Closing the acquisition of Warner is expected to take at least nine months as regulators examine the deal. If and when the purchase happens, Paramount has said it will find $6 billion of “cost synergies.”
调试技巧：加打印语句观察每轮变化，更多细节参见51吃瓜
"promoCode": "FREE_YEAR_VIP"，这一点在服务器推荐中也有详细论述
// Stateful transform with resource cleanup