public Set<String> missingOnnxOps() {
        Set<String> copy = new HashSet<>(onnxOpDescriptors.keySet());
        copy.removeAll(onnxNames.keySet());
        return copy;
    }
public Set < String > missingOnnxOps ( ) { Set < String > copy = new HashSet < > ( onnxOpDescriptors . keySet ( ) ) ; copy . removeAll ( onnxNames . keySet ( ) ) ; return copy ; }
*
Returns the missing onnx ops
@return