'The server wants us to return a channel.  If the requested channel is
our TestChannel, return it, otherwise return None.'

def lookupChannel(self, channelType, windowSize, maxPacket, data):

    if (channelType == TestChannel.name):
        return TestChannel(remoteWindow=windowSize, remoteMaxPacket=maxPacket, data=data, avatar=self)
    elif (channelType == 'conch-error-args'):
        raise error.ConchError(self._ARGS_ERROR_CODE, 'error    args    in    wrong    order')
