040000 tree 2cc3777c2d49184c410fe67d8ab579c1c648b812	common
040000 tree b3587ef6a740085fd9d1aca39fcd3deccafecbf5	import
040000 tree 7656aa1fef78eec600b6b2ebf32ef37b147ed8eb	proto
040000 tree 649bcb42b763882f1c42723fa70d96b2a64d1664	types