code: def setup_schedule(self):
          "Called when schedule is intialized. Fetch schedules from DB etc here"
  
          log.info("SQLAlchemyScheduler.setup_schedule called")
  
          if 'celery.backend_cleanup' not in self._schedule:
              self._schedule['celery.backend_cleanup'] = ScheduleEntry(
                  name='celery.backend_cleanup',
                  task='celery.backend_cleanup',
                  schedule=crontab('0', '4', '*'),
                  options= {'expires': 12 * 3600}
              f setup_schedule(self):
          "Called when schedule is intialized. Fetch schedules from DB etc here"
  
          log.info("SQLAlchemyScheduler.setup_schedule called")
  
          if 'celery.backend_cleanup' not in self._schedule:
              self._schedule['celery.backend_cleanup'] = ScheduleEntry(
                  name='celery.backend_cleanup',
                  task='celery.backend_cleanup',
                  schedule=crontab('0', '4', '*'),
                  options= {'expires': 12 * 3600}
              )
docs: Called when schedule is intialized. Fetch schedules from DB etc here