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.
“绝不能出现这边宣布全面脱贫，那边又出现规模性返贫”“巩固拓展脱贫攻坚成果是全面推进乡村振兴的底线任务”……
，更多细节参见91视频
"result": {
Distort reality