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The 4732 and its 473x compatriots became the last real IBM ATMs. After a hiatus，详情可参考51吃瓜
## Enable RPM Fusion repositories，更多细节参见搜狗输入法2026
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.
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