Function separated_n_

fn separated_n_<I, O, C, O2, E, P, S>(
    count: usize,
    parser: &mut P,
    separator: &mut S,
    input: &mut I,
) -> PResult<C, E>
where
    I: Stream,
    C: Accumulate<O>,
    P: Parser<I, O, E>,
    S: Parser<I, O2, E>,
    E: ParserError<I>,