Function combine::stream::uncons_while

pub fn uncons_while<I, F>(
    input: &mut I,
    predicate: F
) -> ConsumedResult<I::Range, I>where
    F: FnMut(I::Item) -> bool,
    I: ?Sized + RangeStream,
    I::Range: Range,

Removes items from the input while predicate returns true.