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//! A Rust async runtime abstration library.
//!
//! ## Features
//!
//! - tokio: enable the tokio implementation *(default)*
//! - smol: enable the smol implementation
//! - async-global-executor: enable the async-global-executor implementation
//! - async-io: enable the async-io reactor implementation
//!
//! ## Example
//!
//! ```rust
//! # #[cfg(feature="tokio")]
//! # {
//! use async_rs::{Runtime, TokioRuntime, traits::*};
//! use std::{io, time::Duration};
//!
//! async fn get_a(rt: &TokioRuntime) -> io::Result<u32> {
//! rt.spawn_blocking(|| Ok(12)).await
//! }
//!
//! async fn get_b(rt: &TokioRuntime) -> io::Result<u32> {
//! rt.spawn(async { Ok(30) }).await
//! }
//!
//! async fn tokio_main(rt: &TokioRuntime) -> io::Result<()> {
//! let a = get_a(rt).await?;
//! let b = get_b(rt).await?;
//! rt.sleep(Duration::from_millis(500)).await;
//! assert_eq!(a + b, 42);
//! Ok(())
//! }
//!
//! fn main() -> io::Result<()> {
//! let rt = Runtime::tokio()?;
//! rt.block_on(tokio_main(&rt))
//! }
//! # }
//! ```
pub use *;
pub use *;