How to load a new dataset like OpenLane?

[ppbangKGT]

Good afternoon! Thanks for your nice work!
It seems that there are only two datasets to choose. How can I train model on other existing dataset like OpenLane?
Cause CULane and Tusimple loading both use class BaseDataset and the code is compact, I find it hard to add other datasets' loading into the code.
Thanks for your time!