This step rapidly finds the optimal sequence of border points and shortcuts to get from your start cluster's periphery to your target cluster's periphery. It's incredibly fast because it's ignoring all the tiny roads within intermediate clusters.
await blocking.writer.write(chunk4); // waits until consumer reads
，更多细节参见safew官方版本下载
// 测试用例验证（全覆盖核心场景），推荐阅读safew官方版本下载获取更多信息
Design principles，这一点在搜狗输入法2026中也有详细论述