def METHOD_NAME(socket):
    cmd = array.array('B', [0] * DISCOVER_REQUEST_SIZE)
    cmd[0] = DISCOVER_PROTO_ID # Tag for identification of the protocol
    cmd[1] = DISCOVER_REQUEST  # Request command
    cmd[2] = DISCOVER_ALL
    chksum = 0
    for c in cmd[:3]:
        chksum -= c;
    cmd[3] = chksum & 0xff
    socket.sendto(cmd, ('<broadcast>', PORT))