def close(self) - None:
Offline models have ~4-5 minute audio length limits; split longer files or use streaming models
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习题链接：LeetCode 853. 车队
'TextGeometry': () = {
For implementers, this promise-heavy design constrains optimization opportunities. The spec mandates specific promise resolution ordering, making it difficult to batch operations or skip unnecessary async boundaries without risking subtle compliance failures. There are many hidden internal optimizations that implementers do make but these can be complicated and difficult to get right.