If my dataset doesn't contain the state attribute, how can I still train my model? Attr.py doesn't seem to have any clues. My data doesn't have a 'states' attribute, do I need to add one and set it to blanks? Right now when I try to train the model, I get a KeyError in the data loader. Removing 'states' from the keys to use then yields an index out of range error in Attr.py.