The location of source code for torch.mean()
I'm trying to find the source code for torch.mean and am unable to find it in the pytorch github. It is under math operations but I can't find it at all.

I've looked everywhere and inspected most pages under pytorch/torch and am still unable to find it.

I even did ?? in a jupyter notebook but it just returned a useless docstring

Since operations components are written in C++, they are not callable with operations such as ?? or "__file__" or "getsourcefile" type of operations. 

The files appear to be here, written in C++:

https://github.com/pytorch/pytorch/blob/master/caffe2/operators/mean_op.cc
https://github.com/pytorch/pytorch/blob/master/caffe2/operators/mean_op.h
