pub fn get_basepair_probs_contra<T>(
    fold_sums: &FoldSums<T>,
    seq_len: usize,
    fold_scores: &FoldScores<T>,
    allows_short_hairpins: bool,
    fold_score_sets: &FoldScoreSets
) -> HashMap<(T, T), f32, BuildHasherDefault<AHasher>, Global>where
    T: HashIndex,