System.Collections.Async.IAsyncEnumerable<T>
Exposes the asynchronous enumerator, which supports a simple iteration over a collection of typed items
namespace System.Collections.Async
{
public interface IAsyncEnumerable<T> : IAsyncEnumerable
{
new Task<IAsyncEnumerator<T>> GetAsyncEnumeratorAsync(CancellationToken cancellationToken = default(CancellationToken));
}
}