arr.push(p.val); // 存储节点值而非节点本身，简化后续操作
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Unconsumed bodies: Pull semantics mean nothing happens until you iterate. No hidden resource retention. If you don't consume a stream, there's no background machinery holding connections open.
How to watch: The Traitors Season 4 finale premieres Feb. 26 at 9 p.m. ET on Peacock.
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