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: udp-client.rs
    path of file: ./repos/tokio/examples
    
    the code of the file until where you have to start completion: //! A UDP client that just sends everything it gets via `stdio` in a single datagram, and then
//! waits for a reply.
//!
//! For the reasons of simplicity data from `stdio` is read until `EOF` in a blocking manner.
//!
//! You can test this out by running an echo server:
//!
//! ```
//!     $ cargo run --example echo-udp -- 127.0.0.1:8080
//! ```
//!
//! and running the client in another termi
    
async fn main() -> Result<(), Box<dyn Error>> {
    let remote_addr: SocketAddr = env::args()
        .nth(1)
        .unwrap_or_else(|| "127.0.0.1:8080".into())
        .parse()?;

    // We use port 0 to let the operating system allocate an available port for us.
    let local_addr: SocketAddr = if remote_addr.is_ipv4() {
        "0.0.0.0:0"
    } else {
        "[::]:0"
    }
    .parse()?;

    let socket = UdpSocket::bind(local_addr).await?;
    const MAX_DATAGRAM_SIZE: usize = 65_507;
    socket.connect(&remote_addr).await?;
    let data = get_stdin_data()?;
    socket.send(&data).await?;
    let mut data = vec![0u8; MAX_DATAGRAM_SIZE];
    let len = socket.recv(&mut data).await?;
    println!(
        "Received {} bytes:\n{}",
        len,
        String::from_utf8_lossy(&data[..len])
    );

    Ok(())
}