Googlenet network's place

I see, yes - googlenet.py is used to during training of the network when --arch=googlenet is specified.

And I saw some changing googlenet’s pth file method which can set network architecture and property.

Googlenet.py and googlenet-1378be20.pth can change googlenet architecture. This web(https://www.twblogs.net/a/5b8d787b2b717718833e3c25?lang=zh-cn) can change network architecture. But I don’t know how to do it step by step.