I want to try fine-tuning the model on the goliath dataset.I'd like to ask if this dataset is open source at this link https://github.com/facebookresearch/goliath. I have appiled for the permission of this dataset. i want to know how to pass this dataset in the config of seg,and which type of dataset is being used.Because i found that there were many categories in the links provided by the meta staff to me.