def __json__(self):
        return {'extension': self.EXTENSION_NAME,
                'response': self.response.__json__(),
                'noContextTakeover': self.noContextTakeover}
implements the actual db update on a per calendar base
dataset/ETHPy150Open crossbario/autobahn-python/autobahn/websocket/compress_snappy.py/PerMessageSnappyResponseAccept.__json__--crossover with--dataset/ETHPy150Open pimutils/khal/khal/khalendar/khalendar.py/CalendarCollection._db_update