option library Null safety

Classes

Option
A command-line option. [...]
OptionType
What kinds of values an option accepts.

Functions

newOption(String name, String? abbr, String? help, String? valueHelp, Iterable<String>? allowed, Map<String, String>? allowedHelp, dynamic defaultsTo, Function? callback, OptionType type, {bool? negatable, bool? splitCommas, bool mandatory = false, bool hide = false, List<String> aliases = const []}) Option
Creates a new Option. [...]