100644 blob 1cc5c2d9bab238a19de82f6ec20a06da827dfc0a	optional.h
040000 tree 2389de31c640b04fab9227f9004e12c4e7b5b26a	strings
040000 tree 59bb6303dab514fd9976d87a320ce5b355f0aa54	third_party