pub fn try_combine_lo_hi_openings(
opening_lo: &PedersenOpening,
opening_hi: &PedersenOpening,
bit_length: usize,
) -> Option<PedersenOpening>
pub fn try_combine_lo_hi_openings(
opening_lo: &PedersenOpening,
opening_hi: &PedersenOpening,
bit_length: usize,
) -> Option<PedersenOpening>