Common.head: def of bend-collections-laws-crypto@1.0.0.0
Import: import bend-collections-laws-crypto@1.0.0.0/spec/lib/common.bend as Common
Lines 119-124 of bend-collections-laws-crypto@1.0.0.0/spec/lib/common.bend: https://jend.leeeet.dev/read.txt?path=bend-collections-laws-crypto@1.0.0.0/spec/lib/common.bend&start_line=119&end_line=124

import Base

def head(-A: Data, xs: List<&2, A>) -> Maybe<&2, A>:
  match xs:
    case Nil{}:
      None{}
    case Con{h, t}:
      Some{h}

Uses (2):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe