def opens.step
import ezx@1.11.0.0/src/tool/plan.bend as Planimport Base
import ezx@1.11.0.0/src/tool/world.bend as TW
388# a question kept when it is still open
389def opens.step(open: Bool, ask: TW.Ask, rest: List<&2, TW.Ask>) -> List<&2, TW.Ask>:
390 match open:
391 case True{}:
392 ask <> rest
393 case False{}:
394 rest