@ -157,6 +157,7 @@ pub trait Stream {
/// assert_eq!(s.next().await, Some((0, 'a')));
/// assert_eq!(s.next().await, Some((1, 'b')));
/// assert_eq!(s.next().await, Some((2, 'c')));
/// assert_eq!(s.next().await, None);
///
/// #
/// # }) }