323 struct GroupOperationsVTable<Parent, Child>(PhantomData<(Parent, Child)>);
325 impl<Parent, Child> GroupOperationsVTable<Parent, Child>
327     Parent: GroupOperations<Child = Child>,
328     Child: 'static,
361         let child_group = <Arc<Group<Child>> as InPlaceInit<Group<Child>>>::try_pin_init(  in make_group()
371                 unsafe { Group::<Child>::group(child_group_ptr) }.cast_mut()  in make_group()
402         let r_child_group_ptr = unsafe { Group::<Child>::container_of(c_child_group_ptr) };  in drop_item()
407             let arc: Arc<Group<Child>> = unsafe { Arc::from_raw(r_child_group_ptr.cast_mut()) };  in drop_item()
491     type Child: 'static;  typedef
501     fn make_group(&self, name: &CStr) -> Result<impl PinInit<Group<Self::Child>, Error>>;  in make_group()  argument
513     fn drop_item(&self, _child: ArcBorrow<'_, Group<Self::Child>>) {  in drop_item()  argument
746             pub const fn new_with_child_ctor<const N: usize, Child>(
751                 Data: GroupOperations<Child = Child>,
752                 Child: 'static,
757                         ct_group_ops: GroupOperationsVTable::<Data, Child>::vtable_ptr().cast_mut(),