text: # -*- coding: utf-8 -*-
  #
  # Copyright 2019 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
  #
  # 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.
  
  """Accesses the google.ads.googleads.v4.services DomainCategoryService API."""
  
  import pkg_resources
  import warnings
  
  from google.oauth2 import service_account
  import google.api_core.gapic_v1.client_info
  import google.api_core.gapic_v1.config
  import google.api_core.gapic_v1.method
  import google.api_core.gapic_v1.routing_header
  import google.api_core.grpc_helpers
  import google.api_core.path_template
  
  from google.ads.google_ads.v4.services import domain_category_service_client_config
  from google.ads.google_ads.v4.services.transports import domain_category_service_grpc_transport
  from google.ads.google_ads.v4.proto.services import domain_category_service_pb2
  
  
  
  _GAPIC_LIBRARY_VERSION = pkg_resources.get_distribution(
      'google-ads',
  ).version
  
  
  class DomainCategoryServiceClient(object):
      """Service to fetch domain categories."""
  
      SERVICE_ADDRESS = 'googleads.googleapis.com:443'
      """The default address of the service."""
  
      # The name of the interface for this client. This is the key used to
      # find the method configuration in the client_config dictionary.
      _INTERFACE_NAME = 'google.ads.googleads.v4.services.DomainCategoryService'
  
  
      @classmethod
      def from_service_account_file(cls, filename, *args, **kwargs):
          """Creates an instance of this client using the provided credentials
          file.
  
          Args:
              filename (str): The path to the service account private key json
                  file.
              args: Additional arguments to pass to the constructor.
              kwargs: Additional arguments to pass to the constructor.
  
          Returns:
              DomainCategoryServiceClient: The constructed client.
          """
          credentials = service_account.Credentials.from_service_account_file(
              filename)
          kwargs['credentials'] = credentials
          return cls(*args, **kwargs)
  
      from_service_account_json = from_service_account_file
  
  
      @classmethod
      def domain_category_path(cls, customer, domain_category):
          """Return a fully-qualified domain_category string."""
          return google.api_core.path_template.expand(
              'customers/{customer}/domainCategories/{domain_category}',
              customer=customer,
              domain_category=domain_category,
          )
  
      def __init__(self, transport=None, channel=None, credentials=None,
              client_config=None, client_info=None):
          """Constructor.
  
          Args:
              transport (Union[~.DomainCategoryServiceGrpcTransport,
                      Callable[[~.Credentials, type], ~.DomainCategoryServiceGrpcTransport]): A transport
                  instance, responsible for actually making the API calls.
                  The default transport uses the gRPC protocol.
                  This argument may also be a callable which returns a
                  transport instance. Callables will be sent the credentials
                  as the first argument and the default transport class as
                  the second argument.
              channel (grpc.Channel): DEPRECATED. A ``Channel`` instance
                  through which to make calls. This argument is mutually exclusive
                  with ``credentials``; providing both will raise an exception.
              credentials (google.auth.credentials.Credentials): The
                  authorization credentials to attach to requests. These
                  credentials identify this application to the service. If none
                  are specified, the client will attempt to ascertain the
                  credentials from the environment.
                  This argument is mutually exclusive with providing a
                  transport instance to ``transport``; doing so will raise
                  an exception.
              client_config (dict): DEPRECATED. A dictionary of call options for
                  each method. If not specified, the default configuration is used.
              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.
          """
          # Raise deprecation warnings for things we want to go away.
          if client_config is not None:
              warnings.warn('The `client_config` argument is deprecated.',
                            PendingDeprecationWarning, stacklevel=2)
          else:
              client_config = domain_category_service_client_config.config
  
          if channel:
              warnings.warn('The `channel` argument is deprecated; use '
                            '`transport` instead.',
                            PendingDeprecationWarning, stacklevel=2)
  
          # Instantiate the transport.
          # The transport is responsible for handling serialization and
          # deserialization and actually sending data to the service.
          if transport:
              if callable(transport):
                  self.transport = transport(
                      credentials=credentials,
                      default_class=domain_category_service_grpc_transport.DomainCategoryServiceGrpcTransport,
                  )
              else:
                  if credentials:
                      raise ValueError(
                          'Received both a transport instance and '
                          'credentials; these are mutually exclusive.'
                      )
                  self.transport = transport
          else:
              self.transport = domain_category_service_grpc_transport.DomainCategoryServiceGrpcTransport(
                  address=self.SERVICE_ADDRESS,
                  channel=channel,
                  credentials=credentials,
              )
  
          if client_info is None:
              client_info = google.api_core.gapic_v1.client_info.ClientInfo(
                  gapic_version=_GAPIC_LIBRARY_VERSION,
              )
          else:
              client_info.gapic_version = _GAPIC_LIBRARY_VERSION
          self._client_info = client_info
  
          # Parse out the default settings for retry and timeout for each RPC
          # from the client configuration.
          # (Ordinarily, these are the defaults specified in the `*_config.py`
          # file next to this one.)
          self._method_configs = google.api_core.gapic_v1.config.parse_method_configs(
              client_config['interfaces'][self._INTERFACE_NAME],
          )
  
          # Save a dictionary of cached API call functions.
          # These are the actual callables which invoke the proper
          # transport methods, wrapped with `wrap_method` to add retry,
          # timeout, and the like.
          self._inner_api_calls = {}
  
      # Service calls
      def get_domain_category(
              self,
              resource_name,
              retry=google.api_core.gapic_v1.method.DEFAULT,
              timeout=google.api_core.gapic_v1.method.DEFAULT,
              metadata=None):
          """
          Returns the requested domain category.
  
          Args:
              resource_name (str): Required. Resource name of the domain category to fetch.
              retry (Optional[google.api_core.retry.Retry]):  A retry object used
                  to retry requests. If ``None`` is specified, requests will not
                  be retried.
              timeout (Optional[float]): The amount of time, in seconds, to wait
                  for the request to complete. Note that if ``retry`` is
                  specified, the timeout applies to each individual attempt.
              metadata (Optional[Sequence[Tuple[str, str]]]): Additional metadata
                  that is provided to the method.
  
          Returns:
              A :class:`~google.ads.googleads_v4.types.DomainCategory` instance.
  
          Raises:
              google.api_core.exceptions.GoogleAPICallError: If the request
                      failed for any reason.
              google.api_core.exceptions.RetryError: If the request failed due
                      to a retryable error and retry attempts failed.
              ValueError: If the parameters are invalid.
          """
          # Wrap the transport method to add retry and timeout logic.
          if 'get_domain_category' not in self._inner_api_calls:
              self._inner_api_calls['get_domain_category'] = google.api_core.gapic_v1.method.wrap_method(
                  self.transport.get_domain_category,
                  default_retry=self._method_configs['GetDomainCategory'].retry,
                  default_timeout=self._method_configs['GetDomainCategory'].timeout,
                  client_info=self._client_info,
              )
  
          request = domain_category_service_pb2.GetDomainCategoryRequest(
              resource_name=resource_name,
          )
          if metadata is None:
              metadata = []
          metadata = list(metadata)
          try:
              routing_header = [('resource_name', resource_name)]
          except AttributeError:
              pass
          else:
              routing_metadata = google.api_core.gapic_v1.routing_header.to_grpc_metadata(routing_header)
              metadata.append(routing_metadata)
  
          return self._inner_api_calls['get_domain_category'](request, retry=retry, timeout=timeout, metadata=metadata)
  