fn fill_between(
prev_lhs: Option<LineNumber>,
next_lhs: Option<LineNumber>,
prev_rhs: Option<LineNumber>,
next_rhs: Option<LineNumber>
) -> Vec<(Option<LineNumber>, Option<LineNumber>)>ⓘNotable traits for Vec<u8, A>impl<A> Write for Vec<u8, A>where
A: Allocator,