Scan.key.cleared: def of yaml-for-bend@0.1.1.0
Import: import yaml-for-bend@0.1.1.0/scan.bend as Scan
Lines 559-566 of yaml-for-bend@0.1.1.0/scan.bend: https://jend.leeeet.dev/read.txt?path=yaml-for-bend@0.1.1.0/scan.bend&start_line=559&end_line=566

import Base

def key.cleared(keys: List<&2, SKey>) -> List<&2, SKey>:
  match keys:
    case Nil{}:
      []
    case Con{k, +rest}:
      match k:
        case SKey{possible, required, number, at, tab, low}:
          SKey{False{}, required, number, at, tab, low.of(rest)} <> rest

Uses (4):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=yaml-for-bend@0.1.1.0/scan.bend&name=SKey
  https://jend.leeeet.dev/definition.txt?path=yaml-for-bend@0.1.1.0/scan.bend&name=low.of