const toUpperCase = (chunks) = {
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// property lookup, so we do that here.
Instead of yielding one chunk per iteration, streams yield Uint8Array[] — arrays of chunks. This amortizes the async overhead across multiple chunks, reducing promise creation and microtask latency in hot paths.，这一点在Line官方版本下载中也有详细论述
bank's overall financial posture (critical considering how banks fail), and to