code: def from_file(cls, filename, *, strict=True):
          
          config = cls()
          config.load_from_file(filename, strict=strict)
          return config
docs: Create a new Config object from a configuration file.
  
          Args:
              filename (str): The location and name of the configuration file.
              strict (bool): If true raises a ConfigLoadError when the configuration
                  cannot be found.
  
          Returns:
              An instance of the Config class.
  
          Raises:
              ConfigLoadError: If the configuration cannot be found.