How can I train only the person class?

[alsrlwjs56]

I am using cocodataset,
I don't want to train any other classes besides humans.

How do I train only person classes with yolov9?
yolov9-c.yaml > Changed nc: 80 to nc: 1.
coco.yaml > names: Comment all except person
args --single-cls
Even if you change the above, train_batch still recognizes all classes as 0.

[TheMattBin]

maybe you can refer to #30 and check if it help