLS_ENDPOINT", "auto")
+        if use_client_cert not in ("true", "false"):
+            raise ValueError(
+                "Environment variable `GOOGLE_API_USE_CLIENT_CERTIFICATE` must be either `true` or `false`"
+            )
+        if use_mtls_endpoint not in ("auto", "never", "always"):
+            raise MutualTLSChannelError(
+                "Environment variable `GOOGLE_API_USE_MTLS_ENDPOINT` must be `never`, `auto` or `always`"
+            )
+
+        # Figure out the client cert source to use.
+        client_cert_source = None
+        if use_client_cert == "true":
+            if client_options.client_cert_source:
+                client_cert_source = client_options.client_cert_source
+            elif mtls.has_default_client_cert_source():
+                client_cert_source = mtls.default_client_cert_source()
+
+        # Figure out which api endpoint to use.
+        if client_options.api_endpoint is not None:
+            api_endpoint = client_options.api_endpoint
+        elif use_mtls_endpoint == "always" or (
+            use_mtls_endpoint == "auto" and client_cert_source
+        ):
+            api_endpoint = cls.DEFAULT_MTLS_ENDPOINT
+        else:
+            api_endpoint = cls.DEFAULT_ENDPOINT
+
+        return api_endpoint, client_cert_source
+
+    @staticmethod
+    def _read_environment_variables():
+        """Returns the environment variables used by the client.
+
+        Returns:
+            Tuple[bool, str, str]: returns the GOOGLE_API_USE_CLIENT_CERTIFICATE,
+            GOOGLE_API_USE_MTLS_ENDPOINT, and GOOGLE_CLOUD_UNIVERSE_DOMAIN environment variables.
+
+        Raises:
+            ValueError: If GOOGLE_API_USE_CLIENT_CERTIFICATE is not
+                any of ["true", "false"].
+            google.auth.exceptions.MutualTLSChannelError: If GOOGLE_API_USE_MTLS_ENDPOINT
+                is not any of ["auto", "never", "always"].
+        """
+        use_client_cert = os.getenv(
+            "GOOGLE_API_USE_CLIENT_CERTIFICATE", "false"
+        ).lower()
+        use_mtls_endpoint = os.getenv("GOOGLE_API_USE_MTLS_ENDPOINT", "auto").lower()
+        universe_domain_env = os.getenv("GOOGLE_CLOUD_UNIVERSE_DOMAIN")
+        if use_client_cert not in ("true", "false"):
+            raise ValueError(
+                "Environment variable `GOOGLE_API_USE_CLIENT_CERTIFICATE` must be either `true` or `false`"
+            )
+        if use_mtls_endpoint not in ("auto", "never", "always"):
+            raise MutualTLSChannelError(
+                "Environment variable `GOOGLE_API_USE_MTLS_ENDPOINT` must be `never`, `auto` or `always`"
+            )
+        return use_client_cert == "true", use_mtls_endpoint, universe_domain_env
+
+    @staticmethod
+    def _get_client_cert_source(provided_cert_source, use_cert_flag):
+        """Return the client cert source to be used by the client.
+
+        Args:
+            provided_cert_source (bytes): The client certificate source provided.
+            use_cert_flag (bool): A flag indicating whether to use the client certificate.
+
+        Returns:
+            bytes or None: The client cert source to be used by the client.
+        """
+        client_cert_source = None
+        if use_cert_flag:
+            if provided_cert_source:
+                client_cert_source = provided_cert_source
+            elif mtls.has_default_client_cert_source():
+                client_cert_source = mtls.default_client_cert_source()
+        return client_cert_source
+
+    @staticmethod
+    def _get_api_endpoint(
+        api_override, client_cert_source, universe_domain, use_mtls_endpoint
+    ):
+        """Return the API endpoint used by the client.
+
+        Args:
+            api_override (str): The API endpoint override. If specified, this is always
+                the return value of this function and the other arguments are not used.
+            client_cert_source (bytes): The client certificate source used by the client.
+            universe_domain (str): The universe domain used by the client.
+            use_mtls_endpoint (str): How to use the mTLS endpoint, which depends also on the other parameters.
+                Possible values are "always", "auto", or "never".
+
+        Returns:
+            str: The API endpoint to be used by the client.
+        """
+        if api_override is not None:
+            api_endpoint = api_override
+        elif use_mtls_endpoint == "always" or (
+            use_mtls_endpoint == "auto" and client_cert_source
+        ):
+            _default_universe = GatewayControlClient._DEFAULT_UNIVERSE
+            if universe_domain != _default_universe:
+                raise MutualTLSChannelError(
+                    f"mTLS is not supported in any universe other than {_default_universe}."
+                )
+            api_endpoint = GatewayControlClient.DEFAULT_MTLS_ENDPOINT
+        else:
+            api_endpoint = GatewayControlClient._DEFAULT_ENDPOINT_TEMPLATE.format(
+                UNIVERSE_DOMAIN=universe_domain
+            )
+        return api_endpoint
+
+    @staticmethod
+    def _get_universe_domain(
+        client_universe_domain: Optional[str], universe_domain_env: Optional[str]
+    ) -> str:
+        """Return the universe domain used by the client.
+
+        Args:
+            client_universe_domain (Optional[str]): The universe domain configured via the client options.
+            universe_domain_env (Optional[str]): The universe domain configured via the "GOOGLE_CLOUD_UNIVERSE_DOMAIN" environment variable.
+
+        Returns:
+            str: The universe domain to be used by the client.
+
+        Raises:
+            ValueError: If the universe domain is an empty string.
+        """
+        universe_domain = GatewayControlClient._DEFAULT_UNIVERSE
+        if client_universe_domain is not None:
+            universe_domain = client_universe_domain
+        elif universe_domain_env is not None:
+            universe_domain = universe_domain_env
+        if len(universe_domain.strip()) == 0:
+            raise ValueError("Universe Domain cannot be an empty string.")
+        return universe_domain
+
+    @staticmethod
+    def _compare_universes(
+        client_universe: str, credentials: ga_credentials.Credentials
+    ) -> bool:
+        """Returns True iff the universe domains used by the client and credentials match.
+
+        Args:
+            client_universe (str): The universe domain configured via the client options.
+            credentials (ga_credentials.Credentials): The credentials being used in the client.
+
+        Returns:
+            bool: True iff client_universe matches the universe in credentials.
+
+        Raises:
+            ValueError: when client_universe does not match the universe in credentials.
+        """
+
+        default_universe = GatewayControlClient._DEFAULT_UNIVERSE
+        credentials_universe = getattr(credentials, "universe_domain", default_universe)
+
+        if client_universe != credentials_universe:
+            raise ValueError(
+                "The configured universe domain "
+                f"({client_universe}) does not match the universe domain "
+                f"found in the credentials ({credentials_universe}). "
+                "If you haven't configured the universe domain explicitly, "
+                f"`{default_universe}` is the default."
+            )
+        return True
+
+    def _validate_universe_domain(self):
+        """Validates client's and credentials' universe domains are consistent.
+
+        Returns:
+            bool: True iff the configured universe domain is valid.
+
+        Raises:
+            ValueError: If the configured universe domain is not valid.
+        """
+        self._is_universe_domain_valid = (
+            self._is_universe_domain_valid
+            or GatewayControlClient._compare_universes(
+                self.universe_domain, self.transport._credentials
+            )
+        )
+        return self._is_universe_domain_valid
+
+    @property
+    def api_endpoint(self):
+        """Return the API endpoint used by the client instance.
+
+        Returns:
+            str: The API endpoint used by the client instance.
+        """
+        return self._api_endpoint
+
+    @property
+    def universe_domain(self) -> str:
+        """Return the universe domain used by the client instance.
+
+        Returns:
+            str: The universe domain used by the client instance.
+        """
+        return self._universe_domain
+
+    def __init__(
+        self,
+        *,
+        credentials: Optional[ga_credentials.Credentials] = None,
+        transport: Optional[
+            Union[str, GatewayControlTransport, Callable[..., GatewayControlTransport]]
+        ] = None,
+        client_options: Optional[Union[client_options_lib.ClientOptions, dict]] = None,
+        client_info: gapic_v1.client_info.ClientInfo = DEFAULT_CLIENT_INFO,
+    ) -> None:
+        """Instantiates the gateway control client.
+
+        Args:
+            credentials (Optional[google.auth.credentials.Credentials]): The
+                authorization credentials to attach to requests. These
+                credentials identify the application to the service; if none
+                are specified, the client will attempt to ascertain the
+                credentials from the environment.
+            transport (Optional[Union[str,GatewayControlTransport,Callable[..., GatewayControlTransport]]]):
+                The transport to use, or a Callable that constructs and returns a new transport.
+                If a Callable is given, it will be called with the same set of initialization
+                arguments as used in the GatewayControlTransport constructor.
+                If set to None, a transport is chosen automatically.
+            client_options (Optional[Union[google.api_core.client_options.ClientOptions, dict]]):
+                Custom options for the client.
+
+                1. The ``api_endpoint`` property can be used to override the
+                default endpoint provided by the client when ``transport`` is
+                not explicitly provided. Only if this property is not set and
+                ``transport`` was not explicitly provided, the endpoint is
+                determined by the GOOGLE_API_USE_MTLS_ENDPOINT environment
+                variable, which have one of the following values:
+                "always" (always use the default mTLS endpoint), "never" (always
+                use the default regular endpoint) and "auto" (auto-switch to the
+                default mTLS endpoint if client certificate is present; this is
+                the default value).
+
+                2. If the GOOGLE_API_USE_CLIENT_CERTIFICATE environment variable
+                is "true", then the ``client_cert_source`` property can be used
+                to provide a client certificate for mTLS transport. If
+                not provided, the default SSL client certificate will be used if
+                present. If GOOGLE_API_USE_CLIENT_CERTIFICATE is "false" or not
+                set, no client certificate will be used.
+
+                3. The ``universe_domain`` property can be used to override the
+                default "googleapis.com" universe. Note that the ``api_endpoint``
+                property still takes precedence; and ``universe_domain`` is
+                currently not supported for mTLS.
+
+            client_info (google.api_core.gapic_v1.client_info.ClientInfo):
+                The client info used to send a user-agent string along with
+                API requests. If ``None``, then default info will be used.
+                Generally, you only need to set this if you're developing
+                your own client library.
+
+        Raises:
+            google.auth.exceptions.MutualTLSChannelError: If mutual TLS transport
+                creation failed for any reason.
+        """
+        self._client_options = client_options
+        if isinstance(self._client_options, dict):
+            self._client_options = client_options_lib.from_dict(self._client_options)
+        if self._client_options is None:
+            self._client_options = client_options_lib.ClientOptions()
+        self._client_options = cast(
+            client_options_lib.ClientOptions, self._client_options
+        )
+
+        universe_domain_opt = getattr(self._client_options, "universe_domain", None)
+
+        (
+            self._use_client_cert,
+            self._use_mtls_endpoint,
+            self._universe_domain_env,
+        ) = GatewayControlClient._read_environment_variables()
+        self._client_cert_source = GatewayControlClient._get_client_cert_source(
+            self._client_options.client_cert_source, self._use_client_cert
+        )
+        self._universe_domain = GatewayControlClient._get_universe_domain(
+            universe_domain_opt, self._universe_domain_env
+        )
+        self._api_endpoint = None  # updated below, depending on `transport`
+
+        # Initialize the universe domain validation.
+        self._is_universe_domain_valid = False
+
+        api_key_value = getattr(self._client_options, "api_key", None)
+        if api_key_value and credentials:
+            raise ValueError(
+                "client_options.api_key and credentials are mutually exclusive"
+            )
+
+        # Save or instantiate the transport.
+        # Ordinarily, we provide the transport, but allowing a custom transport
+        # instance provides an extensibility point for unusual situations.
+        transport_provided = isinstance(transport, GatewayControlTransport)
+        if transport_provided:
+            # transport is a GatewayControlTransport instance.
+            if credentials or self._client_options.credentials_file or api_key_value:
+                raise ValueError(
+                    "When providing a transport instance, "
+                    "provide its credentials directly."
+                )
+            if self._client_options.scopes:
+                raise ValueError(
+                    "When providing a transport instance, provide its scopes "
+                    "directly."
+                )
+            self._transport = cast(GatewayControlTransport, transport)
+            self._api_endpoint = self._transport.host
+
+        self._api_endpoint = (
+            self._api_endpoint
+            or GatewayControlClient._get_api_endpoint(
+                self._client_options.api_endpoint,
+                self._client_cert_source,
+                self._universe_domain,
+                self._use_mtls_endpoint,
+            )
+        )
+
+        if not transport_provided:
+            import google.auth._default  # type: ignore
+
+            if api_key_value and hasattr(
+                google.auth._default, "get_api_key_credentials"
+            ):
+                credentials = google.auth._default.get_api_key_credentials(
+                    api_key_value
+                )
+
+            transport_init: Union[
+                Type[GatewayControlTransport], Callable[..., GatewayControlTransport]
+            ] = (
+                GatewayControlClient.get_transport_class(transport)
+                if isinstance(transport, str) or transport is None
+                else cast(Callable[..., GatewayControlTransport], transport)
+            )
+            # initialize with the provided callable or the passed in class
+            self._transport = transport_init(
+                credentials=credentials,
+                credentials_file=self._client_options.credentials_file,
+                host=self._api_endpoint,
+                scopes=self._client_options.scopes,
+                client_cert_source_for_mtls=self._client_cert_source,
+                quota_project_id=self._client_options.quota_project_id,
+                client_info=client_info,
+                always_use_jwt_access=True,
+                api_audience=self._client_options.api_audience,
+            )
+
+    def generate_credentials(
+        self,
+        request: Optional[Union[control.GenerateCredentialsRequest, dict]] = None,
+        *,
+        retry: OptionalRetry = gapic_v1.method.DEFAULT,
+        timeout: Union[float, object] = gapic_v1.method.DEFAULT,
+        metadata: Sequence[Tuple[str, str]] = (),
+    ) -> control.GenerateCredentialsResponse:
+        r"""GenerateCredentials provides connection information
+        that allows a user to access the specified membership
+        using Connect Gateway.
+
+        .. code-block:: python
+
+            # This snippet has been automatically generated and should be regarded as a
+            # code template only.
+            # It will require modifications to work:
+            # - It may require correct/in-range values for request initialization.
+            # - It may require specifying regional endpoints when creating the service
+            #   client as shown in:
+            #   https://googleapis.dev/python/google-api-core/latest/client_options.html
+            from google.cloud.gkeconnect import gateway_v1beta1
+
+            def sample_generate_credentials():
+                # Create a client
+                client = gateway_v1beta1.GatewayControlClient()
+
+                # Initialize request argument(s)
+                request = gateway_v1beta1.GenerateCredentialsRequest(
+                    name="name_value",
+                )
+
+                # Make the request
+                response = client.generate_credentials(request=request)
+
+                # Handle the response
+                print(response)
+
+        Args:
+            request (Union[google.cloud.gkeconnect.gateway_v1beta1.types.GenerateCredentialsRequest, dict]):
+                The request object. A request for connection information
+                for a particular membership.
+            retry (google.api_core.retry.Retry): Designation of what errors, if any,
+                should be retried.
+            timeout (float): The timeout for this request.
+            metadata (Sequence[Tuple[str, str]]): Strings which should be
+                sent along with the request as metadata.
+
+        Returns:
+            google.cloud.gkeconnect.gateway_v1beta1.types.GenerateCredentialsResponse:
+                Connection information for a
+                particular membership.
+
+        """
+        # Create or coerce a protobuf request object.
+        # - Use the request object if provided (there's no risk of modifying the input as
+        #   there are no flattened fields), or create one.
+        if not isinstance(request, control.GenerateCredentialsRequest):
+            request = control.GenerateCredentialsRequest(request)
+
+        # Wrap the RPC method; this adds retry and timeout information,
+        # and friendly error handling.
+        rpc = self._transport._wrapped_methods[self._transport.generate_credentials]
+
+        # Certain fields should be provided within the metadata header;
+        # add these here.
+        metadata = tuple(metadata) + (
+            gapic_v1.routing_header.to_grpc_metadata((("name", request.name),)),
+        )
+
+        # Validate the universe domain.
+        self._validate_universe_domain()
+
+        # Send the request.
+        response = rpc(
+            request,
+            retry=retry,
+            timeout=timeout,
+            metadata=metadata,
+        )
+
+        # Done; return the response.
+        return response
+
+    def __enter__(self) -> "GatewayControlClient":
+        return self
+
+    def __exit__(self, type, value, traceback):
+        """Releases underlying transport's resources.
+
+        .. warning::
+            ONLY use as a context manager if the transport is NOT shared
+            with other clients! Exiting the with block will CLOSE the transport
+            and may cause errors in other clients!
+        """
+        self.transport.close()
+
+
+DEFAULT_CLIENT_INFO = gapic_v1.client_info.ClientInfo(
+    gapic_version=package_version.__version__
+)
+
+
+__all__ = ("GatewayControlClient",)
diff --git a/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/services/gateway_service/transports/__init__.py b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/services/gateway_control/transports/__init__.py
similarity index 66%
rename from packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/services/gateway_service/transports/__init__.py
rename to packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/services/gateway_control/transports/__init__.py
index d04e25a4ef88..3692124a1a40 100644
--- a/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/services/gateway_service/transports/__init__.py
+++ b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/services/gateway_control/transports/__init__.py
@@ -16,17 +16,17 @@
 from collections import OrderedDict
 from typing import Dict, Type
 
-from .base import GatewayServiceTransport
-from .grpc import GatewayServiceGrpcTransport
-from .grpc_asyncio import GatewayServiceGrpcAsyncIOTransport
+from .base import GatewayControlTransport
+from .grpc import GatewayControlGrpcTransport
+from .grpc_asyncio import GatewayControlGrpcAsyncIOTransport
 
 # Compile a registry of transports.
-_transport_registry = OrderedDict()  # type: Dict[str, Type[GatewayServiceTransport]]
-_transport_registry["grpc"] = GatewayServiceGrpcTransport
-_transport_registry["grpc_asyncio"] = GatewayServiceGrpcAsyncIOTransport
+_transport_registry = OrderedDict()  # type: Dict[str, Type[GatewayControlTransport]]
+_transport_registry["grpc"] = GatewayControlGrpcTransport
+_transport_registry["grpc_asyncio"] = GatewayControlGrpcAsyncIOTransport
 
 __all__ = (
-    "GatewayServiceTransport",
-    "GatewayServiceGrpcTransport",
-    "GatewayServiceGrpcAsyncIOTransport",
+    "GatewayControlTransport",
+    "GatewayControlGrpcTransport",
+    "GatewayControlGrpcAsyncIOTransport",
 )
diff --git a/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/services/gateway_control/transports/base.py b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/services/gateway_control/transports/base.py
new file mode 100644
index 000000000000..5640d2d30b08
--- /dev/null
+++ b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/services/gateway_control/transports/base.py
@@ -0,0 +1,173 @@
+# -*- coding: utf-8 -*-
+# Copyright 2024 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+import abc
+from typing import Awaitable, Callable, Dict, Optional, Sequence, Union
+
+import google.api_core
+from google.api_core import exceptions as core_exceptions
+from google.api_core import gapic_v1
+from google.api_core import retry as retries
+import google.auth  # type: ignore
+from google.auth import credentials as ga_credentials  # type: ignore
+from google.oauth2 import service_account  # type: ignore
+
+from google.cloud.gkeconnect.gateway_v1beta1 import gapic_version as package_version
+from google.cloud.gkeconnect.gateway_v1beta1.types import control
+
+DEFAULT_CLIENT_INFO = gapic_v1.client_info.ClientInfo(
+    gapic_version=package_version.__version__
+)
+
+
+class GatewayControlTransport(abc.ABC):
+    """Abstract transport class for GatewayControl."""
+
+    AUTH_SCOPES = ("https://www.googleapis.com/auth/cloud-platform",)
+
+    DEFAULT_HOST: str = "connectgateway.googleapis.com"
+
+    def __init__(
+        self,
+        *,
+        host: str = DEFAULT_HOST,
+        credentials: Optional[ga_credentials.Credentials] = None,
+        credentials_file: Optional[str] = None,
+        scopes: Optional[Sequence[str]] = None,
+        quota_project_id: Optional[str] = None,
+        client_info: gapic_v1.client_info.ClientInfo = DEFAULT_CLIENT_INFO,
+        always_use_jwt_access: Optional[bool] = False,
+        api_audience: Optional[str] = None,
+        **kwargs,
+    ) -> None:
+        """Instantiate the transport.
+
+        Args:
+            host (Optional[str]):
+                 The hostname to connect to (default: 'connectgateway.googleapis.com').
+            credentials (Optional[google.auth.credentials.Credentials]): The
+                authorization credentials to attach to requests. These
+                credentials identify the application to the service; if none
+                are specified, the client will attempt to ascertain the
+                credentials from the environment.
+            credentials_file (Optional[str]): A file with credentials that can
+                be loaded with :func:`google.auth.load_credentials_from_file`.
+                This argument is mutually exclusive with credentials.
+            scopes (Optional[Sequence[str]]): A list of scopes.
+            quota_project_id (Optional[str]): An optional project to use for billing
+                and quota.
+            client_info (google.api_core.gapic_v1.client_info.ClientInfo):
+                The client info used to send a user-agent string along with
+                API requests. If ``None``, then default info will be used.
+                Generally, you only need to set this if you're developing
+                your own client library.
+            always_use_jwt_access (Optional[bool]): Whether self signed JWT should
+                be used for service account credentials.
+        """
+
+        scopes_kwargs = {"scopes": scopes, "default_scopes": self.AUTH_SCOPES}
+
+        # Save the scopes.
+        self._scopes = scopes
+        if not hasattr(self, "_ignore_credentials"):
+            self._ignore_credentials: bool = False
+
+        # If no credentials are provided, then determine the appropriate
+        # defaults.
+        if credentials and credentials_file:
+            raise core_exceptions.DuplicateCredentialArgs(
+                "'credentials_file' and 'credentials' are mutually exclusive"
+            )
+
+        if credentials_file is not None:
+            credentials, _ = google.auth.load_credentials_from_file(
+                credentials_file, **scopes_kwargs, quota_project_id=quota_project_id
+            )
+        elif credentials is None and not self._ignore_credentials:
+            credentials, _ = google.auth.default(
+                **scopes_kwargs, quota_project_id=quota_project_id
+            )
+            # Don't apply audience if the credentials file passed from user.
+            if hasattr(credentials, "with_gdch_audience"):
+                credentials = credentials.with_gdch_audience(
+                    api_audience if api_audience else host
+                )
+
+        # If the credentials are service account credentials, then always try to use self signed JWT.
+        if (
+            always_use_jwt_access
+            and isinstance(credentials, service_account.Credentials)
+            and hasattr(service_account.Credentials, "with_always_use_jwt_access")
+        ):
+            credentials = credentials.with_always_use_jwt_access(True)
+
+        # Save the credentials.
+        self._credentials = credentials
+
+        # Save the hostname. Default to port 443 (HTTPS) if none is specified.
+        if ":" not in host:
+            host += ":443"
+        self._host = host
+
+    @property
+    def host(self):
+        return self._host
+
+    def _prep_wrapped_messages(self, client_info):
+        # Precompute the wrapped methods.
+        self._wrapped_methods = {
+            self.generate_credentials: gapic_v1.method.wrap_method(
+                self.generate_credentials,
+                default_retry=retries.Retry(
+                    initial=1.0,
+                    maximum=10.0,
+                    multiplier=1.3,
+                    predicate=retries.if_exception_type(
+                        core_exceptions.ServiceUnavailable,
+                    ),
+                    deadline=60.0,
+                ),
+                default_timeout=60.0,
+                client_info=client_info,
+            ),
+        }
+
+    def close(self):
+        """Closes resources associated with the transport.
+
+        .. warning::
+             Only call this method if the transport is NOT shared
+             with other clients - this may cause errors in other clients!
+        """
+        raise NotImplementedError()
+
+    @property
+    def generate_credentials(
+        self,
+    ) -> Callable[
+        [control.GenerateCredentialsRequest],
+        Union[
+            control.GenerateCredentialsResponse,
+            Awaitable[control.GenerateCredentialsResponse],
+        ],
+    ]:
+        raise NotImplementedError()
+
+    @property
+    def kind(self) -> str:
+        raise NotImplementedError()
+
+
+__all__ = ("GatewayControlTransport",)
diff --git a/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/services/gateway_control/transports/grpc.py b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/services/gateway_control/transports/grpc.py
new file mode 100644
index 000000000000..c61f1c5d018d
--- /dev/null
+++ b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/services/gateway_control/transports/grpc.py
@@ -0,0 +1,275 @@
+# -*- coding: utf-8 -*-
+# Copyright 2024 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+from typing import Callable, Dict, Optional, Sequence, Tuple, Union
+import warnings
+
+from google.api_core import gapic_v1, grpc_helpers
+import google.auth  # type: ignore
+from google.auth import credentials as ga_credentials  # type: ignore
+from google.auth.transport.grpc import SslCredentials  # type: ignore
+import grpc  # type: ignore
+
+from google.cloud.gkeconnect.gateway_v1beta1.types import control
+
+from .base import DEFAULT_CLIENT_INFO, GatewayControlTransport
+
+
+class GatewayControlGrpcTransport(GatewayControlTransport):
+    """gRPC backend transport for GatewayControl.
+
+    GatewayControl is the control plane API for Connect Gateway.
+
+    This class defines the same methods as the primary client, so the
+    primary client can load the underlying transport implementation
+    and call it.
+
+    It sends protocol buffers over the wire using gRPC (which is built on
+    top of HTTP/2); the ``grpcio`` package must be installed.
+    """
+
+    _stubs: Dict[str, Callable]
+
+    def __init__(
+        self,
+        *,
+        host: str = "connectgateway.googleapis.com",
+        credentials: Optional[ga_credentials.Credentials] = None,
+        credentials_file: Optional[str] = None,
+        scopes: Optional[Sequence[str]] = None,
+        channel: Optional[Union[grpc.Channel, Callable[..., grpc.Channel]]] = None,
+        api_mtls_endpoint: Optional[str] = None,
+        client_cert_source: Optional[Callable[[], Tuple[bytes, bytes]]] = None,
+        ssl_channel_credentials: Optional[grpc.ChannelCredentials] = None,
+        client_cert_source_for_mtls: Optional[Callable[[], Tuple[bytes, bytes]]] = None,
+        quota_project_id: Optional[str] = None,
+        client_info: gapic_v1.client_info.ClientInfo = DEFAULT_CLIENT_INFO,
+        always_use_jwt_access: Optional[bool] = False,
+        api_audience: Optional[str] = None,
+    ) -> None:
+        """Instantiate the transport.
+
+        Args:
+            host (Optional[str]):
+                 The hostname to connect to (default: 'connectgateway.googleapis.com').
+            credentials (Optional[google.auth.credentials.Credentials]): The
+                authorization credentials to attach to requests. These
+                credentials identify the application to the service; if none
+                are specified, the client will attempt to ascertain the
+                credentials from the environment.
+                This argument is ignored if a ``channel`` instance is provided.
+            credentials_file (Optional[str]): A file with credentials that can
+                be loaded with :func:`google.auth.load_credentials_from_file`.
+                This argument is ignored if a ``channel`` instance is provided.
+            scopes (Optional(Sequence[str])): A list of scopes. This argument is
+                ignored if a ``channel`` instance is provided.
+            channel (Optional[Union[grpc.Channel, Callable[..., grpc.Channel]]]):
+                A ``Channel`` instance through which to make calls, or a Callable
+                that constructs and returns one. If set to None, ``self.create_channel``
+                is used to create the channel. If a Callable is given, it will be called
+                with the same arguments as used in ``self.create_channel``.
+            api_mtls_endpoint (Optional[str]): Deprecated. The mutual TLS endpoint.
+                If provided, it overrides the ``host`` argument and tries to create
+                a mutual TLS channel with client SSL credentials from
+                ``client_cert_source`` or application default SSL credentials.
+            client_cert_source (Optional[Callable[[], Tuple[bytes, bytes]]]):
+                Deprecated. A callback to provide client SSL certificate bytes and
+                private key bytes, both in PEM format. It is ignored if
+                ``api_mtls_endpoint`` is None.
+            ssl_channel_credentials (grpc.ChannelCredentials): SSL credentials
+                for the grpc channel. It is ignored if a ``channel`` instance is provided.
+            client_cert_source_for_mtls (Optional[Callable[[], Tuple[bytes, bytes]]]):
+                A callback to provide client certificate bytes and private key bytes,
+                both in PEM format. It is used to configure a mutual TLS channel. It is
+                ignored if a ``channel`` instance or ``ssl_channel_credentials`` is provided.
+            quota_project_id (Optional[str]): An optional project to use for billing
+                and quota.
+            client_info (google.api_core.gapic_v1.client_info.ClientInfo):
+                The client info used to send a user-agent string along with
+                API requests. If ``None``, then default info will be used.
+                Generally, you only need to set this if you're developing
+                your own client library.
+            always_use_jwt_access (Optional[bool]): Whether self signed JWT should
+                be used for service account credentials.
+
+        Raises:
+          google.auth.exceptions.MutualTLSChannelError: If mutual TLS transport
+              creation failed for any reason.
+          google.api_core.exceptions.DuplicateCredentialArgs: If both ``credentials``
+              and ``credentials_file`` are passed.
+        """
+        self._grpc_channel = None
+        self._ssl_channel_credentials = ssl_channel_credentials
+        self._stubs: Dict[str, Callable] = {}
+
+        if api_mtls_endpoint:
+            warnings.warn("api_mtls_endpoint is deprecated", DeprecationWarning)
+        if client_cert_source:
+            warnings.warn("client_cert_source is deprecated", DeprecationWarning)
+
+        if isinstance(channel, grpc.Channel):
+            # Ignore credentials if a channel was passed.
+            credentials = None
+            self._ignore_credentials = True
+            # If a channel was explicitly provided, set it.
+            self._grpc_channel = channel
+            self._ssl_channel_credentials = None
+
+        else:
+            if api_mtls_endpoint:
+                host = api_mtls_endpoint
+
+                # Create SSL credentials with client_cert_source or application
+                # default SSL credentials.
+                if client_cert_source:
+                    cert, key = client_cert_source()
+                    self._ssl_channel_credentials = grpc.ssl_channel_credentials(
+                        certificate_chain=cert, private_key=key
+                    )
+                else:
+                    self._ssl_channel_credentials = SslCredentials().ssl_credentials
+
+            else:
+                if client_cert_source_for_mtls and not ssl_channel_credentials:
+                    cert, key = client_cert_source_for_mtls()
+                    self._ssl_channel_credentials = grpc.ssl_channel_credentials(
+                        certificate_chain=cert, private_key=key
+                    )
+
+        # The base transport sets the host, credentials and scopes
+        super().__init__(
+            host=host,
+            credentials=credentials,
+            credentials_file=credentials_file,
+            scopes=scopes,
+            quota_project_id=quota_project_id,
+            client_info=client_info,
+            always_use_jwt_access=always_use_jwt_access,
+            api_audience=api_audience,
+        )
+
+        if not self._grpc_channel:
+            # initialize with the provided callable or the default channel
+            channel_init = channel or type(self).create_channel
+            self._grpc_channel = channel_init(
+                self._host,
+                # use the credentials which are saved
+                credentials=self._credentials,
+                # Set ``credentials_file`` to ``None`` here as
+                # the credentials that we saved earlier should be used.
+                credentials_file=None,
+                scopes=self._scopes,
+                ssl_credentials=self._ssl_channel_credentials,
+                quota_project_id=quota_project_id,
+                options=[
+                    ("grpc.max_send_message_length", -1),
+                    ("grpc.max_receive_message_length", -1),
+                ],
+            )
+
+        # Wrap messages. This must be done after self._grpc_channel exists
+        self._prep_wrapped_messages(client_info)
+
+    @classmethod
+    def create_channel(
+        cls,
+        host: str = "connectgateway.googleapis.com",
+        credentials: Optional[ga_credentials.Credentials] = None,
+        credentials_file: Optional[str] = None,
+        scopes: Optional[Sequence[str]] = None,
+        quota_project_id: Optional[str] = None,
+        **kwargs,
+    ) -> grpc.Channel:
+        """Create and return a gRPC channel object.
+        Args:
+            host (Optional[str]): The host for the channel to use.
+            credentials (Optional[~.Credentials]): The
+                authorization credentials to attach to requests. These
+                credentials identify this application to the service. If
+                none are specified, the client will attempt to ascertain
+                the credentials from the environment.
+            credentials_file (Optional[str]): A file with credentials that can
+                be loaded with :func:`google.auth.load_credentials_from_file`.
+                This argument is mutually exclusive with credentials.
+            scopes (Optional[Sequence[str]]): A optional list of scopes needed for this
+                service. These are only used when credentials are not specified and
+                are passed to :func:`google.auth.default`.
+            quota_project_id (Optional[str]): An optional project to use for billing
+                and quota.
+            kwargs (Optional[dict]): Keyword arguments, which are passed to the
+                channel creation.
+        Returns:
+            grpc.Channel: A gRPC channel object.
+
+        Raises:
+            google.api_core.exceptions.DuplicateCredentialArgs: If both ``credentials``
+              and ``credentials_file`` are passed.
+        """
+
+        return grpc_helpers.create_channel(
+            host,
+            credentials=credentials,
+            credentials_file=credentials_file,
+            quota_project_id=quota_project_id,
+            default_scopes=cls.AUTH_SCOPES,
+            scopes=scopes,
+            default_host=cls.DEFAULT_HOST,
+            **kwargs,
+        )
+
+    @property
+    def grpc_channel(self) -> grpc.Channel:
+        """Return the channel designed to connect to this service."""
+        return self._grpc_channel
+
+    @property
+    def generate_credentials(
+        self,
+    ) -> Callable[
+        [control.GenerateCredentialsRequest], control.GenerateCredentialsResponse
+    ]:
+        r"""Return a callable for the generate credentials method over gRPC.
+
+        GenerateCredentials provides connection information
+        that allows a user to access the specified membership
+        using Connect Gateway.
+
+        Returns:
+            Callable[[~.GenerateCredentialsRequest],
+                    ~.GenerateCredentialsResponse]:
+                A function that, when called, will call the underlying RPC
+                on the server.
+        """
+        # Generate a "stub function" on-the-fly which will actually make
+        # the request.
+        # gRPC handles serialization and deserialization, so we just need
+        # to pass in the functions for each.
+        if "generate_credentials" not in self._stubs:
+            self._stubs["generate_credentials"] = self.grpc_channel.unary_unary(
+                "/google.cloud.gkeconnect.gateway.v1beta1.GatewayControl/GenerateCredentials",
+                request_serializer=control.GenerateCredentialsRequest.serialize,
+                response_deserializer=control.GenerateCredentialsResponse.deserialize,
+            )
+        return self._stubs["generate_credentials"]
+
+    def close(self):
+        self.grpc_channel.close()
+
+    @property
+    def kind(self) -> str:
+        return "grpc"
+
+
+__all__ = ("GatewayControlGrpcTransport",)
diff --git a/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/services/gateway_control/transports/grpc_asyncio.py b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/services/gateway_control/transports/grpc_asyncio.py
new file mode 100644
index 000000000000..f51400e32386
--- /dev/null
+++ b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/services/gateway_control/transports/grpc_asyncio.py
@@ -0,0 +1,295 @@
+# -*- coding: utf-8 -*-
+# Copyright 2024 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+from typing import Awaitable, Callable, Dict, Optional, Sequence, Tuple, Union
+import warnings
+
+from google.api_core import exceptions as core_exceptions
+from google.api_core import gapic_v1, grpc_helpers_async
+from google.api_core import retry_async as retries
+from google.auth import credentials as ga_credentials  # type: ignore
+from google.auth.transport.grpc import SslCredentials  # type: ignore
+import grpc  # type: ignore
+from grpc.experimental import aio  # type: ignore
+
+from google.cloud.gkeconnect.gateway_v1beta1.types import control
+
+from .base import DEFAULT_CLIENT_INFO, GatewayControlTransport
+from .grpc import GatewayControlGrpcTransport
+
+
+class GatewayControlGrpcAsyncIOTransport(GatewayControlTransport):
+    """gRPC AsyncIO backend transport for GatewayControl.
+
+    GatewayControl is the control plane API for Connect Gateway.
+
+    This class defines the same methods as the primary client, so the
+    primary client can load the underlying transport implementation
+    and call it.
+
+    It sends protocol buffers over the wire using gRPC (which is built on
+    top of HTTP/2); the ``grpcio`` package must be installed.
+    """
+
+    _grpc_channel: aio.Channel
+    _stubs: Dict[str, Callable] = {}
+
+    @classmethod
+    def create_channel(
+        cls,
+        host: str = "connectgateway.googleapis.com",
+        credentials: Optional[ga_credentials.Credentials] = None,
+        credentials_file: Optional[str] = None,
+        scopes: Optional[Sequence[str]] = None,
+        quota_project_id: Optional[str] = None,
+        **kwargs,
+    ) -> aio.Channel:
+        """Create and return a gRPC AsyncIO channel object.
+        Args:
+            host (Optional[str]): The host for the channel to use.
+            credentials (Optional[~.Credentials]): The
+                authorization credentials to attach to requests. These
+                credentials identify this application to the service. If
+                none are specified, the client will attempt to ascertain
+                the credentials from the environment.
+            credentials_file (Optional[str]): A file with credentials that can
+                be loaded with :func:`google.auth.load_credentials_from_file`.
+            scopes (Optional[Sequence[str]]): A optional list of scopes needed for this
+                service. These are only used when credentials are not specified and
+                are passed to :func:`google.auth.default`.
+            quota_project_id (Optional[str]): An optional project to use for billing
+                and quota.
+            kwargs (Optional[dict]): Keyword arguments, which are passed to the
+                channel creation.
+        Returns:
+            aio.Channel: A gRPC AsyncIO channel object.
+        """
+
+        return grpc_helpers_async.create_channel(
+            host,
+            credentials=credentials,
+            credentials_file=credentials_file,
+            quota_project_id=quota_project_id,
+            default_scopes=cls.AUTH_SCOPES,
+            scopes=scopes,
+            default_host=cls.DEFAULT_HOST,
+            **kwargs,
+        )
+
+    def __init__(
+        self,
+        *,
+        host: str = "connectgateway.googleapis.com",
+        credentials: Optional[ga_credentials.Credentials] = None,
+        credentials_file: Optional[str] = None,
+        scopes: Optional[Sequence[str]] = None,
+        channel: Optional[Union[aio.Channel, Callable[..., aio.Channel]]] = None,
+        api_mtls_endpoint: Optional[str] = None,
+        client_cert_source: Optional[Callable[[], Tuple[bytes, bytes]]] = None,
+        ssl_channel_credentials: Optional[grpc.ChannelCredentials] = None,
+        client_cert_source_for_mtls: Optional[Callable[[], Tuple[bytes, bytes]]] = None,
+        quota_project_id: Optional[str] = None,
+        client_info: gapic_v1.client_info.ClientInfo = DEFAULT_CLIENT_INFO,
+        always_use_jwt_access: Optional[bool] = False,
+        api_audience: Optional[str] = None,
+    ) -> None:
+        """Instantiate the transport.
+
+        Args:
+            host (Optional[str]):
+                 The hostname to connect to (default: 'connectgateway.googleapis.com').
+            credentials (Optional[google.auth.credentials.Credentials]): The
+                authorization credentials to attach to requests. These
+                credentials identify the application to the service; if none
+                are specified, the client will attempt to ascertain the
+                credentials from the environment.
+                This argument is ignored if a ``channel`` instance is provided.
+            credentials_file (Optional[str]): A file with credentials that can
+                be loaded with :func:`google.auth.load_credentials_from_file`.
+                This argument is ignored if a ``channel`` instance is provided.
+            scopes (Optional[Sequence[str]]): A optional list of scopes needed for this
+                service. These are only used when credentials are not specified and
+                are passed to :func:`google.auth.default`.
+            channel (Optional[Union[aio.Channel, Callable[..., aio.Channel]]]):
+                A ``Channel`` instance through which to make calls, or a Callable
+                that constructs and returns one. If set to None, ``self.create_channel``
+                is used to create the channel. If a Callable is given, it will be called
+                with the same arguments as used in ``self.create_channel``.
+            api_mtls_endpoint (Optional[str]): Deprecated. The mutual TLS endpoint.
+                If provided, it overrides the ``host`` argument and tries to create
+                a mutual TLS channel with client SSL credentials from
+                ``client_cert_source`` or application default SSL credentials.
+            client_cert_source (Optional[Callable[[], Tuple[bytes, bytes]]]):
+                Deprecated. A callback to provide client SSL certificate bytes and
+                private key bytes, both in PEM format. It is ignored if
+                ``api_mtls_endpoint`` is None.
+            ssl_channel_credentials (grpc.ChannelCredentials): SSL credentials
+                for the grpc channel. It is ignored if a ``channel`` instance is provided.
+            client_cert_source_for_mtls (Optional[Callable[[], Tuple[bytes, bytes]]]):
+                A callback to provide client certificate bytes and private key bytes,
+                both in PEM format. It is used to configure a mutual TLS channel. It is
+                ignored if a ``channel`` instance or ``ssl_channel_credentials`` is provided.
+            quota_project_id (Optional[str]): An optional project to use for billing
+                and quota.
+            client_info (google.api_core.gapic_v1.client_info.ClientInfo):
+                The client info used to send a user-agent string along with
+                API requests. If ``None``, then default info will be used.
+                Generally, you only need to set this if you're developing
+                your own client library.
+            always_use_jwt_access (Optional[bool]): Whether self signed JWT should
+                be used for service account credentials.
+
+        Raises:
+            google.auth.exceptions.MutualTlsChannelError: If mutual TLS transport
+              creation failed for any reason.
+          google.api_core.exceptions.DuplicateCredentialArgs: If both ``credentials``
+              and ``credentials_file`` are passed.
+        """
+        self._grpc_channel = None
+        self._ssl_channel_credentials = ssl_channel_credentials
+        self._stubs: Dict[str, Callable] = {}
+
+        if api_mtls_endpoint:
+            warnings.warn("api_mtls_endpoint is deprecated", DeprecationWarning)
+        if client_cert_source:
+            warnings.warn("client_cert_source is deprecated", DeprecationWarning)
+
+        if isinstance(channel, aio.Channel):
+            # Ignore credentials if a channel was passed.
+            credentials = None
+            self._ignore_credentials = True
+            # If a channel was explicitly provided, set it.
+            self._grpc_channel = channel
+            self._ssl_channel_credentials = None
+        else:
+            if api_mtls_endpoint:
+                host = api_mtls_endpoint
+
+                # Create SSL credentials with client_cert_source or application
+                # default SSL credentials.
+                if client_cert_source:
+                    cert, key = client_cert_source()
+                    self._ssl_channel_credentials = grpc.ssl_channel_credentials(
+                        certificate_chain=cert, private_key=key
+                    )
+                else:
+                    self._ssl_channel_credentials = SslCredentials().ssl_credentials
+
+            else:
+                if client_cert_source_for_mtls and not ssl_channel_credentials:
+                    cert, key = client_cert_source_for_mtls()
+                    self._ssl_channel_credentials = grpc.ssl_channel_credentials(
+                        certificate_chain=cert, private_key=key
+                    )
+
+        # The base transport sets the host, credentials and scopes
+        super().__init__(
+            host=host,
+            credentials=credentials,
+            credentials_file=credentials_file,
+            scopes=scopes,
+            quota_project_id=quota_project_id,
+            client_info=client_info,
+            always_use_jwt_access=always_use_jwt_access,
+            api_audience=api_audience,
+        )
+
+        if not self._grpc_channel:
+            # initialize with the provided callable or the default channel
+            channel_init = channel or type(self).create_channel
+            self._grpc_channel = channel_init(
+                self._host,
+                # use the credentials which are saved
+                credentials=self._credentials,
+                # Set ``credentials_file`` to ``None`` here as
+                # the credentials that we saved earlier should be used.
+                credentials_file=None,
+                scopes=self._scopes,
+                ssl_credentials=self._ssl_channel_credentials,
+                quota_project_id=quota_project_id,
+                options=[
+                    ("grpc.max_send_message_length", -1),
+                    ("grpc.max_receive_message_length", -1),
+                ],
+            )
+
+        # Wrap messages. This must be done after self._grpc_channel exists
+        self._prep_wrapped_messages(client_info)
+
+    @property
+    def grpc_channel(self) -> aio.Channel:
+        """Create the channel designed to connect to this service.
+
+        This property caches on the instance; repeated calls return
+        the same channel.
+        """
+        # Return the channel from cache.
+        return self._grpc_channel
+
+    @property
+    def generate_credentials(
+        self,
+    ) -> Callable[
+        [control.GenerateCredentialsRequest],
+        Awaitable[control.GenerateCredentialsResponse],
+    ]:
+        r"""Return a callable for the generate credentials method over gRPC.
+
+        GenerateCredentials provides connection information
+        that allows a user to access the specified membership
+        using Connect Gateway.
+
+        Returns:
+            Callable[[~.GenerateCredentialsRequest],
+                    Awaitable[~.GenerateCredentialsResponse]]:
+                A function that, when called, will call the underlying RPC
+                on the server.
+        """
+        # Generate a "stub function" on-the-fly which will actually make
+        # the request.
+        # gRPC handles serialization and deserialization, so we just need
+        # to pass in the functions for each.
+        if "generate_credentials" not in self._stubs:
+            self._stubs["generate_credentials"] = self.grpc_channel.unary_unary(
+                "/google.cloud.gkeconnect.gateway.v1beta1.GatewayControl/GenerateCredentials",
+                request_serializer=control.GenerateCredentialsRequest.serialize,
+                response_deserializer=control.GenerateCredentialsResponse.deserialize,
+            )
+        return self._stubs["generate_credentials"]
+
+    def _prep_wrapped_messages(self, client_info):
+        """Precompute the wrapped methods, overriding the base class method to use async wrappers."""
+        self._wrapped_methods = {
+            self.generate_credentials: gapic_v1.method_async.wrap_method(
+                self.generate_credentials,
+                default_retry=retries.AsyncRetry(
+                    initial=1.0,
+                    maximum=10.0,
+                    multiplier=1.3,
+                    predicate=retries.if_exception_type(
+                        core_exceptions.ServiceUnavailable,
+                    ),
+                    deadline=60.0,
+                ),
+                default_timeout=60.0,
+                client_info=client_info,
+            ),
+        }
+
+    def close(self):
+        return self.grpc_channel.close()
+
+
+__all__ = ("GatewayControlGrpcAsyncIOTransport",)
diff --git a/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/services/gateway_service/async_client.py b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/services/gateway_service/async_client.py
deleted file mode 100644
index 067ac7ab5cc4..000000000000
--- a/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/services/gateway_service/async_client.py
+++ /dev/null
@@ -1,1133 +0,0 @@
-# -*- coding: utf-8 -*-
-# Copyright 2024 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-from collections import OrderedDict
-import re
-from typing import (
-    Callable,
-    Dict,
-    Mapping,
-    MutableMapping,
-    MutableSequence,
-    Optional,
-    Sequence,
-    Tuple,
-    Type,
-    Union,
-)
-
-from google.api_core import exceptions as core_exceptions
-from google.api_core import gapic_v1
-from google.api_core import retry_async as retries
-from google.api_core.client_options import ClientOptions
-from google.auth import credentials as ga_credentials  # type: ignore
-from google.oauth2 import service_account  # type: ignore
-
-from google.cloud.gkeconnect.gateway_v1beta1 import gapic_version as package_version
-
-try:
-    OptionalRetry = Union[retries.AsyncRetry, gapic_v1.method._MethodDefault, None]
-except AttributeError:  # pragma: NO COVER
-    OptionalRetry = Union[retries.AsyncRetry, object, None]  # type: ignore
-
-from google.api import httpbody_pb2  # type: ignore
-from google.protobuf import any_pb2  # type: ignore
-
-from .client import GatewayServiceClient
-from .transports.base import DEFAULT_CLIENT_INFO, GatewayServiceTransport
-from .transports.grpc_asyncio import GatewayServiceGrpcAsyncIOTransport
-
-
-class GatewayServiceAsyncClient:
-    """Gateway service is a public API which works as a Kubernetes
-    resource model proxy between end users and registered Kubernetes
-    clusters. Each RPC in this service matches with an HTTP verb.
-    End user will initiate kubectl commands against the Gateway
-    service, and Gateway service will forward user requests to
-    clusters.
-    """
-
-    _client: GatewayServiceClient
-
-    # Copy defaults from the synchronous client for use here.
-    # Note: DEFAULT_ENDPOINT is deprecated. Use _DEFAULT_ENDPOINT_TEMPLATE instead.
-    DEFAULT_ENDPOINT = GatewayServiceClient.DEFAULT_ENDPOINT
-    DEFAULT_MTLS_ENDPOINT = GatewayServiceClient.DEFAULT_MTLS_ENDPOINT
-    _DEFAULT_ENDPOINT_TEMPLATE = GatewayServiceClient._DEFAULT_ENDPOINT_TEMPLATE
-    _DEFAULT_UNIVERSE = GatewayServiceClient._DEFAULT_UNIVERSE
-
-    common_billing_account_path = staticmethod(
-        GatewayServiceClient.common_billing_account_path
-    )
-    parse_common_billing_account_path = staticmethod(
-        GatewayServiceClient.parse_common_billing_account_path
-    )
-    common_folder_path = staticmethod(GatewayServiceClient.common_folder_path)
-    parse_common_folder_path = staticmethod(
-        GatewayServiceClient.parse_common_folder_path
-    )
-    common_organization_path = staticmethod(
-        GatewayServiceClient.common_organization_path
-    )
-    parse_common_organization_path = staticmethod(
-        GatewayServiceClient.parse_common_organization_path
-    )
-    common_project_path = staticmethod(GatewayServiceClient.common_project_path)
-    parse_common_project_path = staticmethod(
-        GatewayServiceClient.parse_common_project_path
-    )
-    common_location_path = staticmethod(GatewayServiceClient.common_location_path)
-    parse_common_location_path = staticmethod(
-        GatewayServiceClient.parse_common_location_path
-    )
-
-    @classmethod
-    def from_service_account_info(cls, info: dict, *args, **kwargs):
-        """Creates an instance of this client using the provided credentials
-            info.
-
-        Args:
-            info (dict): The service account private key info.
-            args: Additional arguments to pass to the constructor.
-            kwargs: Additional arguments to pass to the constructor.
-
-        Returns:
-            GatewayServiceAsyncClient: The constructed client.
-        """
-        return GatewayServiceClient.from_service_account_info.__func__(GatewayServiceAsyncClient, info, *args, **kwargs)  # type: ignore
-
-    @classmethod
-    def from_service_account_file(cls, filename: str, *args, **kwargs):
-        """Creates an instance of this client using the provided credentials
-            file.
-
-        Args:
-            filename (str): The path to the service account private key json
-                file.
-            args: Additional arguments to pass to the constructor.
-            kwargs: Additional arguments to pass to the constructor.
-
-        Returns:
-            GatewayServiceAsyncClient: The constructed client.
-        """
-        return GatewayServiceClient.from_service_account_file.__func__(GatewayServiceAsyncClient, filename, *args, **kwargs)  # type: ignore
-
-    from_service_account_json = from_service_account_file
-
-    @classmethod
-    def get_mtls_endpoint_and_cert_source(
-        cls, client_options: Optional[ClientOptions] = None
-    ):
-        """Return the API endpoint and client cert source for mutual TLS.
-
-        The client cert source is determined in the following order:
-        (1) if `GOOGLE_API_USE_CLIENT_CERTIFICATE` environment variable is not "true", the
-        client cert source is None.
-        (2) if `client_options.client_cert_source` is provided, use the provided one; if the
-        default client cert source exists, use the default one; otherwise the client cert
-        source is None.
-
-        The API endpoint is determined in the following order:
-        (1) if `client_options.api_endpoint` if provided, use the provided one.
-        (2) if `GOOGLE_API_USE_CLIENT_CERTIFICATE` environment variable is "always", use the
-        default mTLS endpoint; if the environment variable is "never", use the default API
-        endpoint; otherwise if client cert source exists, use the default mTLS endpoint, otherwise
-        use the default API endpoint.
-
-        More details can be found at https://google.aip.dev/auth/4114.
-
-        Args:
-            client_options (google.api_core.client_options.ClientOptions): Custom options for the
-                client. Only the `api_endpoint` and `client_cert_source` properties may be used
-                in this method.
-
-        Returns:
-            Tuple[str, Callable[[], Tuple[bytes, bytes]]]: returns the API endpoint and the
-                client cert source to use.
-
-        Raises:
-            google.auth.exceptions.MutualTLSChannelError: If any errors happen.
-        """
-        return GatewayServiceClient.get_mtls_endpoint_and_cert_source(client_options)  # type: ignore
-
-    @property
-    def transport(self) -> GatewayServiceTransport:
-        """Returns the transport used by the client instance.
-
-        Returns:
-            GatewayServiceTransport: The transport used by the client instance.
-        """
-        return self._client.transport
-
-    @property
-    def api_endpoint(self):
-        """Return the API endpoint used by the client instance.
-
-        Returns:
-            str: The API endpoint used by the client instance.
-        """
-        return self._client._api_endpoint
-
-    @property
-    def universe_domain(self) -> str:
-        """Return the universe domain used by the client instance.
-
-        Returns:
-            str: The universe domain used
-                by the client instance.
-        """
-        return self._client._universe_domain
-
-    get_transport_class = GatewayServiceClient.get_transport_class
-
-    def __init__(
-        self,
-        *,
-        credentials: Optional[ga_credentials.Credentials] = None,
-        transport: Optional[
-            Union[str, GatewayServiceTransport, Callable[..., GatewayServiceTransport]]
-        ] = "grpc_asyncio",
-        client_options: Optional[ClientOptions] = None,
-        client_info: gapic_v1.client_info.ClientInfo = DEFAULT_CLIENT_INFO,
-    ) -> None:
-        """Instantiates the gateway service async client.
-
-        Args:
-            credentials (Optional[google.auth.credentials.Credentials]): The
-                authorization credentials to attach to requests. These
-                credentials identify the application to the service; if none
-                are specified, the client will attempt to ascertain the
-                credentials from the environment.
-            transport (Optional[Union[str,GatewayServiceTransport,Callable[..., GatewayServiceTransport]]]):
-                The transport to use, or a Callable that constructs and returns a new transport to use.
-                If a Callable is given, it will be called with the same set of initialization
-                arguments as used in the GatewayServiceTransport constructor.
-                If set to None, a transport is chosen automatically.
-            client_options (Optional[Union[google.api_core.client_options.ClientOptions, dict]]):
-                Custom options for the client.
-
-                1. The ``api_endpoint`` property can be used to override the
-                default endpoint provided by the client when ``transport`` is
-                not explicitly provided. Only if this property is not set and
-                ``transport`` was not explicitly provided, the endpoint is
-                determined by the GOOGLE_API_USE_MTLS_ENDPOINT environment
-                variable, which have one of the following values:
-                "always" (always use the default mTLS endpoint), "never" (always
-                use the default regular endpoint) and "auto" (auto-switch to the
-                default mTLS endpoint if client certificate is present; this is
-                the default value).
-
-                2. If the GOOGLE_API_USE_CLIENT_CERTIFICATE environment variable
-                is "true", then the ``client_cert_source`` property can be used
-                to provide a client certificate for mTLS transport. If
-                not provided, the default SSL client certificate will be used if
-                present. If GOOGLE_API_USE_CLIENT_CERTIFICATE is "false" or not
-                set, no client certificate will be used.
-
-                3. The ``universe_domain`` property can be used to override the
-                default "googleapis.com" universe. Note that ``api_endpoint``
-                property still takes precedence; and ``universe_domain`` is
-                currently not supported for mTLS.
-
-            client_info (google.api_core.gapic_v1.client_info.ClientInfo):
-                The client info used to send a user-agent string along with
-                API requests. If ``None``, then default info will be used.
-                Generally, you only need to set this if you're developing
-                your own client library.
-
-        Raises:
-            google.auth.exceptions.MutualTlsChannelError: If mutual TLS transport
-                creation failed for any reason.
-        """
-        self._client = GatewayServiceClient(
-            credentials=credentials,
-            transport=transport,
-            client_options=client_options,
-            client_info=client_info,
-        )
-
-    async def get_resource(
-        self,
-        request: Optional[Union[httpbody_pb2.HttpBody, dict]] = None,
-        *,
-        retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: Union[float, object] = gapic_v1.method.DEFAULT,
-        metadata: Sequence[Tuple[str, str]] = (),
-    ) -> httpbody_pb2.HttpBody:
-        r"""GetResource performs an HTTP GET request on the
-        Kubernetes API Server.
-
-        .. code-block:: python
-
-            # This snippet has been automatically generated and should be regarded as a
-            # code template only.
-            # It will require modifications to work:
-            # - It may require correct/in-range values for request initialization.
-            # - It may require specifying regional endpoints when creating the service
-            #   client as shown in:
-            #   https://googleapis.dev/python/google-api-core/latest/client_options.html
-            from google.api import httpbody_pb2  # type: ignore
-            from google.cloud.gkeconnect import gateway_v1beta1
-
-            async def sample_get_resource():
-                # Create a client
-                client = gateway_v1beta1.GatewayServiceAsyncClient()
-
-                # Initialize request argument(s)
-                request = httpbody_pb2.HttpBody(
-                )
-
-                # Make the request
-                response = await client.get_resource(request=request)
-
-                # Handle the response
-                print(response)
-
-        Args:
-            request (Optional[Union[google.api.httpbody_pb2.HttpBody, dict]]):
-                The request object. Message that represents an arbitrary HTTP body. It
-                should only be used for payload formats that can't be
-                represented as JSON, such as raw binary or an HTML page.
-
-                This message can be used both in streaming and
-                non-streaming API methods in the request as well as the
-                response.
-
-                It can be used as a top-level request field, which is
-                convenient if one wants to extract parameters from
-                either the URL or HTTP template into the request fields
-                and also want access to the raw HTTP body.
-
-                Example:
-
-                ::
-
-                    message GetResourceRequest {
-                      // A unique request id.
-                      string request_id = 1;
-
-                      // The raw HTTP body is bound to this field.
-                      google.api.HttpBody http_body = 2;
-
-                    }
-
-                    service ResourceService {
-                      rpc GetResource(GetResourceRequest)
-                        returns (google.api.HttpBody);
-                      rpc UpdateResource(google.api.HttpBody)
-                        returns (google.protobuf.Empty);
-
-                    }
-
-                Example with streaming methods:
-
-                ::
-
-                    service CaldavService {
-                      rpc GetCalendar(stream google.api.HttpBody)
-                        returns (stream google.api.HttpBody);
-                      rpc UpdateCalendar(stream google.api.HttpBody)
-                        returns (stream google.api.HttpBody);
-
-                    }
-
-                Use of this type only changes how the request and
-                response bodies are handled, all other features will
-                continue to work unchanged.
-            retry (google.api_core.retry_async.AsyncRetry): Designation of what errors, if any,
-                should be retried.
-            timeout (float): The timeout for this request.
-            metadata (Sequence[Tuple[str, str]]): Strings which should be
-                sent along with the request as metadata.
-
-        Returns:
-            google.api.httpbody_pb2.HttpBody:
-                Message that represents an arbitrary HTTP body. It should only be used for
-                   payload formats that can't be represented as JSON,
-                   such as raw binary or an HTML page.
-
-                   This message can be used both in streaming and
-                   non-streaming API methods in the request as well as
-                   the response.
-
-                   It can be used as a top-level request field, which is
-                   convenient if one wants to extract parameters from
-                   either the URL or HTTP template into the request
-                   fields and also want access to the raw HTTP body.
-
-                   Example:
-
-                      message GetResourceRequest {
-                         // A unique request id. string request_id = 1;
-
-                         // The raw HTTP body is bound to this field.
-                         google.api.HttpBody http_body = 2;
-
-                      }
-
-                      service ResourceService {
-                         rpc GetResource(GetResourceRequest)
-                            returns (google.api.HttpBody);
-
-                         rpc UpdateResource(google.api.HttpBody)
-                            returns (google.protobuf.Empty);
-
-                      }
-
-                   Example with streaming methods:
-
-                      service CaldavService {
-                         rpc GetCalendar(stream google.api.HttpBody)
-                            returns (stream google.api.HttpBody);
-
-                         rpc UpdateCalendar(stream google.api.HttpBody)
-                            returns (stream google.api.HttpBody);
-
-                      }
-
-                   Use of this type only changes how the request and
-                   response bodies are handled, all other features will
-                   continue to work unchanged.
-
-        """
-        # Create or coerce a protobuf request object.
-        # - The request isn't a proto-plus wrapped type,
-        #   so it must be constructed via keyword expansion.
-        if isinstance(request, dict):
-            request = httpbody_pb2.HttpBody(**request)
-        elif not request:
-            request = httpbody_pb2.HttpBody()
-
-        # Wrap the RPC method; this adds retry and timeout information,
-        # and friendly error handling.
-        rpc = self._client._transport._wrapped_methods[
-            self._client._transport.get_resource
-        ]
-
-        # Validate the universe domain.
-        self._client._validate_universe_domain()
-
-        # Send the request.
-        response = await rpc(
-            request,
-            retry=retry,
-            timeout=timeout,
-            metadata=metadata,
-        )
-
-        # Done; return the response.
-        return response
-
-    async def post_resource(
-        self,
-        request: Optional[Union[httpbody_pb2.HttpBody, dict]] = None,
-        *,
-        retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: Union[float, object] = gapic_v1.method.DEFAULT,
-        metadata: Sequence[Tuple[str, str]] = (),
-    ) -> httpbody_pb2.HttpBody:
-        r"""PostResource performs an HTTP POST on the Kubernetes
-        API Server.
-
-        .. code-block:: python
-
-            # This snippet has been automatically generated and should be regarded as a
-            # code template only.
-            # It will require modifications to work:
-            # - It may require correct/in-range values for request initialization.
-            # - It may require specifying regional endpoints when creating the service
-            #   client as shown in:
-            #   https://googleapis.dev/python/google-api-core/latest/client_options.html
-            from google.api import httpbody_pb2  # type: ignore
-            from google.cloud.gkeconnect import gateway_v1beta1
-
-            async def sample_post_resource():
-                # Create a client
-                client = gateway_v1beta1.GatewayServiceAsyncClient()
-
-                # Initialize request argument(s)
-                request = httpbody_pb2.HttpBody(
-                )
-
-                # Make the request
-                response = await client.post_resource(request=request)
-
-                # Handle the response
-                print(response)
-
-        Args:
-            request (Optional[Union[google.api.httpbody_pb2.HttpBody, dict]]):
-                The request object. Message that represents an arbitrary HTTP body. It
-                should only be used for payload formats that can't be
-                represented as JSON, such as raw binary or an HTML page.
-
-                This message can be used both in streaming and
-                non-streaming API methods in the request as well as the
-                response.
-
-                It can be used as a top-level request field, which is
-                convenient if one wants to extract parameters from
-                either the URL or HTTP template into the request fields
-                and also want access to the raw HTTP body.
-
-                Example:
-
-                ::
-
-                    message GetResourceRequest {
-                      // A unique request id.
-                      string request_id = 1;
-
-                      // The raw HTTP body is bound to this field.
-                      google.api.HttpBody http_body = 2;
-
-                    }
-
-                    service ResourceService {
-                      rpc GetResource(GetResourceRequest)
-                        returns (google.api.HttpBody);
-                      rpc UpdateResource(google.api.HttpBody)
-                        returns (google.protobuf.Empty);
-
-                    }
-
-                Example with streaming methods:
-
-                ::
-
-                    service CaldavService {
-                      rpc GetCalendar(stream google.api.HttpBody)
-                        returns (stream google.api.HttpBody);
-                      rpc UpdateCalendar(stream google.api.HttpBody)
-                        returns (stream google.api.HttpBody);
-
-                    }
-
-                Use of this type only changes how the request and
-                response bodies are handled, all other features will
-                continue to work unchanged.
-            retry (google.api_core.retry_async.AsyncRetry): Designation of what errors, if any,
-                should be retried.
-            timeout (float): The timeout for this request.
-            metadata (Sequence[Tuple[str, str]]): Strings which should be
-                sent along with the request as metadata.
-
-        Returns:
-            google.api.httpbody_pb2.HttpBody:
-                Message that represents an arbitrary HTTP body. It should only be used for
-                   payload formats that can't be represented as JSON,
-                   such as raw binary or an HTML page.
-
-                   This message can be used both in streaming and
-                   non-streaming API methods in the request as well as
-                   the response.
-
-                   It can be used as a top-level request field, which is
-                   convenient if one wants to extract parameters from
-                   either the URL or HTTP template into the request
-                   fields and also want access to the raw HTTP body.
-
-                   Example:
-
-                      message GetResourceRequest {
-                         // A unique request id. string request_id = 1;
-
-                         // The raw HTTP body is bound to this field.
-                         google.api.HttpBody http_body = 2;
-
-                      }
-
-                      service ResourceService {
-                         rpc GetResource(GetResourceRequest)
-                            returns (google.api.HttpBody);
-
-                         rpc UpdateResource(google.api.HttpBody)
-                            returns (google.protobuf.Empty);
-
-                      }
-
-                   Example with streaming methods:
-
-                      service CaldavService {
-                         rpc GetCalendar(stream google.api.HttpBody)
-                            returns (stream google.api.HttpBody);
-
-                         rpc UpdateCalendar(stream google.api.HttpBody)
-                            returns (stream google.api.HttpBody);
-
-                      }
-
-                   Use of this type only changes how the request and
-                   response bodies are handled, all other features will
-                   continue to work unchanged.
-
-        """
-        # Create or coerce a protobuf request object.
-        # - The request isn't a proto-plus wrapped type,
-        #   so it must be constructed via keyword expansion.
-        if isinstance(request, dict):
-            request = httpbody_pb2.HttpBody(**request)
-        elif not request:
-            request = httpbody_pb2.HttpBody()
-
-        # Wrap the RPC method; this adds retry and timeout information,
-        # and friendly error handling.
-        rpc = self._client._transport._wrapped_methods[
-            self._client._transport.post_resource
-        ]
-
-        # Validate the universe domain.
-        self._client._validate_universe_domain()
-
-        # Send the request.
-        response = await rpc(
-            request,
-            retry=retry,
-            timeout=timeout,
-            metadata=metadata,
-        )
-
-        # Done; return the response.
-        return response
-
-    async def delete_resource(
-        self,
-        request: Optional[Union[httpbody_pb2.HttpBody, dict]] = None,
-        *,
-        retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: Union[float, object] = gapic_v1.method.DEFAULT,
-        metadata: Sequence[Tuple[str, str]] = (),
-    ) -> httpbody_pb2.HttpBody:
-        r"""DeleteResource performs an HTTP DELETE on the
-        Kubernetes API Server.
-
-        .. code-block:: python
-
-            # This snippet has been automatically generated and should be regarded as a
-            # code template only.
-            # It will require modifications to work:
-            # - It may require correct/in-range values for request initialization.
-            # - It may require specifying regional endpoints when creating the service
-            #   client as shown in:
-            #   https://googleapis.dev/python/google-api-core/latest/client_options.html
-            from google.api import httpbody_pb2  # type: ignore
-            from google.cloud.gkeconnect import gateway_v1beta1
-
-            async def sample_delete_resource():
-                # Create a client
-                client = gateway_v1beta1.GatewayServiceAsyncClient()
-
-                # Initialize request argument(s)
-                request = httpbody_pb2.HttpBody(
-                )
-
-                # Make the request
-                response = await client.delete_resource(request=request)
-
-                # Handle the response
-                print(response)
-
-        Args:
-            request (Optional[Union[google.api.httpbody_pb2.HttpBody, dict]]):
-                The request object. Message that represents an arbitrary HTTP body. It
-                should only be used for payload formats that can't be
-                represented as JSON, such as raw binary or an HTML page.
-
-                This message can be used both in streaming and
-                non-streaming API methods in the request as well as the
-                response.
-
-                It can be used as a top-level request field, which is
-                convenient if one wants to extract parameters from
-                either the URL or HTTP template into the request fields
-                and also want access to the raw HTTP body.
-
-                Example:
-
-                ::
-
-                    message GetResourceRequest {
-                      // A unique request id.
-                      string request_id = 1;
-
-                      // The raw HTTP body is bound to this field.
-                      google.api.HttpBody http_body = 2;
-
-                    }
-
-                    service ResourceService {
-                      rpc GetResource(GetResourceRequest)
-                        returns (google.api.HttpBody);
-                      rpc UpdateResource(google.api.HttpBody)
-                        returns (google.protobuf.Empty);
-
-                    }
-
-                Example with streaming methods:
-
-                ::
-
-                    service CaldavService {
-                      rpc GetCalendar(stream google.api.HttpBody)
-                        returns (stream google.api.HttpBody);
-                      rpc UpdateCalendar(stream google.api.HttpBody)
-                        returns (stream google.api.HttpBody);
-
-                    }
-
-                Use of this type only changes how the request and
-                response bodies are handled, all other features will
-                continue to work unchanged.
-            retry (google.api_core.retry_async.AsyncRetry): Designation of what errors, if any,
-                should be retried.
-            timeout (float): The timeout for this request.
-            metadata (Sequence[Tuple[str, str]]): Strings which should be
-                sent along with the request as metadata.
-
-        Returns:
-            google.api.httpbody_pb2.HttpBody:
-                Message that represents an arbitrary HTTP body. It should only be used for
-                   payload formats that can't be represented as JSON,
-                   such as raw binary or an HTML page.
-
-                   This message can be used both in streaming and
-                   non-streaming API methods in the request as well as
-                   the response.
-
-                   It can be used as a top-level request field, which is
-                   convenient if one wants to extract parameters from
-                   either the URL or HTTP template into the request
-                   fields and also want access to the raw HTTP body.
-
-                   Example:
-
-                      message GetResourceRequest {
-                         // A unique request id. string request_id = 1;
-
-                         // The raw HTTP body is bound to this field.
-                         google.api.HttpBody http_body = 2;
-
-                      }
-
-                      service ResourceService {
-                         rpc GetResource(GetResourceRequest)
-                            returns (google.api.HttpBody);
-
-                         rpc UpdateResource(google.api.HttpBody)
-                            returns (google.protobuf.Empty);
-
-                      }
-
-                   Example with streaming methods:
-
-                      service CaldavService {
-                         rpc GetCalendar(stream google.api.HttpBody)
-                            returns (stream google.api.HttpBody);
-
-                         rpc UpdateCalendar(stream google.api.HttpBody)
-                            returns (stream google.api.HttpBody);
-
-                      }
-
-                   Use of this type only changes how the request and
-                   response bodies are handled, all other features will
-                   continue to work unchanged.
-
-        """
-        # Create or coerce a protobuf request object.
-        # - The request isn't a proto-plus wrapped type,
-        #   so it must be constructed via keyword expansion.
-        if isinstance(request, dict):
-            request = httpbody_pb2.HttpBody(**request)
-        elif not request:
-            request = httpbody_pb2.HttpBody()
-
-        # Wrap the RPC method; this adds retry and timeout information,
-        # and friendly error handling.
-        rpc = self._client._transport._wrapped_methods[
-            self._client._transport.delete_resource
-        ]
-
-        # Validate the universe domain.
-        self._client._validate_universe_domain()
-
-        # Send the request.
-        response = await rpc(
-            request,
-            retry=retry,
-            timeout=timeout,
-            metadata=metadata,
-        )
-
-        # Done; return the response.
-        return response
-
-    async def put_resource(
-        self,
-        request: Optional[Union[httpbody_pb2.HttpBody, dict]] = None,
-        *,
-        retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: Union[float, object] = gapic_v1.method.DEFAULT,
-        metadata: Sequence[Tuple[str, str]] = (),
-    ) -> httpbody_pb2.HttpBody:
-        r"""PutResource performs an HTTP PUT on the Kubernetes
-        API Server.
-
-        .. code-block:: python
-
-            # This snippet has been automatically generated and should be regarded as a
-            # code template only.
-            # It will require modifications to work:
-            # - It may require correct/in-range values for request initialization.
-            # - It may require specifying regional endpoints when creating the service
-            #   client as shown in:
-            #   https://googleapis.dev/python/google-api-core/latest/client_options.html
-            from google.api import httpbody_pb2  # type: ignore
-            from google.cloud.gkeconnect import gateway_v1beta1
-
-            async def sample_put_resource():
-                # Create a client
-                client = gateway_v1beta1.GatewayServiceAsyncClient()
-
-                # Initialize request argument(s)
-                request = httpbody_pb2.HttpBody(
-                )
-
-                # Make the request
-                response = await client.put_resource(request=request)
-
-                # Handle the response
-                print(response)
-
-        Args:
-            request (Optional[Union[google.api.httpbody_pb2.HttpBody, dict]]):
-                The request object. Message that represents an arbitrary HTTP body. It
-                should only be used for payload formats that can't be
-                represented as JSON, such as raw binary or an HTML page.
-
-                This message can be used both in streaming and
-                non-streaming API methods in the request as well as the
-                response.
-
-                It can be used as a top-level request field, which is
-                convenient if one wants to extract parameters from
-                either the URL or HTTP template into the request fields
-                and also want access to the raw HTTP body.
-
-                Example:
-
-                ::
-
-                    message GetResourceRequest {
-                      // A unique request id.
-                      string request_id = 1;
-
-                      // The raw HTTP body is bound to this field.
-                      google.api.HttpBody http_body = 2;
-
-                    }
-
-                    service ResourceService {
-                      rpc GetResource(GetResourceRequest)
-                        returns (google.api.HttpBody);
-                      rpc UpdateResource(google.api.HttpBody)
-                        returns (google.protobuf.Empty);
-
-                    }
-
-                Example with streaming methods:
-
-                ::
-
-                    service CaldavService {
-                      rpc GetCalendar(stream google.api.HttpBody)
-                        returns (stream google.api.HttpBody);
-                      rpc UpdateCalendar(stream google.api.HttpBody)
-                        returns (stream google.api.HttpBody);
-
-                    }
-
-                Use of this type only changes how the request and
-                response bodies are handled, all other features will
-                continue to work unchanged.
-            retry (google.api_core.retry_async.AsyncRetry): Designation of what errors, if any,
-                should be retried.
-            timeout (float): The timeout for this request.
-            metadata (Sequence[Tuple[str, str]]): Strings which should be
-                sent along with the request as metadata.
-
-        Returns:
-            google.api.httpbody_pb2.HttpBody:
-                Message that represents an arbitrary HTTP body. It should only be used for
-                   payload formats that can't be represented as JSON,
-                   such as raw binary or an HTML page.
-
-                   This message can be used both in streaming and
-                   non-streaming API methods in the request as well as
-                   the response.
-
-                   It can be used as a top-level request field, which is
-                   convenient if one wants to extract parameters from
-                   either the URL or HTTP template into the request
-                   fields and also want access to the raw HTTP body.
-
-                   Example:
-
-                      message GetResourceRequest {
-                         // A unique request id. string request_id = 1;
-
-                         // The raw HTTP body is bound to this field.
-                         google.api.HttpBody http_body = 2;
-
-                      }
-
-                      service ResourceService {
-                         rpc GetResource(GetResourceRequest)
-                            returns (google.api.HttpBody);
-
-                         rpc UpdateResource(google.api.HttpBody)
-                            returns (google.protobuf.Empty);
-
-                      }
-
-                   Example with streaming methods:
-
-                      service CaldavService {
-                         rpc GetCalendar(stream google.api.HttpBody)
-                            returns (stream google.api.HttpBody);
-
-                         rpc UpdateCalendar(stream google.api.HttpBody)
-                            returns (stream google.api.HttpBody);
-
-                      }
-
-                   Use of this type only changes how the request and
-                   response bodies are handled, all other features will
-                   continue to work unchanged.
-
-        """
-        # Create or coerce a protobuf request object.
-        # - The request isn't a proto-plus wrapped type,
-        #   so it must be constructed via keyword expansion.
-        if isinstance(request, dict):
-            request = httpbody_pb2.HttpBody(**request)
-        elif not request:
-            request = httpbody_pb2.HttpBody()
-
-        # Wrap the RPC method; this adds retry and timeout information,
-        # and friendly error handling.
-        rpc = self._client._transport._wrapped_methods[
-            self._client._transport.put_resource
-        ]
-
-        # Validate the universe domain.
-        self._client._validate_universe_domain()
-
-        # Send the request.
-        response = await rpc(
-            request,
-            retry=retry,
-            timeout=timeout,
-            metadata=metadata,
-        )
-
-        # Done; return the response.
-        return response
-
-    async def patch_resource(
-        self,
-        request: Optional[Union[httpbody_pb2.HttpBody, dict]] = None,
-        *,
-        retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: Union[float, object] = gapic_v1.method.DEFAULT,
-        metadata: Sequence[Tuple[str, str]] = (),
-    ) -> httpbody_pb2.HttpBody:
-        r"""PatchResource performs an HTTP PATCH on the
-        Kubernetes API Server.
-
-        .. code-block:: python
-
-            # This snippet has been automatically generated and should be regarded as a
-            # code template only.
-            # It will require modifications to work:
-            # - It may require correct/in-range values for request initialization.
-            # - It may require specifying regional endpoints when creating the service
-            #   client as shown in:
-            #   https://googleapis.dev/python/google-api-core/latest/client_options.html
-            from google.api import httpbody_pb2  # type: ignore
-            from google.cloud.gkeconnect import gateway_v1beta1
-
-            async def sample_patch_resource():
-                # Create a client
-                client = gateway_v1beta1.GatewayServiceAsyncClient()
-
-                # Initialize request argument(s)
-                request = httpbody_pb2.HttpBody(
-                )
-
-                # Make the request
-                response = await client.patch_resource(request=request)
-
-                # Handle the response
-                print(response)
-
-        Args:
-            request (Optional[Union[google.api.httpbody_pb2.HttpBody, dict]]):
-                The request object. Message that represents an arbitrary HTTP body. It
-                should only be used for payload formats that can't be
-                represented as JSON, such as raw binary or an HTML page.
-
-                This message can be used both in streaming and
-                non-streaming API methods in the request as well as the
-                response.
-
-                It can be used as a top-level request field, which is
-                convenient if one wants to extract parameters from
-                either the URL or HTTP template into the request fields
-                and also want access to the raw HTTP body.
-
-                Example:
-
-                ::
-
-                    message GetResourceRequest {
-                      // A unique request id.
-                      string request_id = 1;
-
-                      // The raw HTTP body is bound to this field.
-                      google.api.HttpBody http_body = 2;
-
-                    }
-
-                    service ResourceService {
-                      rpc GetResource(GetResourceRequest)
-                        returns (google.api.HttpBody);
-                      rpc UpdateResource(google.api.HttpBody)
-                        returns (google.protobuf.Empty);
-
-                    }
-
-                Example with streaming methods:
-
-                ::
-
-                    service CaldavService {
-                      rpc GetCalendar(stream google.api.HttpBody)
-                        returns (stream google.api.HttpBody);
-                      rpc UpdateCalendar(stream google.api.HttpBody)
-                        returns (stream google.api.HttpBody);
-
-                    }
-
-                Use of this type only changes how the request and
-                response bodies are handled, all other features will
-                continue to work unchanged.
-            retry (google.api_core.retry_async.AsyncRetry): Designation of what errors, if any,
-                should be retried.
-            timeout (float): The timeout for this request.
-            metadata (Sequence[Tuple[str, str]]): Strings which should be
-                sent along with the request as metadata.
-
-        Returns:
-            google.api.httpbody_pb2.HttpBody:
-                Message that represents an arbitrary HTTP body. It should only be used for
-                   payload formats that can't be represented as JSON,
-                   such as raw binary or an HTML page.
-
-                   This message can be used both in streaming and
-                   non-streaming API methods in the request as well as
-                   the response.
-
-                   It can be used as a top-level request field, which is
-                   convenient if one wants to extract parameters from
-                   either the URL or HTTP template into the request
-                   fields and also want access to the raw HTTP body.
-
-                   Example:
-
-                      message GetResourceRequest {
-                         // A unique request id. string request_id = 1;
-
-                         // The raw HTTP body is bound to this field.
-                         google.api.HttpBody http_body = 2;
-
-                      }
-
-                      service ResourceService {
-                         rpc GetResource(GetResourceRequest)
-                            returns (google.api.HttpBody);
-
-                         rpc UpdateResource(google.api.HttpBody)
-                            returns (google.protobuf.Empty);
-
-                      }
-
-                   Example with streaming methods:
-
-                      service CaldavService {
-                         rpc GetCalendar(stream google.api.HttpBody)
-                            returns (stream google.api.HttpBody);
-
-                         rpc UpdateCalendar(stream google.api.HttpBody)
-                            returns (stream google.api.HttpBody);
-
-                      }
-
-                   Use of this type only changes how the request and
-                   response bodies are handled, all other features will
-                   continue to work unchanged.
-
-        """
-        # Create or coerce a protobuf request object.
-        # - The request isn't a proto-plus wrapped type,
-        #   so it must be constructed via keyword expansion.
-        if isinstance(request, dict):
-            request = httpbody_pb2.HttpBody(**request)
-        elif not request:
-            request = httpbody_pb2.HttpBody()
-
-        # Wrap the RPC method; this adds retry and timeout information,
-        # and friendly error handling.
-        rpc = self._client._transport._wrapped_methods[
-            self._client._transport.patch_resource
-        ]
-
-        # Validate the universe domain.
-        self._client._validate_universe_domain()
-
-        # Send the request.
-        response = await rpc(
-            request,
-            retry=retry,
-            timeout=timeout,
-            metadata=metadata,
-        )
-
-        # Done; return the response.
-        return response
-
-    async def __aenter__(self) -> "GatewayServiceAsyncClient":
-        return self
-
-    async def __aexit__(self, exc_type, exc, tb):
-        await self.transport.close()
-
-
-DEFAULT_CLIENT_INFO = gapic_v1.client_info.ClientInfo(
-    gapic_version=package_version.__version__
-)
-
-
-__all__ = ("GatewayServiceAsyncClient",)
diff --git a/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/types/__init__.py b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/types/__init__.py
index 77c6c7a35ebe..2bfb31823e04 100644
--- a/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/types/__init__.py
+++ b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/types/__init__.py
@@ -13,5 +13,9 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
+from .control import GenerateCredentialsRequest, GenerateCredentialsResponse
 
-__all__ = ()
+__all__ = (
+    "GenerateCredentialsRequest",
+    "GenerateCredentialsResponse",
+)
diff --git a/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/types/control.py b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/types/control.py
new file mode 100644
index 000000000000..4afb5fd530f1
--- /dev/null
+++ b/packages/google-cloud-gke-connect-gateway/google/cloud/gkeconnect/gateway_v1beta1/types/control.py
@@ -0,0 +1,123 @@
+# -*- coding: utf-8 -*-
+# Copyright 2024 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+from __future__ import annotations
+
+from typing import MutableMapping, MutableSequence
+
+import proto  # type: ignore
+
+__protobuf__ = proto.module(
+    package="google.cloud.gkeconnect.gateway.v1beta1",
+    manifest={
+        "GenerateCredentialsRequest",
+        "GenerateCredentialsResponse",
+    },
+)
+
+
+class GenerateCredentialsRequest(proto.Message):
+    r"""A request for connection information for a particular
+    membership.
+
+    Attributes:
+        name (str):
+            Required. The Fleet membership resource.
+        force_use_agent (bool):
+            Optional. Whether to force the use of Connect
+            Agent-based transport.
+            This will return a configuration that uses
+            Connect Agent as the underlying transport
+            mechanism for cluster types that would otherwise
+            have used a different transport. Requires that
+            Connect Agent be installed on the cluster.
+            Setting this field to false is equivalent to not
+            setting it.
+        version (str):
+            Optional. The Connect Gateway version to be
+            used in the resulting configuration.
+
+            Leave this field blank to let the server choose
+            the version (recommended).
+        kubernetes_namespace (str):
+            Optional. The namespace to use in the kubeconfig context.
+
+            If this field is specified, the server will set the
+            ``namespace`` field in kubeconfig context. If not specified,
+            the ``namespace`` field is omitted.
+        operating_system (google.cloud.gkeconnect.gateway_v1beta1.types.GenerateCredentialsRequest.OperatingSystem):
+            Optional. The operating system where the
+            kubeconfig will be used.
+    """
+
+    class OperatingSystem(proto.Enum):
+        r"""Operating systems requiring specialized kubeconfigs.
+
+        Values:
+            OPERATING_SYSTEM_UNSPECIFIED (0):
+                Generates a kubeconfig that works for all
+                operating systems not defined below.
+            OPERATING_SYSTEM_WINDOWS (1):
+                Generates a kubeconfig that is specifically
+                designed to work with Windows.
+        """
+        OPERATING_SYSTEM_UNSPECIFIED = 0
+        OPERATING_SYSTEM_WINDOWS = 1
+
+    name: str = proto.Field(
+        proto.STRING,
+        number=1,
+    )
+    force_use_agent: bool = proto.Field(
+        proto.BOOL,
+        number=2,
+    )
+    version: str = proto.Field(
+        proto.STRING,
+        number=3,
+    )
+    kubernetes_namespace: str = proto.Field(
+        proto.STRING,
+        number=4,
+    )
+    operating_system: OperatingSystem = proto.Field(
+        proto.ENUM,
+        number=5,
+        enum=OperatingSystem,
+    )
+
+
+class GenerateCredentialsResponse(proto.Message):
+    r"""Connection information for a particular membership.
+
+    Attributes:
+        kubeconfig (bytes):
+            A full YAML kubeconfig in serialized format.
+        endpoint (str):
+            The generated URI of the cluster as accessed
+            through the Connect Gateway API.
+    """
+
+    kubeconfig: bytes = proto.Field(
+        proto.BYTES,
+        number=1,
+    )
+    endpoint: str = proto.Field(
+        proto.STRING,
+        number=2,
+    )
+
+
+__all__ = tuple(sorted(__protobuf__.manifest))
diff --git a/packages/google-cloud-gke-connect-gateway/samples/generated_samples/connectgateway_v1beta1_generated_gateway_service_patch_resource_async.py b/packages/google-cloud-gke-connect-gateway/samples/generated_samples/connectgateway_v1_generated_gateway_control_generate_credentials_async.py
similarity index 75%
rename from packages/google-cloud-gke-connect-gateway/samples/generated_samples/connectgateway_v1beta1_generated_gateway_service_patch_resource_async.py
rename to packages/google-cloud-gke-connect-gateway/samples/generated_samples/connectgateway_v1_generated_gateway_control_generate_credentials_async.py
index 2351568e5723..ead6fc1342dd 100644
--- a/packages/google-cloud-gke-connect-gateway/samples/generated_samples/connectgateway_v1beta1_generated_gateway_service_patch_resource_async.py
+++ b/packages/google-cloud-gke-connect-gateway/samples/generated_samples/connectgateway_v1_generated_gateway_control_generate_credentials_async.py
@@ -15,7 +15,7 @@
 #
 # Generated code. DO NOT EDIT!
 #
-# Snippet for PatchResource
+# Snippet for GenerateCredentials
 # NOTE: This snippet has been automatically generated for illustrative purposes only.
 # It may require modifications to work in your environment.
 
@@ -23,7 +23,7 @@
 #   python3 -m pip install google-cloud-gke-connect-gateway
 
 
-# [START connectgateway_v1beta1_generated_GatewayService_PatchResource_async]
+# [START connectgateway_v1_generated_GatewayControl_GenerateCredentials_async]
 # This snippet has been automatically generated and should be regarded as a
 # code template only.
 # It will require modifications to work:
@@ -31,22 +31,22 @@
 # - It may require specifying regional endpoints when creating the service
 #   client as shown in:
 #   https://googleapis.dev/python/google-api-core/latest/client_options.html
-from google.api import httpbody_pb2  # type: ignore
-from google.cloud.gkeconnect import gateway_v1beta1
+from google.cloud.gkeconnect import gateway_v1
 
 
-async def sample_patch_resource():
+async def sample_generate_credentials():
     # Create a client
-    client = gateway_v1beta1.GatewayServiceAsyncClient()
+    client = gateway_v1.GatewayControlAsyncClient()
 
     # Initialize request argument(s)
-    request = httpbody_pb2.HttpBody(
+    request = gateway_v1.GenerateCredentialsRequest(
+        name="name_value",
     )
 
     # Make the request
-    response = await client.patch_resource(request=request)
+    response = await client.generate_credentials(request=request)
 
     # Handle the response
     print(response)
 
-# [END connectgateway_v1beta1_generated_GatewayService_PatchResource_async]
+# [END connectgateway_v1_generated_GatewayControl_GenerateCredentials_async]
diff --git a/packages/google-cloud-gke-connect-gateway/samples/generated_samples/connectgateway_v1beta1_generated_gateway_service_patch_resource_sync.py b/packages/google-cloud-gke-connect-gateway/samples/generated_samples/connectgateway_v1_generated_gateway_control_generate_credentials_sync.py
similarity index 75%
rename from packages/google-cloud-gke-connect-gateway/samples/generated_samples/connectgateway_v1beta1_generated_gateway_service_patch_resource_sync.py
rename to packages/google-cloud-gke-connect-gateway/samples/generated_samples/connectgateway_v1_generated_gateway_control_generate_credentials_sync.py
index e88cf56e0b48..fcb75ad701c7 100644
--- a/packages/google-cloud-gke-connect-gateway/samples/generated_samples/connectgateway_v1beta1_generated_gateway_service_patch_resource_sync.py
+++ b/packages/google-cloud-gke-connect-gateway/samples/generated_samples/connectgateway_v1_generated_gateway_control_generate_credentials_sync.py
@@ -15,7 +15,7 @@
 #
 # Generated code. DO NOT EDIT!
 #
-# Snippet for PatchResource
+# Snippet for GenerateCredentials
 # NOTE: This snippet has been automatically generated for illustrative purposes only.
 # It may require modifications to work in your environment.
 
@@ -23,7 +23,7 @@
 #   python3 -m pip install google-cloud-gke-connect-gateway
 
 
-# [START connectgateway_v1beta1_generated_GatewayService_PatchResource_sync]
+# [START connectgateway_v1_generated_GatewayControl_GenerateCredentials_sync]
 # This snippet has been automatically generated and should be regarded as a
 # code template only.
 # It will require modifications to work:
@@ -31,22 +31,22 @@
 # - It may require specifying regional endpoints when creating the service
 #   client as shown in:
 #   https://googleapis.dev/python/google-api-core/latest/client_options.html
-from google.api import httpbody_pb2  # type: ignore
-from google.cloud.gkeconnect import gateway_v1beta1
+from google.cloud.gkeconnect import gateway_v1
 
 
-def sample_patch_resource():
+def sample_generate_credentials():
     # Create a client
-    client = gateway_v1beta1.GatewayServiceClient()
+    client = gateway_v1.GatewayControlClient()
 
     # Initialize request argument(s)
-    request = httpbody_pb2.HttpBody(
+    request = gateway_v1.GenerateCredentialsRequest(
+        name="name_value",
     )
 
     # Make the request
-    response = client.patch_resource(request=request)
+    response = client.generate_credentials(request=request)
 
     # Handle the response
     print(response)
 
-# [END connectgateway_v1beta1_generated_GatewayService_PatchResource_sync]
+# [END connectgateway_v1_generated_GatewayControl_GenerateCredentials_sync]
diff --git a/packages/google-cloud-gke-connect-gateway/samples/generated_samples/connectgateway_v1beta1_generated_gateway_service_delete_resource_async.py b/packages/google-cloud-gke-connect-gateway/samples/generated_samples/connectgateway_v1beta1_generated_gateway_control_generate_credentials_async.py
similarity index 76%
rename from packages/google-cloud-gke-connect-gateway/samples/generated_samples/connectgateway_v1beta1_generated_gateway_service_delete_resource_async.py
rename to packages/google-cloud-gke-connect-gateway/samples/generated_samples/connectgateway_v1beta1_generated_gateway_control_generate_credentials_async.py
index fb088f6698bd..61202c081a3f 100644
--- a/packages/google-cloud-gke-connect-gateway/samples/generated_samples/connectgateway_v1beta1_generated_gateway_service_delete_resource_async.py
+++ b/packages/google-cloud-gke-connect-gateway/samples/generated_samples/connectgateway_v1beta1_generated_gateway_control_generate_credentials_async.py
@@ -15,7 +15,7 @@
 #
 # Generated code. DO NOT EDIT!
 #
-# Snippet for DeleteResource
+# Snippet for GenerateCredentials
 # NOTE: This snippet has been automatically generated for illustrative purposes only.
 # It may require modifications to work in your environment.
 
@@ -23,7 +23,7 @@
 #   python3 -m pip install google-cloud-gke-connect-gateway
 
 
-# [START connectgateway_v1beta1_generated_GatewayService_DeleteResource_async]
+# [START connectgateway_v1beta1_generated_GatewayControl_GenerateCredentials_async]
 # This snippet has been automatically generated and should be regarded as a
 # code template only.
 # It will require modifications to work:
@@ -31,22 +31,22 @@
 # - It may require specifying regional endpoints when creating the service
 #   client as shown in:
 #   https://googleapis.dev/python/google-api-core/latest/client_options.html
-from google.api import httpbody_pb2  # type: ignore
 from google.cloud.gkeconnect import gateway_v1beta1
 
 
-async def sample_delete_resource():
+async def sample_generate_credentials():
     # Create a client
-    client = gateway_v1beta1.GatewayServiceAsyncClient()
+    client = gateway_v1beta1.GatewayControlAsyncClient()
 
     # Initialize request argument(s)
-    request = httpbody_pb2.HttpBody(
+    request = gateway_v1beta1.GenerateCredentialsRequest(
+        name="name_value",
     )
 
     # Make the request
-    response = await client.delete_resource(request=request)
+    response = await client.generate_credentials(request=request)
 
     # Handle the response
     print(response)
 
-# [END connectgateway_v1beta1_generated_GatewayService_DeleteResource_async]
+# [END connectgateway_v1beta1_generated_GatewayControl_GenerateCredentials_async]
diff --git a/packages/google-cloud-gke-connect-gateway/samples/generated_samples/connectgateway_v1beta1_generated_gateway_service_get_resource_sync.py b/packages/google-cloud-gke-connect-gateway/samples/generated_samples/connectgateway_v1beta1_generated_gateway_control_generate_credentials_sync.py
similarity index 77%
rename from packages/google-cloud-gke-connect-gateway/samples/generated_samples/connectgateway_v1beta1_generated_gateway_service_get_resource_sync.py
rename to packages/google-cloud-gke-connect-gateway/samples/generated_samples/connectgateway_v1beta1_generated_gateway_control_generate_credentials_sync.py
index c83488e8f680..87603404a7a2 100644
--- a/packages/google-cloud-gke-connect-gateway/samples/generated_samples/connectgateway_v1beta1_generated_gateway_service_get_resource_sync.py
+++ b/packages/google-cloud-gke-connect-gateway/samples/generated_samples/connectgateway_v1beta1_generated_gateway_control_generate_credentials_sync.py
@@ -15,7 +15,7 @@
 #
 # Generated code. DO NOT EDIT!
 #
-# Snippet for GetResource
+# Snippet for GenerateCredentials
 # NOTE: This snippet has been automatically generated for illustrative purposes only.
 # It may require modifications to work in your environment.
 
@@ -23,7 +23,7 @@
 #   python3 -m pip install google-cloud-gke-connect-gateway
 
 
-# [START connectgateway_v1beta1_generated_GatewayService_GetResource_sync]
+# [START connectgateway_v1beta1_generated_GatewayControl_GenerateCredentials_sync]
 # This snippet has been automatically generated and should be regarded as a
 # code template only.
 # It will require modifications to work:
@@ -31,22 +31,22 @@
 # - It may require specifying regional endpoints when creating the service
 #   client as shown in:
 #   https://googleapis.dev/python/google-api-core/latest/client_options.html
-from google.api import httpbody_pb2  # type: ignore
 from google.cloud.gkeconnect import gateway_v1beta1
 
 
-def sample_get_resource():
+def sample_generate_credentials():
     # Create a client
-    client = gateway_v1beta1.GatewayServiceClient()
+    client = gateway_v1beta1.GatewayControlClient()
 
     # Initialize request argument(s)
-    request = httpbody_pb2.HttpBody(
+    request = gateway_v1beta1.GenerateCredentialsRequest(
+        name="name_value",
     )
 
     # Make the request
-    response = client.get_resource(request=request)
+    response = client.generate_credentials(request=request)
 
     # Handle the response
     print(response)
 
-# [END connectgateway_v1beta1_generated_GatewayService_GetResource_sync]
+# [END connectgateway_v1beta1_generated_GatewayControl_GenerateCredentials_sync]
diff --git a/packages/google-cloud-gke-connect-gateway/samples/generated_samples/connectgateway_v1beta1_generated_gateway_service_post_resource_async.py b/packages/google-cloud-gke-connect-gateway/samples/generated_samples/connectgateway_v1beta1_generated_gateway_service_post_resource_async.py
deleted file mode 100644
index bda10b9a013a..000000000000
--- a/packages/google-cloud-gke-connect-gateway/samples/generated_samples/connectgateway_v1beta1_generated_gateway_service_post_resource_async.py
+++ /dev/null
@@ -1,52 +0,0 @@
-# -*- coding: utf-8 -*-
-# Copyright 2024 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-# Generated code. DO NOT EDIT!
-#
-# Snippet for PostResource
-# NOTE: This snippet has been automatically generated for illustrative purposes only.
-# It may require modifications to work in your environment.
-
-# To install the latest published package dependency, execute the following:
-#   python3 -m pip install google-cloud-gke-connect-gateway
-
-
-# [START connectgateway_v1beta1_generated_GatewayService_PostResource_async]
-# This snippet has been automatically generated and should be regarded as a
-# code template only.
-# It will require modifications to work:
-# - It may require correct/in-range values for request initialization.
-# - It may require specifying regional endpoints when creating the service
-#   client as shown in:
-#   https://googleapis.dev/python/google-api-core/latest/client_options.html
-from google.api import httpbody_pb2  # type: ignore
-from google.cloud.gkeconnect import gateway_v1beta1
-
-
-async def sample_post_resource():
-    # Create a client
-    client = gateway_v1beta1.GatewayServiceAsyncClient()
-
-    # Initialize request argument(s)
-    request = httpbody_pb2.HttpBody(
-    )
-
-    # Make the request
-    response = await client.post_resource(request=request)
-
-    # Handle the response
-    print(response)
-
-# [END connectgateway_v1beta1_generated_GatewayService_PostResource_async]
diff --git a/packages/google-cloud-gke-connect-gateway/samples/generated_samples/connectgateway_v1beta1_generated_gateway_service_post_resource_sync.py b/packages/google-cloud-gke-connect-gateway/samples/generated_samples/connectgateway_v1beta1_generated_gateway_service_post_resource_sync.py
deleted file mode 100644
index 2a5747eb1c12..000000000000
--- a/packages/google-cloud-gke-connect-gateway/samples/generated_samples/connectgateway_v1beta1_generated_gateway_service_post_resource_sync.py
+++ /dev/null
@@ -1,52 +0,0 @@
-# -*- coding: utf-8 -*-
-# Copyright 2024 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-# Generated code. DO NOT EDIT!
-#
-# Snippet for PostResource
-# NOTE: This snippet has been automatically generated for illustrative purposes only.
-# It may require modifications to work in your environment.
-
-# To install the latest published package dependency, execute the following:
-#   python3 -m pip install google-cloud-gke-connect-gateway
-
-
-# [START connectgateway_v1beta1_generated_GatewayService_PostResource_sync]
-# This snippet has been automatically generated and should be regarded as a
-# code template only.
-# It will require modifications to work:
-# - It may require correct/in-range values for request initialization.
-# - It may require specifying regional endpoints when creating the service
-#   client as shown in:
-#   https://googleapis.dev/python/google-api-core/latest/client_options.html
-from google.api import httpbody_pb2  # type: ignore
-from google.cloud.gkeconnect import gateway_v1beta1
-
-
-def sample_post_resource():
-    # Create a client
-    client = gateway_v1beta1.GatewayServiceClient()
-
-    # Initialize request argument(s)
-    request = httpbody_pb2.HttpBody(
-    )
-
-    # Make the request
-    response = client.post_resource(request=request)
-
-    # Handle the response
-    print(response)
-
-# [END connectgateway_v1beta1_generated_GatewayService_PostResource_sync]
diff --git a/packages/google-cloud-gke-connect-gateway/samples/generated_samples/connectgateway_v1beta1_generated_gateway_service_put_resource_async.py b/packages/google-cloud-gke-connect-gateway/samples/generated_samples/connectgateway_v1beta1_generated_gateway_service_put_resource_async.py
deleted file mode 100644
index 2dd639963534..000000000000
--- a/packages/google-cloud-gke-connect-gateway/samples/generated_samples/connectgateway_v1beta1_generated_gateway_service_put_resource_async.py
+++ /dev/null
@@ -1,52 +0,0 @@
-# -*- coding: utf-8 -*-
-# Copyright 2024 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-# Generated code. DO NOT EDIT!
-#
-# Snippet for PutResource
-# NOTE: This snippet has been automatically generated for illustrative purposes only.
-# It may require modifications to work in your environment.
-
-# To install the latest published package dependency, execute the following:
-#   python3 -m pip install google-cloud-gke-connect-gateway
-
-
-# [START connectgateway_v1beta1_generated_GatewayService_PutResource_async]
-# This snippet has been automatically generated and should be regarded as a
-# code template only.
-# It will require modifications to work:
-# - It may require correct/in-range values for request initialization.
-# - It may require specifying regional endpoints when creating the service
-#   client as shown in:
-#   https://googleapis.dev/python/google-api-core/latest/client_options.html
-from google.api import httpbody_pb2  # type: ignore
-from google.cloud.gkeconnect import gateway_v1beta1
-
-
-async def sample_put_resource():
-    # Create a client
-    client = gateway_v1beta1.GatewayServiceAsyncClient()
-
-    # Initialize request argument(s)
-    request = httpbody_pb2.HttpBody(
-    )
-
-    # Make the request
-    response = await client.put_resource(request=request)
-
-    # Handle the response
-    print(response)
-
-# [END connectgateway_v1beta1_generated_GatewayService_PutResource_async]
diff --git a/packages/google-cloud-gke-connect-gateway/samples/generated_samples/connectgateway_v1beta1_generated_gateway_service_put_resource_sync.py b/packages/google-cloud-gke-connect-gateway/samples/generated_samples/connectgateway_v1beta1_generated_gateway_service_put_resource_sync.py
deleted file mode 100644
index e549ff995cd5..000000000000
--- a/packages/google-cloud-gke-connect-gateway/samples/generated_samples/connectgateway_v1beta1_generated_gateway_service_put_resource_sync.py
+++ /dev/null
@@ -1,52 +0,0 @@
-# -*- coding: utf-8 -*-
-# Copyright 2024 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-# Generated code. DO NOT EDIT!
-#
-# Snippet for PutResource
-# NOTE: This snippet has been automatically generated for illustrative purposes only.
-# It may require modifications to work in your environment.
-
-# To install the latest published package dependency, execute the following:
-#   python3 -m pip install google-cloud-gke-connect-gateway
-
-
-# [START connectgateway_v1beta1_generated_GatewayService_PutResource_sync]
-# This snippet has been automatically generated and should be regarded as a
-# code template only.
-# It will require modifications to work:
-# - It may require correct/in-range values for request initialization.
-# - It may require specifying regional endpoints when creating the service
-#   client as shown in:
-#   https://googleapis.dev/python/google-api-core/latest/client_options.html
-from google.api import httpbody_pb2  # type: ignore
-from google.cloud.gkeconnect import gateway_v1beta1
-
-
-def sample_put_resource():
-    # Create a client
-    client = gateway_v1beta1.GatewayServiceClient()
-
-    # Initialize request argument(s)
-    request = httpbody_pb2.HttpBody(
-    )
-
-    # Make the request
-    response = client.put_resource(request=request)
-
-    # Handle the response
-    print(response)
-
-# [END connectgateway_v1beta1_generated_GatewayService_PutResource_sync]
diff --git a/packages/google-cloud-gke-connect-gateway/samples/generated_samples/snippet_metadata_google.cloud.gkeconnect.gateway.v1.json b/packages/google-cloud-gke-connect-gateway/samples/generated_samples/snippet_metadata_google.cloud.gkeconnect.gateway.v1.json
new file mode 100644
index 000000000000..0b1343a8f6ad
--- /dev/null
+++ b/packages/google-cloud-gke-connect-gateway/samples/generated_samples/snippet_metadata_google.cloud.gkeconnect.gateway.v1.json
@@ -0,0 +1,168 @@
+{
+  "clientLibrary": {
+    "apis": [
+      {
+        "id": "google.cloud.gkeconnect.gateway.v1",
+        "version": "v1"
+      }
+    ],
+    "language": "PYTHON",
+    "name": "google-cloud-gke-connect-gateway",
+    "version": "0.1.0"
+  },
+  "snippets": [
+    {
+      "canonical": true,
+      "clientMethod": {
+        "async": true,
+        "client": {
+          "fullName": "google.cloud.gkeconnect.gateway_v1.GatewayControlAsyncClient",
+          "shortName": "GatewayControlAsyncClient"
+        },
+        "fullName": "google.cloud.gkeconnect.gateway_v1.GatewayControlAsyncClient.generate_credentials",
+        "method": {
+          "fullName": "google.cloud.gkeconnect.gateway.v1.GatewayControl.GenerateCredentials",
+          "service": {
+            "fullName": "google.cloud.gkeconnect.gateway.v1.GatewayControl",
+            "shortName": "GatewayControl"
+          },
+          "shortName": "GenerateCredentials"
+        },
+        "parameters": [
+          {
+            "name": "request",
+            "type": "google.cloud.gkeconnect.gateway_v1.types.GenerateCredentialsRequest"
+          },
+          {
+            "name": "retry",
+            "type": "google.api_core.retry.Retry"
+          },
+          {
+            "name": "timeout",
+            "type": "float"
+          },
+          {
+            "name": "metadata",
+            "type": "Sequence[Tuple[str, str]"
+          }
+        ],
+        "resultType": "google.cloud.gkeconnect.gateway_v1.types.GenerateCredentialsResponse",
+        "shortName": "generate_credentials"
+      },
+      "description": "Sample for GenerateCredentials",
+      "file": "connectgateway_v1_generated_gateway_control_generate_credentials_async.py",
+      "language": "PYTHON",
+      "origin": "API_DEFINITION",
+      "regionTag": "connectgateway_v1_generated_GatewayControl_GenerateCredentials_async",
+      "segments": [
+        {
+          "end": 51,
+          "start": 27,
+          "type": "FULL"
+        },
+        {
+          "end": 51,
+          "start": 27,
+          "type": "SHORT"
+        },
+        {
+          "end": 40,
+          "start": 38,
+          "type": "CLIENT_INITIALIZATION"
+        },
+        {
+          "end": 45,
+          "start": 41,
+          "type": "REQUEST_INITIALIZATION"
+        },
+        {
+          "end": 48,
+          "start": 46,
+          "type": "REQUEST_EXECUTION"
+        },
+        {
+          "end": 52,
+          "start": 49,
+          "type": "RESPONSE_HANDLING"
+        }
+      ],
+      "title": "connectgateway_v1_generated_gateway_control_generate_credentials_async.py"
+    },
+    {
+      "canonical": true,
+      "clientMethod": {
+        "client": {
+          "fullName": "google.cloud.gkeconnect.gateway_v1.GatewayControlClient",
+          "shortName": "GatewayControlClient"
+        },
+        "fullName": "google.cloud.gkeconnect.gateway_v1.GatewayControlClient.generate_credentials",
+        "method": {
+          "fullName": "google.cloud.gkeconnect.gateway.v1.GatewayControl.GenerateCredentials",
+          "service": {
+            "fullName": "google.cloud.gkeconnect.gateway.v1.GatewayControl",
+            "shortName": "GatewayControl"
+          },
+          "shortName": "GenerateCredentials"
+        },
+        "parameters": [
+          {
+            "name": "request",
+            "type": "google.cloud.gkeconnect.gateway_v1.types.GenerateCredentialsRequest"
+          },
+          {
+            "name": "retry",
+            "type": "google.api_core.retry.Retry"
+          },
+          {
+            "name": "timeout",
+            "type": "float"
+          },
+          {
+            "name": "metadata",
+            "type": "Sequence[Tuple[str, str]"
+          }
+        ],
+        "resultType": "google.cloud.gkeconnect.gateway_v1.types.GenerateCredentialsResponse",
+        "shortName": "generate_credentials"
+      },
+      "description": "Sample for GenerateCredentials",
+      "file": "connectgateway_v1_generated_gateway_control_generate_credentials_sync.py",
+      "language": "PYTHON",
+      "origin": "API_DEFINITION",
+      "regionTag": "connectgateway_v1_generated_GatewayControl_GenerateCredentials_sync",
+      "segments": [
+        {
+          "end": 51,
+          "start": 27,
+          "type": "FULL"
+        },
+        {
+          "end": 51,
+          "start": 27,
+          "type": "SHORT"
+        },
+        {
+          "end": 40,
+          "start": 38,
+          "type": "CLIENT_INITIALIZATION"
+        },
+        {
+          "end": 45,
+          "start": 41,
+          "type": "REQUEST_INITIALIZATION"
+        },
+        {
+          "end": 48,
+          "start": 46,
+          "type": "REQUEST_EXECUTION"
+        },
+        {
+          "end": 52,
+          "start": 49,
+          "type": "RESPONSE_HANDLING"
+        }
+      ],
+      "title": "connectgateway_v1_generated_gateway_control_generate_credentials_sync.py"
+    }
+  ]
+}
diff --git a/packages/google-cloud-gke-connect-gateway/samples/generated_samples/snippet_metadata_google.cloud.gkeconnect.gateway.v1beta1.json b/packages/google-cloud-gke-connect-gateway/samples/generated_samples/snippet_metadata_google.cloud.gkeconnect.gateway.v1beta1.json
index 6586a7512b44..7ab5b8ced60e 100644
--- a/packages/google-cloud-gke-connect-gateway/samples/generated_samples/snippet_metadata_google.cloud.gkeconnect.gateway.v1beta1.json
+++ b/packages/google-cloud-gke-connect-gateway/samples/generated_samples/snippet_metadata_google.cloud.gkeconnect.gateway.v1beta1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-gke-connect-gateway",
-    "version": "0.1.0"
+    "version": "0.9.0"
   },
   "snippets": [
     {
@@ -16,22 +16,22 @@
       "clientMethod": {
         "async": true,
         "client": {
-          "fullName": "google.cloud.gkeconnect.gateway_v1beta1.GatewayServiceAsyncClient",
-          "shortName": "GatewayServiceAsyncClient"
+          "fullName": "google.cloud.gkeconnect.gateway_v1beta1.GatewayControlAsyncClient",
+          "shortName": "GatewayControlAsyncClient"
         },
-        "fullName": "google.cloud.gkeconnect.gateway_v1beta1.GatewayServiceAsyncClient.delete_resource",
+        "fullName": "google.cloud.gkeconnect.gateway_v1beta1.GatewayControlAsyncClient.generate_credentials",
         "method": {
-          "fullName": "google.cloud.gkeconnect.gateway.v1beta1.GatewayService.DeleteResource",
+          "fullName": "google.cloud.gkeconnect.gateway.v1beta1.GatewayControl.GenerateCredentials",
           "service": {
-            "fullName": "google.cloud.gkeconnect.gateway.v1beta1.GatewayService",
-            "shortName": "GatewayService"
+            "fullName": "google.cloud.gkeconnect.gateway.v1beta1.GatewayControl",
+            "shortName": "GatewayControl"
           },
-          "shortName": "DeleteResource"
+          "shortName": "GenerateCredentials"
         },
         "parameters": [
           {
             "name": "request",
-            "type": "google.api.httpbody_pb2.HttpBody"
+            "type": "google.cloud.gkeconnect.gateway_v1beta1.types.GenerateCredentialsRequest"
           },
           {
             "name": "retry",
@@ -46,14 +46,14 @@
             "type": "Sequence[Tuple[str, str]"
           }
         ],
-        "resultType": "google.api.httpbody_pb2.HttpBody",
-        "shortName": "delete_resource"
+        "resultType": "google.cloud.gkeconnect.gateway_v1beta1.types.GenerateCredentialsResponse",
+        "shortName": "generate_credentials"
       },
-      "description": "Sample for DeleteResource",
-      "file": "connectgateway_v1beta1_generated_gateway_service_delete_resource_async.py",
+      "description": "Sample for GenerateCredentials",
+      "file": "connectgateway_v1beta1_generated_gateway_control_generate_credentials_async.py",
       "language": "PYTHON",
       "origin": "API_DEFINITION",
-      "regionTag": "connectgateway_v1beta1_generated_GatewayService_DeleteResource_async",
+      "regionTag": "connectgateway_v1beta1_generated_GatewayControl_GenerateCredentials_async",
       "segments": [
         {
           "end": 51,
@@ -66,13 +66,13 @@
           "type": "SHORT"
         },
         {
-          "end": 41,
-          "start": 39,
+          "end": 40,
+          "start": 38,
           "type": "CLIENT_INITIALIZATION"
         },
         {
           "end": 45,
-          "start": 42,
+          "start": 41,
           "type": "REQUEST_INITIALIZATION"
         },
         {
@@ -86,28 +86,28 @@
           "type": "RESPONSE_HANDLING"
         }
       ],
-      "title": "connectgateway_v1beta1_generated_gateway_service_delete_resource_async.py"
+      "title": "connectgateway_v1beta1_generated_gateway_control_generate_credentials_async.py"
     },
     {
       "canonical": true,
       "clientMethod": {
         "client": {
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-          "shortName": "GatewayServiceClient"
+          "fullName": "google.cloud.gkeconnect.gateway_v1beta1.GatewayControlClient",
+          "shortName": "GatewayControlClient"
         },
-        "fullName": "google.cloud.gkeconnect.gateway_v1beta1.GatewayServiceClient.delete_resource",
+        "fullName": "google.cloud.gkeconnect.gateway_v1beta1.GatewayControlClient.generate_credentials",
         "method": {
-          "fullName": "google.cloud.gkeconnect.gateway.v1beta1.GatewayService.DeleteResource",
+          "fullName": "google.cloud.gkeconnect.gateway.v1beta1.GatewayControl.GenerateCredentials",
           "service": {
-            "fullName": "google.cloud.gkeconnect.gateway.v1beta1.GatewayService",
-            "shortName": "GatewayService"
+            "fullName": "google.cloud.gkeconnect.gateway.v1beta1.GatewayControl",
+            "shortName": "GatewayControl"
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+            "type": "google.cloud.gkeconnect.gateway_v1beta1.types.GenerateCredentialsRequest"
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@@ -122,14 +122,14 @@
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+        "resultType": "google.cloud.gkeconnect.gateway_v1beta1.types.GenerateCredentialsResponse",
+        "shortName": "generate_credentials"
       },
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-      "file": "connectgateway_v1beta1_generated_gateway_service_delete_resource_sync.py",
+      "description": "Sample for GenerateCredentials",
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+      "title": "connectgateway_v1beta1_generated_gateway_control_generate_credentials_sync.py"
     }
   ]
 }
diff --git a/packages/google-cloud-gke-connect-gateway/scripts/fixup_gateway_v1_keywords.py b/packages/google-cloud-gke-connect-gateway/scripts/fixup_gateway_v1_keywords.py
new file mode 100644
index 000000000000..10884865fe8a
--- /dev/null
+++ b/packages/google-cloud-gke-connect-gateway/scripts/fixup_gateway_v1_keywords.py
@@ -0,0 +1,176 @@
+#! /usr/bin/env python3
+# -*- coding: utf-8 -*-
+# Copyright 2024 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+import argparse
+import os
+import libcst as cst
+import pathlib
+import sys
+from typing import (Any, Callable, Dict, List, Sequence, Tuple)
+
+
+def partition(
+    predicate: Callable[[Any], bool],
+    iterator: Sequence[Any]
+) -> Tuple[List[Any], List[Any]]:
+    """A stable, out-of-place partition."""
+    results = ([], [])
+
+    for i in iterator:
+        results[int(predicate(i))].append(i)
+
+    # Returns trueList, falseList
+    return results[1], results[0]
+
+
+class gatewayCallTransformer(cst.CSTTransformer):
+    CTRL_PARAMS: Tuple[str] = ('retry', 'timeout', 'metadata')
+    METHOD_TO_PARAMS: Dict[str, Tuple[str]] = {
+        'generate_credentials': ('name', 'force_use_agent', 'version', 'kubernetes_namespace', 'operating_system', ),
+    }
+
+    def leave_Call(self, original: cst.Call, updated: cst.Call) -> cst.CSTNode:
+        try:
+            key = original.func.attr.value
+            kword_params = self.METHOD_TO_PARAMS[key]
+        except (AttributeError, KeyError):
+            # Either not a method from the API or too convoluted to be sure.
+            return updated
+
+        # If the existing code is valid, keyword args come after positional args.
+        # Therefore, all positional args must map to the first parameters.
+        args, kwargs = partition(lambda a: not bool(a.keyword), updated.args)
+        if any(k.keyword.value == "request" for k in kwargs):
+            # We've already fixed this file, don't fix it again.
+            return updated
+
+        kwargs, ctrl_kwargs = partition(
+            lambda a: a.keyword.value not in self.CTRL_PARAMS,
+            kwargs
+        )
+
+        args, ctrl_args = args[:len(kword_params)], args[len(kword_params):]
+        ctrl_kwargs.extend(cst.Arg(value=a.value, keyword=cst.Name(value=ctrl))
+                           for a, ctrl in zip(ctrl_args, self.CTRL_PARAMS))
+
+        request_arg = cst.Arg(
+            value=cst.Dict([
+                cst.DictElement(
+                    cst.SimpleString("'{}'".format(name)),
+cst.Element(value=arg.value)
+                )
+                # Note: the args + kwargs looks silly, but keep in mind that
+                # the control parameters had to be stripped out, and that
+                # those could have been passed positionally or by keyword.
+                for name, arg in zip(kword_params, args + kwargs)]),
+            keyword=cst.Name("request")
+        )
+
+        return updated.with_changes(
+            args=[request_arg] + ctrl_kwargs
+        )
+
+
+def fix_files(
+    in_dir: pathlib.Path,
+    out_dir: pathlib.Path,
+    *,
+    transformer=gatewayCallTransformer(),
+):
+    """Duplicate the input dir to the output dir, fixing file method calls.
+
+    Preconditions:
+    * in_dir is a real directory
+    * out_dir is a real, empty directory
+    """
+    pyfile_gen = (
+        pathlib.Path(os.path.join(root, f))
+        for root, _, files in os.walk(in_dir)
+        for f in files if os.path.splitext(f)[1] == ".py"
+    )
+
+    for fpath in pyfile_gen:
+        with open(fpath, 'r') as f:
+            src = f.read()
+
+        # Parse the code and insert method call fixes.
+        tree = cst.parse_module(src)
+        updated = tree.visit(transformer)
+
+        # Create the path and directory structure for the new file.
+        updated_path = out_dir.joinpath(fpath.relative_to(in_dir))
+        updated_path.parent.mkdir(parents=True, exist_ok=True)
+
+        # Generate the updated source file at the corresponding path.
+        with open(updated_path, 'w') as f:
+            f.write(updated.code)
+
+
+if __name__ == '__main__':
+    parser = argparse.ArgumentParser(
+        description="""Fix up source that uses the gateway client library.
+
+The existing sources are NOT overwritten but are copied to output_dir with changes made.
+
+Note: This tool operates at a best-effort level at converting positional
+      parameters in client method calls to keyword based parameters.
+      Cases where it WILL FAIL include
+      A) * or ** expansion in a method call.
+      B) Calls via function or method alias (includes free function calls)
+      C) Indirect or dispatched calls (e.g. the method is looked up dynamically)
+
+      These all constitute false negatives. The tool will also detect false
+      positives when an API method shares a name with another method.
+""")
+    parser.add_argument(
+        '-d',
+        '--input-directory',
+        required=True,
+        dest='input_dir',
+        help='the input directory to walk for python files to fix up',
+    )
+    parser.add_argument(
+        '-o',
+        '--output-directory',
+        required=True,
+        dest='output_dir',
+        help='the directory to output files fixed via un-flattening',
+    )
+    args = parser.parse_args()
+    input_dir = pathlib.Path(args.input_dir)
+    output_dir = pathlib.Path(args.output_dir)
+    if not input_dir.is_dir():
+        print(
+            f"input directory '{input_dir}' does not exist or is not a directory",
+            file=sys.stderr,
+        )
+        sys.exit(-1)
+
+    if not output_dir.is_dir():
+        print(
+            f"output directory '{output_dir}' does not exist or is not a directory",
+            file=sys.stderr,
+        )
+        sys.exit(-1)
+
+    if os.listdir(output_dir):
+        print(
+            f"output directory '{output_dir}' is not empty",
+            file=sys.stderr,
+        )
+        sys.exit(-1)
+
+    fix_files(input_dir, output_dir)
diff --git a/packages/google-cloud-gke-connect-gateway/scripts/fixup_gateway_v1beta1_keywords.py b/packages/google-cloud-gke-connect-gateway/scripts/fixup_gateway_v1beta1_keywords.py
index 56dd2027e348..10884865fe8a 100644
--- a/packages/google-cloud-gke-connect-gateway/scripts/fixup_gateway_v1beta1_keywords.py
+++ b/packages/google-cloud-gke-connect-gateway/scripts/fixup_gateway_v1beta1_keywords.py
@@ -39,11 +39,7 @@ def partition(
 class gatewayCallTransformer(cst.CSTTransformer):
     CTRL_PARAMS: Tuple[str] = ('retry', 'timeout', 'metadata')
     METHOD_TO_PARAMS: Dict[str, Tuple[str]] = {
-        'delete_resource': ('content_type', 'data', 'extensions', ),
-        'get_resource': ('content_type', 'data', 'extensions', ),
-        'patch_resource': ('content_type', 'data', 'extensions', ),
-        'post_resource': ('content_type', 'data', 'extensions', ),
-        'put_resource': ('content_type', 'data', 'extensions', ),
+        'generate_credentials': ('name', 'force_use_agent', 'version', 'kubernetes_namespace', 'operating_system', ),
     }
 
     def leave_Call(self, original: cst.Call, updated: cst.Call) -> cst.CSTNode:
diff --git a/packages/google-cloud-gke-connect-gateway/tests/unit/gapic/gateway_v1/__init__.py b/packages/google-cloud-gke-connect-gateway/tests/unit/gapic/gateway_v1/__init__.py
new file mode 100644
index 000000000000..8f6cf068242c
--- /dev/null
+++ b/packages/google-cloud-gke-connect-gateway/tests/unit/gapic/gateway_v1/__init__.py
@@ -0,0 +1,15 @@
+# -*- coding: utf-8 -*-
+# Copyright 2024 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
diff --git a/packages/google-cloud-gke-connect-gateway/tests/unit/gapic/gateway_v1beta1/test_gateway_service.py b/packages/google-cloud-gke-connect-gateway/tests/unit/gapic/gateway_v1/test_gateway_control.py
similarity index 56%
rename from packages/google-cloud-gke-connect-gateway/tests/unit/gapic/gateway_v1beta1/test_gateway_service.py
rename to packages/google-cloud-gke-connect-gateway/tests/unit/gapic/gateway_v1/test_gateway_control.py
index 97430148490d..67c78f2a83b7 100644
--- a/packages/google-cloud-gke-connect-gateway/tests/unit/gapic/gateway_v1beta1/test_gateway_service.py
+++ b/packages/google-cloud-gke-connect-gateway/tests/unit/gapic/gateway_v1/test_gateway_control.py
@@ -22,9 +22,10 @@
 except ImportError:  # pragma: NO COVER
     import mock
 
+from collections.abc import Iterable
+import json
 import math
 
-from google.api import httpbody_pb2  # type: ignore
 from google.api_core import gapic_v1, grpc_helpers, grpc_helpers_async, path_template
 from google.api_core import api_core_version, client_options
 from google.api_core import exceptions as core_exceptions
@@ -33,18 +34,21 @@
 from google.auth import credentials as ga_credentials
 from google.auth.exceptions import MutualTLSChannelError
 from google.oauth2 import service_account
-from google.protobuf import any_pb2  # type: ignore
+from google.protobuf import json_format
 import grpc
 from grpc.experimental import aio
 from proto.marshal.rules import wrappers
 from proto.marshal.rules.dates import DurationRule, TimestampRule
 import pytest
+from requests import PreparedRequest, Request, Response
+from requests.sessions import Session
 
-from google.cloud.gkeconnect.gateway_v1beta1.services.gateway_service import (
-    GatewayServiceAsyncClient,
-    GatewayServiceClient,
+from google.cloud.gkeconnect.gateway_v1.services.gateway_control import (
+    GatewayControlAsyncClient,
+    GatewayControlClient,
     transports,
 )
+from google.cloud.gkeconnect.gateway_v1.types import control
 
 
 def client_cert_source_callback():
@@ -80,40 +84,40 @@ def test__get_default_mtls_endpoint():
     sandbox_mtls_endpoint = "example.mtls.sandbox.googleapis.com"
     non_googleapi = "api.example.com"
 
-    assert GatewayServiceClient._get_default_mtls_endpoint(None) is None
+    assert GatewayControlClient._get_default_mtls_endpoint(None) is None
     assert (
-        GatewayServiceClient._get_default_mtls_endpoint(api_endpoint)
+        GatewayControlClient._get_default_mtls_endpoint(api_endpoint)
         == api_mtls_endpoint
     )
     assert (
-        GatewayServiceClient._get_default_mtls_endpoint(api_mtls_endpoint)
+        GatewayControlClient._get_default_mtls_endpoint(api_mtls_endpoint)
         == api_mtls_endpoint
     )
     assert (
-        GatewayServiceClient._get_default_mtls_endpoint(sandbox_endpoint)
+        GatewayControlClient._get_default_mtls_endpoint(sandbox_endpoint)
         == sandbox_mtls_endpoint
     )
     assert (
-        GatewayServiceClient._get_default_mtls_endpoint(sandbox_mtls_endpoint)
+        GatewayControlClient._get_default_mtls_endpoint(sandbox_mtls_endpoint)
         == sandbox_mtls_endpoint
     )
     assert (
-        GatewayServiceClient._get_default_mtls_endpoint(non_googleapi) == non_googleapi
+        GatewayControlClient._get_default_mtls_endpoint(non_googleapi) == non_googleapi
     )
 
 
 def test__read_environment_variables():
-    assert GatewayServiceClient._read_environment_variables() == (False, "auto", None)
+    assert GatewayControlClient._read_environment_variables() == (False, "auto", None)
 
     with mock.patch.dict(os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": "true"}):
-        assert GatewayServiceClient._read_environment_variables() == (
+        assert GatewayControlClient._read_environment_variables() == (
             True,
             "auto",
             None,
         )
 
     with mock.patch.dict(os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": "false"}):
-        assert GatewayServiceClient._read_environment_variables() == (
+        assert GatewayControlClient._read_environment_variables() == (
             False,
             "auto",
             None,
@@ -123,28 +127,28 @@ def test__read_environment_variables():
         os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": "Unsupported"}
     ):
         with pytest.raises(ValueError) as excinfo:
-            GatewayServiceClient._read_environment_variables()
+            GatewayControlClient._read_environment_variables()
     assert (
         str(excinfo.value)
         == "Environment variable `GOOGLE_API_USE_CLIENT_CERTIFICATE` must be either `true` or `false`"
     )
 
     with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "never"}):
-        assert GatewayServiceClient._read_environment_variables() == (
+        assert GatewayControlClient._read_environment_variables() == (
             False,
             "never",
             None,
         )
 
     with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "always"}):
-        assert GatewayServiceClient._read_environment_variables() == (
+        assert GatewayControlClient._read_environment_variables() == (
             False,
             "always",
             None,
         )
 
     with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "auto"}):
-        assert GatewayServiceClient._read_environment_variables() == (
+        assert GatewayControlClient._read_environment_variables() == (
             False,
             "auto",
             None,
@@ -152,14 +156,14 @@ def test__read_environment_variables():
 
     with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "Unsupported"}):
         with pytest.raises(MutualTLSChannelError) as excinfo:
-            GatewayServiceClient._read_environment_variables()
+            GatewayControlClient._read_environment_variables()
     assert (
         str(excinfo.value)
         == "Environment variable `GOOGLE_API_USE_MTLS_ENDPOINT` must be `never`, `auto` or `always`"
     )
 
     with mock.patch.dict(os.environ, {"GOOGLE_CLOUD_UNIVERSE_DOMAIN": "foo.com"}):
-        assert GatewayServiceClient._read_environment_variables() == (
+        assert GatewayControlClient._read_environment_variables() == (
             False,
             "auto",
             "foo.com",
@@ -170,13 +174,13 @@ def test__get_client_cert_source():
     mock_provided_cert_source = mock.Mock()
     mock_default_cert_source = mock.Mock()
 
-    assert GatewayServiceClient._get_client_cert_source(None, False) is None
+    assert GatewayControlClient._get_client_cert_source(None, False) is None
     assert (
-        GatewayServiceClient._get_client_cert_source(mock_provided_cert_source, False)
+        GatewayControlClient._get_client_cert_source(mock_provided_cert_source, False)
         is None
     )
     assert (
-        GatewayServiceClient._get_client_cert_source(mock_provided_cert_source, True)
+        GatewayControlClient._get_client_cert_source(mock_provided_cert_source, True)
         == mock_provided_cert_source
     )
 
@@ -188,11 +192,11 @@ def test__get_client_cert_source():
             return_value=mock_default_cert_source,
         ):
             assert (
-                GatewayServiceClient._get_client_cert_source(None, True)
+                GatewayControlClient._get_client_cert_source(None, True)
                 is mock_default_cert_source
             )
             assert (
-                GatewayServiceClient._get_client_cert_source(
+                GatewayControlClient._get_client_cert_source(
                     mock_provided_cert_source, "true"
                 )
                 is mock_provided_cert_source
@@ -200,64 +204,64 @@ def test__get_client_cert_source():
 
 
 @mock.patch.object(
-    GatewayServiceClient,
+    GatewayControlClient,
     "_DEFAULT_ENDPOINT_TEMPLATE",
-    modify_default_endpoint_template(GatewayServiceClient),
+    modify_default_endpoint_template(GatewayControlClient),
 )
 @mock.patch.object(
-    GatewayServiceAsyncClient,
+    GatewayControlAsyncClient,
     "_DEFAULT_ENDPOINT_TEMPLATE",
-    modify_default_endpoint_template(GatewayServiceAsyncClient),
+    modify_default_endpoint_template(GatewayControlAsyncClient),
 )
 def test__get_api_endpoint():
     api_override = "foo.com"
     mock_client_cert_source = mock.Mock()
-    default_universe = GatewayServiceClient._DEFAULT_UNIVERSE
-    default_endpoint = GatewayServiceClient._DEFAULT_ENDPOINT_TEMPLATE.format(
+    default_universe = GatewayControlClient._DEFAULT_UNIVERSE
+    default_endpoint = GatewayControlClient._DEFAULT_ENDPOINT_TEMPLATE.format(
         UNIVERSE_DOMAIN=default_universe
     )
     mock_universe = "bar.com"
-    mock_endpoint = GatewayServiceClient._DEFAULT_ENDPOINT_TEMPLATE.format(
+    mock_endpoint = GatewayControlClient._DEFAULT_ENDPOINT_TEMPLATE.format(
         UNIVERSE_DOMAIN=mock_universe
     )
 
     assert (
-        GatewayServiceClient._get_api_endpoint(
+        GatewayControlClient._get_api_endpoint(
             api_override, mock_client_cert_source, default_universe, "always"
         )
         == api_override
     )
     assert (
-        GatewayServiceClient._get_api_endpoint(
+        GatewayControlClient._get_api_endpoint(
             None, mock_client_cert_source, default_universe, "auto"
         )
-        == GatewayServiceClient.DEFAULT_MTLS_ENDPOINT
+        == GatewayControlClient.DEFAULT_MTLS_ENDPOINT
     )
     assert (
-        GatewayServiceClient._get_api_endpoint(None, None, default_universe, "auto")
+        GatewayControlClient._get_api_endpoint(None, None, default_universe, "auto")
         == default_endpoint
     )
     assert (
-        GatewayServiceClient._get_api_endpoint(None, None, default_universe, "always")
-        == GatewayServiceClient.DEFAULT_MTLS_ENDPOINT
+        GatewayControlClient._get_api_endpoint(None, None, default_universe, "always")
+        == GatewayControlClient.DEFAULT_MTLS_ENDPOINT
     )
     assert (
-        GatewayServiceClient._get_api_endpoint(
+        GatewayControlClient._get_api_endpoint(
             None, mock_client_cert_source, default_universe, "always"
         )
-        == GatewayServiceClient.DEFAULT_MTLS_ENDPOINT
+        == GatewayControlClient.DEFAULT_MTLS_ENDPOINT
     )
     assert (
-        GatewayServiceClient._get_api_endpoint(None, None, mock_universe, "never")
+        GatewayControlClient._get_api_endpoint(None, None, mock_universe, "never")
         == mock_endpoint
     )
     assert (
-        GatewayServiceClient._get_api_endpoint(None, None, default_universe, "never")
+        GatewayControlClient._get_api_endpoint(None, None, default_universe, "never")
         == default_endpoint
     )
 
     with pytest.raises(MutualTLSChannelError) as excinfo:
-        GatewayServiceClient._get_api_endpoint(
+        GatewayControlClient._get_api_endpoint(
             None, mock_client_cert_source, mock_universe, "auto"
         )
     assert (
@@ -271,29 +275,30 @@ def test__get_universe_domain():
     universe_domain_env = "bar.com"
 
     assert (
-        GatewayServiceClient._get_universe_domain(
+        GatewayControlClient._get_universe_domain(
             client_universe_domain, universe_domain_env
         )
         == client_universe_domain
     )
     assert (
-        GatewayServiceClient._get_universe_domain(None, universe_domain_env)
+        GatewayControlClient._get_universe_domain(None, universe_domain_env)
         == universe_domain_env
     )
     assert (
-        GatewayServiceClient._get_universe_domain(None, None)
-        == GatewayServiceClient._DEFAULT_UNIVERSE
+        GatewayControlClient._get_universe_domain(None, None)
+        == GatewayControlClient._DEFAULT_UNIVERSE
     )
 
     with pytest.raises(ValueError) as excinfo:
-        GatewayServiceClient._get_universe_domain("", None)
+        GatewayControlClient._get_universe_domain("", None)
     assert str(excinfo.value) == "Universe Domain cannot be an empty string."
 
 
 @pytest.mark.parametrize(
     "client_class,transport_class,transport_name",
     [
-        (GatewayServiceClient, transports.GatewayServiceGrpcTransport, "grpc"),
+        (GatewayControlClient, transports.GatewayControlGrpcTransport, "grpc"),
+        (GatewayControlClient, transports.GatewayControlRestTransport, "rest"),
     ],
 )
 def test__validate_universe_domain(client_class, transport_class, transport_name):
@@ -372,11 +377,12 @@ def test__validate_universe_domain(client_class, transport_class, transport_name
 @pytest.mark.parametrize(
     "client_class,transport_name",
     [
-        (GatewayServiceClient, "grpc"),
-        (GatewayServiceAsyncClient, "grpc_asyncio"),
+        (GatewayControlClient, "grpc"),
+        (GatewayControlAsyncClient, "grpc_asyncio"),
+        (GatewayControlClient, "rest"),
     ],
 )
-def test_gateway_service_client_from_service_account_info(client_class, transport_name):
+def test_gateway_control_client_from_service_account_info(client_class, transport_name):
     creds = ga_credentials.AnonymousCredentials()
     with mock.patch.object(
         service_account.Credentials, "from_service_account_info"
@@ -387,17 +393,22 @@ def test_gateway_service_client_from_service_account_info(client_class, transpor
         assert client.transport._credentials == creds
         assert isinstance(client, client_class)
 
-        assert client.transport._host == ("connectgateway.googleapis.com:443")
+        assert client.transport._host == (
+            "connectgateway.googleapis.com:443"
+            if transport_name in ["grpc", "grpc_asyncio"]
+            else "https://connectgateway.googleapis.com"
+        )
 
 
 @pytest.mark.parametrize(
     "transport_class,transport_name",
     [
-        (transports.GatewayServiceGrpcTransport, "grpc"),
-        (transports.GatewayServiceGrpcAsyncIOTransport, "grpc_asyncio"),
+        (transports.GatewayControlGrpcTransport, "grpc"),
+        (transports.GatewayControlGrpcAsyncIOTransport, "grpc_asyncio"),
+        (transports.GatewayControlRestTransport, "rest"),
     ],
 )
-def test_gateway_service_client_service_account_always_use_jwt(
+def test_gateway_control_client_service_account_always_use_jwt(
     transport_class, transport_name
 ):
     with mock.patch.object(
@@ -418,11 +429,12 @@ def test_gateway_service_client_service_account_always_use_jwt(
 @pytest.mark.parametrize(
     "client_class,transport_name",
     [
-        (GatewayServiceClient, "grpc"),
-        (GatewayServiceAsyncClient, "grpc_asyncio"),
+        (GatewayControlClient, "grpc"),
+        (GatewayControlAsyncClient, "grpc_asyncio"),
+        (GatewayControlClient, "rest"),
     ],
 )
-def test_gateway_service_client_from_service_account_file(client_class, transport_name):
+def test_gateway_control_client_from_service_account_file(client_class, transport_name):
     creds = ga_credentials.AnonymousCredentials()
     with mock.patch.object(
         service_account.Credentials, "from_service_account_file"
@@ -440,52 +452,58 @@ def test_gateway_service_client_from_service_account_file(client_class, transpor
         assert client.transport._credentials == creds
         assert isinstance(client, client_class)
 
-        assert client.transport._host == ("connectgateway.googleapis.com:443")
+        assert client.transport._host == (
+            "connectgateway.googleapis.com:443"
+            if transport_name in ["grpc", "grpc_asyncio"]
+            else "https://connectgateway.googleapis.com"
+        )
 
 
-def test_gateway_service_client_get_transport_class():
-    transport = GatewayServiceClient.get_transport_class()
+def test_gateway_control_client_get_transport_class():
+    transport = GatewayControlClient.get_transport_class()
     available_transports = [
-        transports.GatewayServiceGrpcTransport,
+        transports.GatewayControlGrpcTransport,
+        transports.GatewayControlRestTransport,
     ]
     assert transport in available_transports
 
-    transport = GatewayServiceClient.get_transport_class("grpc")
-    assert transport == transports.GatewayServiceGrpcTransport
+    transport = GatewayControlClient.get_transport_class("grpc")
+    assert transport == transports.GatewayControlGrpcTransport
 
 
 @pytest.mark.parametrize(
     "client_class,transport_class,transport_name",
     [
-        (GatewayServiceClient, transports.GatewayServiceGrpcTransport, "grpc"),
+        (GatewayControlClient, transports.GatewayControlGrpcTransport, "grpc"),
         (
-            GatewayServiceAsyncClient,
-            transports.GatewayServiceGrpcAsyncIOTransport,
+            GatewayControlAsyncClient,
+            transports.GatewayControlGrpcAsyncIOTransport,
             "grpc_asyncio",
         ),
+        (GatewayControlClient, transports.GatewayControlRestTransport, "rest"),
     ],
 )
 @mock.patch.object(
-    GatewayServiceClient,
+    GatewayControlClient,
     "_DEFAULT_ENDPOINT_TEMPLATE",
-    modify_default_endpoint_template(GatewayServiceClient),
+    modify_default_endpoint_template(GatewayControlClient),
 )
 @mock.patch.object(
-    GatewayServiceAsyncClient,
+    GatewayControlAsyncClient,
     "_DEFAULT_ENDPOINT_TEMPLATE",
-    modify_default_endpoint_template(GatewayServiceAsyncClient),
+    modify_default_endpoint_template(GatewayControlAsyncClient),
 )
-def test_gateway_service_client_client_options(
+def test_gateway_control_client_client_options(
     client_class, transport_class, transport_name
 ):
     # Check that if channel is provided we won't create a new one.
-    with mock.patch.object(GatewayServiceClient, "get_transport_class") as gtc:
+    with mock.patch.object(GatewayControlClient, "get_transport_class") as gtc:
         transport = transport_class(credentials=ga_credentials.AnonymousCredentials())
         client = client_class(transport=transport)
         gtc.assert_not_called()
 
     # Check that if channel is provided via str we will create a new one.
-    with mock.patch.object(GatewayServiceClient, "get_transport_class") as gtc:
+    with mock.patch.object(GatewayControlClient, "get_transport_class") as gtc:
         client = client_class(transport=transport_name)
         gtc.assert_called()
 
@@ -608,34 +626,36 @@ def test_gateway_service_client_client_options(
 @pytest.mark.parametrize(
     "client_class,transport_class,transport_name,use_client_cert_env",
     [
-        (GatewayServiceClient, transports.GatewayServiceGrpcTransport, "grpc", "true"),
+        (GatewayControlClient, transports.GatewayControlGrpcTransport, "grpc", "true"),
         (
-            GatewayServiceAsyncClient,
-            transports.GatewayServiceGrpcAsyncIOTransport,
+            GatewayControlAsyncClient,
+            transports.GatewayControlGrpcAsyncIOTransport,
             "grpc_asyncio",
             "true",
         ),
-        (GatewayServiceClient, transports.GatewayServiceGrpcTransport, "grpc", "false"),
+        (GatewayControlClient, transports.GatewayControlGrpcTransport, "grpc", "false"),
         (
-            GatewayServiceAsyncClient,
-            transports.GatewayServiceGrpcAsyncIOTransport,
+            GatewayControlAsyncClient,
+            transports.GatewayControlGrpcAsyncIOTransport,
             "grpc_asyncio",
             "false",
         ),
+        (GatewayControlClient, transports.GatewayControlRestTransport, "rest", "true"),
+        (GatewayControlClient, transports.GatewayControlRestTransport, "rest", "false"),
     ],
 )
 @mock.patch.object(
-    GatewayServiceClient,
+    GatewayControlClient,
     "_DEFAULT_ENDPOINT_TEMPLATE",
-    modify_default_endpoint_template(GatewayServiceClient),
+    modify_default_endpoint_template(GatewayControlClient),
 )
 @mock.patch.object(
-    GatewayServiceAsyncClient,
+    GatewayControlAsyncClient,
     "_DEFAULT_ENDPOINT_TEMPLATE",
-    modify_default_endpoint_template(GatewayServiceAsyncClient),
+    modify_default_endpoint_template(GatewayControlAsyncClient),
 )
 @mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "auto"})
-def test_gateway_service_client_mtls_env_auto(
+def test_gateway_control_client_mtls_env_auto(
     client_class, transport_class, transport_name, use_client_cert_env
 ):
     # This tests the endpoint autoswitch behavior. Endpoint is autoswitched to the default
@@ -738,19 +758,19 @@ def test_gateway_service_client_mtls_env_auto(
 
 
 @pytest.mark.parametrize(
-    "client_class", [GatewayServiceClient, GatewayServiceAsyncClient]
+    "client_class", [GatewayControlClient, GatewayControlAsyncClient]
 )
 @mock.patch.object(
-    GatewayServiceClient,
+    GatewayControlClient,
     "DEFAULT_ENDPOINT",
-    modify_default_endpoint(GatewayServiceClient),
+    modify_default_endpoint(GatewayControlClient),
 )
 @mock.patch.object(
-    GatewayServiceAsyncClient,
+    GatewayControlAsyncClient,
     "DEFAULT_ENDPOINT",
-    modify_default_endpoint(GatewayServiceAsyncClient),
+    modify_default_endpoint(GatewayControlAsyncClient),
 )
-def test_gateway_service_client_get_mtls_endpoint_and_cert_source(client_class):
+def test_gateway_control_client_get_mtls_endpoint_and_cert_source(client_class):
     mock_client_cert_source = mock.Mock()
 
     # Test the case GOOGLE_API_USE_CLIENT_CERTIFICATE is "true".
@@ -842,27 +862,27 @@ def test_gateway_service_client_get_mtls_endpoint_and_cert_source(client_class):
 
 
 @pytest.mark.parametrize(
-    "client_class", [GatewayServiceClient, GatewayServiceAsyncClient]
+    "client_class", [GatewayControlClient, GatewayControlAsyncClient]
 )
 @mock.patch.object(
-    GatewayServiceClient,
+    GatewayControlClient,
     "_DEFAULT_ENDPOINT_TEMPLATE",
-    modify_default_endpoint_template(GatewayServiceClient),
+    modify_default_endpoint_template(GatewayControlClient),
 )
 @mock.patch.object(
-    GatewayServiceAsyncClient,
+    GatewayControlAsyncClient,
     "_DEFAULT_ENDPOINT_TEMPLATE",
-    modify_default_endpoint_template(GatewayServiceAsyncClient),
+    modify_default_endpoint_template(GatewayControlAsyncClient),
 )
-def test_gateway_service_client_client_api_endpoint(client_class):
+def test_gateway_control_client_client_api_endpoint(client_class):
     mock_client_cert_source = client_cert_source_callback
     api_override = "foo.com"
-    default_universe = GatewayServiceClient._DEFAULT_UNIVERSE
-    default_endpoint = GatewayServiceClient._DEFAULT_ENDPOINT_TEMPLATE.format(
+    default_universe = GatewayControlClient._DEFAULT_UNIVERSE
+    default_endpoint = GatewayControlClient._DEFAULT_ENDPOINT_TEMPLATE.format(
         UNIVERSE_DOMAIN=default_universe
     )
     mock_universe = "bar.com"
-    mock_endpoint = GatewayServiceClient._DEFAULT_ENDPOINT_TEMPLATE.format(
+    mock_endpoint = GatewayControlClient._DEFAULT_ENDPOINT_TEMPLATE.format(
         UNIVERSE_DOMAIN=mock_universe
     )
 
@@ -930,15 +950,16 @@ def test_gateway_service_client_client_api_endpoint(client_class):
 @pytest.mark.parametrize(
     "client_class,transport_class,transport_name",
     [
-        (GatewayServiceClient, transports.GatewayServiceGrpcTransport, "grpc"),
+        (GatewayControlClient, transports.GatewayControlGrpcTransport, "grpc"),
         (
-            GatewayServiceAsyncClient,
-            transports.GatewayServiceGrpcAsyncIOTransport,
+            GatewayControlAsyncClient,
+            transports.GatewayControlGrpcAsyncIOTransport,
             "grpc_asyncio",
         ),
+        (GatewayControlClient, transports.GatewayControlRestTransport, "rest"),
     ],
 )
-def test_gateway_service_client_client_options_scopes(
+def test_gateway_control_client_client_options_scopes(
     client_class, transport_class, transport_name
 ):
     # Check the case scopes are provided.
@@ -967,20 +988,21 @@ def test_gateway_service_client_client_options_scopes(
     "client_class,transport_class,transport_name,grpc_helpers",
     [
         (
-            GatewayServiceClient,
-            transports.GatewayServiceGrpcTransport,
+            GatewayControlClient,
+            transports.GatewayControlGrpcTransport,
             "grpc",
             grpc_helpers,
         ),
         (
-            GatewayServiceAsyncClient,
-            transports.GatewayServiceGrpcAsyncIOTransport,
+            GatewayControlAsyncClient,
+            transports.GatewayControlGrpcAsyncIOTransport,
             "grpc_asyncio",
             grpc_helpers_async,
         ),
+        (GatewayControlClient, transports.GatewayControlRestTransport, "rest", None),
     ],
 )
-def test_gateway_service_client_client_options_credentials_file(
+def test_gateway_control_client_client_options_credentials_file(
     client_class, transport_class, transport_name, grpc_helpers
 ):
     # Check the case credentials file is provided.
@@ -1004,12 +1026,12 @@ def test_gateway_service_client_client_options_credentials_file(
         )
 
 
-def test_gateway_service_client_client_options_from_dict():
+def test_gateway_control_client_client_options_from_dict():
     with mock.patch(
-        "google.cloud.gkeconnect.gateway_v1beta1.services.gateway_service.transports.GatewayServiceGrpcTransport.__init__"
+        "google.cloud.gkeconnect.gateway_v1.services.gateway_control.transports.GatewayControlGrpcTransport.__init__"
     ) as grpc_transport:
         grpc_transport.return_value = None
-        client = GatewayServiceClient(
+        client = GatewayControlClient(
             client_options={"api_endpoint": "squid.clam.whelk"}
         )
         grpc_transport.assert_called_once_with(
@@ -1029,20 +1051,20 @@ def test_gateway_service_client_client_options_from_dict():
     "client_class,transport_class,transport_name,grpc_helpers",
     [
         (
-            GatewayServiceClient,
-            transports.GatewayServiceGrpcTransport,
+            GatewayControlClient,
+            transports.GatewayControlGrpcTransport,
             "grpc",
             grpc_helpers,
         ),
         (
-            GatewayServiceAsyncClient,
-            transports.GatewayServiceGrpcAsyncIOTransport,
+            GatewayControlAsyncClient,
+            transports.GatewayControlGrpcAsyncIOTransport,
             "grpc_asyncio",
             grpc_helpers_async,
         ),
     ],
 )
-def test_gateway_service_client_create_channel_credentials_file(
+def test_gateway_control_client_create_channel_credentials_file(
     client_class, transport_class, transport_name, grpc_helpers
 ):
     # Check the case credentials file is provided.
@@ -1097,12 +1119,12 @@ def test_gateway_service_client_create_channel_credentials_file(
 @pytest.mark.parametrize(
     "request_type",
     [
-        httpbody_pb2.HttpBody,
+        control.GenerateCredentialsRequest,
         dict,
     ],
 )
-def test_get_resource(request_type, transport: str = "grpc"):
-    client = GatewayServiceClient(
+def test_generate_credentials(request_type, transport: str = "grpc"):
+    client = GatewayControlClient(
         credentials=ga_credentials.AnonymousCredentials(),
         transport=transport,
     )
@@ -1112,49 +1134,53 @@ def test_get_resource(request_type, transport: str = "grpc"):
     request = request_type()
 
     # Mock the actual call within the gRPC stub, and fake the request.
-    with mock.patch.object(type(client.transport.get_resource), "__call__") as call:
+    with mock.patch.object(
+        type(client.transport.generate_credentials), "__call__"
+    ) as call:
         # Designate an appropriate return value for the call.
-        call.return_value = httpbody_pb2.HttpBody(
-            content_type="content_type_value",
-            data=b"data_blob",
+        call.return_value = control.GenerateCredentialsResponse(
+            kubeconfig=b"kubeconfig_blob",
+            endpoint="endpoint_value",
         )
-        response = client.get_resource(request)
+        response = client.generate_credentials(request)
 
         # Establish that the underlying gRPC stub method was called.
         assert len(call.mock_calls) == 1
         _, args, _ = call.mock_calls[0]
-        request = httpbody_pb2.HttpBody()
+        request = control.GenerateCredentialsRequest()
         assert args[0] == request
 
     # Establish that the response is the type that we expect.
-    assert isinstance(response, httpbody_pb2.HttpBody)
-    assert response.content_type == "content_type_value"
-    assert response.data == b"data_blob"
+    assert isinstance(response, control.GenerateCredentialsResponse)
+    assert response.kubeconfig == b"kubeconfig_blob"
+    assert response.endpoint == "endpoint_value"
 
 
-def test_get_resource_empty_call():
+def test_generate_credentials_empty_call():
     # This test is a coverage failsafe to make sure that totally empty calls,
     # i.e. request == None and no flattened fields passed, work.
-    client = GatewayServiceClient(
+    client = GatewayControlClient(
         credentials=ga_credentials.AnonymousCredentials(),
         transport="grpc",
     )
 
     # Mock the actual call within the gRPC stub, and fake the request.
-    with mock.patch.object(type(client.transport.get_resource), "__call__") as call:
+    with mock.patch.object(
+        type(client.transport.generate_credentials), "__call__"
+    ) as call:
         call.return_value.name = (
             "foo"  # operation_request.operation in compute client(s) expect a string.
         )
-        client.get_resource()
+        client.generate_credentials()
         call.assert_called()
         _, args, _ = call.mock_calls[0]
-        assert args[0] == httpbody_pb2.HttpBody()
+        assert args[0] == control.GenerateCredentialsRequest()
 
 
-def test_get_resource_non_empty_request_with_auto_populated_field():
+def test_generate_credentials_non_empty_request_with_auto_populated_field():
     # This test is a coverage failsafe to make sure that UUID4 fields are
     # automatically populated, according to AIP-4235, with non-empty requests.
-    client = GatewayServiceClient(
+    client = GatewayControlClient(
         credentials=ga_credentials.AnonymousCredentials(),
         transport="grpc",
     )
@@ -1162,28 +1188,34 @@ def test_get_resource_non_empty_request_with_auto_populated_field():
     # Populate all string fields in the request which are not UUID4
     # since we want to check that UUID4 are populated automatically
     # if they meet the requirements of AIP 4235.
-    request = httpbody_pb2.HttpBody(
-        content_type="content_type_value",
+    request = control.GenerateCredentialsRequest(
+        name="name_value",
+        version="version_value",
+        kubernetes_namespace="kubernetes_namespace_value",
     )
 
     # Mock the actual call within the gRPC stub, and fake the request.
-    with mock.patch.object(type(client.transport.get_resource), "__call__") as call:
+    with mock.patch.object(
+        type(client.transport.generate_credentials), "__call__"
+    ) as call:
         call.return_value.name = (
             "foo"  # operation_request.operation in compute client(s) expect a string.
         )
-        client.get_resource(request=request)
+        client.generate_credentials(request=request)
         call.assert_called()
         _, args, _ = call.mock_calls[0]
-        assert args[0] == httpbody_pb2.HttpBody(
-            content_type="content_type_value",
+        assert args[0] == control.GenerateCredentialsRequest(
+            name="name_value",
+            version="version_value",
+            kubernetes_namespace="kubernetes_namespace_value",
         )
 
 
-def test_get_resource_use_cached_wrapped_rpc():
+def test_generate_credentials_use_cached_wrapped_rpc():
     # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
     # instead of constructing them on each call
     with mock.patch("google.api_core.gapic_v1.method.wrap_method") as wrapper_fn:
-        client = GatewayServiceClient(
+        client = GatewayControlClient(
             credentials=ga_credentials.AnonymousCredentials(),
             transport="grpc",
         )
@@ -1193,21 +1225,25 @@ def test_get_resource_use_cached_wrapped_rpc():
         wrapper_fn.reset_mock()
 
         # Ensure method has been cached
-        assert client._transport.get_resource in client._transport._wrapped_methods
+        assert (
+            client._transport.generate_credentials in client._transport._wrapped_methods
+        )
 
         # Replace cached wrapped function with mock
         mock_rpc = mock.Mock()
         mock_rpc.return_value.name = (
             "foo"  # operation_request.operation in compute client(s) expect a string.
         )
-        client._transport._wrapped_methods[client._transport.get_resource] = mock_rpc
+        client._transport._wrapped_methods[
+            client._transport.generate_credentials
+        ] = mock_rpc
         request = {}
-        client.get_resource(request)
+        client.generate_credentials(request)
 
         # Establish that the underlying gRPC stub method was called.
         assert mock_rpc.call_count == 1
 
-        client.get_resource(request)
+        client.generate_credentials(request)
 
         # Establish that a new wrapper was not created for this call
         assert wrapper_fn.call_count == 0
@@ -1215,37 +1251,39 @@ def test_get_resource_use_cached_wrapped_rpc():
 
 
 @pytest.mark.asyncio
-async def test_get_resource_empty_call_async():
+async def test_generate_credentials_empty_call_async():
     # This test is a coverage failsafe to make sure that totally empty calls,
     # i.e. request == None and no flattened fields passed, work.
-    client = GatewayServiceAsyncClient(
+    client = GatewayControlAsyncClient(
         credentials=ga_credentials.AnonymousCredentials(),
         transport="grpc_asyncio",
     )
 
     # Mock the actual call within the gRPC stub, and fake the request.
-    with mock.patch.object(type(client.transport.get_resource), "__call__") as call:
+    with mock.patch.object(
+        type(client.transport.generate_credentials), "__call__"
+    ) as call:
         # Designate an appropriate return value for the call.
         call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
-            httpbody_pb2.HttpBody(
-                content_type="content_type_value",
-                data=b"data_blob",
+            control.GenerateCredentialsResponse(
+                kubeconfig=b"kubeconfig_blob",
+                endpoint="endpoint_value",
             )
         )
-        response = await client.get_resource()
+        response = await client.generate_credentials()
         call.assert_called()
         _, args, _ = call.mock_calls[0]
-        assert args[0] == httpbody_pb2.HttpBody()
+        assert args[0] == control.GenerateCredentialsRequest()
 
 
 @pytest.mark.asyncio
-async def test_get_resource_async_use_cached_wrapped_rpc(
+async def test_generate_credentials_async_use_cached_wrapped_rpc(
     transport: str = "grpc_asyncio",
 ):
     # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
     # instead of constructing them on each call
     with mock.patch("google.api_core.gapic_v1.method_async.wrap_method") as wrapper_fn:
-        client = GatewayServiceAsyncClient(
+        client = GatewayControlAsyncClient(
             credentials=ga_credentials.AnonymousCredentials(),
             transport=transport,
         )
@@ -1256,7 +1294,7 @@ async def test_get_resource_async_use_cached_wrapped_rpc(
 
         # Ensure method has been cached
         assert (
-            client._client._transport.get_resource
+            client._client._transport.generate_credentials
             in client._client._transport._wrapped_methods
         )
 
@@ -1264,16 +1302,16 @@ async def test_get_resource_async_use_cached_wrapped_rpc(
         mock_rpc = mock.AsyncMock()
         mock_rpc.return_value = mock.Mock()
         client._client._transport._wrapped_methods[
-            client._client._transport.get_resource
+            client._client._transport.generate_credentials
         ] = mock_rpc
 
         request = {}
-        await client.get_resource(request)
+        await client.generate_credentials(request)
 
         # Establish that the underlying gRPC stub method was called.
         assert mock_rpc.call_count == 1
 
-        await client.get_resource(request)
+        await client.generate_credentials(request)
 
         # Establish that a new wrapper was not created for this call
         assert wrapper_fn.call_count == 0
@@ -1281,10 +1319,10 @@ async def test_get_resource_async_use_cached_wrapped_rpc(
 
 
 @pytest.mark.asyncio
-async def test_get_resource_async(
-    transport: str = "grpc_asyncio", request_type=httpbody_pb2.HttpBody
+async def test_generate_credentials_async(
+    transport: str = "grpc_asyncio", request_type=control.GenerateCredentialsRequest
 ):
-    client = GatewayServiceAsyncClient(
+    client = GatewayControlAsyncClient(
         credentials=ga_credentials.AnonymousCredentials(),
         transport=transport,
     )
@@ -1294,145 +1332,149 @@ async def test_get_resource_async(
     request = request_type()
 
     # Mock the actual call within the gRPC stub, and fake the request.
-    with mock.patch.object(type(client.transport.get_resource), "__call__") as call:
+    with mock.patch.object(
+        type(client.transport.generate_credentials), "__call__"
+    ) as call:
         # Designate an appropriate return value for the call.
         call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
-            httpbody_pb2.HttpBody(
-                content_type="content_type_value",
-                data=b"data_blob",
+            control.GenerateCredentialsResponse(
+                kubeconfig=b"kubeconfig_blob",
+                endpoint="endpoint_value",
             )
         )
-        response = await client.get_resource(request)
+        response = await client.generate_credentials(request)
 
         # Establish that the underlying gRPC stub method was called.
         assert len(call.mock_calls)
         _, args, _ = call.mock_calls[0]
-        request = httpbody_pb2.HttpBody()
+        request = control.GenerateCredentialsRequest()
         assert args[0] == request
 
     # Establish that the response is the type that we expect.
-    assert isinstance(response, httpbody_pb2.HttpBody)
-    assert response.content_type == "content_type_value"
-    assert response.data == b"data_blob"
+    assert isinstance(response, control.GenerateCredentialsResponse)
+    assert response.kubeconfig == b"kubeconfig_blob"
+    assert response.endpoint == "endpoint_value"
 
 
 @pytest.mark.asyncio
-async def test_get_resource_async_from_dict():
-    await test_get_resource_async(request_type=dict)
+async def test_generate_credentials_async_from_dict():
+    await test_generate_credentials_async(request_type=dict)
 
 
-def test_get_resource_from_dict_foreign():
-    client = GatewayServiceClient(
+def test_generate_credentials_field_headers():
+    client = GatewayControlClient(
         credentials=ga_credentials.AnonymousCredentials(),
     )
-    # Mock the actual call within the gRPC stub, and fake the request.
-    with mock.patch.object(type(client.transport.get_resource), "__call__") as call:
-        # Designate an appropriate return value for the call.
-        call.return_value = httpbody_pb2.HttpBody()
-        response = client.get_resource(
-            request={
-                "content_type": "content_type_value",
-                "data": b"data_blob",
-                "extensions": [
-                    any_pb2.Any(type_url="type.googleapis.com/google.protobuf.Empty")
-                ],
-            }
-        )
-        call.assert_called()
 
+    # Any value that is part of the HTTP/1.1 URI should be sent as
+    # a field header. Set these to a non-empty value.
+    request = control.GenerateCredentialsRequest()
 
-@pytest.mark.parametrize(
-    "request_type",
-    [
-        httpbody_pb2.HttpBody,
-        dict,
-    ],
-)
-def test_post_resource(request_type, transport: str = "grpc"):
-    client = GatewayServiceClient(
-        credentials=ga_credentials.AnonymousCredentials(),
-        transport=transport,
-    )
-
-    # Everything is optional in proto3 as far as the runtime is concerned,
-    # and we are mocking out the actual API, so just send an empty request.
-    request = request_type()
+    request.name = "name_value"
 
     # Mock the actual call within the gRPC stub, and fake the request.
-    with mock.patch.object(type(client.transport.post_resource), "__call__") as call:
-        # Designate an appropriate return value for the call.
-        call.return_value = httpbody_pb2.HttpBody(
-            content_type="content_type_value",
-            data=b"data_blob",
-        )
-        response = client.post_resource(request)
+    with mock.patch.object(
+        type(client.transport.generate_credentials), "__call__"
+    ) as call:
+        call.return_value = control.GenerateCredentialsResponse()
+        client.generate_credentials(request)
 
         # Establish that the underlying gRPC stub method was called.
         assert len(call.mock_calls) == 1
         _, args, _ = call.mock_calls[0]
-        request = httpbody_pb2.HttpBody()
         assert args[0] == request
 
-    # Establish that the response is the type that we expect.
-    assert isinstance(response, httpbody_pb2.HttpBody)
-    assert response.content_type == "content_type_value"
-    assert response.data == b"data_blob"
+    # Establish that the field header was sent.
+    _, _, kw = call.mock_calls[0]
+    assert (
+        "x-goog-request-params",
+        "name=name_value",
+    ) in kw["metadata"]
 
 
-def test_post_resource_empty_call():
-    # This test is a coverage failsafe to make sure that totally empty calls,
-    # i.e. request == None and no flattened fields passed, work.
-    client = GatewayServiceClient(
+@pytest.mark.asyncio
+async def test_generate_credentials_field_headers_async():
+    client = GatewayControlAsyncClient(
         credentials=ga_credentials.AnonymousCredentials(),
-        transport="grpc",
     )
 
+    # Any value that is part of the HTTP/1.1 URI should be sent as
+    # a field header. Set these to a non-empty value.
+    request = control.GenerateCredentialsRequest()
+
+    request.name = "name_value"
+
     # Mock the actual call within the gRPC stub, and fake the request.
-    with mock.patch.object(type(client.transport.post_resource), "__call__") as call:
-        call.return_value.name = (
-            "foo"  # operation_request.operation in compute client(s) expect a string.
+    with mock.patch.object(
+        type(client.transport.generate_credentials), "__call__"
+    ) as call:
+        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
+            control.GenerateCredentialsResponse()
         )
-        client.post_resource()
-        call.assert_called()
+        await client.generate_credentials(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert len(call.mock_calls)
         _, args, _ = call.mock_calls[0]
-        assert args[0] == httpbody_pb2.HttpBody()
+        assert args[0] == request
 
+    # Establish that the field header was sent.
+    _, _, kw = call.mock_calls[0]
+    assert (
+        "x-goog-request-params",
+        "name=name_value",
+    ) in kw["metadata"]
 
-def test_post_resource_non_empty_request_with_auto_populated_field():
-    # This test is a coverage failsafe to make sure that UUID4 fields are
-    # automatically populated, according to AIP-4235, with non-empty requests.
-    client = GatewayServiceClient(
+
+@pytest.mark.parametrize(
+    "request_type",
+    [
+        control.GenerateCredentialsRequest,
+        dict,
+    ],
+)
+def test_generate_credentials_rest(request_type):
+    client = GatewayControlClient(
         credentials=ga_credentials.AnonymousCredentials(),
-        transport="grpc",
+        transport="rest",
     )
 
-    # Populate all string fields in the request which are not UUID4
-    # since we want to check that UUID4 are populated automatically
-    # if they meet the requirements of AIP 4235.
-    request = httpbody_pb2.HttpBody(
-        content_type="content_type_value",
-    )
+    # send a request that will satisfy transcoding
+    request_init = {"name": "projects/sample1/locations/sample2/memberships/sample3"}
+    request = request_type(**request_init)
 
-    # Mock the actual call within the gRPC stub, and fake the request.
-    with mock.patch.object(type(client.transport.post_resource), "__call__") as call:
-        call.return_value.name = (
-            "foo"  # operation_request.operation in compute client(s) expect a string.
-        )
-        client.post_resource(request=request)
-        call.assert_called()
-        _, args, _ = call.mock_calls[0]
-        assert args[0] == httpbody_pb2.HttpBody(
-            content_type="content_type_value",
+    # Mock the http request call within the method and fake a response.
+    with mock.patch.object(type(client.transport._session), "request") as req:
+        # Designate an appropriate value for the returned response.
+        return_value = control.GenerateCredentialsResponse(
+            kubeconfig=b"kubeconfig_blob",
+            endpoint="endpoint_value",
         )
 
+        # Wrap the value into a proper Response obj
+        response_value = Response()
+        response_value.status_code = 200
+        # Convert return value to protobuf type
+        return_value = control.GenerateCredentialsResponse.pb(return_value)
+        json_return_value = json_format.MessageToJson(return_value)
+
+        response_value._content = json_return_value.encode("UTF-8")
+        req.return_value = response_value
+        response = client.generate_credentials(request)
+
+    # Establish that the response is the type that we expect.
+    assert isinstance(response, control.GenerateCredentialsResponse)
+    assert response.kubeconfig == b"kubeconfig_blob"
+    assert response.endpoint == "endpoint_value"
+
 
-def test_post_resource_use_cached_wrapped_rpc():
+def test_generate_credentials_rest_use_cached_wrapped_rpc():
     # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
     # instead of constructing them on each call
     with mock.patch("google.api_core.gapic_v1.method.wrap_method") as wrapper_fn:
-        client = GatewayServiceClient(
+        client = GatewayControlClient(
             credentials=ga_credentials.AnonymousCredentials(),
-            transport="grpc",
+            transport="rest",
         )
 
         # Should wrap all calls on client creation
@@ -1440,965 +1482,291 @@ def test_post_resource_use_cached_wrapped_rpc():
         wrapper_fn.reset_mock()
 
         # Ensure method has been cached
-        assert client._transport.post_resource in client._transport._wrapped_methods
+        assert (
+            client._transport.generate_credentials in client._transport._wrapped_methods
+        )
 
         # Replace cached wrapped function with mock
         mock_rpc = mock.Mock()
         mock_rpc.return_value.name = (
             "foo"  # operation_request.operation in compute client(s) expect a string.
         )
-        client._transport._wrapped_methods[client._transport.post_resource] = mock_rpc
+        client._transport._wrapped_methods[
+            client._transport.generate_credentials
+        ] = mock_rpc
+
         request = {}
-        client.post_resource(request)
+        client.generate_credentials(request)
 
         # Establish that the underlying gRPC stub method was called.
         assert mock_rpc.call_count == 1
 
-        client.post_resource(request)
+        client.generate_credentials(request)
 
         # Establish that a new wrapper was not created for this call
         assert wrapper_fn.call_count == 0
         assert mock_rpc.call_count == 2
 
 
-@pytest.mark.asyncio
-async def test_post_resource_empty_call_async():
-    # This test is a coverage failsafe to make sure that totally empty calls,
-    # i.e. request == None and no flattened fields passed, work.
-    client = GatewayServiceAsyncClient(
-        credentials=ga_credentials.AnonymousCredentials(),
-        transport="grpc_asyncio",
+def test_generate_credentials_rest_required_fields(
+    request_type=control.GenerateCredentialsRequest,
+):
+    transport_class = transports.GatewayControlRestTransport
+
+    request_init = {}
+    request_init["name"] = ""
+    request = request_type(**request_init)
+    pb_request = request_type.pb(request)
+    jsonified_request = json.loads(
+        json_format.MessageToJson(pb_request, use_integers_for_enums=False)
     )
 
-    # Mock the actual call within the gRPC stub, and fake the request.
-    with mock.patch.object(type(client.transport.post_resource), "__call__") as call:
-        # Designate an appropriate return value for the call.
-        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
-            httpbody_pb2.HttpBody(
-                content_type="content_type_value",
-                data=b"data_blob",
-            )
-        )
-        response = await client.post_resource()
-        call.assert_called()
-        _, args, _ = call.mock_calls[0]
-        assert args[0] == httpbody_pb2.HttpBody()
+    # verify fields with default values are dropped
 
+    unset_fields = transport_class(
+        credentials=ga_credentials.AnonymousCredentials()
+    ).generate_credentials._get_unset_required_fields(jsonified_request)
+    jsonified_request.update(unset_fields)
 
-@pytest.mark.asyncio
-async def test_post_resource_async_use_cached_wrapped_rpc(
-    transport: str = "grpc_asyncio",
-):
-    # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
-    # instead of constructing them on each call
-    with mock.patch("google.api_core.gapic_v1.method_async.wrap_method") as wrapper_fn:
-        client = GatewayServiceAsyncClient(
-            credentials=ga_credentials.AnonymousCredentials(),
-            transport=transport,
-        )
+    # verify required fields with default values are now present
 
-        # Should wrap all calls on client creation
-        assert wrapper_fn.call_count > 0
-        wrapper_fn.reset_mock()
+    jsonified_request["name"] = "name_value"
 
-        # Ensure method has been cached
-        assert (
-            client._client._transport.post_resource
-            in client._client._transport._wrapped_methods
+    unset_fields = transport_class(
+        credentials=ga_credentials.AnonymousCredentials()
+    ).generate_credentials._get_unset_required_fields(jsonified_request)
+    # Check that path parameters and body parameters are not mixing in.
+    assert not set(unset_fields) - set(
+        (
+            "force_use_agent",
+            "kubernetes_namespace",
+            "operating_system",
+            "version",
         )
+    )
+    jsonified_request.update(unset_fields)
 
-        # Replace cached wrapped function with mock
-        mock_rpc = mock.AsyncMock()
-        mock_rpc.return_value = mock.Mock()
-        client._client._transport._wrapped_methods[
-            client._client._transport.post_resource
-        ] = mock_rpc
+    # verify required fields with non-default values are left alone
+    assert "name" in jsonified_request
+    assert jsonified_request["name"] == "name_value"
 
-        request = {}
-        await client.post_resource(request)
+    client = GatewayControlClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="rest",
+    )
+    request = request_type(**request_init)
+
+    # Designate an appropriate value for the returned response.
+    return_value = control.GenerateCredentialsResponse()
+    # Mock the http request call within the method and fake a response.
+    with mock.patch.object(Session, "request") as req:
+        # We need to mock transcode() because providing default values
+        # for required fields will fail the real version if the http_options
+        # expect actual values for those fields.
+        with mock.patch.object(path_template, "transcode") as transcode:
+            # A uri without fields and an empty body will force all the
+            # request fields to show up in the query_params.
+            pb_request = request_type.pb(request)
+            transcode_result = {
+                "uri": "v1/sample_method",
+                "method": "get",
+                "query_params": pb_request,
+            }
+            transcode.return_value = transcode_result
 
-        # Establish that the underlying gRPC stub method was called.
-        assert mock_rpc.call_count == 1
+            response_value = Response()
+            response_value.status_code = 200
 
-        await client.post_resource(request)
+            # Convert return value to protobuf type
+            return_value = control.GenerateCredentialsResponse.pb(return_value)
+            json_return_value = json_format.MessageToJson(return_value)
 
-        # Establish that a new wrapper was not created for this call
-        assert wrapper_fn.call_count == 0
-        assert mock_rpc.call_count == 2
+            response_value._content = json_return_value.encode("UTF-8")
+            req.return_value = response_value
 
+            response = client.generate_credentials(request)
 
-@pytest.mark.asyncio
-async def test_post_resource_async(
-    transport: str = "grpc_asyncio", request_type=httpbody_pb2.HttpBody
-):
-    client = GatewayServiceAsyncClient(
-        credentials=ga_credentials.AnonymousCredentials(),
-        transport=transport,
-    )
+            expected_params = [("$alt", "json;enum-encoding=int")]
+            actual_params = req.call_args.kwargs["params"]
+            assert expected_params == actual_params
 
-    # Everything is optional in proto3 as far as the runtime is concerned,
-    # and we are mocking out the actual API, so just send an empty request.
-    request = request_type()
 
-    # Mock the actual call within the gRPC stub, and fake the request.
-    with mock.patch.object(type(client.transport.post_resource), "__call__") as call:
-        # Designate an appropriate return value for the call.
-        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
-            httpbody_pb2.HttpBody(
-                content_type="content_type_value",
-                data=b"data_blob",
+def test_generate_credentials_rest_unset_required_fields():
+    transport = transports.GatewayControlRestTransport(
+        credentials=ga_credentials.AnonymousCredentials
+    )
+
+    unset_fields = transport.generate_credentials._get_unset_required_fields({})
+    assert set(unset_fields) == (
+        set(
+            (
+                "forceUseAgent",
+                "kubernetesNamespace",
+                "operatingSystem",
+                "version",
             )
         )
-        response = await client.post_resource(request)
-
-        # Establish that the underlying gRPC stub method was called.
-        assert len(call.mock_calls)
-        _, args, _ = call.mock_calls[0]
-        request = httpbody_pb2.HttpBody()
-        assert args[0] == request
-
-    # Establish that the response is the type that we expect.
-    assert isinstance(response, httpbody_pb2.HttpBody)
-    assert response.content_type == "content_type_value"
-    assert response.data == b"data_blob"
-
-
-@pytest.mark.asyncio
-async def test_post_resource_async_from_dict():
-    await test_post_resource_async(request_type=dict)
+        & set(("name",))
+    )
 
 
-def test_post_resource_from_dict_foreign():
-    client = GatewayServiceClient(
+@pytest.mark.parametrize("null_interceptor", [True, False])
+def test_generate_credentials_rest_interceptors(null_interceptor):
+    transport = transports.GatewayControlRestTransport(
         credentials=ga_credentials.AnonymousCredentials(),
+        interceptor=None
+        if null_interceptor
+        else transports.GatewayControlRestInterceptor(),
     )
-    # Mock the actual call within the gRPC stub, and fake the request.
-    with mock.patch.object(type(client.transport.post_resource), "__call__") as call:
-        # Designate an appropriate return value for the call.
-        call.return_value = httpbody_pb2.HttpBody()
-        response = client.post_resource(
-            request={
-                "content_type": "content_type_value",
-                "data": b"data_blob",
-                "extensions": [
-                    any_pb2.Any(type_url="type.googleapis.com/google.protobuf.Empty")
-                ],
-            }
+    client = GatewayControlClient(transport=transport)
+    with mock.patch.object(
+        type(client.transport._session), "request"
+    ) as req, mock.patch.object(
+        path_template, "transcode"
+    ) as transcode, mock.patch.object(
+        transports.GatewayControlRestInterceptor, "post_generate_credentials"
+    ) as post, mock.patch.object(
+        transports.GatewayControlRestInterceptor, "pre_generate_credentials"
+    ) as pre:
+        pre.assert_not_called()
+        post.assert_not_called()
+        pb_message = control.GenerateCredentialsRequest.pb(
+            control.GenerateCredentialsRequest()
+        )
+        transcode.return_value = {
+            "method": "post",
+            "uri": "my_uri",
+            "body": pb_message,
+            "query_params": pb_message,
+        }
+
+        req.return_value = Response()
+        req.return_value.status_code = 200
+        req.return_value.request = PreparedRequest()
+        req.return_value._content = control.GenerateCredentialsResponse.to_json(
+            control.GenerateCredentialsResponse()
+        )
+
+        request = control.GenerateCredentialsRequest()
+        metadata = [
+            ("key", "val"),
+            ("cephalopod", "squid"),
+        ]
+        pre.return_value = request, metadata
+        post.return_value = control.GenerateCredentialsResponse()
+
+        client.generate_credentials(
+            request,
+            metadata=[
+                ("key", "val"),
+                ("cephalopod", "squid"),
+            ],
         )
-        call.assert_called()
 
+        pre.assert_called_once()
+        post.assert_called_once()
 
-@pytest.mark.parametrize(
-    "request_type",
-    [
-        httpbody_pb2.HttpBody,
-        dict,
-    ],
-)
-def test_delete_resource(request_type, transport: str = "grpc"):
-    client = GatewayServiceClient(
+
+def test_generate_credentials_rest_bad_request(
+    transport: str = "rest", request_type=control.GenerateCredentialsRequest
+):
+    client = GatewayControlClient(
         credentials=ga_credentials.AnonymousCredentials(),
         transport=transport,
     )
 
-    # Everything is optional in proto3 as far as the runtime is concerned,
-    # and we are mocking out the actual API, so just send an empty request.
-    request = request_type()
+    # send a request that will satisfy transcoding
+    request_init = {"name": "projects/sample1/locations/sample2/memberships/sample3"}
+    request = request_type(**request_init)
 
-    # Mock the actual call within the gRPC stub, and fake the request.
-    with mock.patch.object(type(client.transport.delete_resource), "__call__") as call:
-        # Designate an appropriate return value for the call.
-        call.return_value = httpbody_pb2.HttpBody(
-            content_type="content_type_value",
-            data=b"data_blob",
-        )
-        response = client.delete_resource(request)
+    # Mock the http request call within the method and fake a BadRequest error.
+    with mock.patch.object(Session, "request") as req, pytest.raises(
+        core_exceptions.BadRequest
+    ):
+        # Wrap the value into a proper Response obj
+        response_value = Response()
+        response_value.status_code = 400
+        response_value.request = Request()
+        req.return_value = response_value
+        client.generate_credentials(request)
 
-        # Establish that the underlying gRPC stub method was called.
-        assert len(call.mock_calls) == 1
-        _, args, _ = call.mock_calls[0]
-        request = httpbody_pb2.HttpBody()
-        assert args[0] == request
 
-    # Establish that the response is the type that we expect.
-    assert isinstance(response, httpbody_pb2.HttpBody)
-    assert response.content_type == "content_type_value"
-    assert response.data == b"data_blob"
+def test_generate_credentials_rest_error():
+    client = GatewayControlClient(
+        credentials=ga_credentials.AnonymousCredentials(), transport="rest"
+    )
 
 
-def test_delete_resource_empty_call():
-    # This test is a coverage failsafe to make sure that totally empty calls,
-    # i.e. request == None and no flattened fields passed, work.
-    client = GatewayServiceClient(
+def test_credentials_transport_error():
+    # It is an error to provide credentials and a transport instance.
+    transport = transports.GatewayControlGrpcTransport(
         credentials=ga_credentials.AnonymousCredentials(),
-        transport="grpc",
     )
-
-    # Mock the actual call within the gRPC stub, and fake the request.
-    with mock.patch.object(type(client.transport.delete_resource), "__call__") as call:
-        call.return_value.name = (
-            "foo"  # operation_request.operation in compute client(s) expect a string.
+    with pytest.raises(ValueError):
+        client = GatewayControlClient(
+            credentials=ga_credentials.AnonymousCredentials(),
+            transport=transport,
         )
-        client.delete_resource()
-        call.assert_called()
-        _, args, _ = call.mock_calls[0]
-        assert args[0] == httpbody_pb2.HttpBody()
 
-
-def test_delete_resource_non_empty_request_with_auto_populated_field():
-    # This test is a coverage failsafe to make sure that UUID4 fields are
-    # automatically populated, according to AIP-4235, with non-empty requests.
-    client = GatewayServiceClient(
+    # It is an error to provide a credentials file and a transport instance.
+    transport = transports.GatewayControlGrpcTransport(
         credentials=ga_credentials.AnonymousCredentials(),
-        transport="grpc",
     )
+    with pytest.raises(ValueError):
+        client = GatewayControlClient(
+            client_options={"credentials_file": "credentials.json"},
+            transport=transport,
+        )
 
-    # Populate all string fields in the request which are not UUID4
-    # since we want to check that UUID4 are populated automatically
-    # if they meet the requirements of AIP 4235.
-    request = httpbody_pb2.HttpBody(
-        content_type="content_type_value",
+    # It is an error to provide an api_key and a transport instance.
+    transport = transports.GatewayControlGrpcTransport(
+        credentials=ga_credentials.AnonymousCredentials(),
     )
-
-    # Mock the actual call within the gRPC stub, and fake the request.
-    with mock.patch.object(type(client.transport.delete_resource), "__call__") as call:
-        call.return_value.name = (
-            "foo"  # operation_request.operation in compute client(s) expect a string.
-        )
-        client.delete_resource(request=request)
-        call.assert_called()
-        _, args, _ = call.mock_calls[0]
-        assert args[0] == httpbody_pb2.HttpBody(
-            content_type="content_type_value",
+    options = client_options.ClientOptions()
+    options.api_key = "api_key"
+    with pytest.raises(ValueError):
+        client = GatewayControlClient(
+            client_options=options,
+            transport=transport,
         )
 
-
-def test_delete_resource_use_cached_wrapped_rpc():
-    # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
-    # instead of constructing them on each call
-    with mock.patch("google.api_core.gapic_v1.method.wrap_method") as wrapper_fn:
-        client = GatewayServiceClient(
-            credentials=ga_credentials.AnonymousCredentials(),
-            transport="grpc",
+    # It is an error to provide an api_key and a credential.
+    options = client_options.ClientOptions()
+    options.api_key = "api_key"
+    with pytest.raises(ValueError):
+        client = GatewayControlClient(
+            client_options=options, credentials=ga_credentials.AnonymousCredentials()
         )
 
-        # Should wrap all calls on client creation
-        assert wrapper_fn.call_count > 0
-        wrapper_fn.reset_mock()
-
-        # Ensure method has been cached
-        assert client._transport.delete_resource in client._transport._wrapped_methods
-
-        # Replace cached wrapped function with mock
-        mock_rpc = mock.Mock()
-        mock_rpc.return_value.name = (
-            "foo"  # operation_request.operation in compute client(s) expect a string.
+    # It is an error to provide scopes and a transport instance.
+    transport = transports.GatewayControlGrpcTransport(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+    with pytest.raises(ValueError):
+        client = GatewayControlClient(
+            client_options={"scopes": ["1", "2"]},
+            transport=transport,
         )
-        client._transport._wrapped_methods[client._transport.delete_resource] = mock_rpc
-        request = {}
-        client.delete_resource(request)
 
-        # Establish that the underlying gRPC stub method was called.
-        assert mock_rpc.call_count == 1
 
-        client.delete_resource(request)
-
-        # Establish that a new wrapper was not created for this call
-        assert wrapper_fn.call_count == 0
-        assert mock_rpc.call_count == 2
-
-
-@pytest.mark.asyncio
-async def test_delete_resource_empty_call_async():
-    # This test is a coverage failsafe to make sure that totally empty calls,
-    # i.e. request == None and no flattened fields passed, work.
-    client = GatewayServiceAsyncClient(
-        credentials=ga_credentials.AnonymousCredentials(),
-        transport="grpc_asyncio",
-    )
-
-    # Mock the actual call within the gRPC stub, and fake the request.
-    with mock.patch.object(type(client.transport.delete_resource), "__call__") as call:
-        # Designate an appropriate return value for the call.
-        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
-            httpbody_pb2.HttpBody(
-                content_type="content_type_value",
-                data=b"data_blob",
-            )
-        )
-        response = await client.delete_resource()
-        call.assert_called()
-        _, args, _ = call.mock_calls[0]
-        assert args[0] == httpbody_pb2.HttpBody()
-
-
-@pytest.mark.asyncio
-async def test_delete_resource_async_use_cached_wrapped_rpc(
-    transport: str = "grpc_asyncio",
-):
-    # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
-    # instead of constructing them on each call
-    with mock.patch("google.api_core.gapic_v1.method_async.wrap_method") as wrapper_fn:
-        client = GatewayServiceAsyncClient(
-            credentials=ga_credentials.AnonymousCredentials(),
-            transport=transport,
-        )
-
-        # Should wrap all calls on client creation
-        assert wrapper_fn.call_count > 0
-        wrapper_fn.reset_mock()
-
-        # Ensure method has been cached
-        assert (
-            client._client._transport.delete_resource
-            in client._client._transport._wrapped_methods
-        )
-
-        # Replace cached wrapped function with mock
-        mock_rpc = mock.AsyncMock()
-        mock_rpc.return_value = mock.Mock()
-        client._client._transport._wrapped_methods[
-            client._client._transport.delete_resource
-        ] = mock_rpc
-
-        request = {}
-        await client.delete_resource(request)
-
-        # Establish that the underlying gRPC stub method was called.
-        assert mock_rpc.call_count == 1
-
-        await client.delete_resource(request)
-
-        # Establish that a new wrapper was not created for this call
-        assert wrapper_fn.call_count == 0
-        assert mock_rpc.call_count == 2
-
-
-@pytest.mark.asyncio
-async def test_delete_resource_async(
-    transport: str = "grpc_asyncio", request_type=httpbody_pb2.HttpBody
-):
-    client = GatewayServiceAsyncClient(
-        credentials=ga_credentials.AnonymousCredentials(),
-        transport=transport,
-    )
-
-    # Everything is optional in proto3 as far as the runtime is concerned,
-    # and we are mocking out the actual API, so just send an empty request.
-    request = request_type()
-
-    # Mock the actual call within the gRPC stub, and fake the request.
-    with mock.patch.object(type(client.transport.delete_resource), "__call__") as call:
-        # Designate an appropriate return value for the call.
-        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
-            httpbody_pb2.HttpBody(
-                content_type="content_type_value",
-                data=b"data_blob",
-            )
-        )
-        response = await client.delete_resource(request)
-
-        # Establish that the underlying gRPC stub method was called.
-        assert len(call.mock_calls)
-        _, args, _ = call.mock_calls[0]
-        request = httpbody_pb2.HttpBody()
-        assert args[0] == request
-
-    # Establish that the response is the type that we expect.
-    assert isinstance(response, httpbody_pb2.HttpBody)
-    assert response.content_type == "content_type_value"
-    assert response.data == b"data_blob"
-
-
-@pytest.mark.asyncio
-async def test_delete_resource_async_from_dict():
-    await test_delete_resource_async(request_type=dict)
-
-
-def test_delete_resource_from_dict_foreign():
-    client = GatewayServiceClient(
-        credentials=ga_credentials.AnonymousCredentials(),
-    )
-    # Mock the actual call within the gRPC stub, and fake the request.
-    with mock.patch.object(type(client.transport.delete_resource), "__call__") as call:
-        # Designate an appropriate return value for the call.
-        call.return_value = httpbody_pb2.HttpBody()
-        response = client.delete_resource(
-            request={
-                "content_type": "content_type_value",
-                "data": b"data_blob",
-                "extensions": [
-                    any_pb2.Any(type_url="type.googleapis.com/google.protobuf.Empty")
-                ],
-            }
-        )
-        call.assert_called()
-
-
-@pytest.mark.parametrize(
-    "request_type",
-    [
-        httpbody_pb2.HttpBody,
-        dict,
-    ],
-)
-def test_put_resource(request_type, transport: str = "grpc"):
-    client = GatewayServiceClient(
-        credentials=ga_credentials.AnonymousCredentials(),
-        transport=transport,
-    )
-
-    # Everything is optional in proto3 as far as the runtime is concerned,
-    # and we are mocking out the actual API, so just send an empty request.
-    request = request_type()
-
-    # Mock the actual call within the gRPC stub, and fake the request.
-    with mock.patch.object(type(client.transport.put_resource), "__call__") as call:
-        # Designate an appropriate return value for the call.
-        call.return_value = httpbody_pb2.HttpBody(
-            content_type="content_type_value",
-            data=b"data_blob",
-        )
-        response = client.put_resource(request)
-
-        # Establish that the underlying gRPC stub method was called.
-        assert len(call.mock_calls) == 1
-        _, args, _ = call.mock_calls[0]
-        request = httpbody_pb2.HttpBody()
-        assert args[0] == request
-
-    # Establish that the response is the type that we expect.
-    assert isinstance(response, httpbody_pb2.HttpBody)
-    assert response.content_type == "content_type_value"
-    assert response.data == b"data_blob"
-
-
-def test_put_resource_empty_call():
-    # This test is a coverage failsafe to make sure that totally empty calls,
-    # i.e. request == None and no flattened fields passed, work.
-    client = GatewayServiceClient(
-        credentials=ga_credentials.AnonymousCredentials(),
-        transport="grpc",
-    )
-
-    # Mock the actual call within the gRPC stub, and fake the request.
-    with mock.patch.object(type(client.transport.put_resource), "__call__") as call:
-        call.return_value.name = (
-            "foo"  # operation_request.operation in compute client(s) expect a string.
-        )
-        client.put_resource()
-        call.assert_called()
-        _, args, _ = call.mock_calls[0]
-        assert args[0] == httpbody_pb2.HttpBody()
-
-
-def test_put_resource_non_empty_request_with_auto_populated_field():
-    # This test is a coverage failsafe to make sure that UUID4 fields are
-    # automatically populated, according to AIP-4235, with non-empty requests.
-    client = GatewayServiceClient(
-        credentials=ga_credentials.AnonymousCredentials(),
-        transport="grpc",
-    )
-
-    # Populate all string fields in the request which are not UUID4
-    # since we want to check that UUID4 are populated automatically
-    # if they meet the requirements of AIP 4235.
-    request = httpbody_pb2.HttpBody(
-        content_type="content_type_value",
-    )
-
-    # Mock the actual call within the gRPC stub, and fake the request.
-    with mock.patch.object(type(client.transport.put_resource), "__call__") as call:
-        call.return_value.name = (
-            "foo"  # operation_request.operation in compute client(s) expect a string.
-        )
-        client.put_resource(request=request)
-        call.assert_called()
-        _, args, _ = call.mock_calls[0]
-        assert args[0] == httpbody_pb2.HttpBody(
-            content_type="content_type_value",
-        )
-
-
-def test_put_resource_use_cached_wrapped_rpc():
-    # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
-    # instead of constructing them on each call
-    with mock.patch("google.api_core.gapic_v1.method.wrap_method") as wrapper_fn:
-        client = GatewayServiceClient(
-            credentials=ga_credentials.AnonymousCredentials(),
-            transport="grpc",
-        )
-
-        # Should wrap all calls on client creation
-        assert wrapper_fn.call_count > 0
-        wrapper_fn.reset_mock()
-
-        # Ensure method has been cached
-        assert client._transport.put_resource in client._transport._wrapped_methods
-
-        # Replace cached wrapped function with mock
-        mock_rpc = mock.Mock()
-        mock_rpc.return_value.name = (
-            "foo"  # operation_request.operation in compute client(s) expect a string.
-        )
-        client._transport._wrapped_methods[client._transport.put_resource] = mock_rpc
-        request = {}
-        client.put_resource(request)
-
-        # Establish that the underlying gRPC stub method was called.
-        assert mock_rpc.call_count == 1
-
-        client.put_resource(request)
-
-        # Establish that a new wrapper was not created for this call
-        assert wrapper_fn.call_count == 0
-        assert mock_rpc.call_count == 2
-
-
-@pytest.mark.asyncio
-async def test_put_resource_empty_call_async():
-    # This test is a coverage failsafe to make sure that totally empty calls,
-    # i.e. request == None and no flattened fields passed, work.
-    client = GatewayServiceAsyncClient(
-        credentials=ga_credentials.AnonymousCredentials(),
-        transport="grpc_asyncio",
-    )
-
-    # Mock the actual call within the gRPC stub, and fake the request.
-    with mock.patch.object(type(client.transport.put_resource), "__call__") as call:
-        # Designate an appropriate return value for the call.
-        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
-            httpbody_pb2.HttpBody(
-                content_type="content_type_value",
-                data=b"data_blob",
-            )
-        )
-        response = await client.put_resource()
-        call.assert_called()
-        _, args, _ = call.mock_calls[0]
-        assert args[0] == httpbody_pb2.HttpBody()
-
-
-@pytest.mark.asyncio
-async def test_put_resource_async_use_cached_wrapped_rpc(
-    transport: str = "grpc_asyncio",
-):
-    # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
-    # instead of constructing them on each call
-    with mock.patch("google.api_core.gapic_v1.method_async.wrap_method") as wrapper_fn:
-        client = GatewayServiceAsyncClient(
-            credentials=ga_credentials.AnonymousCredentials(),
-            transport=transport,
-        )
-
-        # Should wrap all calls on client creation
-        assert wrapper_fn.call_count > 0
-        wrapper_fn.reset_mock()
-
-        # Ensure method has been cached
-        assert (
-            client._client._transport.put_resource
-            in client._client._transport._wrapped_methods
-        )
-
-        # Replace cached wrapped function with mock
-        mock_rpc = mock.AsyncMock()
-        mock_rpc.return_value = mock.Mock()
-        client._client._transport._wrapped_methods[
-            client._client._transport.put_resource
-        ] = mock_rpc
-
-        request = {}
-        await client.put_resource(request)
-
-        # Establish that the underlying gRPC stub method was called.
-        assert mock_rpc.call_count == 1
-
-        await client.put_resource(request)
-
-        # Establish that a new wrapper was not created for this call
-        assert wrapper_fn.call_count == 0
-        assert mock_rpc.call_count == 2
-
-
-@pytest.mark.asyncio
-async def test_put_resource_async(
-    transport: str = "grpc_asyncio", request_type=httpbody_pb2.HttpBody
-):
-    client = GatewayServiceAsyncClient(
-        credentials=ga_credentials.AnonymousCredentials(),
-        transport=transport,
-    )
-
-    # Everything is optional in proto3 as far as the runtime is concerned,
-    # and we are mocking out the actual API, so just send an empty request.
-    request = request_type()
-
-    # Mock the actual call within the gRPC stub, and fake the request.
-    with mock.patch.object(type(client.transport.put_resource), "__call__") as call:
-        # Designate an appropriate return value for the call.
-        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
-            httpbody_pb2.HttpBody(
-                content_type="content_type_value",
-                data=b"data_blob",
-            )
-        )
-        response = await client.put_resource(request)
-
-        # Establish that the underlying gRPC stub method was called.
-        assert len(call.mock_calls)
-        _, args, _ = call.mock_calls[0]
-        request = httpbody_pb2.HttpBody()
-        assert args[0] == request
-
-    # Establish that the response is the type that we expect.
-    assert isinstance(response, httpbody_pb2.HttpBody)
-    assert response.content_type == "content_type_value"
-    assert response.data == b"data_blob"
-
-
-@pytest.mark.asyncio
-async def test_put_resource_async_from_dict():
-    await test_put_resource_async(request_type=dict)
-
-
-def test_put_resource_from_dict_foreign():
-    client = GatewayServiceClient(
-        credentials=ga_credentials.AnonymousCredentials(),
-    )
-    # Mock the actual call within the gRPC stub, and fake the request.
-    with mock.patch.object(type(client.transport.put_resource), "__call__") as call:
-        # Designate an appropriate return value for the call.
-        call.return_value = httpbody_pb2.HttpBody()
-        response = client.put_resource(
-            request={
-                "content_type": "content_type_value",
-                "data": b"data_blob",
-                "extensions": [
-                    any_pb2.Any(type_url="type.googleapis.com/google.protobuf.Empty")
-                ],
-            }
-        )
-        call.assert_called()
-
-
-@pytest.mark.parametrize(
-    "request_type",
-    [
-        httpbody_pb2.HttpBody,
-        dict,
-    ],
-)
-def test_patch_resource(request_type, transport: str = "grpc"):
-    client = GatewayServiceClient(
-        credentials=ga_credentials.AnonymousCredentials(),
-        transport=transport,
-    )
-
-    # Everything is optional in proto3 as far as the runtime is concerned,
-    # and we are mocking out the actual API, so just send an empty request.
-    request = request_type()
-
-    # Mock the actual call within the gRPC stub, and fake the request.
-    with mock.patch.object(type(client.transport.patch_resource), "__call__") as call:
-        # Designate an appropriate return value for the call.
-        call.return_value = httpbody_pb2.HttpBody(
-            content_type="content_type_value",
-            data=b"data_blob",
-        )
-        response = client.patch_resource(request)
-
-        # Establish that the underlying gRPC stub method was called.
-        assert len(call.mock_calls) == 1
-        _, args, _ = call.mock_calls[0]
-        request = httpbody_pb2.HttpBody()
-        assert args[0] == request
-
-    # Establish that the response is the type that we expect.
-    assert isinstance(response, httpbody_pb2.HttpBody)
-    assert response.content_type == "content_type_value"
-    assert response.data == b"data_blob"
-
-
-def test_patch_resource_empty_call():
-    # This test is a coverage failsafe to make sure that totally empty calls,
-    # i.e. request == None and no flattened fields passed, work.
-    client = GatewayServiceClient(
-        credentials=ga_credentials.AnonymousCredentials(),
-        transport="grpc",
-    )
-
-    # Mock the actual call within the gRPC stub, and fake the request.
-    with mock.patch.object(type(client.transport.patch_resource), "__call__") as call:
-        call.return_value.name = (
-            "foo"  # operation_request.operation in compute client(s) expect a string.
-        )
-        client.patch_resource()
-        call.assert_called()
-        _, args, _ = call.mock_calls[0]
-        assert args[0] == httpbody_pb2.HttpBody()
-
-
-def test_patch_resource_non_empty_request_with_auto_populated_field():
-    # This test is a coverage failsafe to make sure that UUID4 fields are
-    # automatically populated, according to AIP-4235, with non-empty requests.
-    client = GatewayServiceClient(
-        credentials=ga_credentials.AnonymousCredentials(),
-        transport="grpc",
-    )
-
-    # Populate all string fields in the request which are not UUID4
-    # since we want to check that UUID4 are populated automatically
-    # if they meet the requirements of AIP 4235.
-    request = httpbody_pb2.HttpBody(
-        content_type="content_type_value",
-    )
-
-    # Mock the actual call within the gRPC stub, and fake the request.
-    with mock.patch.object(type(client.transport.patch_resource), "__call__") as call:
-        call.return_value.name = (
-            "foo"  # operation_request.operation in compute client(s) expect a string.
-        )
-        client.patch_resource(request=request)
-        call.assert_called()
-        _, args, _ = call.mock_calls[0]
-        assert args[0] == httpbody_pb2.HttpBody(
-            content_type="content_type_value",
-        )
-
-
-def test_patch_resource_use_cached_wrapped_rpc():
-    # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
-    # instead of constructing them on each call
-    with mock.patch("google.api_core.gapic_v1.method.wrap_method") as wrapper_fn:
-        client = GatewayServiceClient(
-            credentials=ga_credentials.AnonymousCredentials(),
-            transport="grpc",
-        )
-
-        # Should wrap all calls on client creation
-        assert wrapper_fn.call_count > 0
-        wrapper_fn.reset_mock()
-
-        # Ensure method has been cached
-        assert client._transport.patch_resource in client._transport._wrapped_methods
-
-        # Replace cached wrapped function with mock
-        mock_rpc = mock.Mock()
-        mock_rpc.return_value.name = (
-            "foo"  # operation_request.operation in compute client(s) expect a string.
-        )
-        client._transport._wrapped_methods[client._transport.patch_resource] = mock_rpc
-        request = {}
-        client.patch_resource(request)
-
-        # Establish that the underlying gRPC stub method was called.
-        assert mock_rpc.call_count == 1
-
-        client.patch_resource(request)
-
-        # Establish that a new wrapper was not created for this call
-        assert wrapper_fn.call_count == 0
-        assert mock_rpc.call_count == 2
-
-
-@pytest.mark.asyncio
-async def test_patch_resource_empty_call_async():
-    # This test is a coverage failsafe to make sure that totally empty calls,
-    # i.e. request == None and no flattened fields passed, work.
-    client = GatewayServiceAsyncClient(
-        credentials=ga_credentials.AnonymousCredentials(),
-        transport="grpc_asyncio",
-    )
-
-    # Mock the actual call within the gRPC stub, and fake the request.
-    with mock.patch.object(type(client.transport.patch_resource), "__call__") as call:
-        # Designate an appropriate return value for the call.
-        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
-            httpbody_pb2.HttpBody(
-                content_type="content_type_value",
-                data=b"data_blob",
-            )
-        )
-        response = await client.patch_resource()
-        call.assert_called()
-        _, args, _ = call.mock_calls[0]
-        assert args[0] == httpbody_pb2.HttpBody()
-
-
-@pytest.mark.asyncio
-async def test_patch_resource_async_use_cached_wrapped_rpc(
-    transport: str = "grpc_asyncio",
-):
-    # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
-    # instead of constructing them on each call
-    with mock.patch("google.api_core.gapic_v1.method_async.wrap_method") as wrapper_fn:
-        client = GatewayServiceAsyncClient(
-            credentials=ga_credentials.AnonymousCredentials(),
-            transport=transport,
-        )
-
-        # Should wrap all calls on client creation
-        assert wrapper_fn.call_count > 0
-        wrapper_fn.reset_mock()
-
-        # Ensure method has been cached
-        assert (
-            client._client._transport.patch_resource
-            in client._client._transport._wrapped_methods
-        )
-
-        # Replace cached wrapped function with mock
-        mock_rpc = mock.AsyncMock()
-        mock_rpc.return_value = mock.Mock()
-        client._client._transport._wrapped_methods[
-            client._client._transport.patch_resource
-        ] = mock_rpc
-
-        request = {}
-        await client.patch_resource(request)
-
-        # Establish that the underlying gRPC stub method was called.
-        assert mock_rpc.call_count == 1
-
-        await client.patch_resource(request)
-
-        # Establish that a new wrapper was not created for this call
-        assert wrapper_fn.call_count == 0
-        assert mock_rpc.call_count == 2
-
-
-@pytest.mark.asyncio
-async def test_patch_resource_async(
-    transport: str = "grpc_asyncio", request_type=httpbody_pb2.HttpBody
-):
-    client = GatewayServiceAsyncClient(
-        credentials=ga_credentials.AnonymousCredentials(),
-        transport=transport,
-    )
-
-    # Everything is optional in proto3 as far as the runtime is concerned,
-    # and we are mocking out the actual API, so just send an empty request.
-    request = request_type()
-
-    # Mock the actual call within the gRPC stub, and fake the request.
-    with mock.patch.object(type(client.transport.patch_resource), "__call__") as call:
-        # Designate an appropriate return value for the call.
-        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
-            httpbody_pb2.HttpBody(
-                content_type="content_type_value",
-                data=b"data_blob",
-            )
-        )
-        response = await client.patch_resource(request)
-
-        # Establish that the underlying gRPC stub method was called.
-        assert len(call.mock_calls)
-        _, args, _ = call.mock_calls[0]
-        request = httpbody_pb2.HttpBody()
-        assert args[0] == request
-
-    # Establish that the response is the type that we expect.
-    assert isinstance(response, httpbody_pb2.HttpBody)
-    assert response.content_type == "content_type_value"
-    assert response.data == b"data_blob"
-
-
-@pytest.mark.asyncio
-async def test_patch_resource_async_from_dict():
-    await test_patch_resource_async(request_type=dict)
-
-
-def test_patch_resource_from_dict_foreign():
-    client = GatewayServiceClient(
-        credentials=ga_credentials.AnonymousCredentials(),
-    )
-    # Mock the actual call within the gRPC stub, and fake the request.
-    with mock.patch.object(type(client.transport.patch_resource), "__call__") as call:
-        # Designate an appropriate return value for the call.
-        call.return_value = httpbody_pb2.HttpBody()
-        response = client.patch_resource(
-            request={
-                "content_type": "content_type_value",
-                "data": b"data_blob",
-                "extensions": [
-                    any_pb2.Any(type_url="type.googleapis.com/google.protobuf.Empty")
-                ],
-            }
-        )
-        call.assert_called()
-
-
-def test_credentials_transport_error():
-    # It is an error to provide credentials and a transport instance.
-    transport = transports.GatewayServiceGrpcTransport(
-        credentials=ga_credentials.AnonymousCredentials(),
-    )
-    with pytest.raises(ValueError):
-        client = GatewayServiceClient(
-            credentials=ga_credentials.AnonymousCredentials(),
-            transport=transport,
-        )
-
-    # It is an error to provide a credentials file and a transport instance.
-    transport = transports.GatewayServiceGrpcTransport(
-        credentials=ga_credentials.AnonymousCredentials(),
-    )
-    with pytest.raises(ValueError):
-        client = GatewayServiceClient(
-            client_options={"credentials_file": "credentials.json"},
-            transport=transport,
-        )
-
-    # It is an error to provide an api_key and a transport instance.
-    transport = transports.GatewayServiceGrpcTransport(
-        credentials=ga_credentials.AnonymousCredentials(),
-    )
-    options = client_options.ClientOptions()
-    options.api_key = "api_key"
-    with pytest.raises(ValueError):
-        client = GatewayServiceClient(
-            client_options=options,
-            transport=transport,
-        )
-
-    # It is an error to provide an api_key and a credential.
-    options = client_options.ClientOptions()
-    options.api_key = "api_key"
-    with pytest.raises(ValueError):
-        client = GatewayServiceClient(
-            client_options=options, credentials=ga_credentials.AnonymousCredentials()
-        )
-
-    # It is an error to provide scopes and a transport instance.
-    transport = transports.GatewayServiceGrpcTransport(
-        credentials=ga_credentials.AnonymousCredentials(),
-    )
-    with pytest.raises(ValueError):
-        client = GatewayServiceClient(
-            client_options={"scopes": ["1", "2"]},
-            transport=transport,
-        )
-
-
-def test_transport_instance():
-    # A client may be instantiated with a custom transport instance.
-    transport = transports.GatewayServiceGrpcTransport(
-        credentials=ga_credentials.AnonymousCredentials(),
-    )
-    client = GatewayServiceClient(transport=transport)
-    assert client.transport is transport
+def test_transport_instance():
+    # A client may be instantiated with a custom transport instance.
+    transport = transports.GatewayControlGrpcTransport(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+    client = GatewayControlClient(transport=transport)
+    assert client.transport is transport
 
 
 def test_transport_get_channel():
     # A client may be instantiated with a custom transport instance.
-    transport = transports.GatewayServiceGrpcTransport(
+    transport = transports.GatewayControlGrpcTransport(
         credentials=ga_credentials.AnonymousCredentials(),
     )
     channel = transport.grpc_channel
     assert channel
 
-    transport = transports.GatewayServiceGrpcAsyncIOTransport(
+    transport = transports.GatewayControlGrpcAsyncIOTransport(
         credentials=ga_credentials.AnonymousCredentials(),
     )
     channel = transport.grpc_channel
@@ -2408,8 +1776,9 @@ def test_transport_get_channel():
 @pytest.mark.parametrize(
     "transport_class",
     [
-        transports.GatewayServiceGrpcTransport,
-        transports.GatewayServiceGrpcAsyncIOTransport,
+        transports.GatewayControlGrpcTransport,
+        transports.GatewayControlGrpcAsyncIOTransport,
+        transports.GatewayControlRestTransport,
     ],
 )
 def test_transport_adc(transport_class):
@@ -2424,10 +1793,11 @@ def test_transport_adc(transport_class):
     "transport_name",
     [
         "grpc",
+        "rest",
     ],
 )
 def test_transport_kind(transport_name):
-    transport = GatewayServiceClient.get_transport_class(transport_name)(
+    transport = GatewayControlClient.get_transport_class(transport_name)(
         credentials=ga_credentials.AnonymousCredentials(),
     )
     assert transport.kind == transport_name
@@ -2435,43 +1805,37 @@ def test_transport_kind(transport_name):
 
 def test_transport_grpc_default():
     # A client should use the gRPC transport by default.
-    client = GatewayServiceClient(
+    client = GatewayControlClient(
         credentials=ga_credentials.AnonymousCredentials(),
     )
     assert isinstance(
         client.transport,
-        transports.GatewayServiceGrpcTransport,
+        transports.GatewayControlGrpcTransport,
     )
 
 
-def test_gateway_service_base_transport_error():
+def test_gateway_control_base_transport_error():
     # Passing both a credentials object and credentials_file should raise an error
     with pytest.raises(core_exceptions.DuplicateCredentialArgs):
-        transport = transports.GatewayServiceTransport(
+        transport = transports.GatewayControlTransport(
             credentials=ga_credentials.AnonymousCredentials(),
             credentials_file="credentials.json",
         )
 
 
-def test_gateway_service_base_transport():
+def test_gateway_control_base_transport():
     # Instantiate the base transport.
     with mock.patch(
-        "google.cloud.gkeconnect.gateway_v1beta1.services.gateway_service.transports.GatewayServiceTransport.__init__"
+        "google.cloud.gkeconnect.gateway_v1.services.gateway_control.transports.GatewayControlTransport.__init__"
     ) as Transport:
         Transport.return_value = None
-        transport = transports.GatewayServiceTransport(
+        transport = transports.GatewayControlTransport(
             credentials=ga_credentials.AnonymousCredentials(),
         )
 
     # Every method on the transport should just blindly
     # raise NotImplementedError.
-    methods = (
-        "get_resource",
-        "post_resource",
-        "delete_resource",
-        "put_resource",
-        "patch_resource",
-    )
+    methods = ("generate_credentials",)
     for method in methods:
         with pytest.raises(NotImplementedError):
             getattr(transport, method)(request=object())
@@ -2488,16 +1852,16 @@ def test_gateway_service_base_transport():
             getattr(transport, r)()
 
 
-def test_gateway_service_base_transport_with_credentials_file():
+def test_gateway_control_base_transport_with_credentials_file():
     # Instantiate the base transport with a credentials file
     with mock.patch.object(
         google.auth, "load_credentials_from_file", autospec=True
     ) as load_creds, mock.patch(
-        "google.cloud.gkeconnect.gateway_v1beta1.services.gateway_service.transports.GatewayServiceTransport._prep_wrapped_messages"
+        "google.cloud.gkeconnect.gateway_v1.services.gateway_control.transports.GatewayControlTransport._prep_wrapped_messages"
     ) as Transport:
         Transport.return_value = None
         load_creds.return_value = (ga_credentials.AnonymousCredentials(), None)
-        transport = transports.GatewayServiceTransport(
+        transport = transports.GatewayControlTransport(
             credentials_file="credentials.json",
             quota_project_id="octopus",
         )
@@ -2509,22 +1873,22 @@ def test_gateway_service_base_transport_with_credentials_file():
         )
 
 
-def test_gateway_service_base_transport_with_adc():
+def test_gateway_control_base_transport_with_adc():
     # Test the default credentials are used if credentials and credentials_file are None.
     with mock.patch.object(google.auth, "default", autospec=True) as adc, mock.patch(
-        "google.cloud.gkeconnect.gateway_v1beta1.services.gateway_service.transports.GatewayServiceTransport._prep_wrapped_messages"
+        "google.cloud.gkeconnect.gateway_v1.services.gateway_control.transports.GatewayControlTransport._prep_wrapped_messages"
     ) as Transport:
         Transport.return_value = None
         adc.return_value = (ga_credentials.AnonymousCredentials(), None)
-        transport = transports.GatewayServiceTransport()
+        transport = transports.GatewayControlTransport()
         adc.assert_called_once()
 
 
-def test_gateway_service_auth_adc():
+def test_gateway_control_auth_adc():
     # If no credentials are provided, we should use ADC credentials.
     with mock.patch.object(google.auth, "default", autospec=True) as adc:
         adc.return_value = (ga_credentials.AnonymousCredentials(), None)
-        GatewayServiceClient()
+        GatewayControlClient()
         adc.assert_called_once_with(
             scopes=None,
             default_scopes=("https://www.googleapis.com/auth/cloud-platform",),
@@ -2535,11 +1899,11 @@ def test_gateway_service_auth_adc():
 @pytest.mark.parametrize(
     "transport_class",
     [
-        transports.GatewayServiceGrpcTransport,
-        transports.GatewayServiceGrpcAsyncIOTransport,
+        transports.GatewayControlGrpcTransport,
+        transports.GatewayControlGrpcAsyncIOTransport,
     ],
 )
-def test_gateway_service_transport_auth_adc(transport_class):
+def test_gateway_control_transport_auth_adc(transport_class):
     # If credentials and host are not provided, the transport class should use
     # ADC credentials.
     with mock.patch.object(google.auth, "default", autospec=True) as adc:
@@ -2555,11 +1919,12 @@ def test_gateway_service_transport_auth_adc(transport_class):
 @pytest.mark.parametrize(
     "transport_class",
     [
-        transports.GatewayServiceGrpcTransport,
-        transports.GatewayServiceGrpcAsyncIOTransport,
+        transports.GatewayControlGrpcTransport,
+        transports.GatewayControlGrpcAsyncIOTransport,
+        transports.GatewayControlRestTransport,
     ],
 )
-def test_gateway_service_transport_auth_gdch_credentials(transport_class):
+def test_gateway_control_transport_auth_gdch_credentials(transport_class):
     host = "https://language.com"
     api_audience_tests = [None, "https://language2.com"]
     api_audience_expect = [host, "https://language2.com"]
@@ -2577,11 +1942,11 @@ def test_gateway_service_transport_auth_gdch_credentials(transport_class):
 @pytest.mark.parametrize(
     "transport_class,grpc_helpers",
     [
-        (transports.GatewayServiceGrpcTransport, grpc_helpers),
-        (transports.GatewayServiceGrpcAsyncIOTransport, grpc_helpers_async),
+        (transports.GatewayControlGrpcTransport, grpc_helpers),
+        (transports.GatewayControlGrpcAsyncIOTransport, grpc_helpers_async),
     ],
 )
-def test_gateway_service_transport_create_channel(transport_class, grpc_helpers):
+def test_gateway_control_transport_create_channel(transport_class, grpc_helpers):
     # If credentials and host are not provided, the transport class should use
     # ADC credentials.
     with mock.patch.object(
@@ -2612,11 +1977,11 @@ def test_gateway_service_transport_create_channel(transport_class, grpc_helpers)
 @pytest.mark.parametrize(
     "transport_class",
     [
-        transports.GatewayServiceGrpcTransport,
-        transports.GatewayServiceGrpcAsyncIOTransport,
+        transports.GatewayControlGrpcTransport,
+        transports.GatewayControlGrpcAsyncIOTransport,
     ],
 )
-def test_gateway_service_grpc_transport_client_cert_source_for_mtls(transport_class):
+def test_gateway_control_grpc_transport_client_cert_source_for_mtls(transport_class):
     cred = ga_credentials.AnonymousCredentials()
 
     # Check ssl_channel_credentials is used if provided.
@@ -2654,22 +2019,38 @@ def test_gateway_service_grpc_transport_client_cert_source_for_mtls(transport_cl
             )
 
 
+def test_gateway_control_http_transport_client_cert_source_for_mtls():
+    cred = ga_credentials.AnonymousCredentials()
+    with mock.patch(
+        "google.auth.transport.requests.AuthorizedSession.configure_mtls_channel"
+    ) as mock_configure_mtls_channel:
+        transports.GatewayControlRestTransport(
+            credentials=cred, client_cert_source_for_mtls=client_cert_source_callback
+        )
+        mock_configure_mtls_channel.assert_called_once_with(client_cert_source_callback)
+
+
 @pytest.mark.parametrize(
     "transport_name",
     [
         "grpc",
         "grpc_asyncio",
+        "rest",
     ],
 )
-def test_gateway_service_host_no_port(transport_name):
-    client = GatewayServiceClient(
+def test_gateway_control_host_no_port(transport_name):
+    client = GatewayControlClient(
         credentials=ga_credentials.AnonymousCredentials(),
         client_options=client_options.ClientOptions(
             api_endpoint="connectgateway.googleapis.com"
         ),
         transport=transport_name,
     )
-    assert client.transport._host == ("connectgateway.googleapis.com:443")
+    assert client.transport._host == (
+        "connectgateway.googleapis.com:443"
+        if transport_name in ["grpc", "grpc_asyncio"]
+        else "https://connectgateway.googleapis.com"
+    )
 
 
 @pytest.mark.parametrize(
@@ -2677,24 +2058,51 @@ def test_gateway_service_host_no_port(transport_name):
     [
         "grpc",
         "grpc_asyncio",
+        "rest",
     ],
 )
-def test_gateway_service_host_with_port(transport_name):
-    client = GatewayServiceClient(
+def test_gateway_control_host_with_port(transport_name):
+    client = GatewayControlClient(
         credentials=ga_credentials.AnonymousCredentials(),
         client_options=client_options.ClientOptions(
             api_endpoint="connectgateway.googleapis.com:8000"
         ),
         transport=transport_name,
     )
-    assert client.transport._host == ("connectgateway.googleapis.com:8000")
+    assert client.transport._host == (
+        "connectgateway.googleapis.com:8000"
+        if transport_name in ["grpc", "grpc_asyncio"]
+        else "https://connectgateway.googleapis.com:8000"
+    )
+
+
+@pytest.mark.parametrize(
+    "transport_name",
+    [
+        "rest",
+    ],
+)
+def test_gateway_control_client_transport_session_collision(transport_name):
+    creds1 = ga_credentials.AnonymousCredentials()
+    creds2 = ga_credentials.AnonymousCredentials()
+    client1 = GatewayControlClient(
+        credentials=creds1,
+        transport=transport_name,
+    )
+    client2 = GatewayControlClient(
+        credentials=creds2,
+        transport=transport_name,
+    )
+    session1 = client1.transport.generate_credentials._session
+    session2 = client2.transport.generate_credentials._session
+    assert session1 != session2
 
 
-def test_gateway_service_grpc_transport_channel():
+def test_gateway_control_grpc_transport_channel():
     channel = grpc.secure_channel("http://localhost/", grpc.local_channel_credentials())
 
     # Check that channel is used if provided.
-    transport = transports.GatewayServiceGrpcTransport(
+    transport = transports.GatewayControlGrpcTransport(
         host="squid.clam.whelk",
         channel=channel,
     )
@@ -2703,11 +2111,11 @@ def test_gateway_service_grpc_transport_channel():
     assert transport._ssl_channel_credentials == None
 
 
-def test_gateway_service_grpc_asyncio_transport_channel():
+def test_gateway_control_grpc_asyncio_transport_channel():
     channel = aio.secure_channel("http://localhost/", grpc.local_channel_credentials())
 
     # Check that channel is used if provided.
-    transport = transports.GatewayServiceGrpcAsyncIOTransport(
+    transport = transports.GatewayControlGrpcAsyncIOTransport(
         host="squid.clam.whelk",
         channel=channel,
     )
@@ -2721,11 +2129,11 @@ def test_gateway_service_grpc_asyncio_transport_channel():
 @pytest.mark.parametrize(
     "transport_class",
     [
-        transports.GatewayServiceGrpcTransport,
-        transports.GatewayServiceGrpcAsyncIOTransport,
+        transports.GatewayControlGrpcTransport,
+        transports.GatewayControlGrpcAsyncIOTransport,
     ],
 )
-def test_gateway_service_transport_channel_mtls_with_client_cert_source(
+def test_gateway_control_transport_channel_mtls_with_client_cert_source(
     transport_class,
 ):
     with mock.patch(
@@ -2775,11 +2183,11 @@ def test_gateway_service_transport_channel_mtls_with_client_cert_source(
 @pytest.mark.parametrize(
     "transport_class",
     [
-        transports.GatewayServiceGrpcTransport,
-        transports.GatewayServiceGrpcAsyncIOTransport,
+        transports.GatewayControlGrpcTransport,
+        transports.GatewayControlGrpcAsyncIOTransport,
     ],
 )
-def test_gateway_service_transport_channel_mtls_with_adc(transport_class):
+def test_gateway_control_transport_channel_mtls_with_adc(transport_class):
     mock_ssl_cred = mock.Mock()
     with mock.patch.multiple(
         "google.auth.transport.grpc.SslCredentials",
@@ -2821,7 +2229,7 @@ def test_common_billing_account_path():
     expected = "billingAccounts/{billing_account}".format(
         billing_account=billing_account,
     )
-    actual = GatewayServiceClient.common_billing_account_path(billing_account)
+    actual = GatewayControlClient.common_billing_account_path(billing_account)
     assert expected == actual
 
 
@@ -2829,10 +2237,10 @@ def test_parse_common_billing_account_path():
     expected = {
         "billing_account": "clam",
     }
-    path = GatewayServiceClient.common_billing_account_path(**expected)
+    path = GatewayControlClient.common_billing_account_path(**expected)
 
     # Check that the path construction is reversible.
-    actual = GatewayServiceClient.parse_common_billing_account_path(path)
+    actual = GatewayControlClient.parse_common_billing_account_path(path)
     assert expected == actual
 
 
@@ -2841,7 +2249,7 @@ def test_common_folder_path():
     expected = "folders/{folder}".format(
         folder=folder,
     )
-    actual = GatewayServiceClient.common_folder_path(folder)
+    actual = GatewayControlClient.common_folder_path(folder)
     assert expected == actual
 
 
@@ -2849,10 +2257,10 @@ def test_parse_common_folder_path():
     expected = {
         "folder": "octopus",
     }
-    path = GatewayServiceClient.common_folder_path(**expected)
+    path = GatewayControlClient.common_folder_path(**expected)
 
     # Check that the path construction is reversible.
-    actual = GatewayServiceClient.parse_common_folder_path(path)
+    actual = GatewayControlClient.parse_common_folder_path(path)
     assert expected == actual
 
 
@@ -2861,7 +2269,7 @@ def test_common_organization_path():
     expected = "organizations/{organization}".format(
         organization=organization,
     )
-    actual = GatewayServiceClient.common_organization_path(organization)
+    actual = GatewayControlClient.common_organization_path(organization)
     assert expected == actual
 
 
@@ -2869,10 +2277,10 @@ def test_parse_common_organization_path():
     expected = {
         "organization": "nudibranch",
     }
-    path = GatewayServiceClient.common_organization_path(**expected)
+    path = GatewayControlClient.common_organization_path(**expected)
 
     # Check that the path construction is reversible.
-    actual = GatewayServiceClient.parse_common_organization_path(path)
+    actual = GatewayControlClient.parse_common_organization_path(path)
     assert expected == actual
 
 
@@ -2881,7 +2289,7 @@ def test_common_project_path():
     expected = "projects/{project}".format(
         project=project,
     )
-    actual = GatewayServiceClient.common_project_path(project)
+    actual = GatewayControlClient.common_project_path(project)
     assert expected == actual
 
 
@@ -2889,10 +2297,10 @@ def test_parse_common_project_path():
     expected = {
         "project": "mussel",
     }
-    path = GatewayServiceClient.common_project_path(**expected)
+    path = GatewayControlClient.common_project_path(**expected)
 
     # Check that the path construction is reversible.
-    actual = GatewayServiceClient.parse_common_project_path(path)
+    actual = GatewayControlClient.parse_common_project_path(path)
     assert expected == actual
 
 
@@ -2903,7 +2311,7 @@ def test_common_location_path():
         project=project,
         location=location,
     )
-    actual = GatewayServiceClient.common_location_path(project, location)
+    actual = GatewayControlClient.common_location_path(project, location)
     assert expected == actual
 
 
@@ -2912,10 +2320,10 @@ def test_parse_common_location_path():
         "project": "scallop",
         "location": "abalone",
     }
-    path = GatewayServiceClient.common_location_path(**expected)
+    path = GatewayControlClient.common_location_path(**expected)
 
     # Check that the path construction is reversible.
-    actual = GatewayServiceClient.parse_common_location_path(path)
+    actual = GatewayControlClient.parse_common_location_path(path)
     assert expected == actual
 
 
@@ -2923,18 +2331,18 @@ def test_client_with_default_client_info():
     client_info = gapic_v1.client_info.ClientInfo()
 
     with mock.patch.object(
-        transports.GatewayServiceTransport, "_prep_wrapped_messages"
+        transports.GatewayControlTransport, "_prep_wrapped_messages"
     ) as prep:
-        client = GatewayServiceClient(
+        client = GatewayControlClient(
             credentials=ga_credentials.AnonymousCredentials(),
             client_info=client_info,
         )
         prep.assert_called_once_with(client_info)
 
     with mock.patch.object(
-        transports.GatewayServiceTransport, "_prep_wrapped_messages"
+        transports.GatewayControlTransport, "_prep_wrapped_messages"
     ) as prep:
-        transport_class = GatewayServiceClient.get_transport_class()
+        transport_class = GatewayControlClient.get_transport_class()
         transport = transport_class(
             credentials=ga_credentials.AnonymousCredentials(),
             client_info=client_info,
@@ -2944,7 +2352,7 @@ def test_client_with_default_client_info():
 
 @pytest.mark.asyncio
 async def test_transport_close_async():
-    client = GatewayServiceAsyncClient(
+    client = GatewayControlAsyncClient(
         credentials=ga_credentials.AnonymousCredentials(),
         transport="grpc_asyncio",
     )
@@ -2958,11 +2366,12 @@ async def test_transport_close_async():
 
 def test_transport_close():
     transports = {
+        "rest": "_session",
         "grpc": "_grpc_channel",
     }
 
     for transport, close_name in transports.items():
-        client = GatewayServiceClient(
+        client = GatewayControlClient(
             credentials=ga_credentials.AnonymousCredentials(), transport=transport
         )
         with mock.patch.object(
@@ -2975,10 +2384,11 @@ def test_transport_close():
 
 def test_client_ctx():
     transports = [
+        "rest",
         "grpc",
     ]
     for transport in transports:
-        client = GatewayServiceClient(
+        client = GatewayControlClient(
             credentials=ga_credentials.AnonymousCredentials(), transport=transport
         )
         # Test client calls underlying transport.
@@ -2992,8 +2402,8 @@ def test_client_ctx():
 @pytest.mark.parametrize(
     "client_class,transport_class",
     [
-        (GatewayServiceClient, transports.GatewayServiceGrpcTransport),
-        (GatewayServiceAsyncClient, transports.GatewayServiceGrpcAsyncIOTransport),
+        (GatewayControlClient, transports.GatewayControlGrpcTransport),
+        (GatewayControlAsyncClient, transports.GatewayControlGrpcAsyncIOTransport),
     ],
 )
 def test_api_key_credentials(client_class, transport_class):
diff --git a/packages/google-cloud-gke-connect-gateway/tests/unit/gapic/gateway_v1beta1/test_gateway_control.py b/packages/google-cloud-gke-connect-gateway/tests/unit/gapic/gateway_v1beta1/test_gateway_control.py
new file mode 100644
index 000000000000..024863c9d32c
--- /dev/null
+++ b/packages/google-cloud-gke-connect-gateway/tests/unit/gapic/gateway_v1beta1/test_gateway_control.py
@@ -0,0 +1,2090 @@
+# -*- coding: utf-8 -*-
+# Copyright 2024 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+import os
+
+# try/except added for compatibility with python < 3.8
+try:
+    from unittest import mock
+    from unittest.mock import AsyncMock  # pragma: NO COVER
+except ImportError:  # pragma: NO COVER
+    import mock
+
+import math
+
+from google.api_core import gapic_v1, grpc_helpers, grpc_helpers_async, path_template
+from google.api_core import api_core_version, client_options
+from google.api_core import exceptions as core_exceptions
+from google.api_core import retry as retries
+import google.auth
+from google.auth import credentials as ga_credentials
+from google.auth.exceptions import MutualTLSChannelError
+from google.oauth2 import service_account
+import grpc
+from grpc.experimental import aio
+from proto.marshal.rules import wrappers
+from proto.marshal.rules.dates import DurationRule, TimestampRule
+import pytest
+
+from google.cloud.gkeconnect.gateway_v1beta1.services.gateway_control import (
+    GatewayControlAsyncClient,
+    GatewayControlClient,
+    transports,
+)
+from google.cloud.gkeconnect.gateway_v1beta1.types import control
+
+
+def client_cert_source_callback():
+    return b"cert bytes", b"key bytes"
+
+
+# If default endpoint is localhost, then default mtls endpoint will be the same.
+# This method modifies the default endpoint so the client can produce a different
+# mtls endpoint for endpoint testing purposes.
+def modify_default_endpoint(client):
+    return (
+        "foo.googleapis.com"
+        if ("localhost" in client.DEFAULT_ENDPOINT)
+        else client.DEFAULT_ENDPOINT
+    )
+
+
+# If default endpoint template is localhost, then default mtls endpoint will be the same.
+# This method modifies the default endpoint template so the client can produce a different
+# mtls endpoint for endpoint testing purposes.
+def modify_default_endpoint_template(client):
+    return (
+        "test.{UNIVERSE_DOMAIN}"
+        if ("localhost" in client._DEFAULT_ENDPOINT_TEMPLATE)
+        else client._DEFAULT_ENDPOINT_TEMPLATE
+    )
+
+
+def test__get_default_mtls_endpoint():
+    api_endpoint = "example.googleapis.com"
+    api_mtls_endpoint = "example.mtls.googleapis.com"
+    sandbox_endpoint = "example.sandbox.googleapis.com"
+    sandbox_mtls_endpoint = "example.mtls.sandbox.googleapis.com"
+    non_googleapi = "api.example.com"
+
+    assert GatewayControlClient._get_default_mtls_endpoint(None) is None
+    assert (
+        GatewayControlClient._get_default_mtls_endpoint(api_endpoint)
+        == api_mtls_endpoint
+    )
+    assert (
+        GatewayControlClient._get_default_mtls_endpoint(api_mtls_endpoint)
+        == api_mtls_endpoint
+    )
+    assert (
+        GatewayControlClient._get_default_mtls_endpoint(sandbox_endpoint)
+        == sandbox_mtls_endpoint
+    )
+    assert (
+        GatewayControlClient._get_default_mtls_endpoint(sandbox_mtls_endpoint)
+        == sandbox_mtls_endpoint
+    )
+    assert (
+        GatewayControlClient._get_default_mtls_endpoint(non_googleapi) == non_googleapi
+    )
+
+
+def test__read_environment_variables():
+    assert GatewayControlClient._read_environment_variables() == (False, "auto", None)
+
+    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": "true"}):
+        assert GatewayControlClient._read_environment_variables() == (
+            True,
+            "auto",
+            None,
+        )
+
+    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": "false"}):
+        assert GatewayControlClient._read_environment_variables() == (
+            False,
+            "auto",
+            None,
+        )
+
+    with mock.patch.dict(
+        os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": "Unsupported"}
+    ):
+        with pytest.raises(ValueError) as excinfo:
+            GatewayControlClient._read_environment_variables()
+    assert (
+        str(excinfo.value)
+        == "Environment variable `GOOGLE_API_USE_CLIENT_CERTIFICATE` must be either `true` or `false`"
+    )
+
+    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "never"}):
+        assert GatewayControlClient._read_environment_variables() == (
+            False,
+            "never",
+            None,
+        )
+
+    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "always"}):
+        assert GatewayControlClient._read_environment_variables() == (
+            False,
+            "always",
+            None,
+        )
+
+    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "auto"}):
+        assert GatewayControlClient._read_environment_variables() == (
+            False,
+            "auto",
+            None,
+        )
+
+    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "Unsupported"}):
+        with pytest.raises(MutualTLSChannelError) as excinfo:
+            GatewayControlClient._read_environment_variables()
+    assert (
+        str(excinfo.value)
+        == "Environment variable `GOOGLE_API_USE_MTLS_ENDPOINT` must be `never`, `auto` or `always`"
+    )
+
+    with mock.patch.dict(os.environ, {"GOOGLE_CLOUD_UNIVERSE_DOMAIN": "foo.com"}):
+        assert GatewayControlClient._read_environment_variables() == (
+            False,
+            "auto",
+            "foo.com",
+        )
+
+
+def test__get_client_cert_source():
+    mock_provided_cert_source = mock.Mock()
+    mock_default_cert_source = mock.Mock()
+
+    assert GatewayControlClient._get_client_cert_source(None, False) is None
+    assert (
+        GatewayControlClient._get_client_cert_source(mock_provided_cert_source, False)
+        is None
+    )
+    assert (
+        GatewayControlClient._get_client_cert_source(mock_provided_cert_source, True)
+        == mock_provided_cert_source
+    )
+
+    with mock.patch(
+        "google.auth.transport.mtls.has_default_client_cert_source", return_value=True
+    ):
+        with mock.patch(
+            "google.auth.transport.mtls.default_client_cert_source",
+            return_value=mock_default_cert_source,
+        ):
+            assert (
+                GatewayControlClient._get_client_cert_source(None, True)
+                is mock_default_cert_source
+            )
+            assert (
+                GatewayControlClient._get_client_cert_source(
+                    mock_provided_cert_source, "true"
+                )
+                is mock_provided_cert_source
+            )
+
+
+@mock.patch.object(
+    GatewayControlClient,
+    "_DEFAULT_ENDPOINT_TEMPLATE",
+    modify_default_endpoint_template(GatewayControlClient),
+)
+@mock.patch.object(
+    GatewayControlAsyncClient,
+    "_DEFAULT_ENDPOINT_TEMPLATE",
+    modify_default_endpoint_template(GatewayControlAsyncClient),
+)
+def test__get_api_endpoint():
+    api_override = "foo.com"
+    mock_client_cert_source = mock.Mock()
+    default_universe = GatewayControlClient._DEFAULT_UNIVERSE
+    default_endpoint = GatewayControlClient._DEFAULT_ENDPOINT_TEMPLATE.format(
+        UNIVERSE_DOMAIN=default_universe
+    )
+    mock_universe = "bar.com"
+    mock_endpoint = GatewayControlClient._DEFAULT_ENDPOINT_TEMPLATE.format(
+        UNIVERSE_DOMAIN=mock_universe
+    )
+
+    assert (
+        GatewayControlClient._get_api_endpoint(
+            api_override, mock_client_cert_source, default_universe, "always"
+        )
+        == api_override
+    )
+    assert (
+        GatewayControlClient._get_api_endpoint(
+            None, mock_client_cert_source, default_universe, "auto"
+        )
+        == GatewayControlClient.DEFAULT_MTLS_ENDPOINT
+    )
+    assert (
+        GatewayControlClient._get_api_endpoint(None, None, default_universe, "auto")
+        == default_endpoint
+    )
+    assert (
+        GatewayControlClient._get_api_endpoint(None, None, default_universe, "always")
+        == GatewayControlClient.DEFAULT_MTLS_ENDPOINT
+    )
+    assert (
+        GatewayControlClient._get_api_endpoint(
+            None, mock_client_cert_source, default_universe, "always"
+        )
+        == GatewayControlClient.DEFAULT_MTLS_ENDPOINT
+    )
+    assert (
+        GatewayControlClient._get_api_endpoint(None, None, mock_universe, "never")
+        == mock_endpoint
+    )
+    assert (
+        GatewayControlClient._get_api_endpoint(None, None, default_universe, "never")
+        == default_endpoint
+    )
+
+    with pytest.raises(MutualTLSChannelError) as excinfo:
+        GatewayControlClient._get_api_endpoint(
+            None, mock_client_cert_source, mock_universe, "auto"
+        )
+    assert (
+        str(excinfo.value)
+        == "mTLS is not supported in any universe other than googleapis.com."
+    )
+
+
+def test__get_universe_domain():
+    client_universe_domain = "foo.com"
+    universe_domain_env = "bar.com"
+
+    assert (
+        GatewayControlClient._get_universe_domain(
+            client_universe_domain, universe_domain_env
+        )
+        == client_universe_domain
+    )
+    assert (
+        GatewayControlClient._get_universe_domain(None, universe_domain_env)
+        == universe_domain_env
+    )
+    assert (
+        GatewayControlClient._get_universe_domain(None, None)
+        == GatewayControlClient._DEFAULT_UNIVERSE
+    )
+
+    with pytest.raises(ValueError) as excinfo:
+        GatewayControlClient._get_universe_domain("", None)
+    assert str(excinfo.value) == "Universe Domain cannot be an empty string."
+
+
+@pytest.mark.parametrize(
+    "client_class,transport_class,transport_name",
+    [
+        (GatewayControlClient, transports.GatewayControlGrpcTransport, "grpc"),
+    ],
+)
+def test__validate_universe_domain(client_class, transport_class, transport_name):
+    client = client_class(
+        transport=transport_class(credentials=ga_credentials.AnonymousCredentials())
+    )
+    assert client._validate_universe_domain() == True
+
+    # Test the case when universe is already validated.
+    assert client._validate_universe_domain() == True
+
+    if transport_name == "grpc":
+        # Test the case where credentials are provided by the
+        # `local_channel_credentials`. The default universes in both match.
+        channel = grpc.secure_channel(
+            "http://localhost/", grpc.local_channel_credentials()
+        )
+        client = client_class(transport=transport_class(channel=channel))
+        assert client._validate_universe_domain() == True
+
+        # Test the case where credentials do not exist: e.g. a transport is provided
+        # with no credentials. Validation should still succeed because there is no
+        # mismatch with non-existent credentials.
+        channel = grpc.secure_channel(
+            "http://localhost/", grpc.local_channel_credentials()
+        )
+        transport = transport_class(channel=channel)
+        transport._credentials = None
+        client = client_class(transport=transport)
+        assert client._validate_universe_domain() == True
+
+    # TODO: This is needed to cater for older versions of google-auth
+    # Make this test unconditional once the minimum supported version of
+    # google-auth becomes 2.23.0 or higher.
+    google_auth_major, google_auth_minor = [
+        int(part) for part in google.auth.__version__.split(".")[0:2]
+    ]
+    if google_auth_major > 2 or (google_auth_major == 2 and google_auth_minor >= 23):
+        credentials = ga_credentials.AnonymousCredentials()
+        credentials._universe_domain = "foo.com"
+        # Test the case when there is a universe mismatch from the credentials.
+        client = client_class(transport=transport_class(credentials=credentials))
+        with pytest.raises(ValueError) as excinfo:
+            client._validate_universe_domain()
+        assert (
+            str(excinfo.value)
+            == "The configured universe domain (googleapis.com) does not match the universe domain found in the credentials (foo.com). If you haven't configured the universe domain explicitly, `googleapis.com` is the default."
+        )
+
+        # Test the case when there is a universe mismatch from the client.
+        #
+        # TODO: Make this test unconditional once the minimum supported version of
+        # google-api-core becomes 2.15.0 or higher.
+        api_core_major, api_core_minor = [
+            int(part) for part in api_core_version.__version__.split(".")[0:2]
+        ]
+        if api_core_major > 2 or (api_core_major == 2 and api_core_minor >= 15):
+            client = client_class(
+                client_options={"universe_domain": "bar.com"},
+                transport=transport_class(
+                    credentials=ga_credentials.AnonymousCredentials(),
+                ),
+            )
+            with pytest.raises(ValueError) as excinfo:
+                client._validate_universe_domain()
+            assert (
+                str(excinfo.value)
+                == "The configured universe domain (bar.com) does not match the universe domain found in the credentials (googleapis.com). If you haven't configured the universe domain explicitly, `googleapis.com` is the default."
+            )
+
+    # Test that ValueError is raised if universe_domain is provided via client options and credentials is None
+    with pytest.raises(ValueError):
+        client._compare_universes("foo.bar", None)
+
+
+@pytest.mark.parametrize(
+    "client_class,transport_name",
+    [
+        (GatewayControlClient, "grpc"),
+        (GatewayControlAsyncClient, "grpc_asyncio"),
+    ],
+)
+def test_gateway_control_client_from_service_account_info(client_class, transport_name):
+    creds = ga_credentials.AnonymousCredentials()
+    with mock.patch.object(
+        service_account.Credentials, "from_service_account_info"
+    ) as factory:
+        factory.return_value = creds
+        info = {"valid": True}
+        client = client_class.from_service_account_info(info, transport=transport_name)
+        assert client.transport._credentials == creds
+        assert isinstance(client, client_class)
+
+        assert client.transport._host == ("connectgateway.googleapis.com:443")
+
+
+@pytest.mark.parametrize(
+    "transport_class,transport_name",
+    [
+        (transports.GatewayControlGrpcTransport, "grpc"),
+        (transports.GatewayControlGrpcAsyncIOTransport, "grpc_asyncio"),
+    ],
+)
+def test_gateway_control_client_service_account_always_use_jwt(
+    transport_class, transport_name
+):
+    with mock.patch.object(
+        service_account.Credentials, "with_always_use_jwt_access", create=True
+    ) as use_jwt:
+        creds = service_account.Credentials(None, None, None)
+        transport = transport_class(credentials=creds, always_use_jwt_access=True)
+        use_jwt.assert_called_once_with(True)
+
+    with mock.patch.object(
+        service_account.Credentials, "with_always_use_jwt_access", create=True
+    ) as use_jwt:
+        creds = service_account.Credentials(None, None, None)
+        transport = transport_class(credentials=creds, always_use_jwt_access=False)
+        use_jwt.assert_not_called()
+
+
+@pytest.mark.parametrize(
+    "client_class,transport_name",
+    [
+        (GatewayControlClient, "grpc"),
+        (GatewayControlAsyncClient, "grpc_asyncio"),
+    ],
+)
+def test_gateway_control_client_from_service_account_file(client_class, transport_name):
+    creds = ga_credentials.AnonymousCredentials()
+    with mock.patch.object(
+        service_account.Credentials, "from_service_account_file"
+    ) as factory:
+        factory.return_value = creds
+        client = client_class.from_service_account_file(
+            "dummy/file/path.json", transport=transport_name
+        )
+        assert client.transport._credentials == creds
+        assert isinstance(client, client_class)
+
+        client = client_class.from_service_account_json(
+            "dummy/file/path.json", transport=transport_name
+        )
+        assert client.transport._credentials == creds
+        assert isinstance(client, client_class)
+
+        assert client.transport._host == ("connectgateway.googleapis.com:443")
+
+
+def test_gateway_control_client_get_transport_class():
+    transport = GatewayControlClient.get_transport_class()
+    available_transports = [
+        transports.GatewayControlGrpcTransport,
+    ]
+    assert transport in available_transports
+
+    transport = GatewayControlClient.get_transport_class("grpc")
+    assert transport == transports.GatewayControlGrpcTransport
+
+
+@pytest.mark.parametrize(
+    "client_class,transport_class,transport_name",
+    [
+        (GatewayControlClient, transports.GatewayControlGrpcTransport, "grpc"),
+        (
+            GatewayControlAsyncClient,
+            transports.GatewayControlGrpcAsyncIOTransport,
+            "grpc_asyncio",
+        ),
+    ],
+)
+@mock.patch.object(
+    GatewayControlClient,
+    "_DEFAULT_ENDPOINT_TEMPLATE",
+    modify_default_endpoint_template(GatewayControlClient),
+)
+@mock.patch.object(
+    GatewayControlAsyncClient,
+    "_DEFAULT_ENDPOINT_TEMPLATE",
+    modify_default_endpoint_template(GatewayControlAsyncClient),
+)
+def test_gateway_control_client_client_options(
+    client_class, transport_class, transport_name
+):
+    # Check that if channel is provided we won't create a new one.
+    with mock.patch.object(GatewayControlClient, "get_transport_class") as gtc:
+        transport = transport_class(credentials=ga_credentials.AnonymousCredentials())
+        client = client_class(transport=transport)
+        gtc.assert_not_called()
+
+    # Check that if channel is provided via str we will create a new one.
+    with mock.patch.object(GatewayControlClient, "get_transport_class") as gtc:
+        client = client_class(transport=transport_name)
+        gtc.assert_called()
+
+    # Check the case api_endpoint is provided.
+    options = client_options.ClientOptions(api_endpoint="squid.clam.whelk")
+    with mock.patch.object(transport_class, "__init__") as patched:
+        patched.return_value = None
+        client = client_class(transport=transport_name, client_options=options)
+        patched.assert_called_once_with(
+            credentials=None,
+            credentials_file=None,
+            host="squid.clam.whelk",
+            scopes=None,
+            client_cert_source_for_mtls=None,
+            quota_project_id=None,
+            client_info=transports.base.DEFAULT_CLIENT_INFO,
+            always_use_jwt_access=True,
+            api_audience=None,
+        )
+
+    # Check the case api_endpoint is not provided and GOOGLE_API_USE_MTLS_ENDPOINT is
+    # "never".
+    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "never"}):
+        with mock.patch.object(transport_class, "__init__") as patched:
+            patched.return_value = None
+            client = client_class(transport=transport_name)
+            patched.assert_called_once_with(
+                credentials=None,
+                credentials_file=None,
+                host=client._DEFAULT_ENDPOINT_TEMPLATE.format(
+                    UNIVERSE_DOMAIN=client._DEFAULT_UNIVERSE
+                ),
+                scopes=None,
+                client_cert_source_for_mtls=None,
+                quota_project_id=None,
+                client_info=transports.base.DEFAULT_CLIENT_INFO,
+                always_use_jwt_access=True,
+                api_audience=None,
+            )
+
+    # Check the case api_endpoint is not provided and GOOGLE_API_USE_MTLS_ENDPOINT is
+    # "always".
+    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "always"}):
+        with mock.patch.object(transport_class, "__init__") as patched:
+            patched.return_value = None
+            client = client_class(transport=transport_name)
+            patched.assert_called_once_with(
+                credentials=None,
+                credentials_file=None,
+                host=client.DEFAULT_MTLS_ENDPOINT,
+                scopes=None,
+                client_cert_source_for_mtls=None,
+                quota_project_id=None,
+                client_info=transports.base.DEFAULT_CLIENT_INFO,
+                always_use_jwt_access=True,
+                api_audience=None,
+            )
+
+    # Check the case api_endpoint is not provided and GOOGLE_API_USE_MTLS_ENDPOINT has
+    # unsupported value.
+    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "Unsupported"}):
+        with pytest.raises(MutualTLSChannelError) as excinfo:
+            client = client_class(transport=transport_name)
+    assert (
+        str(excinfo.value)
+        == "Environment variable `GOOGLE_API_USE_MTLS_ENDPOINT` must be `never`, `auto` or `always`"
+    )
+
+    # Check the case GOOGLE_API_USE_CLIENT_CERTIFICATE has unsupported value.
+    with mock.patch.dict(
+        os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": "Unsupported"}
+    ):
+        with pytest.raises(ValueError) as excinfo:
+            client = client_class(transport=transport_name)
+    assert (
+        str(excinfo.value)
+        == "Environment variable `GOOGLE_API_USE_CLIENT_CERTIFICATE` must be either `true` or `false`"
+    )
+
+    # Check the case quota_project_id is provided
+    options = client_options.ClientOptions(quota_project_id="octopus")
+    with mock.patch.object(transport_class, "__init__") as patched:
+        patched.return_value = None
+        client = client_class(client_options=options, transport=transport_name)
+        patched.assert_called_once_with(
+            credentials=None,
+            credentials_file=None,
+            host=client._DEFAULT_ENDPOINT_TEMPLATE.format(
+                UNIVERSE_DOMAIN=client._DEFAULT_UNIVERSE
+            ),
+            scopes=None,
+            client_cert_source_for_mtls=None,
+            quota_project_id="octopus",
+            client_info=transports.base.DEFAULT_CLIENT_INFO,
+            always_use_jwt_access=True,
+            api_audience=None,
+        )
+    # Check the case api_endpoint is provided
+    options = client_options.ClientOptions(
+        api_audience="https://language.googleapis.com"
+    )
+    with mock.patch.object(transport_class, "__init__") as patched:
+        patched.return_value = None
+        client = client_class(client_options=options, transport=transport_name)
+        patched.assert_called_once_with(
+            credentials=None,
+            credentials_file=None,
+            host=client._DEFAULT_ENDPOINT_TEMPLATE.format(
+                UNIVERSE_DOMAIN=client._DEFAULT_UNIVERSE
+            ),
+            scopes=None,
+            client_cert_source_for_mtls=None,
+            quota_project_id=None,
+            client_info=transports.base.DEFAULT_CLIENT_INFO,
+            always_use_jwt_access=True,
+            api_audience="https://language.googleapis.com",
+        )
+
+
+@pytest.mark.parametrize(
+    "client_class,transport_class,transport_name,use_client_cert_env",
+    [
+        (GatewayControlClient, transports.GatewayControlGrpcTransport, "grpc", "true"),
+        (
+            GatewayControlAsyncClient,
+            transports.GatewayControlGrpcAsyncIOTransport,
+            "grpc_asyncio",
+            "true",
+        ),
+        (GatewayControlClient, transports.GatewayControlGrpcTransport, "grpc", "false"),
+        (
+            GatewayControlAsyncClient,
+            transports.GatewayControlGrpcAsyncIOTransport,
+            "grpc_asyncio",
+            "false",
+        ),
+    ],
+)
+@mock.patch.object(
+    GatewayControlClient,
+    "_DEFAULT_ENDPOINT_TEMPLATE",
+    modify_default_endpoint_template(GatewayControlClient),
+)
+@mock.patch.object(
+    GatewayControlAsyncClient,
+    "_DEFAULT_ENDPOINT_TEMPLATE",
+    modify_default_endpoint_template(GatewayControlAsyncClient),
+)
+@mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "auto"})
+def test_gateway_control_client_mtls_env_auto(
+    client_class, transport_class, transport_name, use_client_cert_env
+):
+    # This tests the endpoint autoswitch behavior. Endpoint is autoswitched to the default
+    # mtls endpoint, if GOOGLE_API_USE_CLIENT_CERTIFICATE is "true" and client cert exists.
+
+    # Check the case client_cert_source is provided. Whether client cert is used depends on
+    # GOOGLE_API_USE_CLIENT_CERTIFICATE value.
+    with mock.patch.dict(
+        os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": use_client_cert_env}
+    ):
+        options = client_options.ClientOptions(
+            client_cert_source=client_cert_source_callback
+        )
+        with mock.patch.object(transport_class, "__init__") as patched:
+            patched.return_value = None
+            client = client_class(client_options=options, transport=transport_name)
+
+            if use_client_cert_env == "false":
+                expected_client_cert_source = None
+                expected_host = client._DEFAULT_ENDPOINT_TEMPLATE.format(
+                    UNIVERSE_DOMAIN=client._DEFAULT_UNIVERSE
+                )
+            else:
+                expected_client_cert_source = client_cert_source_callback
+                expected_host = client.DEFAULT_MTLS_ENDPOINT
+
+            patched.assert_called_once_with(
+                credentials=None,
+                credentials_file=None,
+                host=expected_host,
+                scopes=None,
+                client_cert_source_for_mtls=expected_client_cert_source,
+                quota_project_id=None,
+                client_info=transports.base.DEFAULT_CLIENT_INFO,
+                always_use_jwt_access=True,
+                api_audience=None,
+            )
+
+    # Check the case ADC client cert is provided. Whether client cert is used depends on
+    # GOOGLE_API_USE_CLIENT_CERTIFICATE value.
+    with mock.patch.dict(
+        os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": use_client_cert_env}
+    ):
+        with mock.patch.object(transport_class, "__init__") as patched:
+            with mock.patch(
+                "google.auth.transport.mtls.has_default_client_cert_source",
+                return_value=True,
+            ):
+                with mock.patch(
+                    "google.auth.transport.mtls.default_client_cert_source",
+                    return_value=client_cert_source_callback,
+                ):
+                    if use_client_cert_env == "false":
+                        expected_host = client._DEFAULT_ENDPOINT_TEMPLATE.format(
+                            UNIVERSE_DOMAIN=client._DEFAULT_UNIVERSE
+                        )
+                        expected_client_cert_source = None
+                    else:
+                        expected_host = client.DEFAULT_MTLS_ENDPOINT
+                        expected_client_cert_source = client_cert_source_callback
+
+                    patched.return_value = None
+                    client = client_class(transport=transport_name)
+                    patched.assert_called_once_with(
+                        credentials=None,
+                        credentials_file=None,
+                        host=expected_host,
+                        scopes=None,
+                        client_cert_source_for_mtls=expected_client_cert_source,
+                        quota_project_id=None,
+                        client_info=transports.base.DEFAULT_CLIENT_INFO,
+                        always_use_jwt_access=True,
+                        api_audience=None,
+                    )
+
+    # Check the case client_cert_source and ADC client cert are not provided.
+    with mock.patch.dict(
+        os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": use_client_cert_env}
+    ):
+        with mock.patch.object(transport_class, "__init__") as patched:
+            with mock.patch(
+                "google.auth.transport.mtls.has_default_client_cert_source",
+                return_value=False,
+            ):
+                patched.return_value = None
+                client = client_class(transport=transport_name)
+                patched.assert_called_once_with(
+                    credentials=None,
+                    credentials_file=None,
+                    host=client._DEFAULT_ENDPOINT_TEMPLATE.format(
+                        UNIVERSE_DOMAIN=client._DEFAULT_UNIVERSE
+                    ),
+                    scopes=None,
+                    client_cert_source_for_mtls=None,
+                    quota_project_id=None,
+                    client_info=transports.base.DEFAULT_CLIENT_INFO,
+                    always_use_jwt_access=True,
+                    api_audience=None,
+                )
+
+
+@pytest.mark.parametrize(
+    "client_class", [GatewayControlClient, GatewayControlAsyncClient]
+)
+@mock.patch.object(
+    GatewayControlClient,
+    "DEFAULT_ENDPOINT",
+    modify_default_endpoint(GatewayControlClient),
+)
+@mock.patch.object(
+    GatewayControlAsyncClient,
+    "DEFAULT_ENDPOINT",
+    modify_default_endpoint(GatewayControlAsyncClient),
+)
+def test_gateway_control_client_get_mtls_endpoint_and_cert_source(client_class):
+    mock_client_cert_source = mock.Mock()
+
+    # Test the case GOOGLE_API_USE_CLIENT_CERTIFICATE is "true".
+    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": "true"}):
+        mock_api_endpoint = "foo"
+        options = client_options.ClientOptions(
+            client_cert_source=mock_client_cert_source, api_endpoint=mock_api_endpoint
+        )
+        api_endpoint, cert_source = client_class.get_mtls_endpoint_and_cert_source(
+            options
+        )
+        assert api_endpoint == mock_api_endpoint
+        assert cert_source == mock_client_cert_source
+
+    # Test the case GOOGLE_API_USE_CLIENT_CERTIFICATE is "false".
+    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": "false"}):
+        mock_client_cert_source = mock.Mock()
+        mock_api_endpoint = "foo"
+        options = client_options.ClientOptions(
+            client_cert_source=mock_client_cert_source, api_endpoint=mock_api_endpoint
+        )
+        api_endpoint, cert_source = client_class.get_mtls_endpoint_and_cert_source(
+            options
+        )
+        assert api_endpoint == mock_api_endpoint
+        assert cert_source is None
+
+    # Test the case GOOGLE_API_USE_MTLS_ENDPOINT is "never".
+    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "never"}):
+        api_endpoint, cert_source = client_class.get_mtls_endpoint_and_cert_source()
+        assert api_endpoint == client_class.DEFAULT_ENDPOINT
+        assert cert_source is None
+
+    # Test the case GOOGLE_API_USE_MTLS_ENDPOINT is "always".
+    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "always"}):
+        api_endpoint, cert_source = client_class.get_mtls_endpoint_and_cert_source()
+        assert api_endpoint == client_class.DEFAULT_MTLS_ENDPOINT
+        assert cert_source is None
+
+    # Test the case GOOGLE_API_USE_MTLS_ENDPOINT is "auto" and default cert doesn't exist.
+    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": "true"}):
+        with mock.patch(
+            "google.auth.transport.mtls.has_default_client_cert_source",
+            return_value=False,
+        ):
+            api_endpoint, cert_source = client_class.get_mtls_endpoint_and_cert_source()
+            assert api_endpoint == client_class.DEFAULT_ENDPOINT
+            assert cert_source is None
+
+    # Test the case GOOGLE_API_USE_MTLS_ENDPOINT is "auto" and default cert exists.
+    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": "true"}):
+        with mock.patch(
+            "google.auth.transport.mtls.has_default_client_cert_source",
+            return_value=True,
+        ):
+            with mock.patch(
+                "google.auth.transport.mtls.default_client_cert_source",
+                return_value=mock_client_cert_source,
+            ):
+                (
+                    api_endpoint,
+                    cert_source,
+                ) = client_class.get_mtls_endpoint_and_cert_source()
+                assert api_endpoint == client_class.DEFAULT_MTLS_ENDPOINT
+                assert cert_source == mock_client_cert_source
+
+    # Check the case api_endpoint is not provided and GOOGLE_API_USE_MTLS_ENDPOINT has
+    # unsupported value.
+    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "Unsupported"}):
+        with pytest.raises(MutualTLSChannelError) as excinfo:
+            client_class.get_mtls_endpoint_and_cert_source()
+
+        assert (
+            str(excinfo.value)
+            == "Environment variable `GOOGLE_API_USE_MTLS_ENDPOINT` must be `never`, `auto` or `always`"
+        )
+
+    # Check the case GOOGLE_API_USE_CLIENT_CERTIFICATE has unsupported value.
+    with mock.patch.dict(
+        os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": "Unsupported"}
+    ):
+        with pytest.raises(ValueError) as excinfo:
+            client_class.get_mtls_endpoint_and_cert_source()
+
+        assert (
+            str(excinfo.value)
+            == "Environment variable `GOOGLE_API_USE_CLIENT_CERTIFICATE` must be either `true` or `false`"
+        )
+
+
+@pytest.mark.parametrize(
+    "client_class", [GatewayControlClient, GatewayControlAsyncClient]
+)
+@mock.patch.object(
+    GatewayControlClient,
+    "_DEFAULT_ENDPOINT_TEMPLATE",
+    modify_default_endpoint_template(GatewayControlClient),
+)
+@mock.patch.object(
+    GatewayControlAsyncClient,
+    "_DEFAULT_ENDPOINT_TEMPLATE",
+    modify_default_endpoint_template(GatewayControlAsyncClient),
+)
+def test_gateway_control_client_client_api_endpoint(client_class):
+    mock_client_cert_source = client_cert_source_callback
+    api_override = "foo.com"
+    default_universe = GatewayControlClient._DEFAULT_UNIVERSE
+    default_endpoint = GatewayControlClient._DEFAULT_ENDPOINT_TEMPLATE.format(
+        UNIVERSE_DOMAIN=default_universe
+    )
+    mock_universe = "bar.com"
+    mock_endpoint = GatewayControlClient._DEFAULT_ENDPOINT_TEMPLATE.format(
+        UNIVERSE_DOMAIN=mock_universe
+    )
+
+    # If ClientOptions.api_endpoint is set and GOOGLE_API_USE_CLIENT_CERTIFICATE="true",
+    # use ClientOptions.api_endpoint as the api endpoint regardless.
+    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": "true"}):
+        with mock.patch(
+            "google.auth.transport.requests.AuthorizedSession.configure_mtls_channel"
+        ):
+            options = client_options.ClientOptions(
+                client_cert_source=mock_client_cert_source, api_endpoint=api_override
+            )
+            client = client_class(
+                client_options=options,
+                credentials=ga_credentials.AnonymousCredentials(),
+            )
+            assert client.api_endpoint == api_override
+
+    # If ClientOptions.api_endpoint is not set and GOOGLE_API_USE_MTLS_ENDPOINT="never",
+    # use the _DEFAULT_ENDPOINT_TEMPLATE populated with GDU as the api endpoint.
+    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "never"}):
+        client = client_class(credentials=ga_credentials.AnonymousCredentials())
+        assert client.api_endpoint == default_endpoint
+
+    # If ClientOptions.api_endpoint is not set and GOOGLE_API_USE_MTLS_ENDPOINT="always",
+    # use the DEFAULT_MTLS_ENDPOINT as the api endpoint.
+    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "always"}):
+        client = client_class(credentials=ga_credentials.AnonymousCredentials())
+        assert client.api_endpoint == client_class.DEFAULT_MTLS_ENDPOINT
+
+    # If ClientOptions.api_endpoint is not set, GOOGLE_API_USE_MTLS_ENDPOINT="auto" (default),
+    # GOOGLE_API_USE_CLIENT_CERTIFICATE="false" (default), default cert source doesn't exist,
+    # and ClientOptions.universe_domain="bar.com",
+    # use the _DEFAULT_ENDPOINT_TEMPLATE populated with universe domain as the api endpoint.
+    options = client_options.ClientOptions()
+    universe_exists = hasattr(options, "universe_domain")
+    if universe_exists:
+        options = client_options.ClientOptions(universe_domain=mock_universe)
+        client = client_class(
+            client_options=options, credentials=ga_credentials.AnonymousCredentials()
+        )
+    else:
+        client = client_class(
+            client_options=options, credentials=ga_credentials.AnonymousCredentials()
+        )
+    assert client.api_endpoint == (
+        mock_endpoint if universe_exists else default_endpoint
+    )
+    assert client.universe_domain == (
+        mock_universe if universe_exists else default_universe
+    )
+
+    # If ClientOptions does not have a universe domain attribute and GOOGLE_API_USE_MTLS_ENDPOINT="never",
+    # use the _DEFAULT_ENDPOINT_TEMPLATE populated with GDU as the api endpoint.
+    options = client_options.ClientOptions()
+    if hasattr(options, "universe_domain"):
+        delattr(options, "universe_domain")
+    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "never"}):
+        client = client_class(
+            client_options=options, credentials=ga_credentials.AnonymousCredentials()
+        )
+        assert client.api_endpoint == default_endpoint
+
+
+@pytest.mark.parametrize(
+    "client_class,transport_class,transport_name",
+    [
+        (GatewayControlClient, transports.GatewayControlGrpcTransport, "grpc"),
+        (
+            GatewayControlAsyncClient,
+            transports.GatewayControlGrpcAsyncIOTransport,
+            "grpc_asyncio",
+        ),
+    ],
+)
+def test_gateway_control_client_client_options_scopes(
+    client_class, transport_class, transport_name
+):
+    # Check the case scopes are provided.
+    options = client_options.ClientOptions(
+        scopes=["1", "2"],
+    )
+    with mock.patch.object(transport_class, "__init__") as patched:
+        patched.return_value = None
+        client = client_class(client_options=options, transport=transport_name)
+        patched.assert_called_once_with(
+            credentials=None,
+            credentials_file=None,
+            host=client._DEFAULT_ENDPOINT_TEMPLATE.format(
+                UNIVERSE_DOMAIN=client._DEFAULT_UNIVERSE
+            ),
+            scopes=["1", "2"],
+            client_cert_source_for_mtls=None,
+            quota_project_id=None,
+            client_info=transports.base.DEFAULT_CLIENT_INFO,
+            always_use_jwt_access=True,
+            api_audience=None,
+        )
+
+
+@pytest.mark.parametrize(
+    "client_class,transport_class,transport_name,grpc_helpers",
+    [
+        (
+            GatewayControlClient,
+            transports.GatewayControlGrpcTransport,
+            "grpc",
+            grpc_helpers,
+        ),
+        (
+            GatewayControlAsyncClient,
+            transports.GatewayControlGrpcAsyncIOTransport,
+            "grpc_asyncio",
+            grpc_helpers_async,
+        ),
+    ],
+)
+def test_gateway_control_client_client_options_credentials_file(
+    client_class, transport_class, transport_name, grpc_helpers
+):
+    # Check the case credentials file is provided.
+    options = client_options.ClientOptions(credentials_file="credentials.json")
+
+    with mock.patch.object(transport_class, "__init__") as patched:
+        patched.return_value = None
+        client = client_class(client_options=options, transport=transport_name)
+        patched.assert_called_once_with(
+            credentials=None,
+            credentials_file="credentials.json",
+            host=client._DEFAULT_ENDPOINT_TEMPLATE.format(
+                UNIVERSE_DOMAIN=client._DEFAULT_UNIVERSE
+            ),
+            scopes=None,
+            client_cert_source_for_mtls=None,
+            quota_project_id=None,
+            client_info=transports.base.DEFAULT_CLIENT_INFO,
+            always_use_jwt_access=True,
+            api_audience=None,
+        )
+
+
+def test_gateway_control_client_client_options_from_dict():
+    with mock.patch(
+        "google.cloud.gkeconnect.gateway_v1beta1.services.gateway_control.transports.GatewayControlGrpcTransport.__init__"
+    ) as grpc_transport:
+        grpc_transport.return_value = None
+        client = GatewayControlClient(
+            client_options={"api_endpoint": "squid.clam.whelk"}
+        )
+        grpc_transport.assert_called_once_with(
+            credentials=None,
+            credentials_file=None,
+            host="squid.clam.whelk",
+            scopes=None,
+            client_cert_source_for_mtls=None,
+            quota_project_id=None,
+            client_info=transports.base.DEFAULT_CLIENT_INFO,
+            always_use_jwt_access=True,
+            api_audience=None,
+        )
+
+
+@pytest.mark.parametrize(
+    "client_class,transport_class,transport_name,grpc_helpers",
+    [
+        (
+            GatewayControlClient,
+            transports.GatewayControlGrpcTransport,
+            "grpc",
+            grpc_helpers,
+        ),
+        (
+            GatewayControlAsyncClient,
+            transports.GatewayControlGrpcAsyncIOTransport,
+            "grpc_asyncio",
+            grpc_helpers_async,
+        ),
+    ],
+)
+def test_gateway_control_client_create_channel_credentials_file(
+    client_class, transport_class, transport_name, grpc_helpers
+):
+    # Check the case credentials file is provided.
+    options = client_options.ClientOptions(credentials_file="credentials.json")
+
+    with mock.patch.object(transport_class, "__init__") as patched:
+        patched.return_value = None
+        client = client_class(client_options=options, transport=transport_name)
+        patched.assert_called_once_with(
+            credentials=None,
+            credentials_file="credentials.json",
+            host=client._DEFAULT_ENDPOINT_TEMPLATE.format(
+                UNIVERSE_DOMAIN=client._DEFAULT_UNIVERSE
+            ),
+            scopes=None,
+            client_cert_source_for_mtls=None,
+            quota_project_id=None,
+            client_info=transports.base.DEFAULT_CLIENT_INFO,
+            always_use_jwt_access=True,
+            api_audience=None,
+        )
+
+    # test that the credentials from file are saved and used as the credentials.
+    with mock.patch.object(
+        google.auth, "load_credentials_from_file", autospec=True
+    ) as load_creds, mock.patch.object(
+        google.auth, "default", autospec=True
+    ) as adc, mock.patch.object(
+        grpc_helpers, "create_channel"
+    ) as create_channel:
+        creds = ga_credentials.AnonymousCredentials()
+        file_creds = ga_credentials.AnonymousCredentials()
+        load_creds.return_value = (file_creds, None)
+        adc.return_value = (creds, None)
+        client = client_class(client_options=options, transport=transport_name)
+        create_channel.assert_called_with(
+            "connectgateway.googleapis.com:443",
+            credentials=file_creds,
+            credentials_file=None,
+            quota_project_id=None,
+            default_scopes=("https://www.googleapis.com/auth/cloud-platform",),
+            scopes=None,
+            default_host="connectgateway.googleapis.com",
+            ssl_credentials=None,
+            options=[
+                ("grpc.max_send_message_length", -1),
+                ("grpc.max_receive_message_length", -1),
+            ],
+        )
+
+
+@pytest.mark.parametrize(
+    "request_type",
+    [
+        control.GenerateCredentialsRequest,
+        dict,
+    ],
+)
+def test_generate_credentials(request_type, transport: str = "grpc"):
+    client = GatewayControlClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport=transport,
+    )
+
+    # Everything is optional in proto3 as far as the runtime is concerned,
+    # and we are mocking out the actual API, so just send an empty request.
+    request = request_type()
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.generate_credentials), "__call__"
+    ) as call:
+        # Designate an appropriate return value for the call.
+        call.return_value = control.GenerateCredentialsResponse(
+            kubeconfig=b"kubeconfig_blob",
+            endpoint="endpoint_value",
+        )
+        response = client.generate_credentials(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert len(call.mock_calls) == 1
+        _, args, _ = call.mock_calls[0]
+        request = control.GenerateCredentialsRequest()
+        assert args[0] == request
+
+    # Establish that the response is the type that we expect.
+    assert isinstance(response, control.GenerateCredentialsResponse)
+    assert response.kubeconfig == b"kubeconfig_blob"
+    assert response.endpoint == "endpoint_value"
+
+
+def test_generate_credentials_empty_call():
+    # This test is a coverage failsafe to make sure that totally empty calls,
+    # i.e. request == None and no flattened fields passed, work.
+    client = GatewayControlClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="grpc",
+    )
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.generate_credentials), "__call__"
+    ) as call:
+        call.return_value.name = (
+            "foo"  # operation_request.operation in compute client(s) expect a string.
+        )
+        client.generate_credentials()
+        call.assert_called()
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == control.GenerateCredentialsRequest()
+
+
+def test_generate_credentials_non_empty_request_with_auto_populated_field():
+    # This test is a coverage failsafe to make sure that UUID4 fields are
+    # automatically populated, according to AIP-4235, with non-empty requests.
+    client = GatewayControlClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="grpc",
+    )
+
+    # Populate all string fields in the request which are not UUID4
+    # since we want to check that UUID4 are populated automatically
+    # if they meet the requirements of AIP 4235.
+    request = control.GenerateCredentialsRequest(
+        name="name_value",
+        version="version_value",
+        kubernetes_namespace="kubernetes_namespace_value",
+    )
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.generate_credentials), "__call__"
+    ) as call:
+        call.return_value.name = (
+            "foo"  # operation_request.operation in compute client(s) expect a string.
+        )
+        client.generate_credentials(request=request)
+        call.assert_called()
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == control.GenerateCredentialsRequest(
+            name="name_value",
+            version="version_value",
+            kubernetes_namespace="kubernetes_namespace_value",
+        )
+
+
+def test_generate_credentials_use_cached_wrapped_rpc():
+    # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
+    # instead of constructing them on each call
+    with mock.patch("google.api_core.gapic_v1.method.wrap_method") as wrapper_fn:
+        client = GatewayControlClient(
+            credentials=ga_credentials.AnonymousCredentials(),
+            transport="grpc",
+        )
+
+        # Should wrap all calls on client creation
+        assert wrapper_fn.call_count > 0
+        wrapper_fn.reset_mock()
+
+        # Ensure method has been cached
+        assert (
+            client._transport.generate_credentials in client._transport._wrapped_methods
+        )
+
+        # Replace cached wrapped function with mock
+        mock_rpc = mock.Mock()
+        mock_rpc.return_value.name = (
+            "foo"  # operation_request.operation in compute client(s) expect a string.
+        )
+        client._transport._wrapped_methods[
+            client._transport.generate_credentials
+        ] = mock_rpc
+        request = {}
+        client.generate_credentials(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert mock_rpc.call_count == 1
+
+        client.generate_credentials(request)
+
+        # Establish that a new wrapper was not created for this call
+        assert wrapper_fn.call_count == 0
+        assert mock_rpc.call_count == 2
+
+
+@pytest.mark.asyncio
+async def test_generate_credentials_empty_call_async():
+    # This test is a coverage failsafe to make sure that totally empty calls,
+    # i.e. request == None and no flattened fields passed, work.
+    client = GatewayControlAsyncClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="grpc_asyncio",
+    )
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.generate_credentials), "__call__"
+    ) as call:
+        # Designate an appropriate return value for the call.
+        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
+            control.GenerateCredentialsResponse(
+                kubeconfig=b"kubeconfig_blob",
+                endpoint="endpoint_value",
+            )
+        )
+        response = await client.generate_credentials()
+        call.assert_called()
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == control.GenerateCredentialsRequest()
+
+
+@pytest.mark.asyncio
+async def test_generate_credentials_async_use_cached_wrapped_rpc(
+    transport: str = "grpc_asyncio",
+):
+    # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
+    # instead of constructing them on each call
+    with mock.patch("google.api_core.gapic_v1.method_async.wrap_method") as wrapper_fn:
+        client = GatewayControlAsyncClient(
+            credentials=ga_credentials.AnonymousCredentials(),
+            transport=transport,
+        )
+
+        # Should wrap all calls on client creation
+        assert wrapper_fn.call_count > 0
+        wrapper_fn.reset_mock()
+
+        # Ensure method has been cached
+        assert (
+            client._client._transport.generate_credentials
+            in client._client._transport._wrapped_methods
+        )
+
+        # Replace cached wrapped function with mock
+        mock_rpc = mock.AsyncMock()
+        mock_rpc.return_value = mock.Mock()
+        client._client._transport._wrapped_methods[
+            client._client._transport.generate_credentials
+        ] = mock_rpc
+
+        request = {}
+        await client.generate_credentials(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert mock_rpc.call_count == 1
+
+        await client.generate_credentials(request)
+
+        # Establish that a new wrapper was not created for this call
+        assert wrapper_fn.call_count == 0
+        assert mock_rpc.call_count == 2
+
+
+@pytest.mark.asyncio
+async def test_generate_credentials_async(
+    transport: str = "grpc_asyncio", request_type=control.GenerateCredentialsRequest
+):
+    client = GatewayControlAsyncClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport=transport,
+    )
+
+    # Everything is optional in proto3 as far as the runtime is concerned,
+    # and we are mocking out the actual API, so just send an empty request.
+    request = request_type()
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.generate_credentials), "__call__"
+    ) as call:
+        # Designate an appropriate return value for the call.
+        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
+            control.GenerateCredentialsResponse(
+                kubeconfig=b"kubeconfig_blob",
+                endpoint="endpoint_value",
+            )
+        )
+        response = await client.generate_credentials(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert len(call.mock_calls)
+        _, args, _ = call.mock_calls[0]
+        request = control.GenerateCredentialsRequest()
+        assert args[0] == request
+
+    # Establish that the response is the type that we expect.
+    assert isinstance(response, control.GenerateCredentialsResponse)
+    assert response.kubeconfig == b"kubeconfig_blob"
+    assert response.endpoint == "endpoint_value"
+
+
+@pytest.mark.asyncio
+async def test_generate_credentials_async_from_dict():
+    await test_generate_credentials_async(request_type=dict)
+
+
+def test_generate_credentials_field_headers():
+    client = GatewayControlClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+
+    # Any value that is part of the HTTP/1.1 URI should be sent as
+    # a field header. Set these to a non-empty value.
+    request = control.GenerateCredentialsRequest()
+
+    request.name = "name_value"
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.generate_credentials), "__call__"
+    ) as call:
+        call.return_value = control.GenerateCredentialsResponse()
+        client.generate_credentials(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert len(call.mock_calls) == 1
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == request
+
+    # Establish that the field header was sent.
+    _, _, kw = call.mock_calls[0]
+    assert (
+        "x-goog-request-params",
+        "name=name_value",
+    ) in kw["metadata"]
+
+
+@pytest.mark.asyncio
+async def test_generate_credentials_field_headers_async():
+    client = GatewayControlAsyncClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+
+    # Any value that is part of the HTTP/1.1 URI should be sent as
+    # a field header. Set these to a non-empty value.
+    request = control.GenerateCredentialsRequest()
+
+    request.name = "name_value"
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(
+        type(client.transport.generate_credentials), "__call__"
+    ) as call:
+        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
+            control.GenerateCredentialsResponse()
+        )
+        await client.generate_credentials(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert len(call.mock_calls)
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == request
+
+    # Establish that the field header was sent.
+    _, _, kw = call.mock_calls[0]
+    assert (
+        "x-goog-request-params",
+        "name=name_value",
+    ) in kw["metadata"]
+
+
+def test_credentials_transport_error():
+    # It is an error to provide credentials and a transport instance.
+    transport = transports.GatewayControlGrpcTransport(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+    with pytest.raises(ValueError):
+        client = GatewayControlClient(
+            credentials=ga_credentials.AnonymousCredentials(),
+            transport=transport,
+        )
+
+    # It is an error to provide a credentials file and a transport instance.
+    transport = transports.GatewayControlGrpcTransport(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+    with pytest.raises(ValueError):
+        client = GatewayControlClient(
+            client_options={"credentials_file": "credentials.json"},
+            transport=transport,
+        )
+
+    # It is an error to provide an api_key and a transport instance.
+    transport = transports.GatewayControlGrpcTransport(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+    options = client_options.ClientOptions()
+    options.api_key = "api_key"
+    with pytest.raises(ValueError):
+        client = GatewayControlClient(
+            client_options=options,
+            transport=transport,
+        )
+
+    # It is an error to provide an api_key and a credential.
+    options = client_options.ClientOptions()
+    options.api_key = "api_key"
+    with pytest.raises(ValueError):
+        client = GatewayControlClient(
+            client_options=options, credentials=ga_credentials.AnonymousCredentials()
+        )
+
+    # It is an error to provide scopes and a transport instance.
+    transport = transports.GatewayControlGrpcTransport(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+    with pytest.raises(ValueError):
+        client = GatewayControlClient(
+            client_options={"scopes": ["1", "2"]},
+            transport=transport,
+        )
+
+
+def test_transport_instance():
+    # A client may be instantiated with a custom transport instance.
+    transport = transports.GatewayControlGrpcTransport(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+    client = GatewayControlClient(transport=transport)
+    assert client.transport is transport
+
+
+def test_transport_get_channel():
+    # A client may be instantiated with a custom transport instance.
+    transport = transports.GatewayControlGrpcTransport(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+    channel = transport.grpc_channel
+    assert channel
+
+    transport = transports.GatewayControlGrpcAsyncIOTransport(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+    channel = transport.grpc_channel
+    assert channel
+
+
+@pytest.mark.parametrize(
+    "transport_class",
+    [
+        transports.GatewayControlGrpcTransport,
+        transports.GatewayControlGrpcAsyncIOTransport,
+    ],
+)
+def test_transport_adc(transport_class):
+    # Test default credentials are used if not provided.
+    with mock.patch.object(google.auth, "default") as adc:
+        adc.return_value = (ga_credentials.AnonymousCredentials(), None)
+        transport_class()
+        adc.assert_called_once()
+
+
+@pytest.mark.parametrize(
+    "transport_name",
+    [
+        "grpc",
+    ],
+)
+def test_transport_kind(transport_name):
+    transport = GatewayControlClient.get_transport_class(transport_name)(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+    assert transport.kind == transport_name
+
+
+def test_transport_grpc_default():
+    # A client should use the gRPC transport by default.
+    client = GatewayControlClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+    assert isinstance(
+        client.transport,
+        transports.GatewayControlGrpcTransport,
+    )
+
+
+def test_gateway_control_base_transport_error():
+    # Passing both a credentials object and credentials_file should raise an error
+    with pytest.raises(core_exceptions.DuplicateCredentialArgs):
+        transport = transports.GatewayControlTransport(
+            credentials=ga_credentials.AnonymousCredentials(),
+            credentials_file="credentials.json",
+        )
+
+
+def test_gateway_control_base_transport():
+    # Instantiate the base transport.
+    with mock.patch(
+        "google.cloud.gkeconnect.gateway_v1beta1.services.gateway_control.transports.GatewayControlTransport.__init__"
+    ) as Transport:
+        Transport.return_value = None
+        transport = transports.GatewayControlTransport(
+            credentials=ga_credentials.AnonymousCredentials(),
+        )
+
+    # Every method on the transport should just blindly
+    # raise NotImplementedError.
+    methods = ("generate_credentials",)
+    for method in methods:
+        with pytest.raises(NotImplementedError):
+            getattr(transport, method)(request=object())
+
+    with pytest.raises(NotImplementedError):
+        transport.close()
+
+    # Catch all for all remaining methods and properties
+    remainder = [
+        "kind",
+    ]
+    for r in remainder:
+        with pytest.raises(NotImplementedError):
+            getattr(transport, r)()
+
+
+def test_gateway_control_base_transport_with_credentials_file():
+    # Instantiate the base transport with a credentials file
+    with mock.patch.object(
+        google.auth, "load_credentials_from_file", autospec=True
+    ) as load_creds, mock.patch(
+        "google.cloud.gkeconnect.gateway_v1beta1.services.gateway_control.transports.GatewayControlTransport._prep_wrapped_messages"
+    ) as Transport:
+        Transport.return_value = None
+        load_creds.return_value = (ga_credentials.AnonymousCredentials(), None)
+        transport = transports.GatewayControlTransport(
+            credentials_file="credentials.json",
+            quota_project_id="octopus",
+        )
+        load_creds.assert_called_once_with(
+            "credentials.json",
+            scopes=None,
+            default_scopes=("https://www.googleapis.com/auth/cloud-platform",),
+            quota_project_id="octopus",
+        )
+
+
+def test_gateway_control_base_transport_with_adc():
+    # Test the default credentials are used if credentials and credentials_file are None.
+    with mock.patch.object(google.auth, "default", autospec=True) as adc, mock.patch(
+        "google.cloud.gkeconnect.gateway_v1beta1.services.gateway_control.transports.GatewayControlTransport._prep_wrapped_messages"
+    ) as Transport:
+        Transport.return_value = None
+        adc.return_value = (ga_credentials.AnonymousCredentials(), None)
+        transport = transports.GatewayControlTransport()
+        adc.assert_called_once()
+
+
+def test_gateway_control_auth_adc():
+    # If no credentials are provided, we should use ADC credentials.
+    with mock.patch.object(google.auth, "default", autospec=True) as adc:
+        adc.return_value = (ga_credentials.AnonymousCredentials(), None)
+        GatewayControlClient()
+        adc.assert_called_once_with(
+            scopes=None,
+            default_scopes=("https://www.googleapis.com/auth/cloud-platform",),
+            quota_project_id=None,
+        )
+
+
+@pytest.mark.parametrize(
+    "transport_class",
+    [
+        transports.GatewayControlGrpcTransport,
+        transports.GatewayControlGrpcAsyncIOTransport,
+    ],
+)
+def test_gateway_control_transport_auth_adc(transport_class):
+    # If credentials and host are not provided, the transport class should use
+    # ADC credentials.
+    with mock.patch.object(google.auth, "default", autospec=True) as adc:
+        adc.return_value = (ga_credentials.AnonymousCredentials(), None)
+        transport_class(quota_project_id="octopus", scopes=["1", "2"])
+        adc.assert_called_once_with(
+            scopes=["1", "2"],
+            default_scopes=("https://www.googleapis.com/auth/cloud-platform",),
+            quota_project_id="octopus",
+        )
+
+
+@pytest.mark.parametrize(
+    "transport_class",
+    [
+        transports.GatewayControlGrpcTransport,
+        transports.GatewayControlGrpcAsyncIOTransport,
+    ],
+)
+def test_gateway_control_transport_auth_gdch_credentials(transport_class):
+    host = "https://language.com"
+    api_audience_tests = [None, "https://language2.com"]
+    api_audience_expect = [host, "https://language2.com"]
+    for t, e in zip(api_audience_tests, api_audience_expect):
+        with mock.patch.object(google.auth, "default", autospec=True) as adc:
+            gdch_mock = mock.MagicMock()
+            type(gdch_mock).with_gdch_audience = mock.PropertyMock(
+                return_value=gdch_mock
+            )
+            adc.return_value = (gdch_mock, None)
+            transport_class(host=host, api_audience=t)
+            gdch_mock.with_gdch_audience.assert_called_once_with(e)
+
+
+@pytest.mark.parametrize(
+    "transport_class,grpc_helpers",
+    [
+        (transports.GatewayControlGrpcTransport, grpc_helpers),
+        (transports.GatewayControlGrpcAsyncIOTransport, grpc_helpers_async),
+    ],
+)
+def test_gateway_control_transport_create_channel(transport_class, grpc_helpers):
+    # If credentials and host are not provided, the transport class should use
+    # ADC credentials.
+    with mock.patch.object(
+        google.auth, "default", autospec=True
+    ) as adc, mock.patch.object(
+        grpc_helpers, "create_channel", autospec=True
+    ) as create_channel:
+        creds = ga_credentials.AnonymousCredentials()
+        adc.return_value = (creds, None)
+        transport_class(quota_project_id="octopus", scopes=["1", "2"])
+
+        create_channel.assert_called_with(
+            "connectgateway.googleapis.com:443",
+            credentials=creds,
+            credentials_file=None,
+            quota_project_id="octopus",
+            default_scopes=("https://www.googleapis.com/auth/cloud-platform",),
+            scopes=["1", "2"],
+            default_host="connectgateway.googleapis.com",
+            ssl_credentials=None,
+            options=[
+                ("grpc.max_send_message_length", -1),
+                ("grpc.max_receive_message_length", -1),
+            ],
+        )
+
+
+@pytest.mark.parametrize(
+    "transport_class",
+    [
+        transports.GatewayControlGrpcTransport,
+        transports.GatewayControlGrpcAsyncIOTransport,
+    ],
+)
+def test_gateway_control_grpc_transport_client_cert_source_for_mtls(transport_class):
+    cred = ga_credentials.AnonymousCredentials()
+
+    # Check ssl_channel_credentials is used if provided.
+    with mock.patch.object(transport_class, "create_channel") as mock_create_channel:
+        mock_ssl_channel_creds = mock.Mock()
+        transport_class(
+            host="squid.clam.whelk",
+            credentials=cred,
+            ssl_channel_credentials=mock_ssl_channel_creds,
+        )
+        mock_create_channel.assert_called_once_with(
+            "squid.clam.whelk:443",
+            credentials=cred,
+            credentials_file=None,
+            scopes=None,
+            ssl_credentials=mock_ssl_channel_creds,
+            quota_project_id=None,
+            options=[
+                ("grpc.max_send_message_length", -1),
+                ("grpc.max_receive_message_length", -1),
+            ],
+        )
+
+    # Check if ssl_channel_credentials is not provided, then client_cert_source_for_mtls
+    # is used.
+    with mock.patch.object(transport_class, "create_channel", return_value=mock.Mock()):
+        with mock.patch("grpc.ssl_channel_credentials") as mock_ssl_cred:
+            transport_class(
+                credentials=cred,
+                client_cert_source_for_mtls=client_cert_source_callback,
+            )
+            expected_cert, expected_key = client_cert_source_callback()
+            mock_ssl_cred.assert_called_once_with(
+                certificate_chain=expected_cert, private_key=expected_key
+            )
+
+
+@pytest.mark.parametrize(
+    "transport_name",
+    [
+        "grpc",
+        "grpc_asyncio",
+    ],
+)
+def test_gateway_control_host_no_port(transport_name):
+    client = GatewayControlClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        client_options=client_options.ClientOptions(
+            api_endpoint="connectgateway.googleapis.com"
+        ),
+        transport=transport_name,
+    )
+    assert client.transport._host == ("connectgateway.googleapis.com:443")
+
+
+@pytest.mark.parametrize(
+    "transport_name",
+    [
+        "grpc",
+        "grpc_asyncio",
+    ],
+)
+def test_gateway_control_host_with_port(transport_name):
+    client = GatewayControlClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        client_options=client_options.ClientOptions(
+            api_endpoint="connectgateway.googleapis.com:8000"
+        ),
+        transport=transport_name,
+    )
+    assert client.transport._host == ("connectgateway.googleapis.com:8000")
+
+
+def test_gateway_control_grpc_transport_channel():
+    channel = grpc.secure_channel("http://localhost/", grpc.local_channel_credentials())
+
+    # Check that channel is used if provided.
+    transport = transports.GatewayControlGrpcTransport(
+        host="squid.clam.whelk",
+        channel=channel,
+    )
+    assert transport.grpc_channel == channel
+    assert transport._host == "squid.clam.whelk:443"
+    assert transport._ssl_channel_credentials == None
+
+
+def test_gateway_control_grpc_asyncio_transport_channel():
+    channel = aio.secure_channel("http://localhost/", grpc.local_channel_credentials())
+
+    # Check that channel is used if provided.
+    transport = transports.GatewayControlGrpcAsyncIOTransport(
+        host="squid.clam.whelk",
+        channel=channel,
+    )
+    assert transport.grpc_channel == channel
+    assert transport._host == "squid.clam.whelk:443"
+    assert transport._ssl_channel_credentials == None
+
+
+# Remove this test when deprecated arguments (api_mtls_endpoint, client_cert_source) are
+# removed from grpc/grpc_asyncio transport constructor.
+@pytest.mark.parametrize(
+    "transport_class",
+    [
+        transports.GatewayControlGrpcTransport,
+        transports.GatewayControlGrpcAsyncIOTransport,
+    ],
+)
+def test_gateway_control_transport_channel_mtls_with_client_cert_source(
+    transport_class,
+):
+    with mock.patch(
+        "grpc.ssl_channel_credentials", autospec=True
+    ) as grpc_ssl_channel_cred:
+        with mock.patch.object(
+            transport_class, "create_channel"
+        ) as grpc_create_channel:
+            mock_ssl_cred = mock.Mock()
+            grpc_ssl_channel_cred.return_value = mock_ssl_cred
+
+            mock_grpc_channel = mock.Mock()
+            grpc_create_channel.return_value = mock_grpc_channel
+
+            cred = ga_credentials.AnonymousCredentials()
+            with pytest.warns(DeprecationWarning):
+                with mock.patch.object(google.auth, "default") as adc:
+                    adc.return_value = (cred, None)
+                    transport = transport_class(
+                        host="squid.clam.whelk",
+                        api_mtls_endpoint="mtls.squid.clam.whelk",
+                        client_cert_source=client_cert_source_callback,
+                    )
+                    adc.assert_called_once()
+
+            grpc_ssl_channel_cred.assert_called_once_with(
+                certificate_chain=b"cert bytes", private_key=b"key bytes"
+            )
+            grpc_create_channel.assert_called_once_with(
+                "mtls.squid.clam.whelk:443",
+                credentials=cred,
+                credentials_file=None,
+                scopes=None,
+                ssl_credentials=mock_ssl_cred,
+                quota_project_id=None,
+                options=[
+                    ("grpc.max_send_message_length", -1),
+                    ("grpc.max_receive_message_length", -1),
+                ],
+            )
+            assert transport.grpc_channel == mock_grpc_channel
+            assert transport._ssl_channel_credentials == mock_ssl_cred
+
+
+# Remove this test when deprecated arguments (api_mtls_endpoint, client_cert_source) are
+# removed from grpc/grpc_asyncio transport constructor.
+@pytest.mark.parametrize(
+    "transport_class",
+    [
+        transports.GatewayControlGrpcTransport,
+        transports.GatewayControlGrpcAsyncIOTransport,
+    ],
+)
+def test_gateway_control_transport_channel_mtls_with_adc(transport_class):
+    mock_ssl_cred = mock.Mock()
+    with mock.patch.multiple(
+        "google.auth.transport.grpc.SslCredentials",
+        __init__=mock.Mock(return_value=None),
+        ssl_credentials=mock.PropertyMock(return_value=mock_ssl_cred),
+    ):
+        with mock.patch.object(
+            transport_class, "create_channel"
+        ) as grpc_create_channel:
+            mock_grpc_channel = mock.Mock()
+            grpc_create_channel.return_value = mock_grpc_channel
+            mock_cred = mock.Mock()
+
+            with pytest.warns(DeprecationWarning):
+                transport = transport_class(
+                    host="squid.clam.whelk",
+                    credentials=mock_cred,
+                    api_mtls_endpoint="mtls.squid.clam.whelk",
+                    client_cert_source=None,
+                )
+
+            grpc_create_channel.assert_called_once_with(
+                "mtls.squid.clam.whelk:443",
+                credentials=mock_cred,
+                credentials_file=None,
+                scopes=None,
+                ssl_credentials=mock_ssl_cred,
+                quota_project_id=None,
+                options=[
+                    ("grpc.max_send_message_length", -1),
+                    ("grpc.max_receive_message_length", -1),
+                ],
+            )
+            assert transport.grpc_channel == mock_grpc_channel
+
+
+def test_common_billing_account_path():
+    billing_account = "squid"
+    expected = "billingAccounts/{billing_account}".format(
+        billing_account=billing_account,
+    )
+    actual = GatewayControlClient.common_billing_account_path(billing_account)
+    assert expected == actual
+
+
+def test_parse_common_billing_account_path():
+    expected = {
+        "billing_account": "clam",
+    }
+    path = GatewayControlClient.common_billing_account_path(**expected)
+
+    # Check that the path construction is reversible.
+    actual = GatewayControlClient.parse_common_billing_account_path(path)
+    assert expected == actual
+
+
+def test_common_folder_path():
+    folder = "whelk"
+    expected = "folders/{folder}".format(
+        folder=folder,
+    )
+    actual = GatewayControlClient.common_folder_path(folder)
+    assert expected == actual
+
+
+def test_parse_common_folder_path():
+    expected = {
+        "folder": "octopus",
+    }
+    path = GatewayControlClient.common_folder_path(**expected)
+
+    # Check that the path construction is reversible.
+    actual = GatewayControlClient.parse_common_folder_path(path)
+    assert expected == actual
+
+
+def test_common_organization_path():
+    organization = "oyster"
+    expected = "organizations/{organization}".format(
+        organization=organization,
+    )
+    actual = GatewayControlClient.common_organization_path(organization)
+    assert expected == actual
+
+
+def test_parse_common_organization_path():
+    expected = {
+        "organization": "nudibranch",
+    }
+    path = GatewayControlClient.common_organization_path(**expected)
+
+    # Check that the path construction is reversible.
+    actual = GatewayControlClient.parse_common_organization_path(path)
+    assert expected == actual
+
+
+def test_common_project_path():
+    project = "cuttlefish"
+    expected = "projects/{project}".format(
+        project=project,
+    )
+    actual = GatewayControlClient.common_project_path(project)
+    assert expected == actual
+
+
+def test_parse_common_project_path():
+    expected = {
+        "project": "mussel",
+    }
+    path = GatewayControlClient.common_project_path(**expected)
+
+    # Check that the path construction is reversible.
+    actual = GatewayControlClient.parse_common_project_path(path)
+    assert expected == actual
+
+
+def test_common_location_path():
+    project = "winkle"
+    location = "nautilus"
+    expected = "projects/{project}/locations/{location}".format(
+        project=project,
+        location=location,
+    )
+    actual = GatewayControlClient.common_location_path(project, location)
+    assert expected == actual
+
+
+def test_parse_common_location_path():
+    expected = {
+        "project": "scallop",
+        "location": "abalone",
+    }
+    path = GatewayControlClient.common_location_path(**expected)
+
+    # Check that the path construction is reversible.
+    actual = GatewayControlClient.parse_common_location_path(path)
+    assert expected == actual
+
+
+def test_client_with_default_client_info():
+    client_info = gapic_v1.client_info.ClientInfo()
+
+    with mock.patch.object(
+        transports.GatewayControlTransport, "_prep_wrapped_messages"
+    ) as prep:
+        client = GatewayControlClient(
+            credentials=ga_credentials.AnonymousCredentials(),
+            client_info=client_info,
+        )
+        prep.assert_called_once_with(client_info)
+
+    with mock.patch.object(
+        transports.GatewayControlTransport, "_prep_wrapped_messages"
+    ) as prep:
+        transport_class = GatewayControlClient.get_transport_class()
+        transport = transport_class(
+            credentials=ga_credentials.AnonymousCredentials(),
+            client_info=client_info,
+        )
+        prep.assert_called_once_with(client_info)
+
+
+@pytest.mark.asyncio
+async def test_transport_close_async():
+    client = GatewayControlAsyncClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="grpc_asyncio",
+    )
+    with mock.patch.object(
+        type(getattr(client.transport, "grpc_channel")), "close"
+    ) as close:
+        async with client:
+            close.assert_not_called()
+        close.assert_called_once()
+
+
+def test_transport_close():
+    transports = {
+        "grpc": "_grpc_channel",
+    }
+
+    for transport, close_name in transports.items():
+        client = GatewayControlClient(
+            credentials=ga_credentials.AnonymousCredentials(), transport=transport
+        )
+        with mock.patch.object(
+            type(getattr(client.transport, close_name)), "close"
+        ) as close:
+            with client:
+                close.assert_not_called()
+            close.assert_called_once()
+
+
+def test_client_ctx():
+    transports = [
+        "grpc",
+    ]
+    for transport in transports:
+        client = GatewayControlClient(
+            credentials=ga_credentials.AnonymousCredentials(), transport=transport
+        )
+        # Test client calls underlying transport.
+        with mock.patch.object(type(client.transport), "close") as close:
+            close.assert_not_called()
+            with client:
+                pass
+            close.assert_called()
+
+
+@pytest.mark.parametrize(
+    "client_class,transport_class",
+    [
+        (GatewayControlClient, transports.GatewayControlGrpcTransport),
+        (GatewayControlAsyncClient, transports.GatewayControlGrpcAsyncIOTransport),
+    ],
+)
+def test_api_key_credentials(client_class, transport_class):
+    with mock.patch.object(
+        google.auth._default, "get_api_key_credentials", create=True
+    ) as get_api_key_credentials:
+        mock_cred = mock.Mock()
+        get_api_key_credentials.return_value = mock_cred
+        options = client_options.ClientOptions()
+        options.api_key = "api_key"
+        with mock.patch.object(transport_class, "__init__") as patched:
+            patched.return_value = None
+            client = client_class(client_options=options)
+            patched.assert_called_once_with(
+                credentials=mock_cred,
+                credentials_file=None,
+                host=client._DEFAULT_ENDPOINT_TEMPLATE.format(
+                    UNIVERSE_DOMAIN=client._DEFAULT_UNIVERSE
+                ),
+                scopes=None,
+                client_cert_source_for_mtls=None,
+                quota_project_id=None,
+                client_info=transports.base.DEFAULT_CLIENT_INFO,
+                always_use_jwt_access=True,
+                api_audience=None,
+            )
diff --git a/packages/google-cloud-recaptcha-enterprise/CHANGELOG.md b/packages/google-cloud-recaptcha-enterprise/CHANGELOG.md
index cef8c7414214..5503697c10fa 100644
--- a/packages/google-cloud-recaptcha-enterprise/CHANGELOG.md
+++ b/packages/google-cloud-recaptcha-enterprise/CHANGELOG.md
@@ -1,5 +1,26 @@
 # Changelog
 
+## [1.22.1](https://github.com/googleapis/google-cloud-python/compare/google-cloud-recaptcha-enterprise-v1.22.0...google-cloud-recaptcha-enterprise-v1.22.1) (2024-09-03)
+
+
+### Documentation
+
+* minor doc fixes ([7e40c8c](https://github.com/googleapis/google-cloud-python/commit/7e40c8c40039e0c01ef9a8bfea8804edfee48d70))
+
+## [1.22.0](https://github.com/googleapis/google-cloud-python/compare/google-cloud-recaptcha-enterprise-v1.21.2...google-cloud-recaptcha-enterprise-v1.22.0) (2024-08-22)
+
+
+### Features
+
+* add `express_settings` to `Key` ([0b90478](https://github.com/googleapis/google-cloud-python/commit/0b90478bb70be96b304397fc433d2dbaf0160d30))
+* add AddIpOverride RPC ([0b90478](https://github.com/googleapis/google-cloud-python/commit/0b90478bb70be96b304397fc433d2dbaf0160d30))
+
+
+### Documentation
+
+* clarify `Event.express` field ([0b90478](https://github.com/googleapis/google-cloud-python/commit/0b90478bb70be96b304397fc433d2dbaf0160d30))
+* fix billing, quota, and usecase links ([0b90478](https://github.com/googleapis/google-cloud-python/commit/0b90478bb70be96b304397fc433d2dbaf0160d30))
+
 ## [1.21.2](https://github.com/googleapis/google-cloud-python/compare/google-cloud-recaptcha-enterprise-v1.21.1...google-cloud-recaptcha-enterprise-v1.21.2) (2024-07-30)
 
 
diff --git a/packages/google-cloud-recaptcha-enterprise/google/cloud/recaptchaenterprise/__init__.py b/packages/google-cloud-recaptcha-enterprise/google/cloud/recaptchaenterprise/__init__.py
index f01824e24d20..74085402cea4 100644
--- a/packages/google-cloud-recaptcha-enterprise/google/cloud/recaptchaenterprise/__init__.py
+++ b/packages/google-cloud-recaptcha-enterprise/google/cloud/recaptchaenterprise/__init__.py
@@ -27,11 +27,14 @@
 from google.cloud.recaptchaenterprise_v1.types.recaptchaenterprise import (
     AccountDefenderAssessment,
     AccountVerificationInfo,
+    AddIpOverrideRequest,
+    AddIpOverrideResponse,
     AndroidKeySettings,
     AnnotateAssessmentRequest,
     AnnotateAssessmentResponse,
     AppleDeveloperId,
     Assessment,
+    AssessmentEnvironment,
     ChallengeMetrics,
     CreateAssessmentRequest,
     CreateFirewallPolicyRequest,
@@ -40,6 +43,7 @@
     DeleteKeyRequest,
     EndpointVerificationInfo,
     Event,
+    ExpressKeySettings,
     FirewallAction,
     FirewallPolicy,
     FirewallPolicyAssessment,
@@ -49,6 +53,7 @@
     GetKeyRequest,
     GetMetricsRequest,
     IOSKeySettings,
+    IpOverrideData,
     Key,
     ListFirewallPoliciesRequest,
     ListFirewallPoliciesResponse,
@@ -91,11 +96,14 @@
     "RecaptchaEnterpriseServiceAsyncClient",
     "AccountDefenderAssessment",
     "AccountVerificationInfo",
+    "AddIpOverrideRequest",
+    "AddIpOverrideResponse",
     "AndroidKeySettings",
     "AnnotateAssessmentRequest",
     "AnnotateAssessmentResponse",
     "AppleDeveloperId",
     "Assessment",
+    "AssessmentEnvironment",
     "ChallengeMetrics",
     "CreateAssessmentRequest",
     "CreateFirewallPolicyRequest",
@@ -104,6 +112,7 @@
     "DeleteKeyRequest",
     "EndpointVerificationInfo",
     "Event",
+    "ExpressKeySettings",
     "FirewallAction",
     "FirewallPolicy",
     "FirewallPolicyAssessment",
@@ -113,6 +122,7 @@
     "GetKeyRequest",
     "GetMetricsRequest",
     "IOSKeySettings",
+    "IpOverrideData",
     "Key",
     "ListFirewallPoliciesRequest",
     "ListFirewallPoliciesResponse",
diff --git a/packages/google-cloud-recaptcha-enterprise/google/cloud/recaptchaenterprise/gapic_version.py b/packages/google-cloud-recaptcha-enterprise/google/cloud/recaptchaenterprise/gapic_version.py
index 558c8aab67c5..bcb1d2f54b4a 100644
--- a/packages/google-cloud-recaptcha-enterprise/google/cloud/recaptchaenterprise/gapic_version.py
+++ b/packages/google-cloud-recaptcha-enterprise/google/cloud/recaptchaenterprise/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "0.0.0"  # {x-release-please-version}
+__version__ = "1.22.1"  # {x-release-please-version}
diff --git a/packages/google-cloud-recaptcha-enterprise/google/cloud/recaptchaenterprise_v1/__init__.py b/packages/google-cloud-recaptcha-enterprise/google/cloud/recaptchaenterprise_v1/__init__.py
index 32e4af3d140c..872b50ab387a 100644
--- a/packages/google-cloud-recaptcha-enterprise/google/cloud/recaptchaenterprise_v1/__init__.py
+++ b/packages/google-cloud-recaptcha-enterprise/google/cloud/recaptchaenterprise_v1/__init__.py
@@ -25,11 +25,14 @@
 from .types.recaptchaenterprise import (
     AccountDefenderAssessment,
     AccountVerificationInfo,
+    AddIpOverrideRequest,
+    AddIpOverrideResponse,
     AndroidKeySettings,
     AnnotateAssessmentRequest,
     AnnotateAssessmentResponse,
     AppleDeveloperId,
     Assessment,
+    AssessmentEnvironment,
     ChallengeMetrics,
     CreateAssessmentRequest,
     CreateFirewallPolicyRequest,
@@ -38,6 +41,7 @@
     DeleteKeyRequest,
     EndpointVerificationInfo,
     Event,
+    ExpressKeySettings,
     FirewallAction,
     FirewallPolicy,
     FirewallPolicyAssessment,
@@ -47,6 +51,7 @@
     GetKeyRequest,
     GetMetricsRequest,
     IOSKeySettings,
+    IpOverrideData,
     Key,
     ListFirewallPoliciesRequest,
     ListFirewallPoliciesResponse,
@@ -88,11 +93,14 @@
     "RecaptchaEnterpriseServiceAsyncClient",
     "AccountDefenderAssessment",
     "AccountVerificationInfo",
+    "AddIpOverrideRequest",
+    "AddIpOverrideResponse",
     "AndroidKeySettings",
     "AnnotateAssessmentRequest",
     "AnnotateAssessmentResponse",
     "AppleDeveloperId",
     "Assessment",
+    "AssessmentEnvironment",
     "ChallengeMetrics",
     "CreateAssessmentRequest",
     "CreateFirewallPolicyRequest",
@@ -101,6 +109,7 @@
     "DeleteKeyRequest",
     "EndpointVerificationInfo",
     "Event",
+    "ExpressKeySettings",
     "FirewallAction",
     "FirewallPolicy",
     "FirewallPolicyAssessment",
@@ -110,6 +119,7 @@
     "GetKeyRequest",
     "GetMetricsRequest",
     "IOSKeySettings",
+    "IpOverrideData",
     "Key",
     "ListFirewallPoliciesRequest",
     "ListFirewallPoliciesResponse",
diff --git a/packages/google-cloud-recaptcha-enterprise/google/cloud/recaptchaenterprise_v1/gapic_metadata.json b/packages/google-cloud-recaptcha-enterprise/google/cloud/recaptchaenterprise_v1/gapic_metadata.json
index dda75c44f68f..8722f66f3086 100644
--- a/packages/google-cloud-recaptcha-enterprise/google/cloud/recaptchaenterprise_v1/gapic_metadata.json
+++ b/packages/google-cloud-recaptcha-enterprise/google/cloud/recaptchaenterprise_v1/gapic_metadata.json
@@ -10,6 +10,11 @@
         "grpc": {
           "libraryClient": "RecaptchaEnterpriseServiceClient",
           "rpcs": {
+            "AddIpOverride": {
+              "methods": [
+                "add_ip_override"
+              ]
+            },
             "AnnotateAssessment": {
               "methods": [
                 "annotate_assessment"
@@ -110,6 +115,11 @@
         "grpc-async": {
           "libraryClient": "RecaptchaEnterpriseServiceAsyncClient",
           "rpcs": {
+            "AddIpOverride": {
+              "methods": [
+                "add_ip_override"
+              ]
+            },
             "AnnotateAssessment": {
               "methods": [
                 "annotate_assessment"
diff --git a/packages/google-cloud-recaptcha-enterprise/google/cloud/recaptchaenterprise_v1/gapic_version.py b/packages/google-cloud-recaptcha-enterprise/google/cloud/recaptchaenterprise_v1/gapic_version.py
index 558c8aab67c5..bcb1d2f54b4a 100644
--- a/packages/google-cloud-recaptcha-enterprise/google/cloud/recaptchaenterprise_v1/gapic_version.py
+++ b/packages/google-cloud-recaptcha-enterprise/google/cloud/recaptchaenterprise_v1/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "0.0.0"  # {x-release-please-version}
+__version__ = "1.22.1"  # {x-release-please-version}
diff --git a/packages/google-cloud-recaptcha-enterprise/google/cloud/recaptchaenterprise_v1/services/recaptcha_enterprise_service/async_client.py b/packages/google-cloud-recaptcha-enterprise/google/cloud/recaptchaenterprise_v1/services/recaptcha_enterprise_service/async_client.py
index ca4ff9f14e83..1ae940ad5ff1 100644
--- a/packages/google-cloud-recaptcha-enterprise/google/cloud/recaptchaenterprise_v1/services/recaptcha_enterprise_service/async_client.py
+++ b/packages/google-cloud-recaptcha-enterprise/google/cloud/recaptchaenterprise_v1/services/recaptcha_enterprise_service/async_client.py
@@ -344,7 +344,7 @@ async def sample_create_assessment():
                 message.
             parent (:class:`str`):
                 Required. The name of the project in which the
-                assessment will be created, in the format
+                assessment is created, in the format
                 ``projects/{project}``.
 
                 This corresponds to the ``parent`` field
@@ -471,7 +471,7 @@ async def sample_annotate_assessment():
                 on the ``request`` instance; if ``request`` is provided, this
                 should not be set.
             annotation (:class:`google.cloud.recaptchaenterprise_v1.types.AnnotateAssessmentRequest.Annotation`):
-                Optional. The annotation that will be
+                Optional. The annotation that is
                 assigned to the Event. This field can be
                 left empty to provide reasons that apply
                 to an event without concluding whether
@@ -587,8 +587,8 @@ async def sample_create_key():
             request (Optional[Union[google.cloud.recaptchaenterprise_v1.types.CreateKeyRequest, dict]]):
                 The request object. The create key request message.
             parent (:class:`str`):
-                Required. The name of the project in which the key will
-                be created, in the format ``projects/{project}``.
+                Required. The name of the project in which the key is
+                created, in the format ``projects/{project}``.
 
                 This corresponds to the ``parent`` field
                 on the ``request`` instance; if ``request`` is provided, this
@@ -705,8 +705,7 @@ async def sample_list_keys():
                 The request object. The list keys request message.
             parent (:class:`str`):
                 Required. The name of the project that contains the keys
-                that will be listed, in the format
-                ``projects/{project}``.
+                that are listed, in the format ``projects/{project}``.
 
                 This corresponds to the ``parent`` field
                 on the ``request`` instance; if ``request`` is provided, this
@@ -1052,7 +1051,7 @@ async def sample_update_key():
             update_mask (:class:`google.protobuf.field_mask_pb2.FieldMask`):
                 Optional. The mask to control which
                 fields of the key get updated. If the
-                mask is not present, all fields will be
+                mask is not present, all fields are
                 updated.
 
                 This corresponds to the ``update_mask`` field
@@ -1302,6 +1301,129 @@ async def sample_migrate_key():
         # Done; return the response.
         return response
 
+    async def add_ip_override(
+        self,
+        request: Optional[Union[recaptchaenterprise.AddIpOverrideRequest, dict]] = None,
+        *,
+        name: Optional[str] = None,
+        ip_override_data: Optional[recaptchaenterprise.IpOverrideData] = None,
+        retry: OptionalRetry = gapic_v1.method.DEFAULT,
+        timeout: Union[float, object] = gapic_v1.method.DEFAULT,
+        metadata: Sequence[Tuple[str, str]] = (),
+    ) -> recaptchaenterprise.AddIpOverrideResponse:
+        r"""Adds an IP override to a key. The following restrictions hold:
+
+        -  The maximum number of IP overrides per key is 100.
+        -  For any conflict (such as IP already exists or IP part of an
+           existing IP range), an error is returned.
+
+        .. code-block:: python
+
+            # This snippet has been automatically generated and should be regarded as a
+            # code template only.
+            # It will require modifications to work:
+            # - It may require correct/in-range values for request initialization.
+            # - It may require specifying regional endpoints when creating the service
+            #   client as shown in:
+            #   https://googleapis.dev/python/google-api-core/latest/client_options.html
+            from google.cloud import recaptchaenterprise_v1
+
+            async def sample_add_ip_override():
+                # Create a client
+                client = recaptchaenterprise_v1.RecaptchaEnterpriseServiceAsyncClient()
+
+                # Initialize request argument(s)
+                ip_override_data = recaptchaenterprise_v1.IpOverrideData()
+                ip_override_data.ip = "ip_value"
+                ip_override_data.override_type = "ALLOW"
+
+                request = recaptchaenterprise_v1.AddIpOverrideRequest(
+                    name="name_value",
+                    ip_override_data=ip_override_data,
+                )
+
+                # Make the request
+                response = await client.add_ip_override(request=request)
+
+                # Handle the response
+                print(response)
+
+        Args:
+            request (Optional[Union[google.cloud.recaptchaenterprise_v1.types.AddIpOverrideRequest, dict]]):
+                The request object. The AddIpOverride request message.
+            name (:class:`str`):
+                Required. The name of the key to which the IP override
+                is added, in the format
+                ``projects/{project}/keys/{key}``.
+
+                This corresponds to the ``name`` field
+                on the ``request`` instance; if ``request`` is provided, this
+                should not be set.
+            ip_override_data (:class:`google.cloud.recaptchaenterprise_v1.types.IpOverrideData`):
+                Required. IP override added to the
+                key.
+
+                This corresponds to the ``ip_override_data`` field
+                on the ``request`` instance; if ``request`` is provided, this
+                should not be set.
+            retry (google.api_core.retry_async.AsyncRetry): Designation of what errors, if any,
+                should be retried.
+            timeout (float): The timeout for this request.
+            metadata (Sequence[Tuple[str, str]]): Strings which should be
+                sent along with the request as metadata.
+
+        Returns:
+            google.cloud.recaptchaenterprise_v1.types.AddIpOverrideResponse:
+                Response for AddIpOverride.
+        """
+        # Create or coerce a protobuf request object.
+        # - Quick check: If we got a request object, we should *not* have
+        #   gotten any keyword arguments that map to the request.
+        has_flattened_params = any([name, ip_override_data])
+        if request is not None and has_flattened_params:
+            raise ValueError(
+                "If the `request` argument is set, then none of "
+                "the individual field arguments should be set."
+            )
+
+        # - Use the request object if provided (there's no risk of modifying the input as
+        #   there are no flattened fields), or create one.
+        if not isinstance(request, recaptchaenterprise.AddIpOverrideRequest):
+            request = recaptchaenterprise.AddIpOverrideRequest(request)
+
+        # If we have keyword arguments corresponding to fields on the
+        # request, apply these.
+        if name is not None:
+            request.name = name
+        if ip_override_data is not None:
+            request.ip_override_data = ip_override_data
+
+        # Wrap the RPC method; this adds retry and timeout information,
+        # and friendly error handling.
+        rpc = self._client._transport._wrapped_methods[
+            self._client._transport.add_ip_override
+        ]
+
+        # Certain fields should be provided within the metadata header;
+        # add these here.
+        metadata = tuple(metadata) + (
+            gapic_v1.routing_header.to_grpc_metadata((("name", request.name),)),
+        )
+
+        # Validate the universe domain.
+        self._client._validate_universe_domain()
+
+        # Send the request.
+        response = await rpc(
+            request,
+            retry=retry,
+            timeout=timeout,
+            metadata=metadata,
+        )
+
+        # Done; return the response.
+        return response
+
     async def get_metrics(
         self,
         request: Optional[Union[recaptchaenterprise.GetMetricsRequest, dict]] = None,
@@ -1812,7 +1934,7 @@ async def sample_update_firewall_policy():
             update_mask (:class:`google.protobuf.field_mask_pb2.FieldMask`):
                 Optional. The mask to control which
                 fields of the policy get updated. If the
-                mask is not present, all fields will be
+                mask is not present, all fields are
                 updated.
 
                 This corresponds to the ``update_mask`` field
diff --git a/packages/google-cloud-recaptcha-enterprise/google/cloud/recaptchaenterprise_v1/services/recaptcha_enterprise_service/client.py b/packages/google-cloud-recaptcha-enterprise/google/cloud/recaptchaenterprise_v1/services/recaptcha_enterprise_service/client.py
index e26f3ad6450c..bd62b5ca1e8c 100644
--- a/packages/google-cloud-recaptcha-enterprise/google/cloud/recaptchaenterprise_v1/services/recaptcha_enterprise_service/client.py
+++ b/packages/google-cloud-recaptcha-enterprise/google/cloud/recaptchaenterprise_v1/services/recaptcha_enterprise_service/client.py
@@ -829,7 +829,7 @@ def sample_create_assessment():
                 message.
             parent (str):
                 Required. The name of the project in which the
-                assessment will be created, in the format
+                assessment is created, in the format
                 ``projects/{project}``.
 
                 This corresponds to the ``parent`` field
@@ -953,7 +953,7 @@ def sample_annotate_assessment():
                 on the ``request`` instance; if ``request`` is provided, this
                 should not be set.
             annotation (google.cloud.recaptchaenterprise_v1.types.AnnotateAssessmentRequest.Annotation):
-                Optional. The annotation that will be
+                Optional. The annotation that is
                 assigned to the Event. This field can be
                 left empty to provide reasons that apply
                 to an event without concluding whether
@@ -1066,8 +1066,8 @@ def sample_create_key():
             request (Union[google.cloud.recaptchaenterprise_v1.types.CreateKeyRequest, dict]):
                 The request object. The create key request message.
             parent (str):
-                Required. The name of the project in which the key will
-                be created, in the format ``projects/{project}``.
+                Required. The name of the project in which the key is
+                created, in the format ``projects/{project}``.
 
                 This corresponds to the ``parent`` field
                 on the ``request`` instance; if ``request`` is provided, this
@@ -1181,8 +1181,7 @@ def sample_list_keys():
                 The request object. The list keys request message.
             parent (str):
                 Required. The name of the project that contains the keys
-                that will be listed, in the format
-                ``projects/{project}``.
+                that are listed, in the format ``projects/{project}``.
 
                 This corresponds to the ``parent`` field
                 on the ``request`` instance; if ``request`` is provided, this
@@ -1523,7 +1522,7 @@ def sample_update_key():
             update_mask (google.protobuf.field_mask_pb2.FieldMask):
                 Optional. The mask to control which
                 fields of the key get updated. If the
-                mask is not present, all fields will be
+                mask is not present, all fields are
                 updated.
 
                 This corresponds to the ``update_mask`` field
@@ -1765,6 +1764,126 @@ def sample_migrate_key():
         # Done; return the response.
         return response
 
+    def add_ip_override(
+        self,
+        request: Optional[Union[recaptchaenterprise.AddIpOverrideRequest, dict]] = None,
+        *,
+        name: Optional[str] = None,
+        ip_override_data: Optional[recaptchaenterprise.IpOverrideData] = None,
+        retry: OptionalRetry = gapic_v1.method.DEFAULT,
+        timeout: Union[float, object] = gapic_v1.method.DEFAULT,
+        metadata: Sequence[Tuple[str, str]] = (),
+    ) -> recaptchaenterprise.AddIpOverrideResponse:
+        r"""Adds an IP override to a key. The following restrictions hold:
+
+        -  The maximum number of IP overrides per key is 100.
+        -  For any conflict (such as IP already exists or IP part of an
+           existing IP range), an error is returned.
+
+        .. code-block:: python
+
+            # This snippet has been automatically generated and should be regarded as a
+            # code template only.
+            # It will require modifications to work:
+            # - It may require correct/in-range values for request initialization.
+            # - It may require specifying regional endpoints when creating the service
+            #   client as shown in:
+            #   https://googleapis.dev/python/google-api-core/latest/client_options.html
+            from google.cloud import recaptchaenterprise_v1
+
+            def sample_add_ip_override():
+                # Create a client
+                client = recaptchaenterprise_v1.RecaptchaEnterpriseServiceClient()
+
+                # Initialize request argument(s)
+                ip_override_data = recaptchaenterprise_v1.IpOverrideData()
+                ip_override_data.ip = "ip_value"
+                ip_override_data.override_type = "ALLOW"
+
+                request = recaptchaenterprise_v1.AddIpOverrideRequest(
+                    name="name_value",
+                    ip_override_data=ip_override_data,
+                )
+
+                # Make the request
+                response = client.add_ip_override(request=request)
+
+                # Handle the response
+                print(response)
+
+        Args:
+            request (Union[google.cloud.recaptchaenterprise_v1.types.AddIpOverrideRequest, dict]):
+                The request object. The AddIpOverride request message.
+            name (str):
+                Required. The name of the key to which the IP override
+                is added, in the format
+                ``projects/{project}/keys/{key}``.
+
+                This corresponds to the ``name`` field
+                on the ``request`` instance; if ``request`` is provided, this
+                should not be set.
+            ip_override_data (google.cloud.recaptchaenterprise_v1.types.IpOverrideData):
+                Required. IP override added to the
+                key.
+
+                This corresponds to the ``ip_override_data`` field
+                on the ``request`` instance; if ``request`` is provided, this
+                should not be set.
+            retry (google.api_core.retry.Retry): Designation of what errors, if any,
+                should be retried.
+            timeout (float): The timeout for this request.
+            metadata (Sequence[Tuple[str, str]]): Strings which should be
+                sent along with the request as metadata.
+
+        Returns:
+            google.cloud.recaptchaenterprise_v1.types.AddIpOverrideResponse:
+                Response for AddIpOverride.
+        """
+        # Create or coerce a protobuf request object.
+        # - Quick check: If we got a request object, we should *not* have
+        #   gotten any keyword arguments that map to the request.
+        has_flattened_params = any([name, ip_override_data])
+        if request is not None and has_flattened_params:
+            raise ValueError(
+                "If the `request` argument is set, then none of "
+                "the individual field arguments should be set."
+            )
+
+        # - Use the request object if provided (there's no risk of modifying the input as
+        #   there are no flattened fields), or create one.
+        if not isinstance(request, recaptchaenterprise.AddIpOverrideRequest):
+            request = recaptchaenterprise.AddIpOverrideRequest(request)
+            # If we have keyword arguments corresponding to fields on the
+            # request, apply these.
+            if name is not None:
+                request.name = name
+            if ip_override_data is not None:
+                request.ip_override_data = ip_override_data
+
+        # Wrap the RPC method; this adds retry and timeout information,
+        # and friendly error handling.
+        rpc = self._transport._wrapped_methods[self._transport.add_ip_override]
+
+        # Certain fields should be provided within the metadata header;
+        # add these here.
+        metadata = tuple(metadata) + (
+            gapic_v1.routing_header.to_grpc_metadata((("name", request.name),)),
+        )
+
+        # Validate the universe domain.
+        self._validate_universe_domain()
+
+        # Send the request.
+        response = rpc(
+            request,
+            retry=retry,
+            timeout=timeout,
+            metadata=metadata,
+        )
+
+        # Done; return the response.
+        return response
+
     def get_metrics(
         self,
         request: Optional[Union[recaptchaenterprise.GetMetricsRequest, dict]] = None,
@@ -2263,7 +2382,7 @@ def sample_update_firewall_policy():
             update_mask (google.protobuf.field_mask_pb2.FieldMask):
                 Optional. The mask to control which
                 fields of the policy get updated. If the
-                mask is not present, all fields will be
+                mask is not present, all fields are
                 updated.
 
                 This corresponds to the ``update_mask`` field
diff --git a/packages/google-cloud-recaptcha-enterprise/google/cloud/recaptchaenterprise_v1/services/recaptcha_enterprise_service/transports/base.py b/packages/google-cloud-recaptcha-enterprise/google/cloud/recaptchaenterprise_v1/services/recaptcha_enterprise_service/transports/base.py
index 9d55defeb4e0..1d997dedd2b7 100644
--- a/packages/google-cloud-recaptcha-enterprise/google/cloud/recaptchaenterprise_v1/services/recaptcha_enterprise_service/transports/base.py
+++ b/packages/google-cloud-recaptcha-enterprise/google/cloud/recaptchaenterprise_v1/services/recaptcha_enterprise_service/transports/base.py
@@ -174,6 +174,11 @@ def _prep_wrapped_messages(self, client_info):
                 default_timeout=None,
                 client_info=client_info,
             ),
+            self.add_ip_override: gapic_v1.method.wrap_method(
+                self.add_ip_override,
+                default_timeout=None,
+                client_info=client_info,
+            ),
             self.get_metrics: gapic_v1.method.wrap_method(
                 self.get_metrics,
                 default_timeout=None,
@@ -327,6 +332,18 @@ def migrate_key(
     ]:
         raise NotImplementedError()
 
+    @property
+    def add_ip_override(
+        self,
+    ) -> Callable[
+        [recaptchaenterprise.AddIpOverrideRequest],
+        Union[
+            recaptchaenterprise.AddIpOverrideResponse,
+            Awaitable[recaptchaenterprise.AddIpOverrideResponse],
+        ],
+    ]:
+        raise NotImplementedError()
+
     @property
     def get_metrics(
         self,
diff --git a/packages/google-cloud-recaptcha-enterprise/google/cloud/recaptchaenterprise_v1/services/recaptcha_enterprise_service/transports/grpc.py b/packages/google-cloud-recaptcha-enterprise/google/cloud/recaptchaenterprise_v1/services/recaptcha_enterprise_service/transports/grpc.py
index 7f19869103b9..bb598e78465f 100644
--- a/packages/google-cloud-recaptcha-enterprise/google/cloud/recaptchaenterprise_v1/services/recaptcha_enterprise_service/transports/grpc.py
+++ b/packages/google-cloud-recaptcha-enterprise/google/cloud/recaptchaenterprise_v1/services/recaptcha_enterprise_service/transports/grpc.py
@@ -491,6 +491,39 @@ def migrate_key(
             )
         return self._stubs["migrate_key"]
 
+    @property
+    def add_ip_override(
+        self,
+    ) -> Callable[
+        [recaptchaenterprise.AddIpOverrideRequest],
+        recaptchaenterprise.AddIpOverrideResponse,
+    ]:
+        r"""Return a callable for the add ip override method over gRPC.
+
+        Adds an IP override to a key. The following restrictions hold:
+
+        -  The maximum number of IP overrides per key is 100.
+        -  For any conflict (such as IP already exists or IP part of an
+           existing IP range), an error is returned.
+
+        Returns:
+            Callable[[~.AddIpOverrideRequest],
+                    ~.AddIpOverrideResponse]:
+                A function that, when called, will call the underlying RPC
+                on the server.
+        """
+        # Generate a "stub function" on-the-fly which will actually make
+        # the request.
+        # gRPC handles serialization and deserialization, so we just need
+        # to pass in the functions for each.
+        if "add_ip_override" not in self._stubs:
+            self._stubs["add_ip_override"] = self.grpc_channel.unary_unary(
+                "/google.cloud.recaptchaenterprise.v1.RecaptchaEnterpriseService/AddIpOverride",
+                request_serializer=recaptchaenterprise.AddIpOverrideRequest.serialize,
+                response_deserializer=recaptchaenterprise.AddIpOverrideResponse.deserialize,
+            )
+        return self._stubs["add_ip_override"]
+
     @property
     def get_metrics(
         self,
diff --git a/packages/google-cloud-recaptcha-enterprise/google/cloud/recaptchaenterprise_v1/services/recaptcha_enterprise_service/transports/grpc_asyncio.py b/packages/google-cloud-recaptcha-enterprise/google/cloud/recaptchaenterprise_v1/services/recaptcha_enterprise_service/transports/grpc_asyncio.py
index ef36498d9935..00886fe8df24 100644
--- a/packages/google-cloud-recaptcha-enterprise/google/cloud/recaptchaenterprise_v1/services/recaptcha_enterprise_service/transports/grpc_asyncio.py
+++ b/packages/google-cloud-recaptcha-enterprise/google/cloud/recaptchaenterprise_v1/services/recaptcha_enterprise_service/transports/grpc_asyncio.py
@@ -507,6 +507,39 @@ def migrate_key(
             )
         return self._stubs["migrate_key"]
 
+    @property
+    def add_ip_override(
+        self,
+    ) -> Callable[
+        [recaptchaenterprise.AddIpOverrideRequest],
+        Awaitable[recaptchaenterprise.AddIpOverrideResponse],
+    ]:
+        r"""Return a callable for the add ip override method over gRPC.
+
+        Adds an IP override to a key. The following restrictions hold:
+
+        -  The maximum number of IP overrides per key is 100.
+        -  For any conflict (such as IP already exists or IP part of an
+           existing IP range), an error is returned.
+
+        Returns:
+            Callable[[~.AddIpOverrideRequest],
+                    Awaitable[~.AddIpOverrideResponse]]:
+                A function that, when called, will call the underlying RPC
+                on the server.
+        """
+        # Generate a "stub function" on-the-fly which will actually make
+        # the request.
+        # gRPC handles serialization and deserialization, so we just need
+        # to pass in the functions for each.
+        if "add_ip_override" not in self._stubs:
+            self._stubs["add_ip_override"] = self.grpc_channel.unary_unary(
+                "/google.cloud.recaptchaenterprise.v1.RecaptchaEnterpriseService/AddIpOverride",
+                request_serializer=recaptchaenterprise.AddIpOverrideRequest.serialize,
+                response_deserializer=recaptchaenterprise.AddIpOverrideResponse.deserialize,
+            )
+        return self._stubs["add_ip_override"]
+
     @property
     def get_metrics(
         self,
@@ -853,6 +886,11 @@ def _prep_wrapped_messages(self, client_info):
                 default_timeout=None,
                 client_info=client_info,
             ),
+            self.add_ip_override: gapic_v1.method_async.wrap_method(
+                self.add_ip_override,
+                default_timeout=None,
+                client_info=client_info,
+            ),
             self.get_metrics: gapic_v1.method_async.wrap_method(
                 self.get_metrics,
                 default_timeout=None,
diff --git a/packages/google-cloud-recaptcha-enterprise/google/cloud/recaptchaenterprise_v1/types/__init__.py b/packages/google-cloud-recaptcha-enterprise/google/cloud/recaptchaenterprise_v1/types/__init__.py
index c035b7638c0e..230f8d821762 100644
--- a/packages/google-cloud-recaptcha-enterprise/google/cloud/recaptchaenterprise_v1/types/__init__.py
+++ b/packages/google-cloud-recaptcha-enterprise/google/cloud/recaptchaenterprise_v1/types/__init__.py
@@ -16,11 +16,14 @@
 from .recaptchaenterprise import (
     AccountDefenderAssessment,
     AccountVerificationInfo,
+    AddIpOverrideRequest,
+    AddIpOverrideResponse,
     AndroidKeySettings,
     AnnotateAssessmentRequest,
     AnnotateAssessmentResponse,
     AppleDeveloperId,
     Assessment,
+    AssessmentEnvironment,
     ChallengeMetrics,
     CreateAssessmentRequest,
     CreateFirewallPolicyRequest,
@@ -29,6 +32,7 @@
     DeleteKeyRequest,
     EndpointVerificationInfo,
     Event,
+    ExpressKeySettings,
     FirewallAction,
     FirewallPolicy,
     FirewallPolicyAssessment,
@@ -38,6 +42,7 @@
     GetKeyRequest,
     GetMetricsRequest,
     IOSKeySettings,
+    IpOverrideData,
     Key,
     ListFirewallPoliciesRequest,
     ListFirewallPoliciesResponse,
@@ -78,11 +83,14 @@
 __all__ = (
     "AccountDefenderAssessment",
     "AccountVerificationInfo",
+    "AddIpOverrideRequest",
+    "AddIpOverrideResponse",
     "AndroidKeySettings",
     "AnnotateAssessmentRequest",
     "AnnotateAssessmentResponse",
     "AppleDeveloperId",
     "Assessment",
+    "AssessmentEnvironment",
     "ChallengeMetrics",
     "CreateAssessmentRequest",
     "CreateFirewallPolicyRequest",
@@ -91,6 +99,7 @@
     "DeleteKeyRequest",
     "EndpointVerificationInfo",
     "Event",
+    "ExpressKeySettings",
     "FirewallAction",
     "FirewallPolicy",
     "FirewallPolicyAssessment",
@@ -100,6 +109,7 @@
     "GetKeyRequest",
     "GetMetricsRequest",
     "IOSKeySettings",
+    "IpOverrideData",
     "Key",
     "ListFirewallPoliciesRequest",
     "ListFirewallPoliciesResponse",
diff --git a/packages/google-cloud-recaptcha-enterprise/google/cloud/recaptchaenterprise_v1/types/recaptchaenterprise.py b/packages/google-cloud-recaptcha-enterprise/google/cloud/recaptchaenterprise_v1/types/recaptchaenterprise.py
index 8f4b9a655592..129df8657cdd 100644
--- a/packages/google-cloud-recaptcha-enterprise/google/cloud/recaptchaenterprise_v1/types/recaptchaenterprise.py
+++ b/packages/google-cloud-recaptcha-enterprise/google/cloud/recaptchaenterprise_v1/types/recaptchaenterprise.py
@@ -68,6 +68,7 @@
         "WebKeySettings",
         "AndroidKeySettings",
         "IOSKeySettings",
+        "ExpressKeySettings",
         "AppleDeveloperId",
         "ScoreDistribution",
         "ScoreMetrics",
@@ -81,9 +82,13 @@
         "ListRelatedAccountGroupsResponse",
         "SearchRelatedAccountGroupMembershipsRequest",
         "SearchRelatedAccountGroupMembershipsResponse",
+        "AddIpOverrideRequest",
+        "AddIpOverrideResponse",
         "RelatedAccountGroupMembership",
         "RelatedAccountGroup",
         "WafSettings",
+        "AssessmentEnvironment",
+        "IpOverrideData",
     },
 )
 
@@ -93,8 +98,8 @@ class CreateAssessmentRequest(proto.Message):
 
     Attributes:
         parent (str):
-            Required. The name of the project in which the assessment
-            will be created, in the format ``projects/{project}``.
+            Required. The name of the project in which the assessment is
+            created, in the format ``projects/{project}``.
         assessment (google.cloud.recaptchaenterprise_v1.types.Assessment):
             Required. The assessment details.
     """
@@ -277,11 +282,11 @@ class AnnotateAssessmentRequest(proto.Message):
             Required. The resource name of the Assessment, in the format
             ``projects/{project}/assessments/{assessment}``.
         annotation (google.cloud.recaptchaenterprise_v1.types.AnnotateAssessmentRequest.Annotation):
-            Optional. The annotation that will be
-            assigned to the Event. This field can be left
-            empty to provide reasons that apply to an event
-            without concluding whether the event is
-            legitimate or fraudulent.
+            Optional. The annotation that is assigned to
+            the Event. This field can be left empty to
+            provide reasons that apply to an event without
+            concluding whether the event is legitimate or
+            fraudulent.
         reasons (MutableSequence[google.cloud.recaptchaenterprise_v1.types.AnnotateAssessmentRequest.Reason]):
             Optional. Reasons for the annotation that are
             assigned to the event.
@@ -680,6 +685,11 @@ class Assessment(proto.Message):
             Output only. Assessment returned when a site key, a token,
             and a phone number as ``user_id`` are provided. Account
             defender and SMS toll fraud protection need to be enabled.
+        assessment_environment (google.cloud.recaptchaenterprise_v1.types.AssessmentEnvironment):
+            Optional. The environment creating the
+            assessment. This describes your environment (the
+            system invoking CreateAssessment), NOT the
+            environment of your user.
     """
 
     name: str = proto.Field(
@@ -736,6 +746,11 @@ class Assessment(proto.Message):
         number=12,
         message="PhoneFraudAssessment",
     )
+    assessment_environment: "AssessmentEnvironment" = proto.Field(
+        proto.MESSAGE,
+        number=14,
+        message="AssessmentEnvironment",
+    )
 
 
 class Event(proto.Message):
@@ -771,7 +786,7 @@ class Event(proto.Message):
         express (bool):
             Optional. Flag for a reCAPTCHA express request for an
             assessment without a token. If enabled, ``site_key`` must
-            reference a SCORE key with WAF feature set to EXPRESS.
+            reference an express key.
         requested_uri (str):
             Optional. The URI resource the user requested
             that triggered an assessment.
@@ -788,15 +803,14 @@ class Event(proto.Message):
         firewall_policy_evaluation (bool):
             Optional. Flag for enabling firewall policy
             config assessment. If this flag is enabled, the
-            firewall policy will be evaluated and a
-            suggested firewall action will be returned in
-            the response.
+            firewall policy is evaluated and a suggested
+            firewall action is returned in the response.
         transaction_data (google.cloud.recaptchaenterprise_v1.types.TransactionData):
             Optional. Data describing a payment
             transaction to be assessed. Sending this data
-            enables reCAPTCHA Enterprise Fraud Prevention
-            and the FraudPreventionAssessment component in
-            the response.
+            enables reCAPTCHA Fraud Prevention and the
+            FraudPreventionAssessment component in the
+            response.
         user_info (google.cloud.recaptchaenterprise_v1.types.UserInfo):
             Optional. Information about the user that
             generates this event, when they can be
@@ -1728,7 +1742,7 @@ class CreateKeyRequest(proto.Message):
 
     Attributes:
         parent (str):
-            Required. The name of the project in which the key will be
+            Required. The name of the project in which the key is
             created, in the format ``projects/{project}``.
         key (google.cloud.recaptchaenterprise_v1.types.Key):
             Required. Information to create a reCAPTCHA
@@ -1752,7 +1766,7 @@ class ListKeysRequest(proto.Message):
     Attributes:
         parent (str):
             Required. The name of the project that contains the keys
-            that will be listed, in the format ``projects/{project}``.
+            that are listed, in the format ``projects/{project}``.
         page_size (int):
             Optional. The maximum number of keys to
             return. Default is 10. Max limit is 1000.
@@ -1840,7 +1854,7 @@ class UpdateKeyRequest(proto.Message):
         update_mask (google.protobuf.field_mask_pb2.FieldMask):
             Optional. The mask to control which fields of
             the key get updated. If the mask is not present,
-            all fields will be updated.
+            all fields are updated.
     """
 
     key: "Key" = proto.Field(
@@ -1973,7 +1987,7 @@ class UpdateFirewallPolicyRequest(proto.Message):
         update_mask (google.protobuf.field_mask_pb2.FieldMask):
             Optional. The mask to control which fields of
             the policy get updated. If the mask is not
-            present, all fields will be updated.
+            present, all fields are updated.
     """
 
     firewall_policy: "FirewallPolicy" = proto.Field(
@@ -2043,12 +2057,12 @@ class MigrateKeyRequest(proto.Message):
             Enterprise key or migrated key behaves differently than a
             reCAPTCHA (non-Enterprise version) key when you reach a
             quota limit (see
-            https://cloud.google.com/recaptcha-enterprise/quotas#quota_limit).
-            To avoid any disruption of your usage, we check that a
-            billing account is present. If your usage of reCAPTCHA is
-            under the free quota, you can safely skip the billing check
-            and proceed with the migration. See
-            https://cloud.google.com/recaptcha-enterprise/docs/billing-information.
+            https://cloud.google.com/recaptcha/quotas#quota_limit). To
+            avoid any disruption of your usage, we check that a billing
+            account is present. If your usage of reCAPTCHA is under the
+            free quota, you can safely skip the billing check and
+            proceed with the migration. See
+            https://cloud.google.com/recaptcha/docs/billing-information.
     """
 
     name: str = proto.Field(
@@ -2086,12 +2100,12 @@ class Metrics(proto.Message):
         start_time (google.protobuf.timestamp_pb2.Timestamp):
             Inclusive start time aligned to a day (UTC).
         score_metrics (MutableSequence[google.cloud.recaptchaenterprise_v1.types.ScoreMetrics]):
-            Metrics will be continuous and in order by
-            dates, and in the granularity of day. All Key
-            types should have score-based data.
+            Metrics are continuous and in order by dates,
+            and in the granularity of day. All Key types
+            should have score-based data.
         challenge_metrics (MutableSequence[google.cloud.recaptchaenterprise_v1.types.ChallengeMetrics]):
-            Metrics will be continuous and in order by
-            dates, and in the granularity of day. Only
+            Metrics are continuous and in order by dates,
+            and in the granularity of day. Only
             challenge-based keys (CHECKBOX, INVISIBLE), will
             have challenge-based data.
     """
@@ -2169,10 +2183,15 @@ class Key(proto.Message):
             Settings for keys that can be used by iOS
             apps.
 
+            This field is a member of `oneof`_ ``platform_settings``.
+        express_settings (google.cloud.recaptchaenterprise_v1.types.ExpressKeySettings):
+            Settings specific to keys that can be used
+            for reCAPTCHA Express.
+
             This field is a member of `oneof`_ ``platform_settings``.
         labels (MutableMapping[str, str]):
             Optional. See [Creating and managing labels]
-            (https://cloud.google.com/recaptcha-enterprise/docs/labels).
+            (https://cloud.google.com/recaptcha/docs/labels).
         create_time (google.protobuf.timestamp_pb2.Timestamp):
             Output only. The timestamp corresponding to
             the creation of this key.
@@ -2209,6 +2228,12 @@ class Key(proto.Message):
         oneof="platform_settings",
         message="IOSKeySettings",
     )
+    express_settings: "ExpressKeySettings" = proto.Field(
+        proto.MESSAGE,
+        number=11,
+        oneof="platform_settings",
+        message="ExpressKeySettings",
+    )
     labels: MutableMapping[str, str] = proto.MapField(
         proto.STRING,
         proto.STRING,
@@ -2449,6 +2474,13 @@ class IOSKeySettings(proto.Message):
     )
 
 
+class ExpressKeySettings(proto.Message):
+    r"""Settings specific to keys that can be used for reCAPTCHA
+    Express.
+
+    """
+
+
 class AppleDeveloperId(proto.Message):
     r"""Contains fields that are required to perform Apple-specific
     integrity checks.
@@ -2572,13 +2604,12 @@ class FirewallPolicyAssessment(proto.Message):
     Attributes:
         error (google.rpc.status_pb2.Status):
             Output only. If the processing of a policy config fails, an
-            error will be populated and the firewall_policy will be left
-            empty.
+            error is populated and the firewall_policy is left empty.
         firewall_policy (google.cloud.recaptchaenterprise_v1.types.FirewallPolicy):
             Output only. The policy that matched the
             request. If more than one policy may match, this
             is the first match. If no policy matches the
-            incoming request, the policy field will be left
+            incoming request, the policy field is left
             empty.
     """
 
@@ -3032,6 +3063,32 @@ def raw_page(self):
     )
 
 
+class AddIpOverrideRequest(proto.Message):
+    r"""The AddIpOverride request message.
+
+    Attributes:
+        name (str):
+            Required. The name of the key to which the IP override is
+            added, in the format ``projects/{project}/keys/{key}``.
+        ip_override_data (google.cloud.recaptchaenterprise_v1.types.IpOverrideData):
+            Required. IP override added to the key.
+    """
+
+    name: str = proto.Field(
+        proto.STRING,
+        number=1,
+    )
+    ip_override_data: "IpOverrideData" = proto.Field(
+        proto.MESSAGE,
+        number=2,
+        message="IpOverrideData",
+    )
+
+
+class AddIpOverrideResponse(proto.Message):
+    r"""Response for AddIpOverride."""
+
+
 class RelatedAccountGroupMembership(proto.Message):
     r"""A membership in a group of related accounts.
 
@@ -3097,7 +3154,7 @@ class WafSettings(proto.Message):
 
     class WafFeature(proto.Enum):
         r"""Supported WAF features. For more information, see
-        https://cloud.google.com/recaptcha-enterprise/docs/usecase#comparison_of_features.
+        https://cloud.google.com/recaptcha/docs/usecase#comparison_of_features.
 
         Values:
             WAF_FEATURE_UNSPECIFIED (0):
@@ -3151,4 +3208,81 @@ class WafService(proto.Enum):
     )
 
 
+class AssessmentEnvironment(proto.Message):
+    r"""The environment creating the assessment. This describes your
+    environment (the system invoking CreateAssessment), NOT the
+    environment of your user.
+
+    Attributes:
+        client (str):
+            Optional. Identifies the client module
+            initiating the CreateAssessment request. This
+            can be the link to the client module's project.
+            Examples include:
+
+            -
+              "github.com/GoogleCloudPlatform/recaptcha-enterprise-google-tag-manager"
+            -
+              "cloud.google.com/recaptcha/docs/implement-waf-akamai"
+            -
+              "cloud.google.com/recaptcha/docs/implement-waf-cloudflare"
+            - "wordpress.org/plugins/recaptcha-something".
+        version (str):
+            Optional. The version of the client module.
+            For example, "1.0.0".
+    """
+
+    client: str = proto.Field(
+        proto.STRING,
+        number=1,
+    )
+    version: str = proto.Field(
+        proto.STRING,
+        number=2,
+    )
+
+
+class IpOverrideData(proto.Message):
+    r"""Information about the IP or IP range override.
+
+    Attributes:
+        ip (str):
+            Required. The IP address to override (can be
+            IPv4, IPv6 or CIDR). The IP override must be a
+            valid IPv4 or IPv6 address, or a CIDR range. The
+            IP override must be a public IP address.
+            Example of IPv4: 168.192.5.6
+            Example of IPv6:
+            2001:0000:130F:0000:0000:09C0:876A:130B Example
+            of IPv4 with CIDR: 168.192.5.0/24
+            Example of IPv6 with CIDR: 2001:0DB8:1234::/48
+        override_type (google.cloud.recaptchaenterprise_v1.types.IpOverrideData.OverrideType):
+            Required. Describes the type of IP override.
+    """
+
+    class OverrideType(proto.Enum):
+        r"""Enum that represents the type of IP override.
+
+        Values:
+            OVERRIDE_TYPE_UNSPECIFIED (0):
+                Default override type that indicates this
+                enum hasn't been specified.
+            ALLOW (1):
+                Allowlist the IP address; i.e. give a
+                ``risk_analysis.score`` of 0.9 for all valid assessments.
+        """
+        OVERRIDE_TYPE_UNSPECIFIED = 0
+        ALLOW = 1
+
+    ip: str = proto.Field(
+        proto.STRING,
+        number=1,
+    )
+    override_type: OverrideType = proto.Field(
+        proto.ENUM,
+        number=3,
+        enum=OverrideType,
+    )
+
+
 __all__ = tuple(sorted(__protobuf__.manifest))
diff --git a/packages/google-cloud-recaptcha-enterprise/samples/generated_samples/recaptchaenterprise_v1_generated_recaptcha_enterprise_service_add_ip_override_async.py b/packages/google-cloud-recaptcha-enterprise/samples/generated_samples/recaptchaenterprise_v1_generated_recaptcha_enterprise_service_add_ip_override_async.py
new file mode 100644
index 000000000000..0431a12687a1
--- /dev/null
+++ b/packages/google-cloud-recaptcha-enterprise/samples/generated_samples/recaptchaenterprise_v1_generated_recaptcha_enterprise_service_add_ip_override_async.py
@@ -0,0 +1,57 @@
+# -*- coding: utf-8 -*-
+# Copyright 2024 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# Generated code. DO NOT EDIT!
+#
+# Snippet for AddIpOverride
+# NOTE: This snippet has been automatically generated for illustrative purposes only.
+# It may require modifications to work in your environment.
+
+# To install the latest published package dependency, execute the following:
+#   python3 -m pip install google-cloud-recaptcha-enterprise
+
+
+# [START recaptchaenterprise_v1_generated_RecaptchaEnterpriseService_AddIpOverride_async]
+# This snippet has been automatically generated and should be regarded as a
+# code template only.
+# It will require modifications to work:
+# - It may require correct/in-range values for request initialization.
+# - It may require specifying regional endpoints when creating the service
+#   client as shown in:
+#   https://googleapis.dev/python/google-api-core/latest/client_options.html
+from google.cloud import recaptchaenterprise_v1
+
+
+async def sample_add_ip_override():
+    # Create a client
+    client = recaptchaenterprise_v1.RecaptchaEnterpriseServiceAsyncClient()
+
+    # Initialize request argument(s)
+    ip_override_data = recaptchaenterprise_v1.IpOverrideData()
+    ip_override_data.ip = "ip_value"
+    ip_override_data.override_type = "ALLOW"
+
+    request = recaptchaenterprise_v1.AddIpOverrideRequest(
+        name="name_value",
+        ip_override_data=ip_override_data,
+    )
+
+    # Make the request
+    response = await client.add_ip_override(request=request)
+
+    # Handle the response
+    print(response)
+
+# [END recaptchaenterprise_v1_generated_RecaptchaEnterpriseService_AddIpOverride_async]
diff --git a/packages/google-cloud-recaptcha-enterprise/samples/generated_samples/recaptchaenterprise_v1_generated_recaptcha_enterprise_service_add_ip_override_sync.py b/packages/google-cloud-recaptcha-enterprise/samples/generated_samples/recaptchaenterprise_v1_generated_recaptcha_enterprise_service_add_ip_override_sync.py
new file mode 100644
index 000000000000..f5727a9c8ee8
--- /dev/null
+++ b/packages/google-cloud-recaptcha-enterprise/samples/generated_samples/recaptchaenterprise_v1_generated_recaptcha_enterprise_service_add_ip_override_sync.py
@@ -0,0 +1,57 @@
+# -*- coding: utf-8 -*-
+# Copyright 2024 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# Generated code. DO NOT EDIT!
+#
+# Snippet for AddIpOverride
+# NOTE: This snippet has been automatically generated for illustrative purposes only.
+# It may require modifications to work in your environment.
+
+# To install the latest published package dependency, execute the following:
+#   python3 -m pip install google-cloud-recaptcha-enterprise
+
+
+# [START recaptchaenterprise_v1_generated_RecaptchaEnterpriseService_AddIpOverride_sync]
+# This snippet has been automatically generated and should be regarded as a
+# code template only.
+# It will require modifications to work:
+# - It may require correct/in-range values for request initialization.
+# - It may require specifying regional endpoints when creating the service
+#   client as shown in:
+#   https://googleapis.dev/python/google-api-core/latest/client_options.html
+from google.cloud import recaptchaenterprise_v1
+
+
+def sample_add_ip_override():
+    # Create a client
+    client = recaptchaenterprise_v1.RecaptchaEnterpriseServiceClient()
+
+    # Initialize request argument(s)
+    ip_override_data = recaptchaenterprise_v1.IpOverrideData()
+    ip_override_data.ip = "ip_value"
+    ip_override_data.override_type = "ALLOW"
+
+    request = recaptchaenterprise_v1.AddIpOverrideRequest(
+        name="name_value",
+        ip_override_data=ip_override_data,
+    )
+
+    # Make the request
+    response = client.add_ip_override(request=request)
+
+    # Handle the response
+    print(response)
+
+# [END recaptchaenterprise_v1_generated_RecaptchaEnterpriseService_AddIpOverride_sync]
diff --git a/packages/google-cloud-recaptcha-enterprise/samples/generated_samples/snippet_metadata_google.cloud.recaptchaenterprise.v1.json b/packages/google-cloud-recaptcha-enterprise/samples/generated_samples/snippet_metadata_google.cloud.recaptchaenterprise.v1.json
index aa554428ea59..225f39c961dd 100644
--- a/packages/google-cloud-recaptcha-enterprise/samples/generated_samples/snippet_metadata_google.cloud.recaptchaenterprise.v1.json
+++ b/packages/google-cloud-recaptcha-enterprise/samples/generated_samples/snippet_metadata_google.cloud.recaptchaenterprise.v1.json
@@ -8,9 +8,178 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-recaptcha-enterprise",
-    "version": "0.1.0"
+    "version": "1.22.1"
   },
   "snippets": [
+    {
+      "canonical": true,
+      "clientMethod": {
+        "async": true,
+        "client": {
+          "fullName": "google.cloud.recaptchaenterprise_v1.RecaptchaEnterpriseServiceAsyncClient",
+          "shortName": "RecaptchaEnterpriseServiceAsyncClient"
+        },
+        "fullName": "google.cloud.recaptchaenterprise_v1.RecaptchaEnterpriseServiceAsyncClient.add_ip_override",
+        "method": {
+          "fullName": "google.cloud.recaptchaenterprise.v1.RecaptchaEnterpriseService.AddIpOverride",
+          "service": {
+            "fullName": "google.cloud.recaptchaenterprise.v1.RecaptchaEnterpriseService",
+            "shortName": "RecaptchaEnterpriseService"
+          },
+          "shortName": "AddIpOverride"
+        },
+        "parameters": [
+          {
+            "name": "request",
+            "type": "google.cloud.recaptchaenterprise_v1.types.AddIpOverrideRequest"
+          },
+          {
+            "name": "name",
+            "type": "str"
+          },
+          {
+            "name": "ip_override_data",
+            "type": "google.cloud.recaptchaenterprise_v1.types.IpOverrideData"
+          },
+          {
+            "name": "retry",
+            "type": "google.api_core.retry.Retry"
+          },
+          {
+            "name": "timeout",
+            "type": "float"
+          },
+          {
+            "name": "metadata",
+            "type": "Sequence[Tuple[str, str]"
+          }
+        ],
+        "resultType": "google.cloud.recaptchaenterprise_v1.types.AddIpOverrideResponse",
+        "shortName": "add_ip_override"
+      },
+      "description": "Sample for AddIpOverride",
+      "file": "recaptchaenterprise_v1_generated_recaptcha_enterprise_service_add_ip_override_async.py",
+      "language": "PYTHON",
+      "origin": "API_DEFINITION",
+      "regionTag": "recaptchaenterprise_v1_generated_RecaptchaEnterpriseService_AddIpOverride_async",
+      "segments": [
+        {
+          "end": 56,
+          "start": 27,
+          "type": "FULL"
+        },
+        {
+          "end": 56,
+          "start": 27,
+          "type": "SHORT"
+        },
+        {
+          "end": 40,
+          "start": 38,
+          "type": "CLIENT_INITIALIZATION"
+        },
+        {
+          "end": 50,
+          "start": 41,
+          "type": "REQUEST_INITIALIZATION"
+        },
+        {
+          "end": 53,
+          "start": 51,
+          "type": "REQUEST_EXECUTION"
+        },
+        {
+          "end": 57,
+          "start": 54,
+          "type": "RESPONSE_HANDLING"
+        }
+      ],
+      "title": "recaptchaenterprise_v1_generated_recaptcha_enterprise_service_add_ip_override_async.py"
+    },
+    {
+      "canonical": true,
+      "clientMethod": {
+        "client": {
+          "fullName": "google.cloud.recaptchaenterprise_v1.RecaptchaEnterpriseServiceClient",
+          "shortName": "RecaptchaEnterpriseServiceClient"
+        },
+        "fullName": "google.cloud.recaptchaenterprise_v1.RecaptchaEnterpriseServiceClient.add_ip_override",
+        "method": {
+          "fullName": "google.cloud.recaptchaenterprise.v1.RecaptchaEnterpriseService.AddIpOverride",
+          "service": {
+            "fullName": "google.cloud.recaptchaenterprise.v1.RecaptchaEnterpriseService",
+            "shortName": "RecaptchaEnterpriseService"
+          },
+          "shortName": "AddIpOverride"
+        },
+        "parameters": [
+          {
+            "name": "request",
+            "type": "google.cloud.recaptchaenterprise_v1.types.AddIpOverrideRequest"
+          },
+          {
+            "name": "name",
+            "type": "str"
+          },
+          {
+            "name": "ip_override_data",
+            "type": "google.cloud.recaptchaenterprise_v1.types.IpOverrideData"
+          },
+          {
+            "name": "retry",
+            "type": "google.api_core.retry.Retry"
+          },
+          {
+            "name": "timeout",
+            "type": "float"
+          },
+          {
+            "name": "metadata",
+            "type": "Sequence[Tuple[str, str]"
+          }
+        ],
+        "resultType": "google.cloud.recaptchaenterprise_v1.types.AddIpOverrideResponse",
+        "shortName": "add_ip_override"
+      },
+      "description": "Sample for AddIpOverride",
+      "file": "recaptchaenterprise_v1_generated_recaptcha_enterprise_service_add_ip_override_sync.py",
+      "language": "PYTHON",
+      "origin": "API_DEFINITION",
+      "regionTag": "recaptchaenterprise_v1_generated_RecaptchaEnterpriseService_AddIpOverride_sync",
+      "segments": [
+        {
+          "end": 56,
+          "start": 27,
+          "type": "FULL"
+        },
+        {
+          "end": 56,
+          "start": 27,
+          "type": "SHORT"
+        },
+        {
+          "end": 40,
+          "start": 38,
+          "type": "CLIENT_INITIALIZATION"
+        },
+        {
+          "end": 50,
+          "start": 41,
+          "type": "REQUEST_INITIALIZATION"
+        },
+        {
+          "end": 53,
+          "start": 51,
+          "type": "REQUEST_EXECUTION"
+        },
+        {
+          "end": 57,
+          "start": 54,
+          "type": "RESPONSE_HANDLING"
+        }
+      ],
+      "title": "recaptchaenterprise_v1_generated_recaptcha_enterprise_service_add_ip_override_sync.py"
+    },
     {
       "canonical": true,
       "clientMethod": {
diff --git a/packages/google-cloud-recaptcha-enterprise/scripts/fixup_recaptchaenterprise_v1_keywords.py b/packages/google-cloud-recaptcha-enterprise/scripts/fixup_recaptchaenterprise_v1_keywords.py
index 59c889be9ff2..36e16174f78a 100644
--- a/packages/google-cloud-recaptcha-enterprise/scripts/fixup_recaptchaenterprise_v1_keywords.py
+++ b/packages/google-cloud-recaptcha-enterprise/scripts/fixup_recaptchaenterprise_v1_keywords.py
@@ -39,6 +39,7 @@ def partition(
 class recaptchaenterpriseCallTransformer(cst.CSTTransformer):
     CTRL_PARAMS: Tuple[str] = ('retry', 'timeout', 'metadata')
     METHOD_TO_PARAMS: Dict[str, Tuple[str]] = {
+        'add_ip_override': ('name', 'ip_override_data', ),
         'annotate_assessment': ('name', 'annotation', 'reasons', 'account_id', 'hashed_account_id', 'transaction_event', ),
         'create_assessment': ('parent', 'assessment', ),
         'create_firewall_policy': ('parent', 'firewall_policy', ),
diff --git a/packages/google-cloud-recaptcha-enterprise/tests/unit/gapic/recaptchaenterprise_v1/test_recaptcha_enterprise_service.py b/packages/google-cloud-recaptcha-enterprise/tests/unit/gapic/recaptchaenterprise_v1/test_recaptcha_enterprise_service.py
index 2134315d5a12..9230f6fa88c3 100644
--- a/packages/google-cloud-recaptcha-enterprise/tests/unit/gapic/recaptchaenterprise_v1/test_recaptcha_enterprise_service.py
+++ b/packages/google-cloud-recaptcha-enterprise/tests/unit/gapic/recaptchaenterprise_v1/test_recaptcha_enterprise_service.py
@@ -4646,6 +4646,374 @@ async def test_migrate_key_field_headers_async():
     ) in kw["metadata"]
 
 
+@pytest.mark.parametrize(
+    "request_type",
+    [
+        recaptchaenterprise.AddIpOverrideRequest,
+        dict,
+    ],
+)
+def test_add_ip_override(request_type, transport: str = "grpc"):
+    client = RecaptchaEnterpriseServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport=transport,
+    )
+
+    # Everything is optional in proto3 as far as the runtime is concerned,
+    # and we are mocking out the actual API, so just send an empty request.
+    request = request_type()
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(type(client.transport.add_ip_override), "__call__") as call:
+        # Designate an appropriate return value for the call.
+        call.return_value = recaptchaenterprise.AddIpOverrideResponse()
+        response = client.add_ip_override(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert len(call.mock_calls) == 1
+        _, args, _ = call.mock_calls[0]
+        request = recaptchaenterprise.AddIpOverrideRequest()
+        assert args[0] == request
+
+    # Establish that the response is the type that we expect.
+    assert isinstance(response, recaptchaenterprise.AddIpOverrideResponse)
+
+
+def test_add_ip_override_empty_call():
+    # This test is a coverage failsafe to make sure that totally empty calls,
+    # i.e. request == None and no flattened fields passed, work.
+    client = RecaptchaEnterpriseServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="grpc",
+    )
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(type(client.transport.add_ip_override), "__call__") as call:
+        call.return_value.name = (
+            "foo"  # operation_request.operation in compute client(s) expect a string.
+        )
+        client.add_ip_override()
+        call.assert_called()
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == recaptchaenterprise.AddIpOverrideRequest()
+
+
+def test_add_ip_override_non_empty_request_with_auto_populated_field():
+    # This test is a coverage failsafe to make sure that UUID4 fields are
+    # automatically populated, according to AIP-4235, with non-empty requests.
+    client = RecaptchaEnterpriseServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="grpc",
+    )
+
+    # Populate all string fields in the request which are not UUID4
+    # since we want to check that UUID4 are populated automatically
+    # if they meet the requirements of AIP 4235.
+    request = recaptchaenterprise.AddIpOverrideRequest(
+        name="name_value",
+    )
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(type(client.transport.add_ip_override), "__call__") as call:
+        call.return_value.name = (
+            "foo"  # operation_request.operation in compute client(s) expect a string.
+        )
+        client.add_ip_override(request=request)
+        call.assert_called()
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == recaptchaenterprise.AddIpOverrideRequest(
+            name="name_value",
+        )
+
+
+def test_add_ip_override_use_cached_wrapped_rpc():
+    # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
+    # instead of constructing them on each call
+    with mock.patch("google.api_core.gapic_v1.method.wrap_method") as wrapper_fn:
+        client = RecaptchaEnterpriseServiceClient(
+            credentials=ga_credentials.AnonymousCredentials(),
+            transport="grpc",
+        )
+
+        # Should wrap all calls on client creation
+        assert wrapper_fn.call_count > 0
+        wrapper_fn.reset_mock()
+
+        # Ensure method has been cached
+        assert client._transport.add_ip_override in client._transport._wrapped_methods
+
+        # Replace cached wrapped function with mock
+        mock_rpc = mock.Mock()
+        mock_rpc.return_value.name = (
+            "foo"  # operation_request.operation in compute client(s) expect a string.
+        )
+        client._transport._wrapped_methods[client._transport.add_ip_override] = mock_rpc
+        request = {}
+        client.add_ip_override(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert mock_rpc.call_count == 1
+
+        client.add_ip_override(request)
+
+        # Establish that a new wrapper was not created for this call
+        assert wrapper_fn.call_count == 0
+        assert mock_rpc.call_count == 2
+
+
+@pytest.mark.asyncio
+async def test_add_ip_override_empty_call_async():
+    # This test is a coverage failsafe to make sure that totally empty calls,
+    # i.e. request == None and no flattened fields passed, work.
+    client = RecaptchaEnterpriseServiceAsyncClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport="grpc_asyncio",
+    )
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(type(client.transport.add_ip_override), "__call__") as call:
+        # Designate an appropriate return value for the call.
+        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
+            recaptchaenterprise.AddIpOverrideResponse()
+        )
+        response = await client.add_ip_override()
+        call.assert_called()
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == recaptchaenterprise.AddIpOverrideRequest()
+
+
+@pytest.mark.asyncio
+async def test_add_ip_override_async_use_cached_wrapped_rpc(
+    transport: str = "grpc_asyncio",
+):
+    # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
+    # instead of constructing them on each call
+    with mock.patch("google.api_core.gapic_v1.method_async.wrap_method") as wrapper_fn:
+        client = RecaptchaEnterpriseServiceAsyncClient(
+            credentials=ga_credentials.AnonymousCredentials(),
+            transport=transport,
+        )
+
+        # Should wrap all calls on client creation
+        assert wrapper_fn.call_count > 0
+        wrapper_fn.reset_mock()
+
+        # Ensure method has been cached
+        assert (
+            client._client._transport.add_ip_override
+            in client._client._transport._wrapped_methods
+        )
+
+        # Replace cached wrapped function with mock
+        mock_rpc = mock.AsyncMock()
+        mock_rpc.return_value = mock.Mock()
+        client._client._transport._wrapped_methods[
+            client._client._transport.add_ip_override
+        ] = mock_rpc
+
+        request = {}
+        await client.add_ip_override(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert mock_rpc.call_count == 1
+
+        await client.add_ip_override(request)
+
+        # Establish that a new wrapper was not created for this call
+        assert wrapper_fn.call_count == 0
+        assert mock_rpc.call_count == 2
+
+
+@pytest.mark.asyncio
+async def test_add_ip_override_async(
+    transport: str = "grpc_asyncio",
+    request_type=recaptchaenterprise.AddIpOverrideRequest,
+):
+    client = RecaptchaEnterpriseServiceAsyncClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+        transport=transport,
+    )
+
+    # Everything is optional in proto3 as far as the runtime is concerned,
+    # and we are mocking out the actual API, so just send an empty request.
+    request = request_type()
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(type(client.transport.add_ip_override), "__call__") as call:
+        # Designate an appropriate return value for the call.
+        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
+            recaptchaenterprise.AddIpOverrideResponse()
+        )
+        response = await client.add_ip_override(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert len(call.mock_calls)
+        _, args, _ = call.mock_calls[0]
+        request = recaptchaenterprise.AddIpOverrideRequest()
+        assert args[0] == request
+
+    # Establish that the response is the type that we expect.
+    assert isinstance(response, recaptchaenterprise.AddIpOverrideResponse)
+
+
+@pytest.mark.asyncio
+async def test_add_ip_override_async_from_dict():
+    await test_add_ip_override_async(request_type=dict)
+
+
+def test_add_ip_override_field_headers():
+    client = RecaptchaEnterpriseServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+
+    # Any value that is part of the HTTP/1.1 URI should be sent as
+    # a field header. Set these to a non-empty value.
+    request = recaptchaenterprise.AddIpOverrideRequest()
+
+    request.name = "name_value"
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(type(client.transport.add_ip_override), "__call__") as call:
+        call.return_value = recaptchaenterprise.AddIpOverrideResponse()
+        client.add_ip_override(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert len(call.mock_calls) == 1
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == request
+
+    # Establish that the field header was sent.
+    _, _, kw = call.mock_calls[0]
+    assert (
+        "x-goog-request-params",
+        "name=name_value",
+    ) in kw["metadata"]
+
+
+@pytest.mark.asyncio
+async def test_add_ip_override_field_headers_async():
+    client = RecaptchaEnterpriseServiceAsyncClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+
+    # Any value that is part of the HTTP/1.1 URI should be sent as
+    # a field header. Set these to a non-empty value.
+    request = recaptchaenterprise.AddIpOverrideRequest()
+
+    request.name = "name_value"
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(type(client.transport.add_ip_override), "__call__") as call:
+        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
+            recaptchaenterprise.AddIpOverrideResponse()
+        )
+        await client.add_ip_override(request)
+
+        # Establish that the underlying gRPC stub method was called.
+        assert len(call.mock_calls)
+        _, args, _ = call.mock_calls[0]
+        assert args[0] == request
+
+    # Establish that the field header was sent.
+    _, _, kw = call.mock_calls[0]
+    assert (
+        "x-goog-request-params",
+        "name=name_value",
+    ) in kw["metadata"]
+
+
+def test_add_ip_override_flattened():
+    client = RecaptchaEnterpriseServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(type(client.transport.add_ip_override), "__call__") as call:
+        # Designate an appropriate return value for the call.
+        call.return_value = recaptchaenterprise.AddIpOverrideResponse()
+        # Call the method with a truthy value for each flattened field,
+        # using the keyword arguments to the method.
+        client.add_ip_override(
+            name="name_value",
+            ip_override_data=recaptchaenterprise.IpOverrideData(ip="ip_value"),
+        )
+
+        # Establish that the underlying call was made with the expected
+        # request object values.
+        assert len(call.mock_calls) == 1
+        _, args, _ = call.mock_calls[0]
+        arg = args[0].name
+        mock_val = "name_value"
+        assert arg == mock_val
+        arg = args[0].ip_override_data
+        mock_val = recaptchaenterprise.IpOverrideData(ip="ip_value")
+        assert arg == mock_val
+
+
+def test_add_ip_override_flattened_error():
+    client = RecaptchaEnterpriseServiceClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+
+    # Attempting to call a method with both a request object and flattened
+    # fields is an error.
+    with pytest.raises(ValueError):
+        client.add_ip_override(
+            recaptchaenterprise.AddIpOverrideRequest(),
+            name="name_value",
+            ip_override_data=recaptchaenterprise.IpOverrideData(ip="ip_value"),
+        )
+
+
+@pytest.mark.asyncio
+async def test_add_ip_override_flattened_async():
+    client = RecaptchaEnterpriseServiceAsyncClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+
+    # Mock the actual call within the gRPC stub, and fake the request.
+    with mock.patch.object(type(client.transport.add_ip_override), "__call__") as call:
+        # Designate an appropriate return value for the call.
+        call.return_value = recaptchaenterprise.AddIpOverrideResponse()
+
+        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
+            recaptchaenterprise.AddIpOverrideResponse()
+        )
+        # Call the method with a truthy value for each flattened field,
+        # using the keyword arguments to the method.
+        response = await client.add_ip_override(
+            name="name_value",
+            ip_override_data=recaptchaenterprise.IpOverrideData(ip="ip_value"),
+        )
+
+        # Establish that the underlying call was made with the expected
+        # request object values.
+        assert len(call.mock_calls)
+        _, args, _ = call.mock_calls[0]
+        arg = args[0].name
+        mock_val = "name_value"
+        assert arg == mock_val
+        arg = args[0].ip_override_data
+        mock_val = recaptchaenterprise.IpOverrideData(ip="ip_value")
+        assert arg == mock_val
+
+
+@pytest.mark.asyncio
+async def test_add_ip_override_flattened_error_async():
+    client = RecaptchaEnterpriseServiceAsyncClient(
+        credentials=ga_credentials.AnonymousCredentials(),
+    )
+
+    # Attempting to call a method with both a request object and flattened
+    # fields is an error.
+    with pytest.raises(ValueError):
+        await client.add_ip_override(
+            recaptchaenterprise.AddIpOverrideRequest(),
+            name="name_value",
+            ip_override_data=recaptchaenterprise.IpOverrideData(ip="ip_value"),
+        )
+
+
 @pytest.mark.parametrize(
     "request_type",
     [
@@ -9582,6 +9950,7 @@ def test_recaptcha_enterprise_service_base_transport():
         "update_key",
         "delete_key",
         "migrate_key",
+        "add_ip_override",
         "get_metrics",
         "create_firewall_policy",
         "list_firewall_policies",
diff --git a/packages/google-cloud-service-management/CHANGELOG.md b/packages/google-cloud-service-management/CHANGELOG.md
index c62d63a5255d..40b0c2033509 100644
--- a/packages/google-cloud-service-management/CHANGELOG.md
+++ b/packages/google-cloud-service-management/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [1.9.0](https://github.com/googleapis/google-cloud-python/compare/google-cloud-service-management-v1.8.5...google-cloud-service-management-v1.9.0) (2024-09-03)
+
+
+### Features
+
+* Support local binding for variables with keyword name collision ([c54700d](https://github.com/googleapis/google-cloud-python/commit/c54700d3e11e59eb5fae01fda25dbf3a9acbe382))
+
 ## [1.8.5](https://github.com/googleapis/google-cloud-python/compare/google-cloud-service-management-v1.8.4...google-cloud-service-management-v1.8.5) (2024-07-30)
 
 
diff --git a/packages/google-cloud-service-management/google/cloud/servicemanagement/gapic_version.py b/packages/google-cloud-service-management/google/cloud/servicemanagement/gapic_version.py
index 558c8aab67c5..1c08bcbd1569 100644
--- a/packages/google-cloud-service-management/google/cloud/servicemanagement/gapic_version.py
+++ b/packages/google-cloud-service-management/google/cloud/servicemanagement/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "0.0.0"  # {x-release-please-version}
+__version__ = "1.9.0"  # {x-release-please-version}
diff --git a/packages/google-cloud-service-management/google/cloud/servicemanagement_v1/gapic_version.py b/packages/google-cloud-service-management/google/cloud/servicemanagement_v1/gapic_version.py
index 558c8aab67c5..1c08bcbd1569 100644
--- a/packages/google-cloud-service-management/google/cloud/servicemanagement_v1/gapic_version.py
+++ b/packages/google-cloud-service-management/google/cloud/servicemanagement_v1/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "0.0.0"  # {x-release-please-version}
+__version__ = "1.9.0"  # {x-release-please-version}
diff --git a/packages/google-cloud-service-management/samples/generated_samples/snippet_metadata_google.api.servicemanagement.v1.json b/packages/google-cloud-service-management/samples/generated_samples/snippet_metadata_google.api.servicemanagement.v1.json
index 8b514f320127..f108a0c7b5e1 100644
--- a/packages/google-cloud-service-management/samples/generated_samples/snippet_metadata_google.api.servicemanagement.v1.json
+++ b/packages/google-cloud-service-management/samples/generated_samples/snippet_metadata_google.api.servicemanagement.v1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-service-management",
-    "version": "0.1.0"
+    "version": "1.9.0"
   },
   "snippets": [
     {
diff --git a/packages/google-cloud-service-management/tests/unit/gapic/servicemanagement_v1/test_service_manager.py b/packages/google-cloud-service-management/tests/unit/gapic/servicemanagement_v1/test_service_manager.py
index 12b5f383294f..10c05a61ed21 100644
--- a/packages/google-cloud-service-management/tests/unit/gapic/servicemanagement_v1/test_service_manager.py
+++ b/packages/google-cloud-service-management/tests/unit/gapic/servicemanagement_v1/test_service_manager.py
@@ -9286,7 +9286,10 @@ def test_create_service_config_rest(request_type):
                     },
                     "cpp_settings": {"common": {}},
                     "php_settings": {"common": {}},
-                    "python_settings": {"common": {}},
+                    "python_settings": {
+                        "common": {},
+                        "experimental_features": {"rest_async_io_enabled": True},
+                    },
                     "node_settings": {"common": {}},
                     "dotnet_settings": {
                         "common": {},
diff --git a/packages/google-cloud-texttospeech/CHANGELOG.md b/packages/google-cloud-texttospeech/CHANGELOG.md
index 14211a0b99aa..0ebabf8433ec 100644
--- a/packages/google-cloud-texttospeech/CHANGELOG.md
+++ b/packages/google-cloud-texttospeech/CHANGELOG.md
@@ -4,6 +4,13 @@
 
 [1]: https://pypi.org/project/google-cloud-texttospeech/#history
 
+## [2.17.2](https://github.com/googleapis/google-cloud-python/compare/google-cloud-texttospeech-v2.17.1...google-cloud-texttospeech-v2.17.2) (2024-08-26)
+
+
+### Documentation
+
+* [google-cloud-texttospeech] update Long Audio capabilities to include SSML ([#13031](https://github.com/googleapis/google-cloud-python/issues/13031)) ([46ef325](https://github.com/googleapis/google-cloud-python/commit/46ef3250151c5939100ab4a1dcda6ccf68ea9e4c))
+
 ## [2.17.1](https://github.com/googleapis/google-cloud-python/compare/google-cloud-texttospeech-v2.17.0...google-cloud-texttospeech-v2.17.1) (2024-08-20)
 
 
diff --git a/packages/google-cloud-texttospeech/google/cloud/texttospeech/gapic_version.py b/packages/google-cloud-texttospeech/google/cloud/texttospeech/gapic_version.py
index 6fecc94eb049..b2378ad73fca 100644
--- a/packages/google-cloud-texttospeech/google/cloud/texttospeech/gapic_version.py
+++ b/packages/google-cloud-texttospeech/google/cloud/texttospeech/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "2.17.1"  # {x-release-please-version}
+__version__ = "2.17.2"  # {x-release-please-version}
diff --git a/packages/google-cloud-texttospeech/google/cloud/texttospeech_v1/gapic_version.py b/packages/google-cloud-texttospeech/google/cloud/texttospeech_v1/gapic_version.py
index 6fecc94eb049..b2378ad73fca 100644
--- a/packages/google-cloud-texttospeech/google/cloud/texttospeech_v1/gapic_version.py
+++ b/packages/google-cloud-texttospeech/google/cloud/texttospeech_v1/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "2.17.1"  # {x-release-please-version}
+__version__ = "2.17.2"  # {x-release-please-version}
diff --git a/packages/google-cloud-texttospeech/google/cloud/texttospeech_v1beta1/gapic_version.py b/packages/google-cloud-texttospeech/google/cloud/texttospeech_v1beta1/gapic_version.py
index 6fecc94eb049..b2378ad73fca 100644
--- a/packages/google-cloud-texttospeech/google/cloud/texttospeech_v1beta1/gapic_version.py
+++ b/packages/google-cloud-texttospeech/google/cloud/texttospeech_v1beta1/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "2.17.1"  # {x-release-please-version}
+__version__ = "2.17.2"  # {x-release-please-version}
diff --git a/packages/google-cloud-texttospeech/google/cloud/texttospeech_v1beta1/types/cloud_tts_lrs.py b/packages/google-cloud-texttospeech/google/cloud/texttospeech_v1beta1/types/cloud_tts_lrs.py
index 7617ef4b5f77..67b70c095524 100644
--- a/packages/google-cloud-texttospeech/google/cloud/texttospeech_v1beta1/types/cloud_tts_lrs.py
+++ b/packages/google-cloud-texttospeech/google/cloud/texttospeech_v1beta1/types/cloud_tts_lrs.py
@@ -42,8 +42,7 @@ class SynthesizeLongAudioRequest(proto.Message):
             ``projects/*/locations/*``.
         input (google.cloud.texttospeech_v1beta1.types.SynthesisInput):
             Required. The Synthesizer requires either
-            plain text or SSML as input. While Long Audio is
-            in preview, SSML is temporarily unsupported.
+            plain text or SSML as input.
         audio_config (google.cloud.texttospeech_v1beta1.types.AudioConfig):
             Required. The configuration of the
             synthesized audio.
diff --git a/packages/google-cloud-texttospeech/samples/generated_samples/snippet_metadata_google.cloud.texttospeech.v1.json b/packages/google-cloud-texttospeech/samples/generated_samples/snippet_metadata_google.cloud.texttospeech.v1.json
index ac836bbdf339..bf52a9d09886 100644
--- a/packages/google-cloud-texttospeech/samples/generated_samples/snippet_metadata_google.cloud.texttospeech.v1.json
+++ b/packages/google-cloud-texttospeech/samples/generated_samples/snippet_metadata_google.cloud.texttospeech.v1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-texttospeech",
-    "version": "2.17.1"
+    "version": "2.17.2"
   },
   "snippets": [
     {
diff --git a/packages/google-cloud-texttospeech/samples/generated_samples/snippet_metadata_google.cloud.texttospeech.v1beta1.json b/packages/google-cloud-texttospeech/samples/generated_samples/snippet_metadata_google.cloud.texttospeech.v1beta1.json
index c0a9e929493b..f3e0f230302f 100644
--- a/packages/google-cloud-texttospeech/samples/generated_samples/snippet_metadata_google.cloud.texttospeech.v1beta1.json
+++ b/packages/google-cloud-texttospeech/samples/generated_samples/snippet_metadata_google.cloud.texttospeech.v1beta1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-texttospeech",
-    "version": "2.17.1"
+    "version": "2.17.2"
   },
   "snippets": [
     {
diff --git a/packages/google-cloud-visionai/CHANGELOG.md b/packages/google-cloud-visionai/CHANGELOG.md
index 55e12017ac55..ef410baf042c 100644
--- a/packages/google-cloud-visionai/CHANGELOG.md
+++ b/packages/google-cloud-visionai/CHANGELOG.md
@@ -1,5 +1,22 @@
 # Changelog
 
+## [0.1.3](https://github.com/googleapis/google-cloud-python/compare/google-cloud-visionai-v0.1.2...google-cloud-visionai-v0.1.3) (2024-09-03)
+
+
+### Features
+
+* add BatchOperationStatus to import metadata ([0321915](https://github.com/googleapis/google-cloud-python/commit/0321915e31c12f24e96b778b5b3814507ff547d6))
+* request client libraries for new languages ([0321915](https://github.com/googleapis/google-cloud-python/commit/0321915e31c12f24e96b778b5b3814507ff547d6))
+
+
+### Documentation
+
+* A comment for enum value `FAILED` in enum `State` is changed ([0321915](https://github.com/googleapis/google-cloud-python/commit/0321915e31c12f24e96b778b5b3814507ff547d6))
+* A comment for enum value `IN_PROGRESS` in enum `State` is changed ([0321915](https://github.com/googleapis/google-cloud-python/commit/0321915e31c12f24e96b778b5b3814507ff547d6))
+* A comment for enum value `SUCCEEDED` in enum `State` is changed ([0321915](https://github.com/googleapis/google-cloud-python/commit/0321915e31c12f24e96b778b5b3814507ff547d6))
+* A comment for field `relevance` in message `.google.cloud.visionai.v1.SearchResultItem` is changed ([0321915](https://github.com/googleapis/google-cloud-python/commit/0321915e31c12f24e96b778b5b3814507ff547d6))
+* A comment for method `ClipAsset` in service `Warehouse` is changed ([0321915](https://github.com/googleapis/google-cloud-python/commit/0321915e31c12f24e96b778b5b3814507ff547d6))
+
 ## [0.1.2](https://github.com/googleapis/google-cloud-python/compare/google-cloud-visionai-v0.1.1...google-cloud-visionai-v0.1.2) (2024-07-30)
 
 
diff --git a/packages/google-cloud-visionai/google/cloud/visionai/__init__.py b/packages/google-cloud-visionai/google/cloud/visionai/__init__.py
index ccaffd1a09fa..1849c4efa2ad 100644
--- a/packages/google-cloud-visionai/google/cloud/visionai/__init__.py
+++ b/packages/google-cloud-visionai/google/cloud/visionai/__init__.py
@@ -276,6 +276,7 @@
     AnnotationValue,
     Asset,
     AssetSource,
+    BatchOperationStatus,
     BoolValue,
     CircleArea,
     ClipAssetRequest,
@@ -640,6 +641,7 @@
     "AnnotationValue",
     "Asset",
     "AssetSource",
+    "BatchOperationStatus",
     "BoolValue",
     "CircleArea",
     "ClipAssetRequest",
diff --git a/packages/google-cloud-visionai/google/cloud/visionai/gapic_version.py b/packages/google-cloud-visionai/google/cloud/visionai/gapic_version.py
index 558c8aab67c5..114e40645800 100644
--- a/packages/google-cloud-visionai/google/cloud/visionai/gapic_version.py
+++ b/packages/google-cloud-visionai/google/cloud/visionai/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "0.0.0"  # {x-release-please-version}
+__version__ = "0.1.3"  # {x-release-please-version}
diff --git a/packages/google-cloud-visionai/google/cloud/visionai_v1/__init__.py b/packages/google-cloud-visionai/google/cloud/visionai_v1/__init__.py
index 82e8e3764093..732d7a958c52 100644
--- a/packages/google-cloud-visionai/google/cloud/visionai_v1/__init__.py
+++ b/packages/google-cloud-visionai/google/cloud/visionai_v1/__init__.py
@@ -250,6 +250,7 @@
     AnnotationValue,
     Asset,
     AssetSource,
+    BatchOperationStatus,
     BoolValue,
     CircleArea,
     ClipAssetRequest,
@@ -432,6 +433,7 @@
     "AssetSource",
     "AttributeValue",
     "AutoscalingMetricSpec",
+    "BatchOperationStatus",
     "BatchRunProcessRequest",
     "BatchRunProcessResponse",
     "BigQueryConfig",
diff --git a/packages/google-cloud-visionai/google/cloud/visionai_v1/gapic_version.py b/packages/google-cloud-visionai/google/cloud/visionai_v1/gapic_version.py
index 558c8aab67c5..114e40645800 100644
--- a/packages/google-cloud-visionai/google/cloud/visionai_v1/gapic_version.py
+++ b/packages/google-cloud-visionai/google/cloud/visionai_v1/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "0.0.0"  # {x-release-please-version}
+__version__ = "0.1.3"  # {x-release-please-version}
diff --git a/packages/google-cloud-visionai/google/cloud/visionai_v1/services/warehouse/async_client.py b/packages/google-cloud-visionai/google/cloud/visionai_v1/services/warehouse/async_client.py
index e33e38726d0e..85335ef56434 100644
--- a/packages/google-cloud-visionai/google/cloud/visionai_v1/services/warehouse/async_client.py
+++ b/packages/google-cloud-visionai/google/cloud/visionai_v1/services/warehouse/async_client.py
@@ -4057,11 +4057,12 @@ async def clip_asset(
         timeout: Union[float, object] = gapic_v1.method.DEFAULT,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> warehouse.ClipAssetResponse:
-        r"""Generates clips for downloading. The api takes in a time range,
-        and generates a clip of the first content available after
-        start_time and before end_time, which may overflow beyond these
-        bounds. Returned clips are truncated if the total size of the
-        clips are larger than 100MB.
+        r"""Supported by STREAM_VIDEO corpus type. Generates clips for
+        downloading. The api takes in a time range, and generates a clip
+        of the first content available after start_time and before
+        end_time, which may overflow beyond these bounds. Returned clips
+        are truncated if the total size of the clips are larger than
+        100MB.
 
         .. code-block:: python
 
diff --git a/packages/google-cloud-visionai/google/cloud/visionai_v1/services/warehouse/client.py b/packages/google-cloud-visionai/google/cloud/visionai_v1/services/warehouse/client.py
index a7b0f4fa4c78..a8da521a4414 100644
--- a/packages/google-cloud-visionai/google/cloud/visionai_v1/services/warehouse/client.py
+++ b/packages/google-cloud-visionai/google/cloud/visionai_v1/services/warehouse/client.py
@@ -4562,11 +4562,12 @@ def clip_asset(
         timeout: Union[float, object] = gapic_v1.method.DEFAULT,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> warehouse.ClipAssetResponse:
-        r"""Generates clips for downloading. The api takes in a time range,
-        and generates a clip of the first content available after
-        start_time and before end_time, which may overflow beyond these
-        bounds. Returned clips are truncated if the total size of the
-        clips are larger than 100MB.
+        r"""Supported by STREAM_VIDEO corpus type. Generates clips for
+        downloading. The api takes in a time range, and generates a clip
+        of the first content available after start_time and before
+        end_time, which may overflow beyond these bounds. Returned clips
+        are truncated if the total size of the clips are larger than
+        100MB.
 
         .. code-block:: python
 
diff --git a/packages/google-cloud-visionai/google/cloud/visionai_v1/services/warehouse/transports/grpc.py b/packages/google-cloud-visionai/google/cloud/visionai_v1/services/warehouse/transports/grpc.py
index df1b049eebc6..372e53e0beca 100644
--- a/packages/google-cloud-visionai/google/cloud/visionai_v1/services/warehouse/transports/grpc.py
+++ b/packages/google-cloud-visionai/google/cloud/visionai_v1/services/warehouse/transports/grpc.py
@@ -1142,11 +1142,12 @@ def clip_asset(
     ) -> Callable[[warehouse.ClipAssetRequest], warehouse.ClipAssetResponse]:
         r"""Return a callable for the clip asset method over gRPC.
 
-        Generates clips for downloading. The api takes in a time range,
-        and generates a clip of the first content available after
-        start_time and before end_time, which may overflow beyond these
-        bounds. Returned clips are truncated if the total size of the
-        clips are larger than 100MB.
+        Supported by STREAM_VIDEO corpus type. Generates clips for
+        downloading. The api takes in a time range, and generates a clip
+        of the first content available after start_time and before
+        end_time, which may overflow beyond these bounds. Returned clips
+        are truncated if the total size of the clips are larger than
+        100MB.
 
         Returns:
             Callable[[~.ClipAssetRequest],
diff --git a/packages/google-cloud-visionai/google/cloud/visionai_v1/services/warehouse/transports/grpc_asyncio.py b/packages/google-cloud-visionai/google/cloud/visionai_v1/services/warehouse/transports/grpc_asyncio.py
index d7eef7e7e00e..dccfe2920d8b 100644
--- a/packages/google-cloud-visionai/google/cloud/visionai_v1/services/warehouse/transports/grpc_asyncio.py
+++ b/packages/google-cloud-visionai/google/cloud/visionai_v1/services/warehouse/transports/grpc_asyncio.py
@@ -1172,11 +1172,12 @@ def clip_asset(
     ) -> Callable[[warehouse.ClipAssetRequest], Awaitable[warehouse.ClipAssetResponse]]:
         r"""Return a callable for the clip asset method over gRPC.
 
-        Generates clips for downloading. The api takes in a time range,
-        and generates a clip of the first content available after
-        start_time and before end_time, which may overflow beyond these
-        bounds. Returned clips are truncated if the total size of the
-        clips are larger than 100MB.
+        Supported by STREAM_VIDEO corpus type. Generates clips for
+        downloading. The api takes in a time range, and generates a clip
+        of the first content available after start_time and before
+        end_time, which may overflow beyond these bounds. Returned clips
+        are truncated if the total size of the clips are larger than
+        100MB.
 
         Returns:
             Callable[[~.ClipAssetRequest],
diff --git a/packages/google-cloud-visionai/google/cloud/visionai_v1/types/__init__.py b/packages/google-cloud-visionai/google/cloud/visionai_v1/types/__init__.py
index df36023a838c..08ebd9fab538 100644
--- a/packages/google-cloud-visionai/google/cloud/visionai_v1/types/__init__.py
+++ b/packages/google-cloud-visionai/google/cloud/visionai_v1/types/__init__.py
@@ -230,6 +230,7 @@
     AnnotationValue,
     Asset,
     AssetSource,
+    BatchOperationStatus,
     BoolValue,
     CircleArea,
     ClipAssetRequest,
@@ -582,6 +583,7 @@
     "AnnotationValue",
     "Asset",
     "AssetSource",
+    "BatchOperationStatus",
     "BoolValue",
     "CircleArea",
     "ClipAssetRequest",
diff --git a/packages/google-cloud-visionai/google/cloud/visionai_v1/types/warehouse.py b/packages/google-cloud-visionai/google/cloud/visionai_v1/types/warehouse.py
index 92451e6b9b0e..a236ffe33e3e 100644
--- a/packages/google-cloud-visionai/google/cloud/visionai_v1/types/warehouse.py
+++ b/packages/google-cloud-visionai/google/cloud/visionai_v1/types/warehouse.py
@@ -120,6 +120,7 @@
         "DeleteAnnotationRequest",
         "ImportAssetsRequest",
         "ImportAssetsMetadata",
+        "BatchOperationStatus",
         "ImportAssetsResponse",
         "CreateSearchConfigRequest",
         "UpdateSearchConfigRequest",
@@ -607,11 +608,11 @@ class State(proto.Enum):
                     The default process state should never
                     happen.
                 IN_PROGRESS (1):
-                    The feature is in progress.
+                    The ml model analysis is in progress.
                 SUCCEEDED (2):
-                    The process is successfully done.
+                    The ml model analysis is successfully done.
                 FAILED (3):
-                    The process failed.
+                    The ml model analysis failed.
             """
             STATE_UNSPECIFIED = 0
             IN_PROGRESS = 1
@@ -1629,6 +1630,22 @@ class Index(proto.Message):
             Index of VIDEO_ON_DEMAND corpus can have at most one
             deployed index. Index of IMAGE corpus can have multiple
             deployed indexes.
+        satisfies_pzs (bool):
+            Output only. This boolean field is only set
+            for projects that have Physical Zone Separation
+            enabled via an Org Policy constraint. It is set
+            to true when the index is a valid zone separated
+            index and false if it isn't.
+
+            This field is a member of `oneof`_ ``_satisfies_pzs``.
+        satisfies_pzi (bool):
+            Output only. This boolean field is only set
+            for projects that have Physical Zone Isolation
+            enabled via an Org Policy constraint. It is set
+            to true when the index is a valid zone isolated
+            index and false if it isn't.
+
+            This field is a member of `oneof`_ ``_satisfies_pzi``.
     """
 
     class State(proto.Enum):
@@ -1687,6 +1704,16 @@ class State(proto.Enum):
         number=8,
         message="DeployedIndexReference",
     )
+    satisfies_pzs: bool = proto.Field(
+        proto.BOOL,
+        number=11,
+        optional=True,
+    )
+    satisfies_pzi: bool = proto.Field(
+        proto.BOOL,
+        number=12,
+        optional=True,
+    )
 
 
 class DeployedIndexReference(proto.Message):
@@ -1709,6 +1736,9 @@ class Corpus(proto.Message):
     Within a corpus, media shares the same data schema. Search is
     also restricted within a single corpus.
 
+
+    .. _oneof: https://proto-plus-python.readthedocs.io/en/stable/fields.html#oneofs-mutually-exclusive-fields
+
     Attributes:
         name (str):
             Resource name of the corpus. Format:
@@ -1729,6 +1759,22 @@ class Corpus(proto.Message):
         search_capability_setting (google.cloud.visionai_v1.types.SearchCapabilitySetting):
             Default search capability setting on corpus
             level.
+        satisfies_pzs (bool):
+            Output only. This boolean field is only set
+            for projects that have Physical Zone Separation
+            enabled via an Org Policy constraint. It is set
+            to true when the corpus is a valid zone
+            separated corpus and false if it isn't.
+
+            This field is a member of `oneof`_ ``_satisfies_pzs``.
+        satisfies_pzi (bool):
+            Output only. This boolean field is only set
+            for projects that have Physical Zone Isolation
+            enabled via an Org Policy constraint. It is set
+            to true when the corpus is a valid zone isolated
+            corpus and false if it isn't.
+
+            This field is a member of `oneof`_ ``_satisfies_pzi``.
     """
 
     class Type(proto.Enum):
@@ -1778,6 +1824,16 @@ class Type(proto.Enum):
         number=8,
         message="SearchCapabilitySetting",
     )
+    satisfies_pzs: bool = proto.Field(
+        proto.BOOL,
+        number=11,
+        optional=True,
+    )
+    satisfies_pzi: bool = proto.Field(
+        proto.BOOL,
+        number=12,
+        optional=True,
+    )
 
 
 class GetCorpusRequest(proto.Message):
@@ -2874,6 +2930,11 @@ class ImportAssetsMetadata(proto.Message):
     Attributes:
         metadata (google.cloud.visionai_v1.types.OperationMetadata):
             The metadata of the operation.
+        status (google.cloud.visionai_v1.types.BatchOperationStatus):
+            The importing status including partial
+            failures, if the implementation can provide such
+            information during the progress of the
+            ImportAssets.
     """
 
     metadata: common.OperationMetadata = proto.Field(
@@ -2881,6 +2942,33 @@ class ImportAssetsMetadata(proto.Message):
         number=1,
         message=common.OperationMetadata,
     )
+    status: "BatchOperationStatus" = proto.Field(
+        proto.MESSAGE,
+        number=2,
+        message="BatchOperationStatus",
+    )
+
+
+class BatchOperationStatus(proto.Message):
+    r"""The batch operation status.
+
+    Attributes:
+        success_count (int):
+            The count of assets (together with their
+            annotations if any) successfully ingested.
+        failure_count (int):
+            The count of assets failed to ingested; it
+            might be due to the annotation ingestion error.
+    """
+
+    success_count: int = proto.Field(
+        proto.INT32,
+        number=1,
+    )
+    failure_count: int = proto.Field(
+        proto.INT32,
+        number=2,
+    )
 
 
 class ImportAssetsResponse(proto.Message):
@@ -3084,6 +3172,9 @@ class IndexEndpoint(proto.Message):
     r"""Message representing IndexEndpoint resource. Indexes are
     deployed into it.
 
+
+    .. _oneof: https://proto-plus-python.readthedocs.io/en/stable/fields.html#oneofs-mutually-exclusive-fields
+
     Attributes:
         name (str):
             Output only. Resource name of the IndexEndpoint. Format:
@@ -3125,6 +3216,22 @@ class IndexEndpoint(proto.Message):
             Output only. Create timestamp.
         update_time (google.protobuf.timestamp_pb2.Timestamp):
             Output only. Update timestamp.
+        satisfies_pzs (bool):
+            Output only. This boolean field is only set
+            for projects that have Physical Zone Separation
+            enabled via an Org Policy constraint. It is set
+            to true when the index endpoint is a valid zone
+            separated index endpoint and false if it isn't.
+
+            This field is a member of `oneof`_ ``_satisfies_pzs``.
+        satisfies_pzi (bool):
+            Output only. This boolean field is only set
+            for projects that have Physical Zone Isolation
+            enabled via an Org Policy constraint. It is set
+            to true when the index endpoint is a valid zone
+            isolated index endpoint and false if it isn't.
+
+            This field is a member of `oneof`_ ``_satisfies_pzi``.
     """
 
     class State(proto.Enum):
@@ -3185,6 +3292,16 @@ class State(proto.Enum):
         number=8,
         message=timestamp_pb2.Timestamp,
     )
+    satisfies_pzs: bool = proto.Field(
+        proto.BOOL,
+        number=10,
+        optional=True,
+    )
+    satisfies_pzi: bool = proto.Field(
+        proto.BOOL,
+        number=11,
+        optional=True,
+    )
 
 
 class CreateIndexEndpointRequest(proto.Message):
@@ -4639,11 +4756,13 @@ class SearchResultItem(proto.Message):
         segment (google.cloud.visionai_v1.types.Partition.TemporalPartition):
             The matched asset segment.
         relevance (float):
-            Relevance of this ``SearchResultItem`` to user search
-            request. Currently available only in Image Warehouse, and by
-            default represents cosine similarity. In the future can be
-            other measures such as "dot product" or "topicality"
-            requested in the search request.
+            Available to IMAGE corpus types. Relevance of this
+            ``SearchResultItem`` to user search query (text query or
+            image query). By default this represents cosine similarity
+            between the query and the retrieved media content. The value
+            is in the range of [-1, 1]. Note that search ranking is not
+            only decided by this relevance score, but also other factors
+            such as the match of annotations.
         requested_annotations (MutableSequence[google.cloud.visionai_v1.types.Annotation]):
             Search result annotations specified by
             result_annotation_keys in search request.
diff --git a/packages/google-cloud-visionai/google/cloud/visionai_v1alpha1/gapic_version.py b/packages/google-cloud-visionai/google/cloud/visionai_v1alpha1/gapic_version.py
index 558c8aab67c5..114e40645800 100644
--- a/packages/google-cloud-visionai/google/cloud/visionai_v1alpha1/gapic_version.py
+++ b/packages/google-cloud-visionai/google/cloud/visionai_v1alpha1/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "0.0.0"  # {x-release-please-version}
+__version__ = "0.1.3"  # {x-release-please-version}
diff --git a/packages/google-cloud-visionai/google/cloud/visionai_v1alpha1/types/platform.py b/packages/google-cloud-visionai/google/cloud/visionai_v1alpha1/types/platform.py
index fd8a8b002e97..1710e7124467 100644
--- a/packages/google-cloud-visionai/google/cloud/visionai_v1alpha1/types/platform.py
+++ b/packages/google-cloud-visionai/google/cloud/visionai_v1alpha1/types/platform.py
@@ -3253,7 +3253,8 @@ class VertexCustomConfig(proto.Message):
                   'instanceId': STRING;
                   'node': STRING;
                   'processor': STRING;
-             }
+
+            }
     """
 
     max_prediction_fps: int = proto.Field(
diff --git a/packages/google-cloud-visionai/samples/generated_samples/snippet_metadata_google.cloud.visionai.v1.json b/packages/google-cloud-visionai/samples/generated_samples/snippet_metadata_google.cloud.visionai.v1.json
index db06e43868dd..37adaa87e6b4 100644
--- a/packages/google-cloud-visionai/samples/generated_samples/snippet_metadata_google.cloud.visionai.v1.json
+++ b/packages/google-cloud-visionai/samples/generated_samples/snippet_metadata_google.cloud.visionai.v1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-visionai",
-    "version": "0.1.0"
+    "version": "0.1.3"
   },
   "snippets": [
     {
diff --git a/packages/google-cloud-visionai/samples/generated_samples/snippet_metadata_google.cloud.visionai.v1alpha1.json b/packages/google-cloud-visionai/samples/generated_samples/snippet_metadata_google.cloud.visionai.v1alpha1.json
index f7d1e3f46ede..26bf9524f8af 100644
--- a/packages/google-cloud-visionai/samples/generated_samples/snippet_metadata_google.cloud.visionai.v1alpha1.json
+++ b/packages/google-cloud-visionai/samples/generated_samples/snippet_metadata_google.cloud.visionai.v1alpha1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-visionai",
-    "version": "0.1.0"
+    "version": "0.1.3"
   },
   "snippets": [
     {
diff --git a/packages/google-cloud-visionai/tests/unit/gapic/visionai_v1/test_warehouse.py b/packages/google-cloud-visionai/tests/unit/gapic/visionai_v1/test_warehouse.py
index 0b6e0f0a95cc..4cfebb38f721 100644
--- a/packages/google-cloud-visionai/tests/unit/gapic/visionai_v1/test_warehouse.py
+++ b/packages/google-cloud-visionai/tests/unit/gapic/visionai_v1/test_warehouse.py
@@ -5976,6 +5976,8 @@ def test_get_index(request_type, transport: str = "grpc"):
             display_name="display_name_value",
             description="description_value",
             state=warehouse.Index.State.CREATING,
+            satisfies_pzs=True,
+            satisfies_pzi=True,
             entire_corpus=True,
         )
         response = client.get_index(request)
@@ -5992,6 +5994,8 @@ def test_get_index(request_type, transport: str = "grpc"):
     assert response.display_name == "display_name_value"
     assert response.description == "description_value"
     assert response.state == warehouse.Index.State.CREATING
+    assert response.satisfies_pzs is True
+    assert response.satisfies_pzi is True
 
 
 def test_get_index_empty_call():
@@ -6094,6 +6098,8 @@ async def test_get_index_empty_call_async():
                 display_name="display_name_value",
                 description="description_value",
                 state=warehouse.Index.State.CREATING,
+                satisfies_pzs=True,
+                satisfies_pzi=True,
             )
         )
         response = await client.get_index()
@@ -6164,6 +6170,8 @@ async def test_get_index_async(
                 display_name="display_name_value",
                 description="description_value",
                 state=warehouse.Index.State.CREATING,
+                satisfies_pzs=True,
+                satisfies_pzi=True,
             )
         )
         response = await client.get_index(request)
@@ -6180,6 +6188,8 @@ async def test_get_index_async(
     assert response.display_name == "display_name_value"
     assert response.description == "description_value"
     assert response.state == warehouse.Index.State.CREATING
+    assert response.satisfies_pzs is True
+    assert response.satisfies_pzi is True
 
 
 @pytest.mark.asyncio
@@ -7656,6 +7666,8 @@ def test_get_corpus(request_type, transport: str = "grpc"):
             display_name="display_name_value",
             description="description_value",
             type_=warehouse.Corpus.Type.STREAM_VIDEO,
+            satisfies_pzs=True,
+            satisfies_pzi=True,
         )
         response = client.get_corpus(request)
 
@@ -7671,6 +7683,8 @@ def test_get_corpus(request_type, transport: str = "grpc"):
     assert response.display_name == "display_name_value"
     assert response.description == "description_value"
     assert response.type_ == warehouse.Corpus.Type.STREAM_VIDEO
+    assert response.satisfies_pzs is True
+    assert response.satisfies_pzi is True
 
 
 def test_get_corpus_empty_call():
@@ -7773,6 +7787,8 @@ async def test_get_corpus_empty_call_async():
                 display_name="display_name_value",
                 description="description_value",
                 type_=warehouse.Corpus.Type.STREAM_VIDEO,
+                satisfies_pzs=True,
+                satisfies_pzi=True,
             )
         )
         response = await client.get_corpus()
@@ -7843,6 +7859,8 @@ async def test_get_corpus_async(
                 display_name="display_name_value",
                 description="description_value",
                 type_=warehouse.Corpus.Type.STREAM_VIDEO,
+                satisfies_pzs=True,
+                satisfies_pzi=True,
             )
         )
         response = await client.get_corpus(request)
@@ -7859,6 +7877,8 @@ async def test_get_corpus_async(
     assert response.display_name == "display_name_value"
     assert response.description == "description_value"
     assert response.type_ == warehouse.Corpus.Type.STREAM_VIDEO
+    assert response.satisfies_pzs is True
+    assert response.satisfies_pzi is True
 
 
 @pytest.mark.asyncio
@@ -8030,6 +8050,8 @@ def test_update_corpus(request_type, transport: str = "grpc"):
             display_name="display_name_value",
             description="description_value",
             type_=warehouse.Corpus.Type.STREAM_VIDEO,
+            satisfies_pzs=True,
+            satisfies_pzi=True,
         )
         response = client.update_corpus(request)
 
@@ -8045,6 +8067,8 @@ def test_update_corpus(request_type, transport: str = "grpc"):
     assert response.display_name == "display_name_value"
     assert response.description == "description_value"
     assert response.type_ == warehouse.Corpus.Type.STREAM_VIDEO
+    assert response.satisfies_pzs is True
+    assert response.satisfies_pzi is True
 
 
 def test_update_corpus_empty_call():
@@ -8143,6 +8167,8 @@ async def test_update_corpus_empty_call_async():
                 display_name="display_name_value",
                 description="description_value",
                 type_=warehouse.Corpus.Type.STREAM_VIDEO,
+                satisfies_pzs=True,
+                satisfies_pzi=True,
             )
         )
         response = await client.update_corpus()
@@ -8215,6 +8241,8 @@ async def test_update_corpus_async(
                 display_name="display_name_value",
                 description="description_value",
                 type_=warehouse.Corpus.Type.STREAM_VIDEO,
+                satisfies_pzs=True,
+                satisfies_pzi=True,
             )
         )
         response = await client.update_corpus(request)
@@ -8231,6 +8259,8 @@ async def test_update_corpus_async(
     assert response.display_name == "display_name_value"
     assert response.description == "description_value"
     assert response.type_ == warehouse.Corpus.Type.STREAM_VIDEO
+    assert response.satisfies_pzs is True
+    assert response.satisfies_pzi is True
 
 
 @pytest.mark.asyncio
@@ -20567,6 +20597,8 @@ def test_get_index_endpoint(request_type, transport: str = "grpc"):
             display_name="display_name_value",
             description="description_value",
             state=warehouse.IndexEndpoint.State.CREATING,
+            satisfies_pzs=True,
+            satisfies_pzi=True,
         )
         response = client.get_index_endpoint(request)
 
@@ -20582,6 +20614,8 @@ def test_get_index_endpoint(request_type, transport: str = "grpc"):
     assert response.display_name == "display_name_value"
     assert response.description == "description_value"
     assert response.state == warehouse.IndexEndpoint.State.CREATING
+    assert response.satisfies_pzs is True
+    assert response.satisfies_pzi is True
 
 
 def test_get_index_endpoint_empty_call():
@@ -20694,6 +20728,8 @@ async def test_get_index_endpoint_empty_call_async():
                 display_name="display_name_value",
                 description="description_value",
                 state=warehouse.IndexEndpoint.State.CREATING,
+                satisfies_pzs=True,
+                satisfies_pzi=True,
             )
         )
         response = await client.get_index_endpoint()
@@ -20768,6 +20804,8 @@ async def test_get_index_endpoint_async(
                 display_name="display_name_value",
                 description="description_value",
                 state=warehouse.IndexEndpoint.State.CREATING,
+                satisfies_pzs=True,
+                satisfies_pzi=True,
             )
         )
         response = await client.get_index_endpoint(request)
@@ -20784,6 +20822,8 @@ async def test_get_index_endpoint_async(
     assert response.display_name == "display_name_value"
     assert response.description == "description_value"
     assert response.state == warehouse.IndexEndpoint.State.CREATING
+    assert response.satisfies_pzs is True
+    assert response.satisfies_pzi is True
 
 
 @pytest.mark.asyncio
@@ -29750,6 +29790,8 @@ def test_create_index_rest(request_type):
         "create_time": {"seconds": 751, "nanos": 543},
         "update_time": {},
         "deployed_indexes": [{"index_endpoint": "index_endpoint_value"}],
+        "satisfies_pzs": True,
+        "satisfies_pzi": True,
     }
     # The version of a generated dependency at test runtime may differ from the version used during generation.
     # Delete any fields which are not present in the current runtime dependency
@@ -30141,6 +30183,8 @@ def test_update_index_rest(request_type):
         "create_time": {"seconds": 751, "nanos": 543},
         "update_time": {},
         "deployed_indexes": [{"index_endpoint": "index_endpoint_value"}],
+        "satisfies_pzs": True,
+        "satisfies_pzi": True,
     }
     # The version of a generated dependency at test runtime may differ from the version used during generation.
     # Delete any fields which are not present in the current runtime dependency
@@ -30530,6 +30574,8 @@ def test_get_index_rest(request_type):
             display_name="display_name_value",
             description="description_value",
             state=warehouse.Index.State.CREATING,
+            satisfies_pzs=True,
+            satisfies_pzi=True,
             entire_corpus=True,
         )
 
@@ -30550,6 +30596,8 @@ def test_get_index_rest(request_type):
     assert response.display_name == "display_name_value"
     assert response.description == "description_value"
     assert response.state == warehouse.Index.State.CREATING
+    assert response.satisfies_pzs is True
+    assert response.satisfies_pzi is True
 
 
 def test_get_index_rest_use_cached_wrapped_rpc():
@@ -31503,6 +31551,8 @@ def test_create_corpus_rest(request_type):
         "default_ttl": {"seconds": 751, "nanos": 543},
         "type_": 1,
         "search_capability_setting": {"search_capabilities": [{"type_": 1}]},
+        "satisfies_pzs": True,
+        "satisfies_pzi": True,
     }
     # The version of a generated dependency at test runtime may differ from the version used during generation.
     # Delete any fields which are not present in the current runtime dependency
@@ -31884,6 +31934,8 @@ def test_get_corpus_rest(request_type):
             display_name="display_name_value",
             description="description_value",
             type_=warehouse.Corpus.Type.STREAM_VIDEO,
+            satisfies_pzs=True,
+            satisfies_pzi=True,
         )
 
         # Wrap the value into a proper Response obj
@@ -31903,6 +31955,8 @@ def test_get_corpus_rest(request_type):
     assert response.display_name == "display_name_value"
     assert response.description == "description_value"
     assert response.type_ == warehouse.Corpus.Type.STREAM_VIDEO
+    assert response.satisfies_pzs is True
+    assert response.satisfies_pzi is True
 
 
 def test_get_corpus_rest_use_cached_wrapped_rpc():
@@ -32183,6 +32237,8 @@ def test_update_corpus_rest(request_type):
         "default_ttl": {"seconds": 751, "nanos": 543},
         "type_": 1,
         "search_capability_setting": {"search_capabilities": [{"type_": 1}]},
+        "satisfies_pzs": True,
+        "satisfies_pzi": True,
     }
     # The version of a generated dependency at test runtime may differ from the version used during generation.
     # Delete any fields which are not present in the current runtime dependency
@@ -32261,6 +32317,8 @@ def get_message_fields(field):
             display_name="display_name_value",
             description="description_value",
             type_=warehouse.Corpus.Type.STREAM_VIDEO,
+            satisfies_pzs=True,
+            satisfies_pzi=True,
         )
 
         # Wrap the value into a proper Response obj
@@ -32280,6 +32338,8 @@ def get_message_fields(field):
     assert response.display_name == "display_name_value"
     assert response.description == "description_value"
     assert response.type_ == warehouse.Corpus.Type.STREAM_VIDEO
+    assert response.satisfies_pzs is True
+    assert response.satisfies_pzi is True
 
 
 def test_update_corpus_rest_use_cached_wrapped_rpc():
@@ -41934,6 +41994,8 @@ def test_create_index_endpoint_rest(request_type):
         "labels": {},
         "create_time": {"seconds": 751, "nanos": 543},
         "update_time": {},
+        "satisfies_pzs": True,
+        "satisfies_pzi": True,
     }
     # The version of a generated dependency at test runtime may differ from the version used during generation.
     # Delete any fields which are not present in the current runtime dependency
@@ -42329,6 +42391,8 @@ def test_get_index_endpoint_rest(request_type):
             display_name="display_name_value",
             description="description_value",
             state=warehouse.IndexEndpoint.State.CREATING,
+            satisfies_pzs=True,
+            satisfies_pzi=True,
         )
 
         # Wrap the value into a proper Response obj
@@ -42348,6 +42412,8 @@ def test_get_index_endpoint_rest(request_type):
     assert response.display_name == "display_name_value"
     assert response.description == "description_value"
     assert response.state == warehouse.IndexEndpoint.State.CREATING
+    assert response.satisfies_pzs is True
+    assert response.satisfies_pzi is True
 
 
 def test_get_index_endpoint_rest_use_cached_wrapped_rpc():
@@ -43024,6 +43090,8 @@ def test_update_index_endpoint_rest(request_type):
         "labels": {},
         "create_time": {"seconds": 751, "nanos": 543},
         "update_time": {},
+        "satisfies_pzs": True,
+        "satisfies_pzi": True,
     }
     # The version of a generated dependency at test runtime may differ from the version used during generation.
     # Delete any fields which are not present in the current runtime dependency
diff --git a/packages/google-shopping-css/CHANGELOG.md b/packages/google-shopping-css/CHANGELOG.md
index e18689dcec95..9150653216a2 100644
--- a/packages/google-shopping-css/CHANGELOG.md
+++ b/packages/google-shopping-css/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [0.1.8](https://github.com/googleapis/google-cloud-python/compare/google-shopping-css-v0.1.7...google-shopping-css-v0.1.8) (2024-08-22)
+
+
+### Documentation
+
+* [google-shopping-css] update `Certification` field descriptions ([#13027](https://github.com/googleapis/google-cloud-python/issues/13027)) ([70e2dd5](https://github.com/googleapis/google-cloud-python/commit/70e2dd5f024dd5c94a5e02b442bbab7e6e5f38fe))
+
 ## [0.1.7](https://github.com/googleapis/google-cloud-python/compare/google-shopping-css-v0.1.6...google-shopping-css-v0.1.7) (2024-07-30)
 
 
diff --git a/packages/google-shopping-css/google/shopping/css/gapic_version.py b/packages/google-shopping-css/google/shopping/css/gapic_version.py
index 558c8aab67c5..ec8d212c9160 100644
--- a/packages/google-shopping-css/google/shopping/css/gapic_version.py
+++ b/packages/google-shopping-css/google/shopping/css/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "0.0.0"  # {x-release-please-version}
+__version__ = "0.1.8"  # {x-release-please-version}
diff --git a/packages/google-shopping-css/google/shopping/css_v1/gapic_version.py b/packages/google-shopping-css/google/shopping/css_v1/gapic_version.py
index 558c8aab67c5..ec8d212c9160 100644
--- a/packages/google-shopping-css/google/shopping/css_v1/gapic_version.py
+++ b/packages/google-shopping-css/google/shopping/css_v1/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "0.0.0"  # {x-release-please-version}
+__version__ = "0.1.8"  # {x-release-please-version}
diff --git a/packages/google-shopping-css/google/shopping/css_v1/types/css_product_common.py b/packages/google-shopping-css/google/shopping/css_v1/types/css_product_common.py
index cec3dd7281db..ca3f7734688f 100644
--- a/packages/google-shopping-css/google/shopping/css_v1/types/css_product_common.py
+++ b/packages/google-shopping-css/google/shopping/css_v1/types/css_product_common.py
@@ -494,15 +494,27 @@ class Attributes(proto.Message):
 
 
 class Certification(proto.Message):
-    r"""The certification for the product.
+    r"""The certification for the product. Use the this attribute to
+    describe certifications, such as energy efficiency ratings,
+    associated with a product.
 
     Attributes:
         name (str):
-            Name of the certification.
+            The name of the certification. At this time,
+            the most common value is "EPREL", which
+            represents energy efficiency certifications in
+            the EU European Registry for Energy Labeling
+            (EPREL) database.
         authority (str):
-            Name of the certification body.
+            The authority or certification body responsible for issuing
+            the certification. At this time, the most common value is
+            "EC" or “European_Commission” for energy labels in the EU.
         code (str):
-            A unique code to identify the certification.
+            The code of the certification. For example,
+            for the EPREL certificate with the link
+            https://eprel.ec.europa.eu/screen/product/dishwashers2019/123456
+            the code is 123456. The code is required for
+            European Energy Labels.
     """
 
     name: str = proto.Field(
diff --git a/packages/google-shopping-css/samples/generated_samples/snippet_metadata_google.shopping.css.v1.json b/packages/google-shopping-css/samples/generated_samples/snippet_metadata_google.shopping.css.v1.json
index 5b682921bee5..301d93f4bbc4 100644
--- a/packages/google-shopping-css/samples/generated_samples/snippet_metadata_google.shopping.css.v1.json
+++ b/packages/google-shopping-css/samples/generated_samples/snippet_metadata_google.shopping.css.v1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-shopping-css",
-    "version": "0.1.0"
+    "version": "0.1.8"
   },
   "snippets": [
     {
diff --git a/release-please-config.json b/release-please-config.json
index fcf90e2a8f7e..ea9a89e5e9fc 100644
--- a/release-please-config.json
+++ b/release-please-config.json
@@ -1542,7 +1542,13 @@
             "component": "google-cloud-gke-connect-gateway",
             "extra-files": [
                 "google/cloud/gkeconnect/gateway/gapic_version.py",
+                "google/cloud/gkeconnect/gateway_v1/gapic_version.py",
                 "google/cloud/gkeconnect/gateway_v1beta1/gapic_version.py",
+                {
+                    "jsonpath": "$.clientLibrary.version",
+                    "path": "samples/generated_samples/snippet_metadata_google.cloud.gkeconnect.gateway.v1.json",
+                    "type": "json"
+                },
                 {
                     "jsonpath": "$.clientLibrary.version",
                     "path": "samples/generated_samples/snippet_metadata_google.cloud.gkeconnect.gateway.v1beta1.json",
diff --git a/renovate.json b/renovate.json
index a35fc4d36c4e..789608ba73c9 100644
--- a/renovate.json
+++ b/renovate.json
@@ -6,6 +6,7 @@
     "schedule:weekly"
   ],
   "ignorePaths": [
-    ".kokoro/requirements.txt"
+    ".kokoro/requirements.txt",
+    ".kokoro/requirements-aoss.txt"
   ]
 }