code: def sendResponse(self, message, UUID, routing_key):
          
          self.sendMessage(
              exchange=self.output_exchange,
              routing_key=routing_key,
              message=message,
              UUID=UUID
          )
docs: Send `message` to ``self.output_exchange`` with routing key
          ``self.output_key``, ``self.content_type`` in ``delivery_mode=2``.
  
          Args:
              message (str): message which will be sent
              UUID: unique identification of message
              routing_key (str): which routing key to use to send message back