Cli.first_option_name: def of cli@0.2.0.0
Import: import cli@0.2.0.0/cli.bend as Cli
Lines 2945-2947 of cli@0.2.0.0/cli.bend: https://jend.leeeet.dev/read.txt?path=cli@0.2.0.0/cli.bend&start_line=2945&end_line=2947

import Base

def first_option_name(+token: String) -> String:
  Bool.pick(String, String.starts_with(token, "--"),
    before_equal(token), String.take(token, 2n))

Uses (5):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool.pick
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String.starts_with
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String.take
  https://jend.leeeet.dev/definition.txt?path=cli@0.2.0.0/cli.bend&name=before_equal