ZREMRANGEBYSCORE

    1. dragonfly> ZADD myzset 1 "one"
    2. (integer) 1
    3. (integer) 1
    4. dragonfly> ZADD myzset 3 "three"
    5. (integer) 1
    6. dragonfly> ZREMRANGEBYSCORE myzset -inf (2
    8. 1) "two"
    9. 2) "2"
    10. 3) "three"