Cardinality On SK-ResNext

[AlGhani26]

Hai, I want to ask, how do I change the cardinality value on U-Net SK-ResNext? For example, I want to change it to 16, the default is 32.

[rwightman]

@AlGhani26 the kwarg merging was never updated in those models, once #2471 is merged will work so can override by passing cardinality=x when calling create_model or the model entrypoint fn... but it will not work with any pretrained weights (you have to train your own from scratch), and if being used as a u-net, you'll have to pass in that cardinality value wherever the timm factory is being called