function set_description(description: String): void {
    // Gjs wrapper for g_option_context_set_description()

Adds a string to be displayed in `--help` output after the list of options. This text often includes a bug reporting address.

Note that the summary is translated (see GLib.OptionContext.prototype.set_translate_func).

Since 2.12


a string to be shown in `--help` output after the list of options, or null