code: def return_error(self, status, payload=None):
          
          resp = None
          if payload is not None:
              payload = json.dumps(payload)
              resp = self.make_response(payload, status=status)
  
          if status in [405]:
              abort(status)
          else:
              abort(status, response=resp)
docs: Error handler called by request handlers when an error occurs and the request
          should be aborted.
  
          Usage::
  
              def handle_post_request(self, *args, **kwargs):
  
                  self.request_handler = self.get_request_handler()
                  try:
                      self.request_handler.process(self.get_data())
                  except SomeException as e:
                      self.return_error(400, payload=self.request_handler.errors)
  
                  return self.return_create_response()