public void addOutputNameMapping(String onnxName, String vespaName, boolean overwrite) {
        Objects.requireNonNull(onnxName, "Onnx name cannot be null");
        Objects.requireNonNull(vespaName, "Vespa name cannot be null");
        // output name must be a valid identifier:
        var ref = Reference.fromIdentifier(vespaName);
        if (overwrite || ! outputMap.containsKey(onnxName)) {
            outputMap.put(onnxName, ref.toString());
        }
    }
A global ONNX model distributed using file distribution, similar to ranking constants.

@author lesters
config-model/src/main/java/com/yahoo/schema/OnnxModel.java