@property
    def serialization_id(self):
        '''
        Shorter serialization id than used by default
        '''
        if 10 ** 10 >= self.object_id or self.verb.id >= 10 ** 3:
            raise TypeError('Fatal: object_id / verb have too many digits !')
        if not self.time:
            raise TypeError('Cant serialize activities without a time')
        milliseconds = str(int(datetime_to_epoch(self.time) * 1000))

        # shorter than the default version
        serialization_id_str = '%s%0.2d%0.2d' % (
            milliseconds, self.object_id % 100, self.verb.id)
        serialization_id = int(serialization_id_str)

        return serialization_id
dataset/ETHPy150Open tschellenbach/Stream-Framework/stream_framework/tests/feeds/cassandra.py/CustomActivity.serialization_id/swapped operands of `>=`