text: # -*- coding: utf-8 -*-
  # Copyright 2020 Google LLC
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #     http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  #
  import abc
  from typing import Awaitable, Callable, Dict, Optional, Sequence, Union
  import pkg_resources
  
  import google.auth  # type: ignore
  import google.api_core
  from google.api_core import exceptions as core_exceptions
  from google.api_core import gapic_v1
  from google.api_core import retry as retries
  from google.api_core import operations_v1
  from google.auth import credentials as ga_credentials  # type: ignore
  from google.oauth2 import service_account  # type: ignore
  
  from google.cloud.functions_v1.types import functions
  from google.iam.v1 import iam_policy_pb2  # type: ignore
  from google.iam.v1 import policy_pb2  # type: ignore
  from google.longrunning import operations_pb2  # type: ignore
  
  try:
      DEFAULT_CLIENT_INFO = gapic_v1.client_info.ClientInfo(
          gapic_version=pkg_resources.get_distribution("google-cloud-functions",).version,
      )
  except pkg_resources.DistributionNotFound:
      DEFAULT_CLIENT_INFO = gapic_v1.client_info.ClientInfo()
  
  
  class CloudFunctionsServiceTransport(abc.ABC):
      """Abstract transport class for CloudFunctionsService."""
  
      AUTH_SCOPES = ("https://www.googleapis.com/auth/cloud-platform",)
  
      DEFAULT_HOST: str = "cloudfunctions.googleapis.com"
  
      def __init__(
          self,
          *,
          host: str = DEFAULT_HOST,
          credentials: ga_credentials.Credentials = None,
          credentials_file: Optional[str] = None,
          scopes: Optional[Sequence[str]] = None,
          quota_project_id: Optional[str] = None,
          client_info: gapic_v1.client_info.ClientInfo = DEFAULT_CLIENT_INFO,
          always_use_jwt_access: Optional[bool] = False,
          **kwargs,
      ) -> None:
          """Instantiate the transport.
  
          Args:
              host (Optional[str]):
                   The hostname to connect to.
              credentials (Optional[google.auth.credentials.Credentials]): The
                  authorization credentials to attach to requests. These
                  credentials identify the application to the service; if none
                  are specified, the client will attempt to ascertain the
                  credentials from the environment.
              credentials_file (Optional[str]): A file with credentials that can
                  be loaded with :func:`google.auth.load_credentials_from_file`.
                  This argument is mutually exclusive with credentials.
              scopes (Optional[Sequence[str]]): A list of scopes.
              quota_project_id (Optional[str]): An optional project to use for billing
                  and quota.
              client_info (google.api_core.gapic_v1.client_info.ClientInfo):
                  The client info used to send a user-agent string along with
                  API requests. If ``None``, then default info will be used.
                  Generally, you only need to set this if you're developing
                  your own client library.
              always_use_jwt_access (Optional[bool]): Whether self signed JWT should
                  be used for service account credentials.
          """
          # Save the hostname. Default to port 443 (HTTPS) if none is specified.
          if ":" not in host:
              host += ":443"
          self._host = host
  
          scopes_kwargs = {"scopes": scopes, "default_scopes": self.AUTH_SCOPES}
  
          # Save the scopes.
          self._scopes = scopes
  
          # If no credentials are provided, then determine the appropriate
          # defaults.
          if credentials and credentials_file:
              raise core_exceptions.DuplicateCredentialArgs(
                  "'credentials_file' and 'credentials' are mutually exclusive"
              )
  
          if credentials_file is not None:
              credentials, _ = google.auth.load_credentials_from_file(
                  credentials_file, **scopes_kwargs, quota_project_id=quota_project_id
              )
          elif credentials is None:
              credentials, _ = google.auth.default(
                  **scopes_kwargs, quota_project_id=quota_project_id
              )
  
          # If the credentials are service account credentials, then always try to use self signed JWT.
          if (
              always_use_jwt_access
              and isinstance(credentials, service_account.Credentials)
              and hasattr(service_account.Credentials, "with_always_use_jwt_access")
          ):
              credentials = credentials.with_always_use_jwt_access(True)
  
          # Save the credentials.
          self._credentials = credentials
  
      def _prep_wrapped_messages(self, client_info):
          # Precompute the wrapped methods.
          self._wrapped_methods = {
              self.list_functions: gapic_v1.method.wrap_method(
                  self.list_functions,
                  default_retry=retries.Retry(
                      initial=0.1,
                      maximum=60.0,
                      multiplier=1.3,
                      predicate=retries.if_exception_type(
                          core_exceptions.DeadlineExceeded,
                          core_exceptions.ServiceUnavailable,
                      ),
                      deadline=600.0,
                  ),
                  default_timeout=600.0,
                  client_info=client_info,
              ),
              self.get_function: gapic_v1.method.wrap_method(
                  self.get_function,
                  default_retry=retries.Retry(
                      initial=0.1,
                      maximum=60.0,
                      multiplier=1.3,
                      predicate=retries.if_exception_type(
                          core_exceptions.DeadlineExceeded,
                          core_exceptions.ServiceUnavailable,
                      ),
                      deadline=600.0,
                  ),
                  default_timeout=600.0,
                  client_info=client_info,
              ),
              self.create_function: gapic_v1.method.wrap_method(
                  self.create_function, default_timeout=600.0, client_info=client_info,
              ),
              self.update_function: gapic_v1.method.wrap_method(
                  self.update_function,
                  default_retry=retries.Retry(
                      initial=0.1,
                      maximum=60.0,
                      multiplier=1.3,
                      predicate=retries.if_exception_type(
                          core_exceptions.DeadlineExceeded,
                          core_exceptions.ServiceUnavailable,
                      ),
                      deadline=600.0,
                  ),
                  default_timeout=600.0,
                  client_info=client_info,
              ),
              self.delete_function: gapic_v1.method.wrap_method(
                  self.delete_function,
                  default_retry=retries.Retry(
                      initial=0.1,
                      maximum=60.0,
                      multiplier=1.3,
                      predicate=retries.if_exception_type(
                          core_exceptions.DeadlineExceeded,
                          core_exceptions.ServiceUnavailable,
                      ),
                      deadline=600.0,
                  ),
                  default_timeout=600.0,
                  client_info=client_info,
              ),
              self.call_function: gapic_v1.method.wrap_method(
                  self.call_function, default_timeout=600.0, client_info=client_info,
              ),
              self.generate_upload_url: gapic_v1.method.wrap_method(
                  self.generate_upload_url, default_timeout=None, client_info=client_info,
              ),
              self.generate_download_url: gapic_v1.method.wrap_method(
                  self.generate_download_url,
                  default_timeout=None,
                  client_info=client_info,
              ),
              self.set_iam_policy: gapic_v1.method.wrap_method(
                  self.set_iam_policy, default_timeout=None, client_info=client_info,
              ),
              self.get_iam_policy: gapic_v1.method.wrap_method(
                  self.get_iam_policy, default_timeout=None, client_info=client_info,
              ),
              self.test_iam_permissions: gapic_v1.method.wrap_method(
                  self.test_iam_permissions,
                  default_timeout=None,
                  client_info=client_info,
              ),
          }
  
      def close(self):
          """Closes resources associated with the transport.
  
         .. warning::
              Only call this method if the transport is NOT shared
              with other clients - this may cause errors in other clients!
          """
          raise NotImplementedError()
  
      @property
      def operations_client(self):
          """Return the client designed to process long-running operations."""
          raise NotImplementedError()
  
      @property
      def list_functions(
          self,
      ) -> Callable[
          [functions.ListFunctionsRequest],
          Union[
              functions.ListFunctionsResponse, Awaitable[functions.ListFunctionsResponse]
          ],
      ]:
          raise NotImplementedError()
  
      @property
      def get_function(
          self,
      ) -> Callable[
          [functions.GetFunctionRequest],
          Union[functions.CloudFunction, Awaitable[functions.CloudFunction]],
      ]:
          raise NotImplementedError()
  
      @property
      def create_function(
          self,
      ) -> Callable[
          [functions.CreateFunctionRequest],
          Union[operations_pb2.Operation, Awaitable[operations_pb2.Operation]],
      ]:
          raise NotImplementedError()
  
      @property
      def update_function(
          self,
      ) -> Callable[
          [functions.UpdateFunctionRequest],
          Union[operations_pb2.Operation, Awaitable[operations_pb2.Operation]],
      ]:
          raise NotImplementedError()
  
      @property
      def delete_function(
          self,
      ) -> Callable[
          [functions.DeleteFunctionRequest],
          Union[operations_pb2.Operation, Awaitable[operations_pb2.Operation]],
      ]:
          raise NotImplementedError()
  
      @property
      def call_function(
          self,
      ) -> Callable[
          [functions.CallFunctionRequest],
          Union[
              functions.CallFunctionResponse, Awaitable[functions.CallFunctionResponse]
          ],
      ]:
          raise NotImplementedError()
  
      @property
      def generate_upload_url(
          self,
      ) -> Callable[
          [functions.GenerateUploadUrlRequest],
          Union[
              functions.GenerateUploadUrlResponse,
              Awaitable[functions.GenerateUploadUrlResponse],
          ],
      ]:
          raise NotImplementedError()
  
      @property
      def generate_download_url(
          self,
      ) -> Callable[
          [functions.GenerateDownloadUrlRequest],
          Union[
              functions.GenerateDownloadUrlResponse,
              Awaitable[functions.GenerateDownloadUrlResponse],
          ],
      ]:
          raise NotImplementedError()
  
      @property
      def set_iam_policy(
          self,
      ) -> Callable[
          [iam_policy_pb2.SetIamPolicyRequest],
          Union[policy_pb2.Policy, Awaitable[policy_pb2.Policy]],
      ]:
          raise NotImplementedError()
  
      @property
      def get_iam_policy(
          self,
      ) -> Callable[
          [iam_policy_pb2.GetIamPolicyRequest],
          Union[policy_pb2.Policy, Awaitable[policy_pb2.Policy]],
      ]:
          raise NotImplementedError()
  
      @property
      def test_iam_permissions(
          self,
      ) -> Callable[
          [iam_policy_pb2.TestIamPermissionsRequest],
          Union[
              iam_policy_pb2.TestIamPermissionsResponse,
              Awaitable[iam_policy_pb2.TestIamPermissionsResponse],
          ],
      ]:
          raise NotImplementedError()
  
  
  __all__ = ("CloudFunctionsServiceTransport",)
  