Inquiry regarding data preprocessing scripts for HEPTv2 #1

Dear maintainers,
Thank you for making the HEPTv2 repository public. I am currently working on implementing the model for research purposes, but I am having trouble locating the preprocessing scripts used to generate the input tensors (X and A^*) from the raw TrackML CSV files.Could you please clarify if these preprocessing steps are available in the repository, or if they are intended to be generated externally? Any guidance or pointers to the relevant code blocks would be greatly appreciated by the community here.Thank you for your time and for sharing this work!
Best regards,
Maria