Function mentat_parser_utils::value_and_span::of_exactly

pub fn of_exactly<'a, P, N, M, O>(p: P, n: N) -> OfExactly<P, N> where
    P: Parser<Input = Stream<'a>, Output = M>,
    N: Parser<Input = Stream<'a>, Output = O>,
    M: 'a + Streaming<'a>,