this is not CASP13. It's one of 3 deepmind models from CASP 13 (and doesn't contain any feature-related code). And not even the most interesting imho (Variational LSTM/CNN-Autoencoder which generates structures from sequences). Just be aware that they are doing this for $$$s and PR - not for the good of the people like their website suggests - although they really try to put a smokescreen around this.