OptionWithValues(names: Set<String>, metavarExplicit: String?, metavarDefault: String?, nvalues: Int, help: String, : Boolean, envvar: String?, envvarSplit: Regex, parser: OptionWithValuesParser, transformValue: ValueTransformer<ValueT>, transformEach: ArgsTransformer<ValueT, EachT>, transformAll: CallsTransformer<EachT, AllT>)
An Option that takes one or more values.