# File lib/bunny/client09.rb, line 267
    def send_frame(*args)
      args.each do |data|
        data         = data.to_frame(channel.number) unless data.is_a?(Qrack::Transport09::Frame)
        data.channel = channel.number

        @logger.info("send") { data } if @logging
        write(data.to_s)

        # Monitor client activity for heartbeat purposes
        @message_out = true
      end

      nil
    end