def gone
import bend-collections@1.0.0.0/src/containers/lru.bend as Lruimport Base
import bend-collections@1.0.0.0/src/math/u64.bend as W
470def gone(lk: Array<U32>, +s: U32, now: W.U64) -> Array<U32> & Bool:
471 gone_r(s, now, Array.get(U32, lk, tidx(s)))