@staticmethod
def _nucmer_hits_to_percent_identity(nucmer_hits):
    """Input is hits made by self._parse_nucmer_coords_file.
           Returns dictionary. key = contig name. Value = percent identity of hits to that contig"""
    percent_identities = {}
    max_lengths = {}
    for contig in nucmer_hits:
        max_length = -1
        percent_identity = 0
        for hit in nucmer_hits[contig]:
            if hit.hit_length_qry > max_length:
                max_length = hit.hit_length_qry
                percent_identity = hit.percent_identity
        percent_identities[contig] = percent_identity
    return percent_identities
