def ssh_UNIMPLEMENTED(self, packet):
        seqnum, = struct.unpack('>L', packet)
        self.receiveUnimplemented(seqnum)
Called when we receive a MSG_UNIMPLEMENTED message.  Payload::
dataset/ETHPy150Open twisted/twisted/twisted/conch/ssh/transport.py/SSHTransportBase.ssh_UNIMPLEMENTED