title: Darknet model to onnx
body: <p>I am currently working with Darknet on Yolov4, with 1 class.</p>
  <p>I need to export those weights to onnx format, for tensorRT inference.
  I've tried multiple technics, using <a href="https://github.com/ultralytics/yolov3" rel="noreferrer">ultralytics</a> to convert or <a href="https://github.com/hunglc007/tensorflow-yolov4-tflite" rel="noreferrer">going from tensorflow to onnx</a>. But none seems to work. Is there a direct way to do it?</p>