040000 tree 54dba5b0fe91832cf8052566fb5c5bb1c727e5ae	Finalizer
040000 tree 53b8cc280bc8a3e06ad900f0ce89cc85d3a7a040	WeakReference
100644 blob 850d30f576995116e007b5a62c1ba15911edfbf8	gc_utils_lib.dart
100644 blob 9cac0bc94ddd04091972f52732b77a6bfc183aab	pubspec.yaml