kwargs["1"] = "hi zev"
先理解原理：看动图 + 手动模拟小数组
。im钱包官方下载是该领域的重要参考
Space exploration
We wanted a scenario where, say, 5 well-placed border points could efficiently represent an area with 5,000 internal points and 10,000 road edges. This would reduce those 10,000 edges to just 5*4/2 = 10 shortcuts for routing through that cluster at a high level – an incredible 1:1000 point ratio and a 30x reduction in edges to consider for the high-level path!