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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _cache_get(self, date):
 """ Return cache data for the specified day; cache locally in this class. :param date: date to get data for :type date: datetime.datetime :return: cache data for date :rtype: dict """

        if date in self.cache_data:
            logger.debug('Using class-cached data for date %s',
                         date.strftime('%Y-%m-%d'))
            return self.cache_data[date]
        logger.debug('Getting data from cache for date %s',
                     date.strftime('%Y-%m-%d'))
        data = self.cache.get(self.project_name, date)
        self.cache_data[date] = data
        return data