code: def _extract_gcs_api_response_error(message):
    
    try:
      if len(message) == 3:
        # Try treat the last part as JSON
        data = json.loads(message[2])
        return data['error']['errors'][0]['message']
    except Exception:
      pass
    return message
docs: A helper function to extract user-friendly error messages from service exceptions.
  
    Args:
      message: An error message from an exception. If this is from our HTTP client code, it
          will actually be a tuple.
  
    Returns:
      A modified version of the message that is less cryptic.