The Writer is not a concrete class. Any object that implements write(), end(), and abort() can be a writer making it easy to adapt existing APIs or create specialized implementations without subclassing. There's no complex UnderlyingSink protocol with start(), write(), close(), and abort() callbacks that must coordinate through a controller whose lifecycle and state are independent of the WritableStream it is bound to.
巴基斯坦三军新闻局局长乔杜里27日在新闻发布会上说，阿富汗方面从其境内向巴基斯坦开伯尔-普什图省的53个地点发动袭击。
，详情可参考Line官方版本下载
第六十七条 从事旅馆业经营活动不按规定登记住宿人员姓名、有效身份证件种类和号码等信息的，或者为身份不明、拒绝登记身份信息的人提供住宿服务的，对其直接负责的主管人员和其他直接责任人员处五百元以上一千元以下罚款；情节较轻的，处警告或者五百元以下罚款。。爱思助手下载最新版本对此有专业解读
await blocking.writer.write(chunk5); // waits until consumer reads