docs: def client(self, service_name, version, component, **kw):
          """Safely initialize a repository class to a property.
  
          Args:
              repository_class (class): The class to initialize.
              version (str): The gcp service version for the repository.
  
          Returns:
              object: An instance of repository_class.
          """
          service = _create_service_api(
              self._credentials,
              service_name,
              version,
              kw.get('developer_key'),
              kw.get('cache_discovery', False),
              self._http or _build_http())
  
          return ServiceClient(
              gcp_service=service,
              component=component,
              credentials=self._credentials,
              rate_limiter=self._rate_limiter,
              use_cached_http=self._use_cached_http,
              http=self._http)