Is there any finetune scripts to support get better results on mipnerf 360 Datasets?

Thanks for your contribution! Now I want to test this method on sparse urban scene. I used the pretrained mipnerf360 checkpoint because it is suited for the unbounded scene. Now I want to finetune on my own urban datasets. Could you provide the finetune scripts which is not in this repro. Any response will be greatly appreciated.
