The constructor/setter accepts a null as a model so should the getter
*
* Returns the menu model used to populate the popover.
*
- * Returns: (transfer none): the menu model of @popover
+ * Returns: (transfer none) (nullable): the menu model of @popover
*/
GMenuModel *
gtk_popover_menu_get_menu_model (GtkPopoverMenu *popover)
*
* Returns the model from which the contents of @bar are taken.
*
- * Returns: (transfer none): a `GMenuModel`
+ * Returns: (transfer none) (nullable): a `GMenuModel`
*/
GMenuModel *
gtk_popover_menu_bar_get_menu_model (GtkPopoverMenuBar *bar)