Commands.first: def of bend-kit-commands@0.4.0.0
Import: import bend-kit-commands@0.4.0.0/commands.bend as Commands
Lines 94-102 of bend-kit-commands@0.4.0.0/commands.bend: https://jend.leeeet.dev/read.txt?path=bend-kit-commands@0.4.0.0/commands.bend&start_line=94&end_line=102

import Base

# r's value, unless r or then z failed.
def first(-A: Type, r: Result<&1, &1, U32 & String, A>, z: Result<&1, &1, U32 & String, Unit>) -> Result<&1, &1, U32 & String, A>:
  match r z:
    case Fail{e} _:
      Fail{e}
    case Done{x} Fail{e}:
      Fail{e}
    case Done{x} Done{u}:
      Done{x}

Uses (5):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Pair
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Result
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Unit