namespace System.Collections.Generic;
/// A sequence whose items come as they're ready: gone through by `await
/// foreach`, written as an `async` iterator (`async IAsyncEnumerable<T>
/// F() { … await …; yield return x; … }`).
[Intrinsic]
public interface IAsyncEnumerable<out T> {
IAsyncEnumerator<T> GetAsyncEnumerator();
}