How to Visualize the tracking?

[i-am-the-light]

Thanks a lot for your team's great contribution to Event-based tracking field!
But I wonder how can I visualize the results? In coesoet, the author talked about show_CAM.py, but i can't figure out how to use it?
from .show_CAM import getCAM getCAM(response, curr_image, self.idx)
Please give me a little tips, where can i get response, curr_image and self.idx?