def __init__(self, port, proto, interface='', maxPacketSize=8192,
                 reactor=None, listenMultiple=False):
        """
        @see: L{twisted.internet.interfaces.IReactorMulticast.listenMulticast}
        """
        Port.__init__(self, port, proto, interface, maxPacketSize, reactor)
        self.listenMultiple = listenMultiple

        @see: L{twisted.internet.interfaces.IReactorMulticast.listenMulticast}
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/internet/udp.py