040000 tree 4c5b234f9fe575254cbbbec2dd227c789fddd1f7	annotations
040000 tree fc2061d7eba98c4e0a4224356f71642a071bb115	exceptions
040000 tree 8dcf1207f49bdfafae5c8ec46f9e7c325dea0939	protocol
040000 tree bb34593d9d6237c67ff8bc0cd2e57a6ed1f3bf7a	types
040000 tree 1e99b96fcbcdc679ea64ef107116d3f905eec514	util