def return_msg(self, reply_code, reply_text, exchange, routing_key):
        args = Writer()
        args.write_short(reply_code).\
            write_shortstr(reply_text).\
            write_shortstr(exchange).\
            write_shortstr(routing_key)

        self.send_frame(MethodFrame(self.channel_id, 60, 50, args))
Return a failed message.  Not named "return" because python interpreter
dataset/ETHPy150Open agoragames/haigha/haigha/classes/basic_class.py/BasicClass.return_msg