# File lib/familia/redisobject.rb, line 366
    def unshift *values
      values.flatten.compact.each { |v| redis.lpush rediskey, to_redis(v) }
      # TODO: test maxlength
      redis.ltrim rediskey, 0, @opts[:maxlength] - 1 if @opts[:maxlength]
      update_expiration
      self
    end