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.
法院最终将女儿判给代孕母亲小翟抚养，由蔡某支付部分抚养费，同时认定双方签订的“代孕协议”不具有法律效力。，更多细节参见搜狗输入法2026
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