Function a

13_async/rust/std_async/src/main.rs:5–10

()

use futures::FutureExt as BoxedExt;

async fn a() -> u8 {
    println!("Hello ...");
    async_std::task::sleep(std::time::Duration::from_secs(3)).await;
    println!("waited");
    1u8
}

async fn b() -> u8 {
    println!("... World!");