PyTorch block expansion

[hwasiti]

I have this custom pytorch model (saved as .pth) and wonder whether it is possible to expand blocks that has a plus sign '+'. Clicking over it does not seem to do anything.

Here is .pth model file:
https://drive.google.com/open?id=1aK5p0sUbxjn1bmIlb2JZqgGZRsDqTfNT

Here is a picture:

[lutzroeder]

The subgraphs aren't stored in .pth files directly. Some modules include Python code which could be parsed similar to #281. Visualization would require #68. PyTorch serialization formats are a moving target and saving to ONNX is more reliable.