pub fn take_diff<T: SizedType>(
old_skeleton: &StateTreeSkeleton<T>,
new_skeleton: &StateTreeSkeleton<T>,
) -> HashSet<CopyFromPatch>pub fn take_diff<T: SizedType>(
old_skeleton: &StateTreeSkeleton<T>,
new_skeleton: &StateTreeSkeleton<T>,
) -> HashSet<CopyFromPatch>