040000 tree 4fe3a2081508ebf9bb9901ecaaf3e9b2b21f7c81	common
040000 tree b3587ef6a740085fd9d1aca39fcd3deccafecbf5	import
040000 tree d9154457ab1d3f5ce43df01c4225186183b85c70	proto
040000 tree 8ef4bf7d91039cce4992479b5a1197a55388447c	types