@celery.task()
def expire_old_coupons():
    return Coupon.expire_old_coupons()
:param u: uploaded torrent file
dataset/ETHPy150Open nickjj/build-a-saas-app-with-flask/catwatch/blueprints/billing/tasks.py/expire_old_coupons--crossover with--dataset/ETHPy150Open shichao-an/115wangpan/u115/api.py/API._req_lixian_torrent