Cli.env.names.forest: def of shake@0.7.0.0
Import: import shake@0.7.0.0/src/cli.bend as Cli
Lines 1784-1792 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=1784&end_line=1792

import Base

# the env vars of every subcommand's arguments, depth first
def env.names.forest(subs: List<&2, Sub>) -> List<&2, String>:
  match subs:
    case Nil{}:
      []
    case Con{hh, tt}:
      Sub{_n, _a, args, kids} = hh
      List.append(&2, String, env.names.args(args),
        List.append(&2, String, env.names.forest(kids), env.names.forest(tt)))

Uses (5):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List.append
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String
  https://jend.leeeet.dev/definition.txt?path=shake@0.7.0.0/src/cli.bend&name=Sub
  https://jend.leeeet.dev/definition.txt?path=shake@0.7.0.0/src/cli.bend&name=env.names.args