Confusion about VPN, Lift splat, and IPM Net

[carry-all-coder]

Hello, I am really amazed by your work, HDMapNet shows great performance. But apart from HDMapNet, the other networks in your code including VPN, Lift splat and IPMNet all have bugs in it and are unable to run, which really harm the credibility of this work and is really regretful. I do believe that maybe you have others version to successfully run VPN, Lift splat and IPMNet but has not yet update them to your HDMapNet pipeline, could you please provide the correct code of them? Thank you very much!