ONNX
----

1. intro_onnx.py
    Introduction to ONNX
    https://pytorch.org/tutorials/beginner/onnx/intro_onnx.html

2. export_simple_model_to_onnx_tutorial.py
    Exporting a PyTorch model to ONNX
    https://pytorch.org/tutorials/beginner/onnx/export_simple_model_to_onnx_tutorial.html

3. onnx_registry_tutorial.py
    Extending the ONNX exporter operator support
    https://pytorch.org/tutorials/beginner/onnx/onnx_registry_tutorial.html

4. export_control_flow_model_to_onnx_tutorial.py
    Export a model with control flow to ONNX
    https://pytorch.org/tutorials/beginner/onnx/export_control_flow_model_to_onnx_tutorial.html