040000 tree 4c5b234f9fe575254cbbbec2dd227c789fddd1f7	annotations
040000 tree fc2061d7eba98c4e0a4224356f71642a071bb115	exceptions
040000 tree cb7f6d9514617210d6200ad2832ac2b6314fabee	protocol
040000 tree e07ff75f340d2a121905ef09d1a6b5c930f44848	types
040000 tree 1e99b96fcbcdc679ea64ef107116d3f905eec514	util