Plan.seen.step: def of ezx@1.11.0.0
Import: import ezx@1.11.0.0/src/tool/plan.bend as Plan
Lines 805-811 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=805&end_line=811

import Base

# one step of a scan that may stop at the first hit
def seen.step(here: Bool, rest: Unit -> Bool) -> Bool:
  match here:
    case True{}:
      True{}
    case False{}:
      rest(Unit{})

Uses (2):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Unit