code: func (db *DB) ZRevRangeByScore(key []byte, min int64, max int64, offset int, count int) ([]ScorePair, error) {
  	return db.ZRangeByScoreGeneric(key, min, max, offset, count, true)
  }
docs: // ZRevRangeByScore gets the data with score at [min, max]
  // min and max must be inclusive
  // if no limit, set offset = 0 and count = -1