How exactly can i change the loss function in the current yolov5, from CIOU to lets say DIOU, SIOU and so on?

[lucysumi]

So I wanted to experiment with my dataset with different loss functions in Yolov5. The loss function used here is CIOU https://github.com/ultralytics/yolov5/blob/master/utils/loss.py
As I can see, there are modules for BCE, FocalLoss, QFocal, etc in this code, what should I do if I want to use, for instance, FocalLoss or incorporate SIOU and so on, how can I achieve this.

Any help would be appreciated. Thanks alot!