diff --git a/packages/google-cloud-beyondcorp-clientconnectorservices/google/cloud/beyondcorp_clientconnectorservices_v1/services/client_connector_services_service/transports/rest.py b/packages/google-cloud-beyondcorp-clientconnectorservices/google/cloud/beyondcorp_clientconnectorservices_v1/services/client_connector_services_service/transports/rest.py
index 18eec1703988..c72b3454c7fe 100644
--- a/packages/google-cloud-beyondcorp-clientconnectorservices/google/cloud/beyondcorp_clientconnectorservices_v1/services/client_connector_services_service/transports/rest.py
+++ b/packages/google-cloud-beyondcorp-clientconnectorservices/google/cloud/beyondcorp_clientconnectorservices_v1/services/client_connector_services_service/transports/rest.py
@@ -17,7 +17,7 @@
 import dataclasses
 import json  # type: ignore
 import re
-from typing import Callable, Dict, List, Optional, Sequence, Tuple, Union
+from typing import Any, Callable, Dict, List, Optional, Sequence, Tuple, Union
 import warnings
 
 from google.api_core import (
@@ -258,7 +258,7 @@ def pre_get_location(
         self,
         request: locations_pb2.GetLocationRequest,
         metadata: Sequence[Tuple[str, str]],
-    ) -> locations_pb2.Location:
+    ) -> Tuple[locations_pb2.GetLocationRequest, Sequence[Tuple[str, str]]]:
         """Pre-rpc interceptor for get_location
 
         Override in a subclass to manipulate the request or metadata
@@ -267,7 +267,7 @@ def pre_get_location(
         return request, metadata
 
     def post_get_location(
-        self, response: locations_pb2.GetLocationRequest
+        self, response: locations_pb2.Location
     ) -> locations_pb2.Location:
         """Post-rpc interceptor for get_location
 
@@ -281,7 +281,7 @@ def pre_list_locations(
         self,
         request: locations_pb2.ListLocationsRequest,
         metadata: Sequence[Tuple[str, str]],
-    ) -> locations_pb2.ListLocationsResponse:
+    ) -> Tuple[locations_pb2.ListLocationsRequest, Sequence[Tuple[str, str]]]:
         """Pre-rpc interceptor for list_locations
 
         Override in a subclass to manipulate the request or metadata
@@ -290,7 +290,7 @@ def pre_list_locations(
         return request, metadata
 
     def post_list_locations(
-        self, response: locations_pb2.ListLocationsRequest
+        self, response: locations_pb2.ListLocationsResponse
     ) -> locations_pb2.ListLocationsResponse:
         """Post-rpc interceptor for list_locations
 
@@ -304,7 +304,7 @@ def pre_get_iam_policy(
         self,
         request: iam_policy_pb2.GetIamPolicyRequest,
         metadata: Sequence[Tuple[str, str]],
-    ) -> policy_pb2.Policy:
+    ) -> Tuple[iam_policy_pb2.GetIamPolicyRequest, Sequence[Tuple[str, str]]]:
         """Pre-rpc interceptor for get_iam_policy
 
         Override in a subclass to manipulate the request or metadata
@@ -312,9 +312,7 @@ def pre_get_iam_policy(
         """
         return request, metadata
 
-    def post_get_iam_policy(
-        self, response: iam_policy_pb2.GetIamPolicyRequest
-    ) -> policy_pb2.Policy:
+    def post_get_iam_policy(self, response: policy_pb2.Policy) -> policy_pb2.Policy:
         """Post-rpc interceptor for get_iam_policy
 
         Override in a subclass to manipulate the response
@@ -327,7 +325,7 @@ def pre_set_iam_policy(
         self,
         request: iam_policy_pb2.SetIamPolicyRequest,
         metadata: Sequence[Tuple[str, str]],
-    ) -> policy_pb2.Policy:
+    ) -> Tuple[iam_policy_pb2.SetIamPolicyRequest, Sequence[Tuple[str, str]]]:
         """Pre-rpc interceptor for set_iam_policy
 
         Override in a subclass to manipulate the request or metadata
@@ -335,9 +333,7 @@ def pre_set_iam_policy(
         """
         return request, metadata
 
-    def post_set_iam_policy(
-        self, response: iam_policy_pb2.SetIamPolicyRequest
-    ) -> policy_pb2.Policy:
+    def post_set_iam_policy(self, response: policy_pb2.Policy) -> policy_pb2.Policy:
         """Post-rpc interceptor for set_iam_policy
 
         Override in a subclass to manipulate the response
@@ -350,7 +346,7 @@ def pre_test_iam_permissions(
         self,
         request: iam_policy_pb2.TestIamPermissionsRequest,
         metadata: Sequence[Tuple[str, str]],
-    ) -> iam_policy_pb2.TestIamPermissionsResponse:
+    ) -> Tuple[iam_policy_pb2.TestIamPermissionsRequest, Sequence[Tuple[str, str]]]:
         """Pre-rpc interceptor for test_iam_permissions
 
         Override in a subclass to manipulate the request or metadata
@@ -359,7 +355,7 @@ def pre_test_iam_permissions(
         return request, metadata
 
     def post_test_iam_permissions(
-        self, response: iam_policy_pb2.TestIamPermissionsRequest
+        self, response: iam_policy_pb2.TestIamPermissionsResponse
     ) -> iam_policy_pb2.TestIamPermissionsResponse:
         """Post-rpc interceptor for test_iam_permissions
 
@@ -373,7 +369,7 @@ def pre_cancel_operation(
         self,
         request: operations_pb2.CancelOperationRequest,
         metadata: Sequence[Tuple[str, str]],
-    ) -> None:
+    ) -> Tuple[operations_pb2.CancelOperationRequest, Sequence[Tuple[str, str]]]:
         """Pre-rpc interceptor for cancel_operation
 
         Override in a subclass to manipulate the request or metadata
@@ -381,9 +377,7 @@ def pre_cancel_operation(
         """
         return request, metadata
 
-    def post_cancel_operation(
-        self, response: operations_pb2.CancelOperationRequest
-    ) -> None:
+    def post_cancel_operation(self, response: None) -> None:
         """Post-rpc interceptor for cancel_operation
 
         Override in a subclass to manipulate the response
@@ -396,7 +390,7 @@ def pre_delete_operation(
         self,
         request: operations_pb2.DeleteOperationRequest,
         metadata: Sequence[Tuple[str, str]],
-    ) -> None:
+    ) -> Tuple[operations_pb2.DeleteOperationRequest, Sequence[Tuple[str, str]]]:
         """Pre-rpc interceptor for delete_operation
 
         Override in a subclass to manipulate the request or metadata
@@ -404,9 +398,7 @@ def pre_delete_operation(
         """
         return request, metadata
 
-    def post_delete_operation(
-        self, response: operations_pb2.DeleteOperationRequest
-    ) -> None:
+    def post_delete_operation(self, response: None) -> None:
         """Post-rpc interceptor for delete_operation
 
         Override in a subclass to manipulate the response
@@ -419,7 +411,7 @@ def pre_get_operation(
         self,
         request: operations_pb2.GetOperationRequest,
         metadata: Sequence[Tuple[str, str]],
-    ) -> operations_pb2.Operation:
+    ) -> Tuple[operations_pb2.GetOperationRequest, Sequence[Tuple[str, str]]]:
         """Pre-rpc interceptor for get_operation
 
         Override in a subclass to manipulate the request or metadata
@@ -428,7 +420,7 @@ def pre_get_operation(
         return request, metadata
 
     def post_get_operation(
-        self, response: operations_pb2.GetOperationRequest
+        self, response: operations_pb2.Operation
     ) -> operations_pb2.Operation:
         """Post-rpc interceptor for get_operation
 
@@ -442,7 +434,7 @@ def pre_list_operations(
         self,
         request: operations_pb2.ListOperationsRequest,
         metadata: Sequence[Tuple[str, str]],
-    ) -> operations_pb2.ListOperationsResponse:
+    ) -> Tuple[operations_pb2.ListOperationsRequest, Sequence[Tuple[str, str]]]:
         """Pre-rpc interceptor for list_operations
 
         Override in a subclass to manipulate the request or metadata
@@ -451,7 +443,7 @@ def pre_list_operations(
         return request, metadata
 
     def post_list_operations(
-        self, response: operations_pb2.ListOperationsRequest
+        self, response: operations_pb2.ListOperationsResponse
     ) -> operations_pb2.ListOperationsResponse:
         """Post-rpc interceptor for list_operations
 
@@ -630,7 +622,7 @@ class _CreateClientConnectorService(ClientConnectorServicesServiceRestStub):
         def __hash__(self):
             return hash("CreateClientConnectorService")
 
-        __REQUIRED_FIELDS_DEFAULT_VALUES: Dict[str, str] = {}
+        __REQUIRED_FIELDS_DEFAULT_VALUES: Dict[str, Any] = {}
 
         @classmethod
         def _get_unset_required_fields(cls, message_dict):
@@ -733,7 +725,7 @@ class _DeleteClientConnectorService(ClientConnectorServicesServiceRestStub):
         def __hash__(self):
             return hash("DeleteClientConnectorService")
 
-        __REQUIRED_FIELDS_DEFAULT_VALUES: Dict[str, str] = {}
+        __REQUIRED_FIELDS_DEFAULT_VALUES: Dict[str, Any] = {}
 
         @classmethod
         def _get_unset_required_fields(cls, message_dict):
@@ -827,7 +819,7 @@ class _GetClientConnectorService(ClientConnectorServicesServiceRestStub):
         def __hash__(self):
             return hash("GetClientConnectorService")
 
-        __REQUIRED_FIELDS_DEFAULT_VALUES: Dict[str, str] = {}
+        __REQUIRED_FIELDS_DEFAULT_VALUES: Dict[str, Any] = {}
 
         @classmethod
         def _get_unset_required_fields(cls, message_dict):
@@ -924,7 +916,7 @@ class _ListClientConnectorServices(ClientConnectorServicesServiceRestStub):
         def __hash__(self):
             return hash("ListClientConnectorServices")
 
-        __REQUIRED_FIELDS_DEFAULT_VALUES: Dict[str, str] = {}
+        __REQUIRED_FIELDS_DEFAULT_VALUES: Dict[str, Any] = {}
 
         @classmethod
         def _get_unset_required_fields(cls, message_dict):
@@ -1025,7 +1017,7 @@ class _UpdateClientConnectorService(ClientConnectorServicesServiceRestStub):
         def __hash__(self):
             return hash("UpdateClientConnectorService")
 
-        __REQUIRED_FIELDS_DEFAULT_VALUES: Dict[str, str] = {
+        __REQUIRED_FIELDS_DEFAULT_VALUES: Dict[str, Any] = {
             "updateMask": {},
         }
 
diff --git a/packages/google-cloud-beyondcorp-clientconnectorservices/google/cloud/beyondcorp_clientconnectorservices_v1/types/client_connector_services_service.py b/packages/google-cloud-beyondcorp-clientconnectorservices/google/cloud/beyondcorp_clientconnectorservices_v1/types/client_connector_services_service.py
index bfaf305f19fe..ab2bc4621cf2 100644
--- a/packages/google-cloud-beyondcorp-clientconnectorservices/google/cloud/beyondcorp_clientconnectorservices_v1/types/client_connector_services_service.py
+++ b/packages/google-cloud-beyondcorp-clientconnectorservices/google/cloud/beyondcorp_clientconnectorservices_v1/types/client_connector_services_service.py
@@ -13,6 +13,8 @@
 # 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 field_mask_pb2  # type: ignore