040000 tree d7c5b29fae3736f160cecbf1d42b70abb774614d	common
040000 tree 8cf96d33e8c580704402ed0c7b8263839d4a728a	examples
040000 tree 89cd720c6978e0c1cd838f4209f0085c07dab975	io
040000 tree 31f925fa9ee4454a14a1bbb920e2cc691c4f7317	protocol
040000 tree 95e9a4091a1b076e07de88015ade7652caa3b20f	registry
040000 tree 538776c4d6183660d3990569e1469cb0da3ea7cc	util