def key.cleared
import yaml-for-bend@0.1.1.0/scan.bend as Scanimport Base
559def key.cleared(keys: List<&2, SKey>) -> List<&2, SKey>:
560 match keys:
561 case Nil{}:
562 []
563 case Con{k, +rest}:
564 match k:
565 case SKey{possible, required, number, at, tab, low}:
566 SKey{False{}, required, number, at, tab, low.of(rest)} <> rest