Cli.err.values: def of shake@0.7.0.0
Import: import shake@0.7.0.0/src/cli.bend as Cli
Lines 2214-2222 of shake@0.7.0.0/src/cli.bend: https://jend.leeeet.dev/read.txt?path=shake@0.7.0.0/src/cli.bend&start_line=2214&end_line=2222

import Base

# clap's line of the values a found argument allows, or nothing
def err.values(found: Maybe<&2, Arg>) -> String:
  match found:
    case None{}:
      ""
    case Some{aa}:
      Arg{_n, _s, _l, _k, _h, _r, _d, +cs} = aa
      Bool.pick(String, List.is_empty(&2, String, cs), "",
        "\n  [possible values: " ++ String.join(cs, ", ") ++ "]")

Uses (7):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool.pick
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List.is_empty
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String.append
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String.join
  https://jend.leeeet.dev/definition.txt?path=shake@0.7.0.0/src/cli.bend&name=Arg