code: def _fetch_all_error_message(self, response):
          
  
          response_content_string = response.content.decode()
  
          try:
              error_dict = converter.json_to_class(dict, response_content_string)
  
              return self._fetch_error_descriptions(error_dict)
          except ValueError:
              return [response_content_string]
docs: :type response: requests.Response
  
          :rtype: list[str]