pub fn ce(&self) -> &'static ClassEntry {
        // SAFETY: There are only two values that can be stored in the atomic ptr: null
        // or a static reference to a class entry. On the latter case,
        // `as_ref()` will return `None` and the function will panic.
        unsafe { self.ce.load(Ordering::SeqCst).as_ref() }
            .expect("Attempted to retrieve class entry before it has been stored.")
    }
Retrieves a reference to the stored class entry.

# Panics

Panics if there is no class entry stored inside the class metadata.
src/class.rs