def run(self, sync):
        if not self.age:
            return
        app = sync.app
        with app.db.getSession() as session:
            for change in session.getChanges(self.age % 'status:closed age:%s'):
                t = PruneChangeTask(change.key, priority=self.priority)
                self.tasks.append(t)
                sync.submitTask(t)
        t = VacuumDatabaseTask(priority=self.priority)
        self.tasks.append(t)
        sync.submitTask(t)
dataset/ETHPy150Open openstack/gertty/gertty/sync.py/PruneDatabaseTask.run/swapped operands of `%`