pub fn listen(_ty: RedirType, _addr: SocketAddr) -> io::Result<UdpRedirSocket> {
        unimplemented!("UDP transparent proxy is not supported on this platform")
    }
Create a new UDP socket binded to `addr`

This will allow listening to `addr` that is not in local host
crates/shadowsocks-service/src/local/redir/udprelay/sys/unix/not_supported.rs