040000 tree 4c5b234f9fe575254cbbbec2dd227c789fddd1f7	annotations
040000 tree fc2061d7eba98c4e0a4224356f71642a071bb115	exceptions
040000 tree 84daa8dad54a6e0e12388dfc6f03dd667d6c2555	protocol
040000 tree 845109477ab27147f92e25ad19b80f8db3adc7e4	types
040000 tree 1e99b96fcbcdc679ea64ef107116d3f905eec514	util