diff --git a/.github/release-please.yml b/.github/release-please.yml
index 6def37a..e9a4f00 100644
--- a/.github/release-please.yml
+++ b/.github/release-please.yml
@@ -1,5 +1,6 @@
 releaseType: python
 handleGHRelease: true
+manifest: true
 # NOTE: this section is generated by synthtool.languages.python
 # See https://github.com/googleapis/synthtool/blob/master/synthtool/languages/python.py
 branches:
diff --git a/.release-please-manifest.json b/.release-please-manifest.json
new file mode 100644
index 0000000..866e93f
--- /dev/null
+++ b/.release-please-manifest.json
@@ -0,0 +1,3 @@
+{
+  ".": "1.4.3"
+}
diff --git a/docs/shell_v1/types.rst b/docs/shell_v1/types.rst
index 5324b54..03ad0f5 100644
--- a/docs/shell_v1/types.rst
+++ b/docs/shell_v1/types.rst
@@ -3,5 +3,4 @@ Types for Google Cloud Shell v1 API
 
 .. automodule:: google.cloud.shell_v1.types
     :members:
-    :undoc-members:
     :show-inheritance:
diff --git a/google/cloud/shell/__init__.py b/google/cloud/shell/__init__.py
index bf56bf2..91bb4b5 100644
--- a/google/cloud/shell/__init__.py
+++ b/google/cloud/shell/__init__.py
@@ -13,6 +13,10 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
+from google.cloud.shell import gapic_version as package_version
+
+__version__ = package_version.__version__
+
 
 from google.cloud.shell_v1.services.cloud_shell_service.async_client import (
     CloudShellServiceAsyncClient,
diff --git a/google/cloud/shell/gapic_version.py b/google/cloud/shell/gapic_version.py
new file mode 100644
index 0000000..178df4b
--- /dev/null
+++ b/google/cloud/shell/gapic_version.py
@@ -0,0 +1,16 @@
+# -*- coding: utf-8 -*-
+# Copyright 2022 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__ = "1.4.3"  # {x-release-please-version}
diff --git a/google/cloud/shell_v1/__init__.py b/google/cloud/shell_v1/__init__.py
index 45ae75b..e7e6344 100644
--- a/google/cloud/shell_v1/__init__.py
+++ b/google/cloud/shell_v1/__init__.py
@@ -13,6 +13,10 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
+from google.cloud.shell import gapic_version as package_version
+
+__version__ = package_version.__version__
+
 
 from .services.cloud_shell_service import (
     CloudShellServiceAsyncClient,
diff --git a/google/cloud/shell_v1/services/cloud_shell_service/async_client.py b/google/cloud/shell_v1/services/cloud_shell_service/async_client.py
index a7bd34d..4e75dfa 100644
--- a/google/cloud/shell_v1/services/cloud_shell_service/async_client.py
+++ b/google/cloud/shell_v1/services/cloud_shell_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
@@ -171,9 +181,9 @@ def transport(self) -> CloudShellServiceTransport:
     def __init__(
         self,
         *,
-        credentials: ga_credentials.Credentials = None,
+        credentials: Optional[ga_credentials.Credentials] = None,
         transport: Union[str, CloudShellServiceTransport] = "grpc_asyncio",
-        client_options: ClientOptions = None,
+        client_options: Optional[ClientOptions] = None,
         client_info: gapic_v1.client_info.ClientInfo = DEFAULT_CLIENT_INFO,
     ) -> None:
         """Instantiates the cloud shell service client.
@@ -217,11 +227,11 @@ def __init__(
 
     async def get_environment(
         self,
-        request: Union[cloudshell.GetEnvironmentRequest, dict] = None,
+        request: Optional[Union[cloudshell.GetEnvironmentRequest, 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]] = (),
     ) -> cloudshell.Environment:
         r"""Gets an environment. Returns NOT_FOUND if the environment does
@@ -254,7 +264,7 @@ async def sample_get_environment():
                 print(response)
 
         Args:
-            request (Union[google.cloud.shell_v1.types.GetEnvironmentRequest, dict]):
+            request (Optional[Union[google.cloud.shell_v1.types.GetEnvironmentRequest, dict]]):
                 The request object. Request message for
                 [GetEnvironment][google.cloud.shell.v1.CloudShellService.GetEnvironment].
             name (:class:`str`):
@@ -337,10 +347,10 @@ async def sample_get_environment():
 
     async def start_environment(
         self,
-        request: Union[cloudshell.StartEnvironmentRequest, dict] = None,
+        request: Optional[Union[cloudshell.StartEnvironmentRequest, dict]] = None,
         *,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: float = None,
+        timeout: Optional[float] = None,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> operation_async.AsyncOperation:
         r"""Starts an existing environment, allowing clients to
@@ -382,7 +392,7 @@ async def sample_start_environment():
                 print(response)
 
         Args:
-            request (Union[google.cloud.shell_v1.types.StartEnvironmentRequest, dict]):
+            request (Optional[Union[google.cloud.shell_v1.types.StartEnvironmentRequest, dict]]):
                 The request object. Request message for
                 [StartEnvironment][google.cloud.shell.v1.CloudShellService.StartEnvironment].
             retry (google.api_core.retry.Retry): Designation of what errors, if any,
@@ -438,10 +448,10 @@ async def sample_start_environment():
 
     async def authorize_environment(
         self,
-        request: Union[cloudshell.AuthorizeEnvironmentRequest, dict] = None,
+        request: Optional[Union[cloudshell.AuthorizeEnvironmentRequest, dict]] = None,
         *,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: float = None,
+        timeout: Optional[float] = None,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> operation_async.AsyncOperation:
         r"""Sends OAuth credentials to a running environment on
@@ -480,7 +490,7 @@ async def sample_authorize_environment():
                 print(response)
 
         Args:
-            request (Union[google.cloud.shell_v1.types.AuthorizeEnvironmentRequest, dict]):
+            request (Optional[Union[google.cloud.shell_v1.types.AuthorizeEnvironmentRequest, dict]]):
                 The request object. Request message for
                 [AuthorizeEnvironment][google.cloud.shell.v1.CloudShellService.AuthorizeEnvironment].
             retry (google.api_core.retry.Retry): Designation of what errors, if any,
@@ -535,10 +545,10 @@ async def sample_authorize_environment():
 
     async def add_public_key(
         self,
-        request: Union[cloudshell.AddPublicKeyRequest, dict] = None,
+        request: Optional[Union[cloudshell.AddPublicKeyRequest, dict]] = None,
         *,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: float = None,
+        timeout: Optional[float] = None,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> operation_async.AsyncOperation:
         r"""Adds a public SSH key to an environment, allowing clients with
@@ -576,7 +586,7 @@ async def sample_add_public_key():
                 print(response)
 
         Args:
-            request (Union[google.cloud.shell_v1.types.AddPublicKeyRequest, dict]):
+            request (Optional[Union[google.cloud.shell_v1.types.AddPublicKeyRequest, dict]]):
                 The request object. Request message for
                 [AddPublicKey][google.cloud.shell.v1.CloudShellService.AddPublicKey].
             retry (google.api_core.retry.Retry): Designation of what errors, if any,
@@ -633,10 +643,10 @@ async def sample_add_public_key():
 
     async def remove_public_key(
         self,
-        request: Union[cloudshell.RemovePublicKeyRequest, dict] = None,
+        request: Optional[Union[cloudshell.RemovePublicKeyRequest, dict]] = None,
         *,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: float = None,
+        timeout: Optional[float] = None,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> operation_async.AsyncOperation:
         r"""Removes a public SSH key from an environment. Clients will no
@@ -674,7 +684,7 @@ async def sample_remove_public_key():
                 print(response)
 
         Args:
-            request (Union[google.cloud.shell_v1.types.RemovePublicKeyRequest, dict]):
+            request (Optional[Union[google.cloud.shell_v1.types.RemovePublicKeyRequest, dict]]):
                 The request object. Request message for
                 [RemovePublicKey][google.cloud.shell.v1.CloudShellService.RemovePublicKey].
             retry (google.api_core.retry.Retry): Designation of what errors, if any,
diff --git a/google/cloud/shell_v1/services/cloud_shell_service/client.py b/google/cloud/shell_v1/services/cloud_shell_service/client.py
index 86032c1..134029e 100644
--- a/google/cloud/shell_v1/services/cloud_shell_service/client.py
+++ b/google/cloud/shell_v1/services/cloud_shell_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
+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 CloudShellServiceClientMeta(type):
 
     def get_transport_class(
         cls,
-        label: str = None,
+        label: Optional[str] = None,
     ) -> Type[CloudShellServiceTransport]:
         """Returns an appropriate transport class.
 
@@ -338,8 +349,8 @@ def __init__(
         self,
         *,
         credentials: Optional[ga_credentials.Credentials] = None,
-        transport: Union[str, CloudShellServiceTransport, None] = None,
-        client_options: Optional[client_options_lib.ClientOptions] = None,
+        transport: Optional[Union[str, CloudShellServiceTransport]] = None,
+        client_options: Optional[Union[client_options_lib.ClientOptions, dict]] = None,
         client_info: gapic_v1.client_info.ClientInfo = DEFAULT_CLIENT_INFO,
     ) -> None:
         """Instantiates the cloud shell service client.
@@ -353,7 +364,7 @@ def __init__(
             transport (Union[str, CloudShellServiceTransport]): The
                 transport to use. If set to None, a transport is chosen
                 automatically.
-            client_options (google.api_core.client_options.ClientOptions): Custom options for the
+            client_options (Optional[Union[google.api_core.client_options.ClientOptions, dict]]): Custom options for the
                 client. It won't take effect if a ``transport`` instance is provided.
                 (1) The ``api_endpoint`` property can be used to override the
                 default endpoint provided by the client. GOOGLE_API_USE_MTLS_ENDPOINT
@@ -383,6 +394,7 @@ def __init__(
             client_options = client_options_lib.from_dict(client_options)
         if client_options is None:
             client_options = client_options_lib.ClientOptions()
+        client_options = cast(client_options_lib.ClientOptions, client_options)
 
         api_endpoint, client_cert_source_func = self.get_mtls_endpoint_and_cert_source(
             client_options
@@ -435,11 +447,11 @@ def __init__(
 
     def get_environment(
         self,
-        request: Union[cloudshell.GetEnvironmentRequest, dict] = None,
+        request: Optional[Union[cloudshell.GetEnvironmentRequest, 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]] = (),
     ) -> cloudshell.Environment:
         r"""Gets an environment. Returns NOT_FOUND if the environment does
@@ -545,10 +557,10 @@ def sample_get_environment():
 
     def start_environment(
         self,
-        request: Union[cloudshell.StartEnvironmentRequest, dict] = None,
+        request: Optional[Union[cloudshell.StartEnvironmentRequest, dict]] = None,
         *,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: float = None,
+        timeout: Optional[float] = None,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> operation.Operation:
         r"""Starts an existing environment, allowing clients to
@@ -647,10 +659,10 @@ def sample_start_environment():
 
     def authorize_environment(
         self,
-        request: Union[cloudshell.AuthorizeEnvironmentRequest, dict] = None,
+        request: Optional[Union[cloudshell.AuthorizeEnvironmentRequest, dict]] = None,
         *,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: float = None,
+        timeout: Optional[float] = None,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> operation.Operation:
         r"""Sends OAuth credentials to a running environment on
@@ -745,10 +757,10 @@ def sample_authorize_environment():
 
     def add_public_key(
         self,
-        request: Union[cloudshell.AddPublicKeyRequest, dict] = None,
+        request: Optional[Union[cloudshell.AddPublicKeyRequest, dict]] = None,
         *,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: float = None,
+        timeout: Optional[float] = None,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> operation.Operation:
         r"""Adds a public SSH key to an environment, allowing clients with
@@ -844,10 +856,10 @@ def sample_add_public_key():
 
     def remove_public_key(
         self,
-        request: Union[cloudshell.RemovePublicKeyRequest, dict] = None,
+        request: Optional[Union[cloudshell.RemovePublicKeyRequest, dict]] = None,
         *,
         retry: OptionalRetry = gapic_v1.method.DEFAULT,
-        timeout: float = None,
+        timeout: Optional[float] = None,
         metadata: Sequence[Tuple[str, str]] = (),
     ) -> operation.Operation:
         r"""Removes a public SSH key from an environment. Clients will no
diff --git a/google/cloud/shell_v1/services/cloud_shell_service/transports/base.py b/google/cloud/shell_v1/services/cloud_shell_service/transports/base.py
index 1a6e8c0..e544512 100644
--- a/google/cloud/shell_v1/services/cloud_shell_service/transports/base.py
+++ b/google/cloud/shell_v1/services/cloud_shell_service/transports/base.py
@@ -49,7 +49,7 @@ 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/google/cloud/shell_v1/services/cloud_shell_service/transports/grpc.py b/google/cloud/shell_v1/services/cloud_shell_service/transports/grpc.py
index 2b6b68e..9aa0b75 100644
--- a/google/cloud/shell_v1/services/cloud_shell_service/transports/grpc.py
+++ b/google/cloud/shell_v1/services/cloud_shell_service/transports/grpc.py
@@ -54,14 +54,14 @@ def __init__(
         self,
         *,
         host: str = "cloudshell.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,
@@ -189,8 +189,8 @@ def __init__(
     def create_channel(
         cls,
         host: str = "cloudshell.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/google/cloud/shell_v1/services/cloud_shell_service/transports/grpc_asyncio.py b/google/cloud/shell_v1/services/cloud_shell_service/transports/grpc_asyncio.py
index 9ad45c6..5635d33 100644
--- a/google/cloud/shell_v1/services/cloud_shell_service/transports/grpc_asyncio.py
+++ b/google/cloud/shell_v1/services/cloud_shell_service/transports/grpc_asyncio.py
@@ -56,7 +56,7 @@ class CloudShellServiceGrpcAsyncIOTransport(CloudShellServiceTransport):
     def create_channel(
         cls,
         host: str = "cloudshell.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,
@@ -99,15 +99,15 @@ def __init__(
         self,
         *,
         host: str = "cloudshell.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/google/cloud/shell_v1/types/cloudshell.py b/google/cloud/shell_v1/types/cloudshell.py
index e2bfa0a..f2f2a26 100644
--- a/google/cloud/shell_v1/types/cloudshell.py
+++ b/google/cloud/shell_v1/types/cloudshell.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 timestamp_pb2  # type: ignore
 import proto  # type: ignore
 
@@ -81,7 +83,7 @@ class Environment(proto.Message):
             Output only. Port to which clients can
             connect to initiate SSH sessions with the
             environment.
-        public_keys (Sequence[str]):
+        public_keys (MutableSequence[str]):
             Output only. Public keys associated with the
             environment. Clients can connect to this
             environment via SSH only if they possess a
@@ -99,40 +101,40 @@ class State(proto.Enum):
         RUNNING = 3
         DELETING = 4
 
-    name = proto.Field(
+    name: str = proto.Field(
         proto.STRING,
         number=1,
     )
-    id = proto.Field(
+    id: str = proto.Field(
         proto.STRING,
         number=2,
     )
-    docker_image = proto.Field(
+    docker_image: str = proto.Field(
         proto.STRING,
         number=3,
     )
-    state = proto.Field(
+    state: State = proto.Field(
         proto.ENUM,
         number=4,
         enum=State,
     )
-    web_host = proto.Field(
+    web_host: str = proto.Field(
         proto.STRING,
         number=12,
     )
-    ssh_username = proto.Field(
+    ssh_username: str = proto.Field(
         proto.STRING,
         number=5,
     )
-    ssh_host = proto.Field(
+    ssh_host: str = proto.Field(
         proto.STRING,
         number=6,
     )
-    ssh_port = proto.Field(
+    ssh_port: int = proto.Field(
         proto.INT32,
         number=7,
     )
-    public_keys = proto.RepeatedField(
+    public_keys: MutableSequence[str] = proto.RepeatedField(
         proto.STRING,
         number=8,
     )
@@ -149,7 +151,7 @@ class GetEnvironmentRequest(proto.Message):
             ``users/someone@example.com/environments/default``.
     """
 
-    name = proto.Field(
+    name: str = proto.Field(
         proto.STRING,
         number=1,
     )
@@ -186,20 +188,20 @@ class StartEnvironmentRequest(proto.Message):
             in Cloud Shell without having to log in. This
             code can be updated later by calling
             AuthorizeEnvironment.
-        public_keys (Sequence[str]):
+        public_keys (MutableSequence[str]):
             Public keys that should be added to the
             environment before it is started.
     """
 
-    name = proto.Field(
+    name: str = proto.Field(
         proto.STRING,
         number=1,
     )
-    access_token = proto.Field(
+    access_token: str = proto.Field(
         proto.STRING,
         number=2,
     )
-    public_keys = proto.RepeatedField(
+    public_keys: MutableSequence[str] = proto.RepeatedField(
         proto.STRING,
         number=3,
     )
@@ -226,19 +228,19 @@ class AuthorizeEnvironmentRequest(proto.Message):
             received the request.
     """
 
-    name = proto.Field(
+    name: str = proto.Field(
         proto.STRING,
         number=1,
     )
-    access_token = proto.Field(
+    access_token: str = proto.Field(
         proto.STRING,
         number=2,
     )
-    id_token = proto.Field(
+    id_token: str = proto.Field(
         proto.STRING,
         number=4,
     )
-    expire_time = proto.Field(
+    expire_time: timestamp_pb2.Timestamp = proto.Field(
         proto.MESSAGE,
         number=3,
         message=timestamp_pb2.Timestamp,
@@ -282,7 +284,7 @@ class State(proto.Enum):
         AWAITING_COMPUTE_RESOURCES = 4
         FINISHED = 3
 
-    state = proto.Field(
+    state: State = proto.Field(
         proto.ENUM,
         number=1,
         enum=State,
@@ -299,7 +301,7 @@ class StartEnvironmentResponse(proto.Message):
             Environment that was started.
     """
 
-    environment = proto.Field(
+    environment: "Environment" = proto.Field(
         proto.MESSAGE,
         number=1,
         message="Environment",
@@ -324,11 +326,11 @@ class AddPublicKeyRequest(proto.Message):
             encoded with Base64.
     """
 
-    environment = proto.Field(
+    environment: str = proto.Field(
         proto.STRING,
         number=1,
     )
-    key = proto.Field(
+    key: str = proto.Field(
         proto.STRING,
         number=2,
     )
@@ -343,7 +345,7 @@ class AddPublicKeyResponse(proto.Message):
             Key that was added to the environment.
     """
 
-    key = proto.Field(
+    key: str = proto.Field(
         proto.STRING,
         number=1,
     )
@@ -369,11 +371,11 @@ class RemovePublicKeyRequest(proto.Message):
             environment.
     """
 
-    environment = proto.Field(
+    environment: str = proto.Field(
         proto.STRING,
         number=1,
     )
-    key = proto.Field(
+    key: str = proto.Field(
         proto.STRING,
         number=2,
     )
@@ -410,8 +412,9 @@ class CloudShellErrorCode(proto.Enum):
         CLOUD_SHELL_DISABLED = 2
         TOS_VIOLATION = 4
         QUOTA_EXCEEDED = 5
+        ENVIRONMENT_UNAVAILABLE = 6
 
-    code = proto.Field(
+    code: CloudShellErrorCode = proto.Field(
         proto.ENUM,
         number=1,
         enum=CloudShellErrorCode,
diff --git a/owlbot.py b/owlbot.py
new file mode 100644
index 0000000..ce738f0
--- /dev/null
+++ b/owlbot.py
@@ -0,0 +1,56 @@
+# Copyright 2022 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 json
+from pathlib import Path
+import shutil
+
+import synthtool as s
+import synthtool.gcp as gcp
+from synthtool.languages import python
+
+# ----------------------------------------------------------------------------
+# Copy the generated client from the owl-bot staging directory
+# ----------------------------------------------------------------------------
+
+clean_up_generated_samples = True
+
+# Load the default version defined in .repo-metadata.json.
+default_version = json.load(open(".repo-metadata.json", "rt")).get(
+    "default_version"
+)
+
+for library in s.get_staging_dirs(default_version):
+    if clean_up_generated_samples:
+        shutil.rmtree("samples/generated_samples", ignore_errors=True)
+        clean_up_generated_samples = False
+    s.move([library], excludes=["**/gapic_version.py"])
+s.remove_staging_dirs()
+
+# ----------------------------------------------------------------------------
+# Add templated files
+# ----------------------------------------------------------------------------
+
+templated_files = gcp.CommonTemplates().py_library(
+    cov_level=100,
+    microgenerator=True,
+    versions=gcp.common.detect_versions(path="./google", default_first=True),
+)
+s.move(templated_files, excludes=[".coveragerc", ".github/release-please.yml"])
+
+python.py_samples(skip_readmes=True)
+
+# run format session for all directories which have a noxfile
+for noxfile in Path(".").glob("**/noxfile.py"):
+    s.shell.run(["nox", "-s", "format"], cwd=noxfile.parent, hide_output=False)
diff --git a/release-please-config.json b/release-please-config.json
new file mode 100644
index 0000000..c9c4b12
--- /dev/null
+++ b/release-please-config.json
@@ -0,0 +1,23 @@
+{
+  "$schema": "https://raw.githubusercontent.com/googleapis/release-please/main/schemas/config.json",
+  "packages": {
+    ".": {
+      "release-type": "python",
+      "extra-files": [
+        "google/cloud/shell/gapic_version.py",
+        {
+          "type": "json",
+          "path": "samples/generated_samples/snippet_metadata_google.cloud.shell.v1.json",
+          "jsonpath": "$.clientLibrary.version"
+        }
+      ]
+    }
+  },
+  "release-type": "python",
+  "plugins": [
+    {
+      "type": "sentence-case"
+    }
+  ],
+  "initial-version": "0.1.0"
+}
diff --git a/samples/generated_samples/snippet_metadata_shell_v1.json b/samples/generated_samples/snippet_metadata_google.cloud.shell.v1.json
similarity index 99%
rename from samples/generated_samples/snippet_metadata_shell_v1.json
rename to samples/generated_samples/snippet_metadata_google.cloud.shell.v1.json
index 7787762..3389a15 100644
--- a/samples/generated_samples/snippet_metadata_shell_v1.json
+++ b/samples/generated_samples/snippet_metadata_google.cloud.shell.v1.json
@@ -7,7 +7,8 @@
       }
     ],
     "language": "PYTHON",
-    "name": "google-cloud-shell"
+    "name": "google-cloud-shell",
+    "version": "0.1.0"
   },
   "snippets": [
     {
diff --git a/setup.py b/setup.py
index 687a0ae..7d52ff9 100644
--- a/setup.py
+++ b/setup.py
@@ -1,34 +1,46 @@
 # -*- coding: utf-8 -*-
-#
-# Copyright 2020 Google LLC
+# Copyright 2022 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
 #
-#     https://www.apache.org/licenses/LICENSE-2.0
+#     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 io
 import os
 
-import setuptools
+import setuptools  # type: ignore
+
+package_root = os.path.abspath(os.path.dirname(__file__))
 
 name = "google-cloud-shell"
-description = "Cloud Shell API client library"
-version = "1.4.3"
-release_status = "Development Status :: 5 - Production/Stable"
-url = "https://github.com/googleapis/python-shell"
+
+
+description = "Google Cloud Shell API client library"
+
+version = {}
+with open(os.path.join(package_root, "google/cloud/shell/gapic_version.py")) as fp:
+    exec(fp.read(), version)
+version = version["__version__"]
+
+if version[0] == "0":
+    release_status = "Development Status :: 4 - Beta"
+else:
+    release_status = "Development Status :: 5 - Production/Stable"
+
 dependencies = [
-    "google-api-core[grpc] >= 1.32.0, <3.0.0dev,!=2.0.*,!=2.1.*,!=2.2.*,!=2.3.*,!=2.4.*,!=2.5.*,!=2.6.*,!=2.7.*",
+    "google-api-core[grpc] >= 1.33.2, <3.0.0dev,!=2.0.*,!=2.1.*,!=2.2.*,!=2.3.*,!=2.4.*,!=2.5.*,!=2.6.*,!=2.7.*",
     "proto-plus >= 1.22.0, <2.0.0dev",
     "protobuf>=3.19.5,<5.0.0dev,!=3.20.0,!=3.20.1,!=4.21.0,!=4.21.1,!=4.21.2,!=4.21.3,!=4.21.4,!=4.21.5",
 ]
+url = "https://github.com/googleapis/python-shell"
 
 package_root = os.path.abspath(os.path.dirname(__file__))
 
@@ -46,7 +58,6 @@
 if "google.cloud" in packages:
     namespaces.append("google.cloud")
 
-
 setuptools.setup(
     name=name,
     version=version,
@@ -54,8 +65,8 @@
     long_description=readme,
     author="Google LLC",
     author_email="googleapis-packages@google.com",
-    url=url,
     license="Apache 2.0",
+    url=url,
     classifiers=[
         release_status,
         "Intended Audience :: Developers",
diff --git a/testing/constraints-3.10.txt b/testing/constraints-3.10.txt
index e69de29..ed7f9ae 100644
--- a/testing/constraints-3.10.txt
+++ b/testing/constraints-3.10.txt
@@ -0,0 +1,6 @@
+# -*- coding: utf-8 -*-
+# This constraints file is required for unit tests.
+# List all library dependencies and extras in this file.
+google-api-core
+proto-plus
+protobuf
diff --git a/testing/constraints-3.11.txt b/testing/constraints-3.11.txt
index e69de29..ed7f9ae 100644
--- a/testing/constraints-3.11.txt
+++ b/testing/constraints-3.11.txt
@@ -0,0 +1,6 @@
+# -*- coding: utf-8 -*-
+# This constraints file is required for unit tests.
+# List all library dependencies and extras in this file.
+google-api-core
+proto-plus
+protobuf
diff --git a/testing/constraints-3.7.txt b/testing/constraints-3.7.txt
index 5dcaa6f..6f3158c 100644
--- a/testing/constraints-3.7.txt
+++ b/testing/constraints-3.7.txt
@@ -1,10 +1,9 @@
 # This constraints file is used to check that lower bounds
 # are correct in setup.py
-# List *all* library dependencies and extras in this file.
+# List all library dependencies and extras in this file.
 # Pin the version to the lower bound.
-#
-# e.g., if setup.py has "foo >= 1.14.0, < 2.0.0dev",
-# Then this file should have foo==1.14.0
-google-api-core==1.32.0
+# e.g., if setup.py has "google-cloud-foo >= 1.14.0, < 2.0.0dev",
+# Then this file should have google-cloud-foo==1.14.0
+google-api-core==1.33.2
 proto-plus==1.22.0
 protobuf==3.19.5
diff --git a/testing/constraints-3.8.txt b/testing/constraints-3.8.txt
index e69de29..ed7f9ae 100644
--- a/testing/constraints-3.8.txt
+++ b/testing/constraints-3.8.txt
@@ -0,0 +1,6 @@
+# -*- coding: utf-8 -*-
+# This constraints file is required for unit tests.
+# List all library dependencies and extras in this file.
+google-api-core
+proto-plus
+protobuf
diff --git a/testing/constraints-3.9.txt b/testing/constraints-3.9.txt
index e69de29..ed7f9ae 100644
--- a/testing/constraints-3.9.txt
+++ b/testing/constraints-3.9.txt
@@ -0,0 +1,6 @@
+# -*- coding: utf-8 -*-
+# This constraints file is required for unit tests.
+# List all library dependencies and extras in this file.
+google-api-core
+proto-plus
+protobuf