{"ast_node_type":"other","tokens":[{"end":91,"kind":"keyword","start":0,"text":"UndoLog::DuplicateOpaqueType"}]}
            UndoLog::DuplicateOpaqueType => self.opaque_type_storage.pop_duplicate_entry(),
        match undo {
            UndoLog::OpaqueTypes(key, idx) => self.opaque_type_storage.remove(key, idx),