Import a model (.pth file) that is not built-in

[lewisbolaton]

Is it possible to import models that are not built-in? I want to use SOLOv2 instead of the default Mask R-CNN and train it on my own custom dataset. As far as I could find, AdelaiDet provides a .pth file for that specific model. However, the documentation doesn't tell anything about using the .pth files of existing models.