Shrink.nat: def of bend-kit-property@0.4.0.0
Import: import bend-kit-property@0.4.0.0/shrink.bend as Shrink
Lines 38-41 of bend-kit-property@0.4.0.0/shrink.bend: https://jend.leeeet.dev/read.txt?path=bend-kit-property@0.4.0.0/shrink.bend&start_line=38&end_line=41

import Base

# 0n, n - n/2, n - n/4, ..., n - 1. None for 0n.
def nat(n: Nat) -> List<&1, Nat>:
  +m = n
  nat.go(m, Nat.is_eq(m, 0n), m, m)

Uses (4):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.is_eq
  https://jend.leeeet.dev/definition.txt?path=bend-kit-property@0.4.0.0/shrink.bend&name=nat.go