Function stacked_commit 

pub fn stacked_commit<H: MerkleHasher>(
    hasher: &H,
    l_skip: usize,
    n_stack: usize,
    log_blowup: usize,
    k_whir: usize,
    traces: &[&ColMajorMatrix<H::F>],
) -> Result<(H::Digest, StackedPcsData<H::F, H::Digest>), StackedPcsError>
where
    H::F: TwoAdicField + Ord,
    H::Digest: Copy,