def __init__(self, instance, *args, **kwargs):
        super(InstanceEvent, self).__init__(*args, **kwargs)
        self.instance = instance
When :meth:`.API._req_files` is called with `o='filename'` and
dataset/ETHPy150Open mozilla/django-tidings/tidings/events.py/InstanceEvent.__init__--crossover with--dataset/ETHPy150Open shichao-an/115wangpan/u115/api.py/API._req_aps_natsort_files