040000 tree 4c5b234f9fe575254cbbbec2dd227c789fddd1f7	annotations
040000 tree fc2061d7eba98c4e0a4224356f71642a071bb115	exceptions
040000 tree 40f20081894c60280d5622eaf3279fa2abbeee0e	protocol
040000 tree d3b31b07c40fb2978bc60cfbce568bc7cc391848	types
040000 tree 43297d7be50d227659d891014cb12141764dca89	util