注意：请务必将 your_api_key_here 替换为您实际获取的 API Key。
You might assume this pattern is inherent to streaming. It isn't. The reader acquisition, the lock management, and the { value, done } protocol are all just design choices, not requirements. They are artifacts of how and when the Web streams spec was written. Async iteration exists precisely to handle sequences that arrive over time, but async iteration did not yet exist when the streams specification was written. The complexity here is pure API overhead, not fundamental necessity.
，这一点在Line官方版本下载中也有详细论述
春节刚过，日产便率先出手，一次性更新了四款车。
居民会议有权撤销或者变更居民代表会议和居民委员会不适当的决定。居民代表会议有权撤销或者变更居民委员会不适当的决定。
controller.enqueue(generateData()); // desiredSize: -999999