def _notify(self, filepath, events):
        for callback in self.callbacks:
            callback(self, filepath, events)
For date values that are tomorrow, today or yesterday compared to
dataset/ETHPy150Open kuri65536/python-for-android/python-modules/twisted/twisted/internet/inotify.py/_Watch._notify--crossover with--dataset/ETHPy150Open zorna/zorna/zorna/calendars/api.py/get_date_status