code: func (v *MenuButton) GetMenuModel() *glib.MenuModel {
  	c := C.gtk_menu_button_get_menu_model(v.native())
  	if c == nil {
  		return nil
  	}
  	return &glib.MenuModel{glib.Take(unsafe.Pointer(c))}
  }
docs: // GetMenuModel is a wrapper around gtk_menu_button_get_menu_model().