# File lib/amq/client/async/extensions/rabbitmq/basic.rb, line 18
              def reject(delivery_tag, requeue = true, multi = false)
                if multi
                  @connection.send_frame(Protocol::Basic::Nack.encode(self.id, delivery_tag, multi, requeue))
                else
                  super(delivery_tag, requeue)
                end
              end