diff --git a/packages/google-area120-tables/docs/tables_v1alpha1/types.rst b/packages/google-area120-tables/docs/tables_v1alpha1/types.rst
index 440ad8b90d55..9c77b6c0de0d 100644
--- a/packages/google-area120-tables/docs/tables_v1alpha1/types.rst
+++ b/packages/google-area120-tables/docs/tables_v1alpha1/types.rst
@@ -3,5 +3,4 @@ Types for Google Area120 Tables v1alpha1 API
 
 .. automodule:: google.area120.tables_v1alpha1.types
     :members:
-    :undoc-members:
     :show-inheritance:
diff --git a/packages/google-area120-tables/google/area120/tables_v1alpha1/services/tables_service/async_client.py b/packages/google-area120-tables/google/area120/tables_v1alpha1/services/tables_service/async_client.py
index c2826e82d001..c787d2db2a96 100644
--- a/packages/google-area120-tables/google/area120/tables_v1alpha1/services/tables_service/async_client.py
+++ b/packages/google-area120-tables/google/area120/tables_v1alpha1/services/tables_service/async_client.py
@@ -16,7 +16,17 @@
 from collections import OrderedDict
 import functools
 import re
-from typing import Dict, Mapping, Optional, Sequence, Tuple, Type, Union
+from typing import (
+    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
@@ -179,9 +189,9 @@ def transport(self) -> TablesServiceTransport:
     def __init__(
         self,
         *,
-        credentials: ga_credentials.Credentials = None,
+        credentials: Optional[ga_credentials.Credentials] = None,
         transport: Union[str, TablesServiceTransport] = "grpc_asyncio",
-        client_options: ClientOptions = None,
+        client_options: Optional[ClientOptions] = None,
         client_info: gapic_v1.client_info.ClientInfo = DEFAULT_CLIENT_INFO,
     ) -> None:
         """Instantiates the tables service client.
@@ -225,11 +235,11 @@ def __init__(
 
     async def get_table(
         self,
-        request: Union[tables.GetTableRequest, dict] = None,
+        request: Optional[Union[tables.GetTableRequest, dict]] = None,
         *,
-        name: str = None,
+        name: Optional[str] = None,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: float = None,
+        timeout: Optional[float] = None,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> tables.Table:
         r"""Gets a table. Returns NOT_FOUND if the table does not exist.
@@ -261,7 +271,7 @@ async def sample_get_table():
                 print(response)
 
         Args:
-            request (Union[google.area120.tables_v1alpha1.types.GetTableRequest, dict]):
+            request (Optional[Union[google.area120.tables_v1alpha1.types.GetTableRequest, dict]]):
                 The request object. Request message for
                 TablesService.GetTable.
             name (:class:`str`):
@@ -325,10 +335,10 @@ async def sample_get_table():
 
     async def list_tables(
         self,
-        request: Union[tables.ListTablesRequest, dict] = None,
+        request: Optional[Union[tables.ListTablesRequest, dict]] = None,
         *,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: float = None,
+        timeout: Optional[float] = None,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> pagers.ListTablesAsyncPager:
         r"""Lists tables for the user.
@@ -360,7 +370,7 @@ async def sample_list_tables():
                     print(response)
 
         Args:
-            request (Union[google.area120.tables_v1alpha1.types.ListTablesRequest, dict]):
+            request (Optional[Union[google.area120.tables_v1alpha1.types.ListTablesRequest, dict]]):
                 The request object. Request message for
                 TablesService.ListTables.
             retry (google.api_core.retry.Retry): Designation of what errors, if any,
@@ -411,11 +421,11 @@ async def sample_list_tables():
 
     async def get_workspace(
         self,
-        request: Union[tables.GetWorkspaceRequest, dict] = None,
+        request: Optional[Union[tables.GetWorkspaceRequest, dict]] = None,
         *,
-        name: str = None,
+        name: Optional[str] = None,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: float = None,
+        timeout: Optional[float] = None,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> tables.Workspace:
         r"""Gets a workspace. Returns NOT_FOUND if the workspace does not
@@ -448,7 +458,7 @@ async def sample_get_workspace():
                 print(response)
 
         Args:
-            request (Union[google.area120.tables_v1alpha1.types.GetWorkspaceRequest, dict]):
+            request (Optional[Union[google.area120.tables_v1alpha1.types.GetWorkspaceRequest, dict]]):
                 The request object. Request message for
                 TablesService.GetWorkspace.
             name (:class:`str`):
@@ -513,10 +523,10 @@ async def sample_get_workspace():
 
     async def list_workspaces(
         self,
-        request: Union[tables.ListWorkspacesRequest, dict] = None,
+        request: Optional[Union[tables.ListWorkspacesRequest, dict]] = None,
         *,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: float = None,
+        timeout: Optional[float] = None,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> pagers.ListWorkspacesAsyncPager:
         r"""Lists workspaces for the user.
@@ -548,7 +558,7 @@ async def sample_list_workspaces():
                     print(response)
 
         Args:
-            request (Union[google.area120.tables_v1alpha1.types.ListWorkspacesRequest, dict]):
+            request (Optional[Union[google.area120.tables_v1alpha1.types.ListWorkspacesRequest, dict]]):
                 The request object. Request message for
                 TablesService.ListWorkspaces.
             retry (google.api_core.retry.Retry): Designation of what errors, if any,
@@ -599,11 +609,11 @@ async def sample_list_workspaces():
 
     async def get_row(
         self,
-        request: Union[tables.GetRowRequest, dict] = None,
+        request: Optional[Union[tables.GetRowRequest, dict]] = None,
         *,
-        name: str = None,
+        name: Optional[str] = None,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: float = None,
+        timeout: Optional[float] = None,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> tables.Row:
         r"""Gets a row. Returns NOT_FOUND if the row does not exist in the
@@ -636,7 +646,7 @@ async def sample_get_row():
                 print(response)
 
         Args:
-            request (Union[google.area120.tables_v1alpha1.types.GetRowRequest, dict]):
+            request (Optional[Union[google.area120.tables_v1alpha1.types.GetRowRequest, dict]]):
                 The request object. Request message for
                 TablesService.GetRow.
             name (:class:`str`):
@@ -701,11 +711,11 @@ async def sample_get_row():
 
     async def list_rows(
         self,
-        request: Union[tables.ListRowsRequest, dict] = None,
+        request: Optional[Union[tables.ListRowsRequest, dict]] = None,
         *,
-        parent: str = None,
+        parent: Optional[str] = None,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: float = None,
+        timeout: Optional[float] = None,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> pagers.ListRowsAsyncPager:
         r"""Lists rows in a table. Returns NOT_FOUND if the table does not
@@ -739,7 +749,7 @@ async def sample_list_rows():
                     print(response)
 
         Args:
-            request (Union[google.area120.tables_v1alpha1.types.ListRowsRequest, dict]):
+            request (Optional[Union[google.area120.tables_v1alpha1.types.ListRowsRequest, dict]]):
                 The request object. Request message for
                 TablesService.ListRows.
             parent (:class:`str`):
@@ -817,12 +827,12 @@ async def sample_list_rows():
 
     async def create_row(
         self,
-        request: Union[tables.CreateRowRequest, dict] = None,
+        request: Optional[Union[tables.CreateRowRequest, dict]] = None,
         *,
-        parent: str = None,
-        row: tables.Row = None,
+        parent: Optional[str] = None,
+        row: Optional[tables.Row] = None,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: float = None,
+        timeout: Optional[float] = None,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> tables.Row:
         r"""Creates a row.
@@ -854,7 +864,7 @@ async def sample_create_row():
                 print(response)
 
         Args:
-            request (Union[google.area120.tables_v1alpha1.types.CreateRowRequest, dict]):
+            request (Optional[Union[google.area120.tables_v1alpha1.types.CreateRowRequest, dict]]):
                 The request object. Request message for
                 TablesService.CreateRow.
             parent (:class:`str`):
@@ -926,10 +936,10 @@ async def sample_create_row():
 
     async def batch_create_rows(
         self,
-        request: Union[tables.BatchCreateRowsRequest, dict] = None,
+        request: Optional[Union[tables.BatchCreateRowsRequest, dict]] = None,
         *,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: float = None,
+        timeout: Optional[float] = None,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> tables.BatchCreateRowsResponse:
         r"""Creates multiple rows.
@@ -965,7 +975,7 @@ async def sample_batch_create_rows():
                 print(response)
 
         Args:
-            request (Union[google.area120.tables_v1alpha1.types.BatchCreateRowsRequest, dict]):
+            request (Optional[Union[google.area120.tables_v1alpha1.types.BatchCreateRowsRequest, dict]]):
                 The request object. Request message for
                 TablesService.BatchCreateRows.
             retry (google.api_core.retry.Retry): Designation of what errors, if any,
@@ -1010,12 +1020,12 @@ async def sample_batch_create_rows():
 
     async def update_row(
         self,
-        request: Union[tables.UpdateRowRequest, dict] = None,
+        request: Optional[Union[tables.UpdateRowRequest, dict]] = None,
         *,
-        row: tables.Row = None,
-        update_mask: field_mask_pb2.FieldMask = None,
+        row: Optional[tables.Row] = None,
+        update_mask: Optional[field_mask_pb2.FieldMask] = None,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: float = None,
+        timeout: Optional[float] = None,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> tables.Row:
         r"""Updates a row.
@@ -1046,7 +1056,7 @@ async def sample_update_row():
                 print(response)
 
         Args:
-            request (Union[google.area120.tables_v1alpha1.types.UpdateRowRequest, dict]):
+            request (Optional[Union[google.area120.tables_v1alpha1.types.UpdateRowRequest, dict]]):
                 The request object. Request message for
                 TablesService.UpdateRow.
             row (:class:`google.area120.tables_v1alpha1.types.Row`):
@@ -1115,10 +1125,10 @@ async def sample_update_row():
 
     async def batch_update_rows(
         self,
-        request: Union[tables.BatchUpdateRowsRequest, dict] = None,
+        request: Optional[Union[tables.BatchUpdateRowsRequest, dict]] = None,
         *,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: float = None,
+        timeout: Optional[float] = None,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> tables.BatchUpdateRowsResponse:
         r"""Updates multiple rows.
@@ -1150,7 +1160,7 @@ async def sample_batch_update_rows():
                 print(response)
 
         Args:
-            request (Union[google.area120.tables_v1alpha1.types.BatchUpdateRowsRequest, dict]):
+            request (Optional[Union[google.area120.tables_v1alpha1.types.BatchUpdateRowsRequest, dict]]):
                 The request object. Request message for
                 TablesService.BatchUpdateRows.
             retry (google.api_core.retry.Retry): Designation of what errors, if any,
@@ -1195,11 +1205,11 @@ async def sample_batch_update_rows():
 
     async def delete_row(
         self,
-        request: Union[tables.DeleteRowRequest, dict] = None,
+        request: Optional[Union[tables.DeleteRowRequest, dict]] = None,
         *,
-        name: str = None,
+        name: Optional[str] = None,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: float = None,
+        timeout: Optional[float] = None,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> None:
         r"""Deletes a row.
@@ -1228,7 +1238,7 @@ async def sample_delete_row():
                 await client.delete_row(request=request)
 
         Args:
-            request (Union[google.area120.tables_v1alpha1.types.DeleteRowRequest, dict]):
+            request (Optional[Union[google.area120.tables_v1alpha1.types.DeleteRowRequest, dict]]):
                 The request object. Request message for
                 TablesService.DeleteRow
             name (:class:`str`):
@@ -1286,10 +1296,10 @@ async def sample_delete_row():
 
     async def batch_delete_rows(
         self,
-        request: Union[tables.BatchDeleteRowsRequest, dict] = None,
+        request: Optional[Union[tables.BatchDeleteRowsRequest, dict]] = None,
         *,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: float = None,
+        timeout: Optional[float] = None,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> None:
         r"""Deletes multiple rows.
@@ -1319,7 +1329,7 @@ async def sample_batch_delete_rows():
                 await client.batch_delete_rows(request=request)
 
         Args:
-            request (Union[google.area120.tables_v1alpha1.types.BatchDeleteRowsRequest, dict]):
+            request (Optional[Union[google.area120.tables_v1alpha1.types.BatchDeleteRowsRequest, dict]]):
                 The request object. Request message for
                 TablesService.BatchDeleteRows
             retry (google.api_core.retry.Retry): Designation of what errors, if any,
diff --git a/packages/google-area120-tables/google/area120/tables_v1alpha1/services/tables_service/client.py b/packages/google-area120-tables/google/area120/tables_v1alpha1/services/tables_service/client.py
index 09f2da1d545f..bf2242721b11 100644
--- a/packages/google-area120-tables/google/area120/tables_v1alpha1/services/tables_service/client.py
+++ b/packages/google-area120-tables/google/area120/tables_v1alpha1/services/tables_service/client.py
@@ -16,7 +16,18 @@
 from collections import OrderedDict
 import os
 import re
-from typing import Dict, Mapping, Optional, Sequence, Tuple, Type, Union, cast
+from typing import (
+    Dict,
+    Mapping,
+    MutableMapping,
+    MutableSequence,
+    Optional,
+    Sequence,
+    Tuple,
+    Type,
+    Union,
+    cast,
+)
 
 from google.api_core import client_options as client_options_lib
 from google.api_core import exceptions as core_exceptions
@@ -60,7 +71,7 @@ class TablesServiceClientMeta(type):
 
     def get_transport_class(
         cls,
-        label: str = None,
+        label: Optional[str] = None,
     ) -> Type[TablesServiceTransport]:
         """Returns an appropriate transport class.
 
@@ -374,7 +385,7 @@ def __init__(
         self,
         *,
         credentials: Optional[ga_credentials.Credentials] = None,
-        transport: Union[str, TablesServiceTransport, None] = None,
+        transport: Optional[Union[str, TablesServiceTransport]] = None,
         client_options: Optional[Union[client_options_lib.ClientOptions, dict]] = None,
         client_info: gapic_v1.client_info.ClientInfo = DEFAULT_CLIENT_INFO,
     ) -> None:
@@ -475,11 +486,11 @@ def __init__(
 
     def get_table(
         self,
-        request: Union[tables.GetTableRequest, dict] = None,
+        request: Optional[Union[tables.GetTableRequest, dict]] = None,
         *,
-        name: str = None,
+        name: Optional[str] = None,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: float = None,
+        timeout: Optional[float] = None,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> tables.Table:
         r"""Gets a table. Returns NOT_FOUND if the table does not exist.
@@ -575,10 +586,10 @@ def sample_get_table():
 
     def list_tables(
         self,
-        request: Union[tables.ListTablesRequest, dict] = None,
+        request: Optional[Union[tables.ListTablesRequest, dict]] = None,
         *,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: float = None,
+        timeout: Optional[float] = None,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> pagers.ListTablesPager:
         r"""Lists tables for the user.
@@ -662,11 +673,11 @@ def sample_list_tables():
 
     def get_workspace(
         self,
-        request: Union[tables.GetWorkspaceRequest, dict] = None,
+        request: Optional[Union[tables.GetWorkspaceRequest, dict]] = None,
         *,
-        name: str = None,
+        name: Optional[str] = None,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: float = None,
+        timeout: Optional[float] = None,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> tables.Workspace:
         r"""Gets a workspace. Returns NOT_FOUND if the workspace does not
@@ -764,10 +775,10 @@ def sample_get_workspace():
 
     def list_workspaces(
         self,
-        request: Union[tables.ListWorkspacesRequest, dict] = None,
+        request: Optional[Union[tables.ListWorkspacesRequest, dict]] = None,
         *,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: float = None,
+        timeout: Optional[float] = None,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> pagers.ListWorkspacesPager:
         r"""Lists workspaces for the user.
@@ -851,11 +862,11 @@ def sample_list_workspaces():
 
     def get_row(
         self,
-        request: Union[tables.GetRowRequest, dict] = None,
+        request: Optional[Union[tables.GetRowRequest, dict]] = None,
         *,
-        name: str = None,
+        name: Optional[str] = None,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: float = None,
+        timeout: Optional[float] = None,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> tables.Row:
         r"""Gets a row. Returns NOT_FOUND if the row does not exist in the
@@ -953,11 +964,11 @@ def sample_get_row():
 
     def list_rows(
         self,
-        request: Union[tables.ListRowsRequest, dict] = None,
+        request: Optional[Union[tables.ListRowsRequest, dict]] = None,
         *,
-        parent: str = None,
+        parent: Optional[str] = None,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: float = None,
+        timeout: Optional[float] = None,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> pagers.ListRowsPager:
         r"""Lists rows in a table. Returns NOT_FOUND if the table does not
@@ -1069,12 +1080,12 @@ def sample_list_rows():
 
     def create_row(
         self,
-        request: Union[tables.CreateRowRequest, dict] = None,
+        request: Optional[Union[tables.CreateRowRequest, dict]] = None,
         *,
-        parent: str = None,
-        row: tables.Row = None,
+        parent: Optional[str] = None,
+        row: Optional[tables.Row] = None,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: float = None,
+        timeout: Optional[float] = None,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> tables.Row:
         r"""Creates a row.
@@ -1178,10 +1189,10 @@ def sample_create_row():
 
     def batch_create_rows(
         self,
-        request: Union[tables.BatchCreateRowsRequest, dict] = None,
+        request: Optional[Union[tables.BatchCreateRowsRequest, dict]] = None,
         *,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: float = None,
+        timeout: Optional[float] = None,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> tables.BatchCreateRowsResponse:
         r"""Creates multiple rows.
@@ -1263,12 +1274,12 @@ def sample_batch_create_rows():
 
     def update_row(
         self,
-        request: Union[tables.UpdateRowRequest, dict] = None,
+        request: Optional[Union[tables.UpdateRowRequest, dict]] = None,
         *,
-        row: tables.Row = None,
-        update_mask: field_mask_pb2.FieldMask = None,
+        row: Optional[tables.Row] = None,
+        update_mask: Optional[field_mask_pb2.FieldMask] = None,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: float = None,
+        timeout: Optional[float] = None,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> tables.Row:
         r"""Updates a row.
@@ -1368,10 +1379,10 @@ def sample_update_row():
 
     def batch_update_rows(
         self,
-        request: Union[tables.BatchUpdateRowsRequest, dict] = None,
+        request: Optional[Union[tables.BatchUpdateRowsRequest, dict]] = None,
         *,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: float = None,
+        timeout: Optional[float] = None,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> tables.BatchUpdateRowsResponse:
         r"""Updates multiple rows.
@@ -1449,11 +1460,11 @@ def sample_batch_update_rows():
 
     def delete_row(
         self,
-        request: Union[tables.DeleteRowRequest, dict] = None,
+        request: Optional[Union[tables.DeleteRowRequest, dict]] = None,
         *,
-        name: str = None,
+        name: Optional[str] = None,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: float = None,
+        timeout: Optional[float] = None,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> None:
         r"""Deletes a row.
@@ -1540,10 +1551,10 @@ def sample_delete_row():
 
     def batch_delete_rows(
         self,
-        request: Union[tables.BatchDeleteRowsRequest, dict] = None,
+        request: Optional[Union[tables.BatchDeleteRowsRequest, dict]] = None,
         *,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: float = None,
+        timeout: Optional[float] = None,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> None:
         r"""Deletes multiple rows.
diff --git a/packages/google-area120-tables/google/area120/tables_v1alpha1/services/tables_service/transports/base.py b/packages/google-area120-tables/google/area120/tables_v1alpha1/services/tables_service/transports/base.py
index edfa7633d3c1..eed2888fe3e2 100644
--- a/packages/google-area120-tables/google/area120/tables_v1alpha1/services/tables_service/transports/base.py
+++ b/packages/google-area120-tables/google/area120/tables_v1alpha1/services/tables_service/transports/base.py
@@ -56,7 +56,7 @@ def __init__(
         self,
         *,
         host: str = DEFAULT_HOST,
-        credentials: ga_credentials.Credentials = None,
+        credentials: Optional[ga_credentials.Credentials] = None,
         credentials_file: Optional[str] = None,
         scopes: Optional[Sequence[str]] = None,
         quota_project_id: Optional[str] = None,
diff --git a/packages/google-area120-tables/google/area120/tables_v1alpha1/services/tables_service/transports/grpc.py b/packages/google-area120-tables/google/area120/tables_v1alpha1/services/tables_service/transports/grpc.py
index fef5d33112ce..b9cfa88b1688 100644
--- a/packages/google-area120-tables/google/area120/tables_v1alpha1/services/tables_service/transports/grpc.py
+++ b/packages/google-area120-tables/google/area120/tables_v1alpha1/services/tables_service/transports/grpc.py
@@ -60,14 +60,14 @@ def __init__(
         self,
         *,
         host: str = "area120tables.googleapis.com",
-        credentials: ga_credentials.Credentials = None,
-        credentials_file: str = None,
-        scopes: Sequence[str] = None,
-        channel: grpc.Channel = None,
-        api_mtls_endpoint: str = None,
-        client_cert_source: Callable[[], Tuple[bytes, bytes]] = None,
-        ssl_channel_credentials: grpc.ChannelCredentials = None,
-        client_cert_source_for_mtls: Callable[[], Tuple[bytes, bytes]] = None,
+        credentials: Optional[ga_credentials.Credentials] = None,
+        credentials_file: Optional[str] = None,
+        scopes: Optional[Sequence[str]] = None,
+        channel: Optional[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,
@@ -194,8 +194,8 @@ def __init__(
     def create_channel(
         cls,
         host: str = "area120tables.googleapis.com",
-        credentials: ga_credentials.Credentials = None,
-        credentials_file: str = None,
+        credentials: Optional[ga_credentials.Credentials] = None,
+        credentials_file: Optional[str] = None,
         scopes: Optional[Sequence[str]] = None,
         quota_project_id: Optional[str] = None,
         **kwargs,
diff --git a/packages/google-area120-tables/google/area120/tables_v1alpha1/services/tables_service/transports/grpc_asyncio.py b/packages/google-area120-tables/google/area120/tables_v1alpha1/services/tables_service/transports/grpc_asyncio.py
index e01eefce4777..b6a337aa7194 100644
--- a/packages/google-area120-tables/google/area120/tables_v1alpha1/services/tables_service/transports/grpc_asyncio.py
+++ b/packages/google-area120-tables/google/area120/tables_v1alpha1/services/tables_service/transports/grpc_asyncio.py
@@ -62,7 +62,7 @@ class TablesServiceGrpcAsyncIOTransport(TablesServiceTransport):
     def create_channel(
         cls,
         host: str = "area120tables.googleapis.com",
-        credentials: ga_credentials.Credentials = None,
+        credentials: Optional[ga_credentials.Credentials] = None,
         credentials_file: Optional[str] = None,
         scopes: Optional[Sequence[str]] = None,
         quota_project_id: Optional[str] = None,
@@ -105,15 +105,15 @@ def __init__(
         self,
         *,
         host: str = "area120tables.googleapis.com",
-        credentials: ga_credentials.Credentials = None,
+        credentials: Optional[ga_credentials.Credentials] = None,
         credentials_file: Optional[str] = None,
         scopes: Optional[Sequence[str]] = None,
-        channel: aio.Channel = None,
-        api_mtls_endpoint: str = None,
-        client_cert_source: Callable[[], Tuple[bytes, bytes]] = None,
-        ssl_channel_credentials: grpc.ChannelCredentials = None,
-        client_cert_source_for_mtls: Callable[[], Tuple[bytes, bytes]] = None,
-        quota_project_id=None,
+        channel: Optional[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,
diff --git a/packages/google-area120-tables/google/area120/tables_v1alpha1/services/tables_service/transports/rest.py b/packages/google-area120-tables/google/area120/tables_v1alpha1/services/tables_service/transports/rest.py
index 65e4ce8777c4..5e8d6088811d 100644
--- a/packages/google-area120-tables/google/area120/tables_v1alpha1/services/tables_service/transports/rest.py
+++ b/packages/google-area120-tables/google/area120/tables_v1alpha1/services/tables_service/transports/rest.py
@@ -416,10 +416,10 @@ def __init__(
         self,
         *,
         host: str = "area120tables.googleapis.com",
-        credentials: ga_credentials.Credentials = None,
-        credentials_file: str = None,
-        scopes: Sequence[str] = None,
-        client_cert_source_for_mtls: Callable[[], Tuple[bytes, bytes]] = None,
+        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,
@@ -511,7 +511,7 @@ def __call__(
             request: tables.BatchCreateRowsRequest,
             *,
             retry: OptionalRetry = gapic_v1.method.DEFAULT,
-            timeout: float = None,
+            timeout: Optional[float] = None,
             metadata: Sequence[Tuple[str, str]] = (),
         ) -> tables.BatchCreateRowsResponse:
             r"""Call the batch create rows method over HTTP.
@@ -610,7 +610,7 @@ def __call__(
             request: tables.BatchDeleteRowsRequest,
             *,
             retry: OptionalRetry = gapic_v1.method.DEFAULT,
-            timeout: float = None,
+            timeout: Optional[float] = None,
             metadata: Sequence[Tuple[str, str]] = (),
         ):
             r"""Call the batch delete rows method over HTTP.
@@ -695,7 +695,7 @@ def __call__(
             request: tables.BatchUpdateRowsRequest,
             *,
             retry: OptionalRetry = gapic_v1.method.DEFAULT,
-            timeout: float = None,
+            timeout: Optional[float] = None,
             metadata: Sequence[Tuple[str, str]] = (),
         ) -> tables.BatchUpdateRowsResponse:
             r"""Call the batch update rows method over HTTP.
@@ -794,7 +794,7 @@ def __call__(
             request: tables.CreateRowRequest,
             *,
             retry: OptionalRetry = gapic_v1.method.DEFAULT,
-            timeout: float = None,
+            timeout: Optional[float] = None,
             metadata: Sequence[Tuple[str, str]] = (),
         ) -> tables.Row:
             r"""Call the create row method over HTTP.
@@ -889,7 +889,7 @@ def __call__(
             request: tables.DeleteRowRequest,
             *,
             retry: OptionalRetry = gapic_v1.method.DEFAULT,
-            timeout: float = None,
+            timeout: Optional[float] = None,
             metadata: Sequence[Tuple[str, str]] = (),
         ):
             r"""Call the delete row method over HTTP.
@@ -963,7 +963,7 @@ def __call__(
             request: tables.GetRowRequest,
             *,
             retry: OptionalRetry = gapic_v1.method.DEFAULT,
-            timeout: float = None,
+            timeout: Optional[float] = None,
             metadata: Sequence[Tuple[str, str]] = (),
         ) -> tables.Row:
             r"""Call the get row method over HTTP.
@@ -1049,7 +1049,7 @@ def __call__(
             request: tables.GetTableRequest,
             *,
             retry: OptionalRetry = gapic_v1.method.DEFAULT,
-            timeout: float = None,
+            timeout: Optional[float] = None,
             metadata: Sequence[Tuple[str, str]] = (),
         ) -> tables.Table:
             r"""Call the get table method over HTTP.
@@ -1135,7 +1135,7 @@ def __call__(
             request: tables.GetWorkspaceRequest,
             *,
             retry: OptionalRetry = gapic_v1.method.DEFAULT,
-            timeout: float = None,
+            timeout: Optional[float] = None,
             metadata: Sequence[Tuple[str, str]] = (),
         ) -> tables.Workspace:
             r"""Call the get workspace method over HTTP.
@@ -1221,7 +1221,7 @@ def __call__(
             request: tables.ListRowsRequest,
             *,
             retry: OptionalRetry = gapic_v1.method.DEFAULT,
-            timeout: float = None,
+            timeout: Optional[float] = None,
             metadata: Sequence[Tuple[str, str]] = (),
         ) -> tables.ListRowsResponse:
             r"""Call the list rows method over HTTP.
@@ -1299,7 +1299,7 @@ def __call__(
             request: tables.ListTablesRequest,
             *,
             retry: OptionalRetry = gapic_v1.method.DEFAULT,
-            timeout: float = None,
+            timeout: Optional[float] = None,
             metadata: Sequence[Tuple[str, str]] = (),
         ) -> tables.ListTablesResponse:
             r"""Call the list tables method over HTTP.
@@ -1376,7 +1376,7 @@ def __call__(
             request: tables.ListWorkspacesRequest,
             *,
             retry: OptionalRetry = gapic_v1.method.DEFAULT,
-            timeout: float = None,
+            timeout: Optional[float] = None,
             metadata: Sequence[Tuple[str, str]] = (),
         ) -> tables.ListWorkspacesResponse:
             r"""Call the list workspaces method over HTTP.
@@ -1463,7 +1463,7 @@ def __call__(
             request: tables.UpdateRowRequest,
             *,
             retry: OptionalRetry = gapic_v1.method.DEFAULT,
-            timeout: float = None,
+            timeout: Optional[float] = None,
             metadata: Sequence[Tuple[str, str]] = (),
         ) -> tables.Row:
             r"""Call the update row method over HTTP.
diff --git a/packages/google-area120-tables/google/area120/tables_v1alpha1/types/tables.py b/packages/google-area120-tables/google/area120/tables_v1alpha1/types/tables.py
index f6f9023d25f1..83c2b6642956 100644
--- a/packages/google-area120-tables/google/area120/tables_v1alpha1/types/tables.py
+++ b/packages/google-area120-tables/google/area120/tables_v1alpha1/types/tables.py
@@ -13,6 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
+from typing import MutableMapping, MutableSequence
+
 from google.protobuf import field_mask_pb2  # type: ignore
 from google.protobuf import struct_pb2  # type: ignore
 import proto  # type: ignore
@@ -64,7 +66,7 @@ class GetTableRequest(proto.Message):
             Format: tables/{table}
     """
 
-    name = proto.Field(
+    name: str = proto.Field(
         proto.STRING,
         number=1,
     )
@@ -90,11 +92,11 @@ class ListTablesRequest(proto.Message):
             token.
     """
 
-    page_size = proto.Field(
+    page_size: int = proto.Field(
         proto.INT32,
         number=1,
     )
-    page_token = proto.Field(
+    page_token: str = proto.Field(
         proto.STRING,
         number=2,
     )
@@ -104,7 +106,7 @@ class ListTablesResponse(proto.Message):
     r"""Response message for TablesService.ListTables.
 
     Attributes:
-        tables (Sequence[google.area120.tables_v1alpha1.types.Table]):
+        tables (MutableSequence[google.area120.tables_v1alpha1.types.Table]):
             The list of tables.
         next_page_token (str):
             A token, which can be sent as ``page_token`` to retrieve the
@@ -116,12 +118,12 @@ class ListTablesResponse(proto.Message):
     def raw_page(self):
         return self
 
-    tables = proto.RepeatedField(
+    tables: MutableSequence["Table"] = proto.RepeatedField(
         proto.MESSAGE,
         number=1,
         message="Table",
     )
-    next_page_token = proto.Field(
+    next_page_token: str = proto.Field(
         proto.STRING,
         number=2,
     )
@@ -136,7 +138,7 @@ class GetWorkspaceRequest(proto.Message):
             retrieve. Format: workspaces/{workspace}
     """
 
-    name = proto.Field(
+    name: str = proto.Field(
         proto.STRING,
         number=1,
     )
@@ -161,11 +163,11 @@ class ListWorkspacesRequest(proto.Message):
             page token.
     """
 
-    page_size = proto.Field(
+    page_size: int = proto.Field(
         proto.INT32,
         number=1,
     )
-    page_token = proto.Field(
+    page_token: str = proto.Field(
         proto.STRING,
         number=2,
     )
@@ -175,7 +177,7 @@ class ListWorkspacesResponse(proto.Message):
     r"""Response message for TablesService.ListWorkspaces.
 
     Attributes:
-        workspaces (Sequence[google.area120.tables_v1alpha1.types.Workspace]):
+        workspaces (MutableSequence[google.area120.tables_v1alpha1.types.Workspace]):
             The list of workspaces.
         next_page_token (str):
             A token, which can be sent as ``page_token`` to retrieve the
@@ -187,12 +189,12 @@ class ListWorkspacesResponse(proto.Message):
     def raw_page(self):
         return self
 
-    workspaces = proto.RepeatedField(
+    workspaces: MutableSequence["Workspace"] = proto.RepeatedField(
         proto.MESSAGE,
         number=1,
         message="Workspace",
     )
-    next_page_token = proto.Field(
+    next_page_token: str = proto.Field(
         proto.STRING,
         number=2,
     )
@@ -210,11 +212,11 @@ class GetRowRequest(proto.Message):
             row. Defaults to user entered name.
     """
 
-    name = proto.Field(
+    name: str = proto.Field(
         proto.STRING,
         number=1,
     )
-    view = proto.Field(
+    view: "View" = proto.Field(
         proto.ENUM,
         number=2,
         enum="View",
@@ -252,24 +254,24 @@ class ListRowsRequest(proto.Message):
             filtering not supported.
     """
 
-    parent = proto.Field(
+    parent: str = proto.Field(
         proto.STRING,
         number=1,
     )
-    page_size = proto.Field(
+    page_size: int = proto.Field(
         proto.INT32,
         number=2,
     )
-    page_token = proto.Field(
+    page_token: str = proto.Field(
         proto.STRING,
         number=3,
     )
-    view = proto.Field(
+    view: "View" = proto.Field(
         proto.ENUM,
         number=4,
         enum="View",
     )
-    filter = proto.Field(
+    filter: str = proto.Field(
         proto.STRING,
         number=5,
     )
@@ -279,7 +281,7 @@ class ListRowsResponse(proto.Message):
     r"""Response message for TablesService.ListRows.
 
     Attributes:
-        rows (Sequence[google.area120.tables_v1alpha1.types.Row]):
+        rows (MutableSequence[google.area120.tables_v1alpha1.types.Row]):
             The rows from the specified table.
         next_page_token (str):
             A token, which can be sent as ``page_token`` to retrieve the
@@ -291,12 +293,12 @@ class ListRowsResponse(proto.Message):
     def raw_page(self):
         return self
 
-    rows = proto.RepeatedField(
+    rows: MutableSequence["Row"] = proto.RepeatedField(
         proto.MESSAGE,
         number=1,
         message="Row",
     )
-    next_page_token = proto.Field(
+    next_page_token: str = proto.Field(
         proto.STRING,
         number=2,
     )
@@ -316,16 +318,16 @@ class CreateRowRequest(proto.Message):
             row. Defaults to user entered name.
     """
 
-    parent = proto.Field(
+    parent: str = proto.Field(
         proto.STRING,
         number=1,
     )
-    row = proto.Field(
+    row: "Row" = proto.Field(
         proto.MESSAGE,
         number=2,
         message="Row",
     )
-    view = proto.Field(
+    view: "View" = proto.Field(
         proto.ENUM,
         number=3,
         enum="View",
@@ -339,18 +341,18 @@ class BatchCreateRowsRequest(proto.Message):
         parent (str):
             Required. The parent table where the rows
             will be created. Format: tables/{table}
-        requests (Sequence[google.area120.tables_v1alpha1.types.CreateRowRequest]):
+        requests (MutableSequence[google.area120.tables_v1alpha1.types.CreateRowRequest]):
             Required. The request message specifying the
             rows to create.
             A maximum of 500 rows can be created in a single
             batch.
     """
 
-    parent = proto.Field(
+    parent: str = proto.Field(
         proto.STRING,
         number=1,
     )
-    requests = proto.RepeatedField(
+    requests: MutableSequence["CreateRowRequest"] = proto.RepeatedField(
         proto.MESSAGE,
         number=2,
         message="CreateRowRequest",
@@ -361,11 +363,11 @@ class BatchCreateRowsResponse(proto.Message):
     r"""Response message for TablesService.BatchCreateRows.
 
     Attributes:
-        rows (Sequence[google.area120.tables_v1alpha1.types.Row]):
+        rows (MutableSequence[google.area120.tables_v1alpha1.types.Row]):
             The created rows.
     """
 
-    rows = proto.RepeatedField(
+    rows: MutableSequence["Row"] = proto.RepeatedField(
         proto.MESSAGE,
         number=1,
         message="Row",
@@ -385,17 +387,17 @@ class UpdateRowRequest(proto.Message):
             row. Defaults to user entered name.
     """
 
-    row = proto.Field(
+    row: "Row" = proto.Field(
         proto.MESSAGE,
         number=1,
         message="Row",
     )
-    update_mask = proto.Field(
+    update_mask: field_mask_pb2.FieldMask = proto.Field(
         proto.MESSAGE,
         number=2,
         message=field_mask_pb2.FieldMask,
     )
-    view = proto.Field(
+    view: "View" = proto.Field(
         proto.ENUM,
         number=3,
         enum="View",
@@ -409,18 +411,18 @@ class BatchUpdateRowsRequest(proto.Message):
         parent (str):
             Required. The parent table shared by all rows
             being updated. Format: tables/{table}
-        requests (Sequence[google.area120.tables_v1alpha1.types.UpdateRowRequest]):
+        requests (MutableSequence[google.area120.tables_v1alpha1.types.UpdateRowRequest]):
             Required. The request messages specifying the
             rows to update.
             A maximum of 500 rows can be modified in a
             single batch.
     """
 
-    parent = proto.Field(
+    parent: str = proto.Field(
         proto.STRING,
         number=1,
     )
-    requests = proto.RepeatedField(
+    requests: MutableSequence["UpdateRowRequest"] = proto.RepeatedField(
         proto.MESSAGE,
         number=2,
         message="UpdateRowRequest",
@@ -431,11 +433,11 @@ class BatchUpdateRowsResponse(proto.Message):
     r"""Response message for TablesService.BatchUpdateRows.
 
     Attributes:
-        rows (Sequence[google.area120.tables_v1alpha1.types.Row]):
+        rows (MutableSequence[google.area120.tables_v1alpha1.types.Row]):
             The updated rows.
     """
 
-    rows = proto.RepeatedField(
+    rows: MutableSequence["Row"] = proto.RepeatedField(
         proto.MESSAGE,
         number=1,
         message="Row",
@@ -451,7 +453,7 @@ class DeleteRowRequest(proto.Message):
             Format: tables/{table}/rows/{row}
     """
 
-    name = proto.Field(
+    name: str = proto.Field(
         proto.STRING,
         number=1,
     )
@@ -464,7 +466,7 @@ class BatchDeleteRowsRequest(proto.Message):
         parent (str):
             Required. The parent table shared by all rows
             being deleted. Format: tables/{table}
-        names (Sequence[str]):
+        names (MutableSequence[str]):
             Required. The names of the rows to delete.
             All rows must belong to the parent table or else
             the entire batch will fail. A maximum of 500
@@ -472,11 +474,11 @@ class BatchDeleteRowsRequest(proto.Message):
             Format: tables/{table}/rows/{row}
     """
 
-    parent = proto.Field(
+    parent: str = proto.Field(
         proto.STRING,
         number=1,
     )
-    names = proto.RepeatedField(
+    names: MutableSequence[str] = proto.RepeatedField(
         proto.STRING,
         number=2,
     )
@@ -491,20 +493,20 @@ class Table(proto.Message):
             ``tables/{table}``.
         display_name (str):
             The human readable title of the table.
-        columns (Sequence[google.area120.tables_v1alpha1.types.ColumnDescription]):
+        columns (MutableSequence[google.area120.tables_v1alpha1.types.ColumnDescription]):
             List of columns in this table.
             Order of columns matches the display order.
     """
 
-    name = proto.Field(
+    name: str = proto.Field(
         proto.STRING,
         number=1,
     )
-    display_name = proto.Field(
+    display_name: str = proto.Field(
         proto.STRING,
         number=2,
     )
-    columns = proto.RepeatedField(
+    columns: MutableSequence["ColumnDescription"] = proto.RepeatedField(
         proto.MESSAGE,
         number=3,
         message="ColumnDescription",
@@ -527,7 +529,7 @@ class ColumnDescription(proto.Message):
             types supported on Tables website.
         id (str):
             Internal id for a column.
-        labels (Sequence[google.area120.tables_v1alpha1.types.LabeledItem]):
+        labels (MutableSequence[google.area120.tables_v1alpha1.types.LabeledItem]):
             Optional. Range of labeled values for the
             column. Some columns like tags and drop-downs
             limit the values to a set of possible values. We
@@ -545,29 +547,29 @@ class ColumnDescription(proto.Message):
             relationship column.
     """
 
-    name = proto.Field(
+    name: str = proto.Field(
         proto.STRING,
         number=1,
     )
-    data_type = proto.Field(
+    data_type: str = proto.Field(
         proto.STRING,
         number=2,
     )
-    id = proto.Field(
+    id: str = proto.Field(
         proto.STRING,
         number=3,
     )
-    labels = proto.RepeatedField(
+    labels: MutableSequence["LabeledItem"] = proto.RepeatedField(
         proto.MESSAGE,
         number=4,
         message="LabeledItem",
     )
-    relationship_details = proto.Field(
+    relationship_details: "RelationshipDetails" = proto.Field(
         proto.MESSAGE,
         number=5,
         message="RelationshipDetails",
     )
-    lookup_details = proto.Field(
+    lookup_details: "LookupDetails" = proto.Field(
         proto.MESSAGE,
         number=6,
         message="LookupDetails",
@@ -584,11 +586,11 @@ class LabeledItem(proto.Message):
             Internal id associated with the item.
     """
 
-    name = proto.Field(
+    name: str = proto.Field(
         proto.STRING,
         number=1,
     )
-    id = proto.Field(
+    id: str = proto.Field(
         proto.STRING,
         number=2,
     )
@@ -603,7 +605,7 @@ class RelationshipDetails(proto.Message):
             linked to.
     """
 
-    linked_table = proto.Field(
+    linked_table: str = proto.Field(
         proto.STRING,
         number=1,
     )
@@ -621,11 +623,11 @@ class LookupDetails(proto.Message):
             The id of the relationship column.
     """
 
-    relationship_column = proto.Field(
+    relationship_column: str = proto.Field(
         proto.STRING,
         number=1,
     )
-    relationship_column_id = proto.Field(
+    relationship_column_id: str = proto.Field(
         proto.STRING,
         number=2,
     )
@@ -639,18 +641,18 @@ class Row(proto.Message):
             The resource name of the row. Row names have the form
             ``tables/{table}/rows/{row}``. The name is ignored when
             creating a row.
-        values (Mapping[str, google.protobuf.struct_pb2.Value]):
+        values (MutableMapping[str, google.protobuf.struct_pb2.Value]):
             The values of the row. This is a map of
             column key to value. Key is user entered
             name(default) or the internal column id based on
             the view in the request.
     """
 
-    name = proto.Field(
+    name: str = proto.Field(
         proto.STRING,
         number=1,
     )
-    values = proto.MapField(
+    values: MutableMapping[str, struct_pb2.Value] = proto.MapField(
         proto.STRING,
         proto.MESSAGE,
         number=2,
@@ -667,19 +669,19 @@ class Workspace(proto.Message):
             form ``workspaces/{workspace}``.
         display_name (str):
             The human readable title of the workspace.
-        tables (Sequence[google.area120.tables_v1alpha1.types.Table]):
+        tables (MutableSequence[google.area120.tables_v1alpha1.types.Table]):
             The list of tables in the workspace.
     """
 
-    name = proto.Field(
+    name: str = proto.Field(
         proto.STRING,
         number=1,
     )
-    display_name = proto.Field(
+    display_name: str = proto.Field(
         proto.STRING,
         number=2,
     )
-    tables = proto.RepeatedField(
+    tables: MutableSequence["Table"] = proto.RepeatedField(
         proto.MESSAGE,
         number=3,
         message="Table",
diff --git a/packages/google-area120-tables/release-please-config.json b/packages/google-area120-tables/release-please-config.json
index bc2ae698ff38..488ec942c7bd 100644
--- a/packages/google-area120-tables/release-please-config.json
+++ b/packages/google-area120-tables/release-please-config.json
@@ -7,7 +7,7 @@
         "google/area120/tables/gapic_version.py",
         {
           "type": "json",
-          "path": "samples/generated_samples/snippet_metadata_tables_v1alpha1.json",
+          "path": "samples/generated_samples/snippet_metadata_google.area120.tables.v1alpha1.json",
           "jsonpath": "$.clientLibrary.version"
         }
       ]
diff --git a/packages/google-area120-tables/samples/generated_samples/snippet_metadata_tables_v1alpha1.json b/packages/google-area120-tables/samples/generated_samples/snippet_metadata_google.area120.tables.v1alpha1.json
similarity index 99%
rename from packages/google-area120-tables/samples/generated_samples/snippet_metadata_tables_v1alpha1.json
rename to packages/google-area120-tables/samples/generated_samples/snippet_metadata_google.area120.tables.v1alpha1.json
index b18baaf60d0b..fdfb568d52d6 100644
--- a/packages/google-area120-tables/samples/generated_samples/snippet_metadata_tables_v1alpha1.json
+++ b/packages/google-area120-tables/samples/generated_samples/snippet_metadata_google.area120.tables.v1alpha1.json
@@ -7,7 +7,8 @@
       }
     ],
     "language": "PYTHON",
-    "name": "google-area120-tables"
+    "name": "google-area120-tables",
+    "version": "0.1.0"
   },
   "snippets": [
     {