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: select.rs
    path of file: ./repos/flume/examples
    
    the code of the file until where you have to start completion: #[cfg(feature = "select")]
use flume::Selector;

#[cfg(feature = "select")]
fn main() {
    // Create two channels
    let (red_tx, red_rx) = flume::unbounded();
    let (blue_tx, blue_rx) = flume::unbounded();

    // Spawn two threads that each send a message into their respective channel
    std::thread::spawn(move || { let _ = red_tx.send("Red"); });
    std::thread::spawn(move || { let _ = blue_tx.send("Blue"); });

    // Race them 
    
fn main() {
    // Create two channels
    let (red_tx, red_rx) = flume::unbounded();
    let (blue_tx, blue_rx) = flume::unbounded();

    // Spawn two threads that each send a message into their respective channel
    std::thread::spawn(move || { let _ = red_tx.send("Red"); });
    std::thread::spawn(move || { let _ = blue_tx.send("Blue"); });

    // Race them to see which one sends their message first
    let winner = Selector::new()
        .recv(&red_rx, |msg| msg)
        .recv(&blue_rx, |msg| msg)
        .wait()
        .unwrap();

    println!("{} won!", winner);
}