这个定义说明当配置文件中设置模型名字为pointpillar时，该模型的代码位于pcdet/modeld/detectors中如下图所示：“Rosalie murmured: ‘I suppose we might likewise go on to Egypt. It doesn’t make any change.’The Woolleys invited her again the subsequent time, and it absolutely was then that she encountered her 2nd h