ZPOPMIN.BELOWkevy extension: pop up to count lowest members with score strictly below the threshold (delayed-job primitive).
| 语法 | ZPOPMIN.BELOW key below [count] |
| 分组 | zset |
| 参数个数 | -3 |
| 起始版本 | 3.0.0 |
| 标志 | write, extension |
| 复杂度 | O(M log N) — take_while stops at the first score at or above the threshold, so it never walks past the due prefix |
| Redis 兼容性 | kevy-only: a delayed-job primitive (score = due time); no Redis analogue |