I need to know how to generate them, because I wish to model serve, and I see currently 2 options/choices for this purpose. It appears in the first example it states it needs the index_to_name.json file and in the second the model definition file. However, in the case of the second, it also requires a signature.json file input as well. This is all to convert an ONNX model from the model zoo to .MAR format for the model server.