code: func (t *Transaction) ExtractIDsFromStringIndex(setKey, destKey, min, max string) {
  	t.Script(extractIdsFromStringIndexScript, redis.Args{setKey, destKey, min, max}, nil)
  }
docs: // ExtractIDsFromStringIndex is a small function wrapper around a Lua script.
  // The script will extract the ids from a sorted set identified by setKey using
  // ZRANGEBYLEX with the given min and max, and then store them in a sorted set
  // identified by destKey. All the scores for the sorted set should be 0, and the
  // members should follow the format <value>\x00<id>, where <value> is the string
  // value, \x000 is the NULL ASCII character and <id> is the id of the model
  // with that value. As with all string indexes in Zoom, the value cannot contain
  // the NULL ASCII character or the DEL character (codepoints 0 and 127
  // respectively). Note that the stored ids are sorted in ASCII order according
  // to their corresponding string values.