Sets the context menu model for this's items.
When a context menu is shown for an item, it will be constructed from the provided menu model. Use the [signal@Sidebar:
AdwSidebar:setup-menu] signal to set up the menu actions for the particular item.
[property@Sidebar:menu-model] will be preferred over this model if set.
| this |
a sidebar |
| menu_model |
a menu model |