You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: magicsock.rs
    path of file: ./repos/iroh/iroh-net/src
    
    the code of the file until where you have to start completion: //! Implements a socket that can change its communication path while in use, actively searching for the best way to communicat
    
    fn local_addr(&self) -> (io::Result<SocketAddr>, Option<io::Result<SocketAddr>>) {
        // TODO: think more about this
        // needs to pretend ipv6 always as the fake addrs are ipv6
        let mut ipv6_addr = None;
        if let Some(ref conn) = self.pconn6 {
            ipv6_addr = Some(conn.local_addr());
        }
        let ipv4_addr = self.pconn4.local_addr();

        (ipv4_addr, ipv6_addr)
    }