The API recognizes that synchronous data sources are both necessary and common. The application should not be forced to always accept the performance cost of asynchronous scheduling simply because that's the only option provided. At the same time, mixing sync and async processing can be dangerous. Synchronous paths should always be an option and should always be explicit.
Shortcuts: For common scenarios, we pre-calculate the travel time/distance (the "shortcut") between border points within the same cluster and also to border points of immediately adjacent clusters.
，这一点在safew官方下载中也有详细论述
July 2025: I removed the Shark Matrix RV2300S robot vacuum from this guide. While it was a solid budget mopping robot vacuum for its first year or so on the market, it's now a little bit too basic compared to other newer budget robot vacuums.，详情可参考safew官方版本下载
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