/**
* gtk_page_setup_unix_dialog_new:
- * @title: the title of the dialog, or %NULL
- * @parent: transient parent of the dialog, or %NULL
+ * @title: (allow-none): the title of the dialog, or %NULL
+ * @parent: (allow-none): transient parent of the dialog, or %NULL
*
* Creates a new page setup dialog.
*