040000 tree 88ab2478395370ee3ad82247426cfe689308063b	client
040000 tree db9980f2efbc5378931e66a395ef1ba2a4de5d37	end2end
040000 tree a12b58711e234a442253057857902e2494400db0	interop
040000 tree 05a054553ed42930c9a1d85e3050637560279e93	qps
040000 tree aee9ed2ef17d767d83b56405deaf568908ed3b74	server
040000 tree 8fc7a0407eb0691c087231da35a40f6e1cc3b459	util