040000 tree 420f505873388cffd7e68b42f7c52fc47c26e65a	Finalizer
040000 tree c636f6c08006dd83dddabd0867a58056e4df5649	WeakReference
100644 blob 7967012547f1bca88e546a3d5447d62ba7f3cd34	gc_utils_lib.dart
100644 blob 9cac0bc94ddd04091972f52732b77a6bfc183aab	pubspec.yaml