Shrink.list.ones: def of bend-kit-property@0.4.0.0
Import: import bend-kit-property@0.4.0.0/shrink.bend as Shrink
Lines 81-88 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=81&end_line=88

import Base

# One element replaced by one of its candidates: the head's first, then the tail's.
def list.ones(~A: Data, ~shrink: A -> List<&1, A>, +xs: List<&2, A>) -> List<&1, List<&2, A>>:
  match xs:
    case Nil{}:
      Nil{}
    case h <> t:
      List.append(&1, List<&2, A>, list.heads(A, shrink(h), t),
        list.cons(A, h, list.ones(~A, ~shrink, t)))

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=List.append
  https://jend.leeeet.dev/definition.txt?path=bend-kit-property@0.4.0.0/shrink.bend&name=list.cons
  https://jend.leeeet.dev/definition.txt?path=bend-kit-property@0.4.0.0/shrink.bend&name=list.heads