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/// ```
/// use std::time::Duration;
/// use linera_kywasmtime::*;
///
/// async fn demo_sleep() {
/// let duration = Duration::from_millis(500);
/// sleep(duration).await;
/// }
///
/// async fn demo_sleep_until() {
/// let deadline = Instant::now() + Duration::from_millis(200);
/// sleep_until(deadline).await;
/// }
///
/// async fn demo_interval() {
/// let mut period = Duration::from_secs(1);
/// let mut interval = interval(period);
/// interval.tick().await;
/// println!("tick 1");
/// interval.tick().await;
/// println!("tick 2");
/// interval.tick().await;
/// println!("tick 3");
/// }
///
/// async fn demo_interval_at() {
/// let mut start = Instant::now() + Duration::from_millis(200);
/// let mut period = Duration::from_secs(1);
/// let mut interval = interval_at(start, period);
/// interval.tick().await;
/// println!("tick 1");
/// interval.tick().await;
/// println!("tick 2");
/// interval.tick().await;
/// println!("tick 3");
/// }
///
/// async fn demo_timeout() {
/// let duration = Duration::from_millis(500);
/// match timeout(duration, async move {
/// // simulate long action
/// sleep(Duration::from_millis(500));
/// 42
/// }).await {
/// Ok(result) => println!("{result}"),
/// Err(_) => println!("timeout"),
/// }
/// }
///
/// async fn demo_timeout_at() {
/// let deadline = Instant::now() + Duration::from_millis(200);
/// match timeout_at(deadline, async move {
/// // simulate long action
/// sleep(Duration::from_millis(500));
/// 42
/// }).await {
/// Ok(result) => println!("{result}"),
/// Err(_) => println!("timeout"),
/// }
/// }
/// ```
pub use ;
pub use ;
pub use ;
pub use ;