/**
     * Emits warning messages if deprecated options are used.
     *
     * @param printWriter the string consumer to use for output
     */
    default void warnAboutDeprecatedOptions(@Nonnull ParserRequest request, @Nonnull Consumer<String> printWriter) {}

    /**
     * Displays help information for these options.
     *
     * @param printWriter the string consumer to use for output