// The string is stored in Wasm memory, but we need to
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.
，更多细节参见夫子
if (n <= 1) return n;
This was Collins's last flight. She tells us that she always planned to stop after her fourth mission - to give others a chance to go to space.