040000 tree 84ca8ef003fefc67e8ae3d4538e647a3ea6433da	common
040000 tree 067219eba304e84cd7c160faf68796dd3fc7ed9d	examples
040000 tree 505a9e06041f9c533f384b35f482977b12b40f16	io
040000 tree 70eb1d2a6ef78266954511fca4bdd0b6b717c15a	protocol
040000 tree 1e3a5f7c4b9958e325a7d1180106aa39c6748207	util