List.uncons: def of bend-lawful-stdlib@0.1.0.0
Import: import bend-lawful-stdlib@0.1.0.0/src/list.bend as List
Lines 16-21 of bend-lawful-stdlib@0.1.0.0/src/list.bend: https://jend.leeeet.dev/read.txt?path=bend-lawful-stdlib@0.1.0.0/src/list.bend&start_line=16&end_line=21

import Base

def uncons(-A: Data, xs: List<&2, A>) -> Step<&2, A, List<&2, A>>:
  match xs:
    case Nil{}:
      Stop{}
    case h <> t:
      Next{h, t}

Uses (2):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=bend-lawful-stdlib@0.1.0.0/src/list.bend&name=Step