Clear the object of all local caches of API methods, so
        that the next time any properties are accessed they will be refreshed from
        the service.

def clear_cache(self):
        """Clear the object of all local caches of API methods, so
        that the next time any properties are accessed they will be refreshed from
        the service.
        """
        super(TrainingJobAnalytics, self).clear_cache()
        self._data = defaultdict(list)
        self._time_interval = self._determine_timeinterval()