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