Configuration file?

To make an inspirational generation, you first need to build a feature extractor:

python save_feature_extractor.py {vgg16, vgg19} $PATH_TO_THE_OUTPUT_FEATURE_EXTRACTOR --layers 3 4 5

Where do we get this $PATH_TO_THE_OUTPUT_FEATURE_EXTRACTOR from? I don't see one provided with the repo or instructions on high to acquire one..

I figured out how to build a feature extractor and now I'm stuck on loading checkpoints because I don't have a json config file -- is there an example of one?