040000 tree 4c5b234f9fe575254cbbbec2dd227c789fddd1f7	annotations
040000 tree fc2061d7eba98c4e0a4224356f71642a071bb115	exceptions
040000 tree fc3973be03fba13783fed8a45efcb9df8affe308	protocol
040000 tree 1d2cd948b1dd48095db898d7a8e02e46d78399b4	types
040000 tree 86e8c98c814c73086accc2e0a3cc8d1a0adf7ff4	util