Function get_alignments_with 

pub fn get_alignments_with<A, B, N>(
    a: &[A],
    b: &[B],
    norm: &N,
) -> (Alignment, Alignment)
where
    A: AsRef<str>,
    B: AsRef<str>,
    N: Normalizer + ?Sized,

Aligns two token sequences with a caller-provided comparison form.