Recurrence.plan: def of bend-kit-scheduler@0.4.1.0
Import: import bend-kit-scheduler@0.4.1.0/recurrence.bend as Recurrence
Lines 55-61 of bend-kit-scheduler@0.4.1.0/recurrence.bend: https://jend.leeeet.dev/read.txt?path=bend-kit-scheduler@0.4.1.0/recurrence.bend&start_line=55&end_line=61

import Base

# None is an explicit invalid-zero-period result, not a zero cadence.
def plan(previous: Nat, completion: Nat, period: Nat, cadence: Cadence) -> Maybe<&2, Plan>:
  match period:
    case 0n:
      None{}
    case 1n+p:
      Some{positive(cadence, previous, completion, 1n+p)}

Uses (5):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=bend-kit-scheduler@0.4.1.0/recurrence.bend&name=Cadence
  https://jend.leeeet.dev/definition.txt?path=bend-kit-scheduler@0.4.1.0/recurrence.bend&name=Plan
  https://jend.leeeet.dev/definition.txt?path=bend-kit-scheduler@0.4.1.0/recurrence.bend&name=positive