extern crate trpl; // required for mdbook test use std::{thread, time::Duration}; fn main() { trpl::run(async { // We will call `slow` here later }); } // ANCHOR: slow fn slow(name: &str, ms: u64) { thread::sleep(Duration::from_millis(ms)); println!("'{name}' ran for {ms}ms"); } // ANCHOR_END: slow