title: torch meshgrid warning: in an upcoming release, it will be required to pass the indexing argument
body: <p>I am trying to execute LIIF(<a href="https://github.com/yinboc/liif" rel="nofollow noreferrer">https://github.com/yinboc/liif</a>) and the following warning appears:</p>
  <pre><code>/usr/local/lib/python3.7/dist-packages/torch/functional.py:445: UserWarning: torch.meshgrid: in an upcoming release, it will be required to pass the indexing argument. (Triggered internally at  ../aten/src/ATen/native/TensorShape.cpp:2157.)
    return _VF.meshgrid(tensors, **kwargs)  # type: ignore[attr-defined]
  </code></pre>