pub fn function<F, I, O, E, C>(f: F) -> Function<F, I, C> ⓘwhere
F: FnMut(Pin<&mut I>, &mut Context<'_>, &mut C) -> PolledResult<O, I>,
I: Positioned + ?Sized,
C: Default,Expand description
Wraps the function into a parser or an iterable parser.