code: def _get_longest_hit_at_qry_start(self, nucmer_hits):
          '''Input: list of nucmer hits to the same query. Returns the longest hit to the start of the query, or None if there is no such hit'''
          hits_at_start = [hit for hit in nucmer_hits if self._is_at_qry_start(hit)]
          return self._get_longest_hit_by_ref_length(hits_at_startf _get_longest_hit_at_qry_start(self, nucmer_hits):
          '''Input: list of nucmer hits to the same query. Returns the longest hit to the start of the query, or None if there is no such hit'''
          hits_at_start = [hit for hit in nucmer_hits if self._is_at_qry_start(hit)]
          return self._get_longest_hit_by_ref_length(hits_at_start)
docs: Input: list of nucmer hits to the same query. Returns the longest hit to the start of the query, or None if there is no such hit