040000 tree a1e9307edc473e45263732dd1d45ce0a51baa525	common
040000 tree 3303fd6282277ecd651939c302776c1c25f2199c	import
040000 tree 1791e2f2b97fe948473c2f5bb866f2a81f68cd78	proto
040000 tree 2df815fde7564c571075e104f762494764574601	types