'Write multiplexed data to the sideband.
:param channel: An int specifying the channel to write to.
:param blob: A blob of data (as a string) to send on this channel.'

def write_sideband(self, channel, blob):

    while blob:
        self.write_pkt_line((bytes(bytearray([channel])) + blob[:65515]))
        blob = blob[65515:]
