code: def LoadFromStorage(cls, path=None):
      
      if path is None:
        path = os.path.join(os.path.expanduser('~'), 'googleads.yaml')
  
      return cls(**googleads.common.LoadFromStorage(
          path, cls._YAML_KEY, cls._REQUIRED_INIT_VALUES,
          cls._OPTIONAL_INIT_VALUES))
docs: Creates an AdWordsClient with information stored in a yaml file.
  
      Args:
        [optional]
        path: The path string to the file containing cached AdWords data.
  
      Returns:
        An AdWordsClient initialized with the values cached in the file.
  
      Raises:
        A GoogleAdsValueError if the given yaml file does not contain the
        information necessary to instantiate a client object - either a
        required key was missing or an OAuth2 key was missing.