How can I use getEdgeMetadata to retrieve attribute data from the EHorizonEdgeMetadata class during the navigation process?

[zhangfan321]

Currently, the program runs navigation successfully after downloading the code. However, I want to access attribute data from the EHorizonEdgeMetadata class (such as curvature, maximum speed, etc.) during the navigation process. How can I use the getEdgeMetadata method and where should I add code to achieve this?