code: def get_best_match(text_log_error):
      
      score_cut_off = 0.7
      return (text_log_error.matches.filter(score__gt=score_cut_off)
                                    .order_by("-score", "-classified_failure_id")
                                    .select_related('classified_failure')
                                    .first())
docs: Get the best TextLogErrorMatch for a given TextLogErrorMatch.
  
      Matches are further filtered by the score cut off.