			Arc::new(VeryUnsafeCell::new(
				Obj {
					radios,
					parent_events: RadioGroupEvents::new(parent_ref, ctrl_ids),
				},
			)),
		);

		parent_ref.privileged_events_ref().wm(parent_ref.create_wm(), {
			let me = new_self.clone();
			move |_| { me.create(); 0 }
		});
