code: def error_respond(self):
          
          response = JSONRPCErrorResponse()
  
          response.error = self.message
          response.unique_id = None
          response._jsonrpc_error_code = self.jsonrpc_error_code
          if hasattr(self, 'data'):
              response.data = self.data
          return response
docs: Converts the error to an error response object.
  
          :return: An error response object ready to be serialized and sent to the client.
          :rtype: :py:class:`JSONRPCErrorResponse`