040000 tree 420f505873388cffd7e68b42f7c52fc47c26e65a	Finalizer
040000 tree 3aa22709034e79e3ae035bd0bc50d3a430e14467	WeakReference
100644 blob 7967012547f1bca88e546a3d5447d62ba7f3cd34	gc_utils_lib.dart
100644 blob 9cac0bc94ddd04091972f52732b77a6bfc183aab	pubspec.yaml