@@ -367,6 +367,12 @@ async def search_versions(
         # Done; return the response.
         return response
 
+    async def __aenter__(self):
+        return self
+
+    async def __aexit__(self, exc_type, exc, tb):
+        await self.transport.close()
+
 
 try:
     DEFAULT_CLIENT_INFO = gapic_v1.client_info.ClientInfo(
 
@@ -388,10 +388,7 @@ def __init__(
                 client_cert_source_for_mtls=client_cert_source_func,
                 quota_project_id=client_options.quota_project_id,
                 client_info=client_info,
-                always_use_jwt_access=(
-                    Transport == type(self).get_transport_class("grpc")
-                    or Transport == type(self).get_transport_class("grpc_asyncio")
-                ),
+                always_use_jwt_access=True,
             )
 
     def search_catalogs(
@@ -577,6 +574,19 @@ def search_versions(
         # Done; return the response.
         return response
 
+    def __enter__(self):
+        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()
+
 
 try:
     DEFAULT_CLIENT_INFO = gapic_v1.client_info.ClientInfo(
 
@@ -165,6 +165,15 @@ def _prep_wrapped_messages(self, 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 search_catalogs(
         self,
 
@@ -336,5 +336,8 @@ def search_versions(
             )
         return self._stubs["search_versions"]
 
+    def close(self):
+        self.grpc_channel.close()
+
 
 __all__ = ("PrivateCatalogGrpcTransport",)
@@ -342,5 +342,8 @@ def search_versions(
             )
         return self._stubs["search_versions"]
 
+    def close(self):
+        return self.grpc_channel.close()
+
 
 __all__ = ("PrivateCatalogGrpcAsyncIOTransport",)
@@ -435,6 +435,7 @@ class Product(proto.Message):
 
 class AssetReference(proto.Message):
     r"""Defines the reference of an asset belonging to a product.
+
     Attributes:
         id (str):
             Output only. A unique identifier among asset
@@ -502,6 +503,7 @@ class AssetValidationState(proto.Enum):
 
 class Inputs(proto.Message):
     r"""Defines definition of input parameters of asset templates.
+
     Attributes:
         parameters (google.protobuf.struct_pb2.Struct):
             Output only. The JSON schema defining the
@@ -513,6 +515,7 @@ class Inputs(proto.Message):
 
 class GcsSource(proto.Message):
     r"""Defines how to access Cloud Storage source.
+
     Attributes:
         gcs_path (str):
             Output only. the cloud storage object path.
@@ -532,6 +535,7 @@ class GcsSource(proto.Message):
 
 class GitSource(proto.Message):
     r"""Defines how to access a Git Source.
+
     Attributes:
         repo (str):
             Location of the Git repo to build.
 
@@ -29,6 +29,7 @@
 from google.api_core import gapic_v1
 from google.api_core import grpc_helpers
 from google.api_core import grpc_helpers_async
+from google.api_core import path_template
 from google.auth import credentials as ga_credentials
 from google.auth.exceptions import MutualTLSChannelError
 from google.cloud.privatecatalog_v1beta1.services.private_catalog import (
@@ -1431,6 +1432,9 @@ def test_private_catalog_base_transport():
         with pytest.raises(NotImplementedError):
             getattr(transport, method)(request=object())
 
+    with pytest.raises(NotImplementedError):
+        transport.close()
+
 
 @requires_google_auth_gte_1_25_0
 def test_private_catalog_base_transport_with_credentials_file():
@@ -1949,3 +1953,49 @@ def test_client_withDEFAULT_CLIENT_INFO():
             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 = PrivateCatalogAsyncClient(
+        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 = PrivateCatalogClient(
+            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 = PrivateCatalogClient(
+            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()
Original file line number	Diff line number	Diff line change
`@@ -336,5 +336,8 @@ def search_versions(`
`336`	`336`	`)`
`337`	`337`	`return self._stubs["search_versions"]`
`338`	`338`
	`339`	`+ def close(self):`
	`340`	`+ self.grpc_channel.close()`
	`341`	`+`
`339`	`342`
`340`	`343`	`__all__ = ("PrivateCatalogGrpcTransport",)`
Original file line number	Diff line number	Diff line change
`@@ -342,5 +342,8 @@ def search_versions(`
`342`	`342`	`)`
`343`	`343`	`return self._stubs["search_versions"]`
`344`	`344`
	`345`	`+ def close(self):`
	`346`	`+ return self.grpc_channel.close()`
	`347`	`+`
`345`	`348`
`346`	`349`	`__all__ = ("PrivateCatalogGrpcAsyncIOTransport",)`