Plan.open: def of ezx@1.11.0.0
Import: import ezx@1.11.0.0/src/tool/plan.bend as Plan
Lines 384-386 of ezx@1.11.0.0/src/tool/plan.bend: https://jend.leeeet.dev/read.txt?path=ezx@1.11.0.0/src/tool/plan.bend&start_line=384&end_line=386

import Base
import ezx@1.11.0.0/src/tool/world.bend as TW

# whether a question of ours is still open
def open(+world: TW.World, +ask: TW.Ask) -> Bool:
  open.of(TW.heard(world, ask))

Uses (5):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=ezx@1.11.0.0/src/tool/plan.bend&name=open.of
  https://jend.leeeet.dev/definition.txt?path=ezx@1.11.0.0/src/tool/world.bend&name=Ask
  https://jend.leeeet.dev/definition.txt?path=ezx@1.11.0.0/src/tool/world.bend&name=World
  https://jend.leeeet.dev/definition.txt?path=ezx@1.11.0.0/src/tool/world.bend&name=heard