def ssh_CHANNEL_WINDOW_ADJUST(self, packet):
        """
        The other side is adding bytes to its window.  Payload::
            uint32  local channel number
            uint32  bytes to add

        Call the channel's addWindowBytes() method to add new bytes to the
        remote window.
        """
        localChannel, bytesToAdd = struct.unpack('>2L', packet[:8])
        channel = self.channels[localChannel]
        log.callWithLogger(channel, channel.addWindowBytes, bytesToAdd)

        The other side is adding bytes to its window.  Payload::
            uint32  local channel number
            uint32  bytes to add

        Call the channel's addWindowBytes() method to add new bytes to the
        remote window.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/conch/ssh/connection.py