040000 tree 4321bce1cf814b9d70193d6dfb834a9b13454bd7	common
040000 tree 052b4b1f2eaecf795358cf796042c7aa7f03ac80	import
040000 tree ce7570dc288e132c292e82b173582b24078c39f8	proto
040000 tree e3687df6bcff955b2179dd03a2d9d55a3d3fe72c	types