040000 tree b242a71956d2004611db9f96980984186759bdca	client
040000 tree 51723633e6c32e90575fb623ac9c9a56ef51d8f7	end2end
040000 tree 24329ebbf8aac1fffd9a982bee3ef64083f06e65	interop
040000 tree 1cfafe485476af282c9ba80989d7af776930741d	qps
040000 tree aee9ed2ef17d767d83b56405deaf568908ed3b74	server
040000 tree c99639b3390464dc8f1afb0caf722e7e4fd7f7f5	util