Plan.why.then: def of ezx@1.13.0.0
Import: import ezx@1.13.0.0/src/lock/plan.bend as Plan
Lines 557-558 of ezx@1.13.0.0/src/lock/plan.bend: https://jend.leeeet.dev/read.txt?path=ezx@1.13.0.0/src/lock/plan.bend&start_line=557&end_line=558

import Base

def why.then(+why: String, rest: Unit -> String) -> String:
  why.then.at(String.is_empty(why), why, rest)

Uses (4):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String.is_empty
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Unit
  https://jend.leeeet.dev/definition.txt?path=ezx@1.13.0.0/src/lock/plan.bend&name=why.then.at