Shrink.list.heads: def of bend-kit-property@0.4.0.0
Import: import bend-kit-property@0.4.0.0/shrink.bend as Shrink
Lines 67-72 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=67&end_line=72

import Base

def list.heads(-A: Data, cs: List<&1, A>, +t: List<&2, A>) -> List<&1, List<&2, A>>:
  match cs:
    case Nil{}:
      Nil{}
    case c <> r:
      (c <> t) <> list.heads(A, r, t)

Uses (1):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List