[−]Function opaque_pointer::object
pub unsafe fn object<'a, T>(pointer: *const T) -> &'a T
Reference to a object but without back to own it.
That's the difference with own_back<T>(), you must
use own_back<T>() to own it again and it will be dropped.
Safety
Invalid pointer or call it twice could cause an undefined behavior or heap error and a crash.