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.
В России ответили на имитирующие высадку на Украине учения НАТО18:04
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（四）其他无故侵扰他人、扰乱社会秩序的寻衅滋事行为。，这一点在同城约会中也有详细论述
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class CombinedStorage {