How to access source code of specific function?

Hello, I’m using the function torch.conj on my code and I need to run it on a server which uses Pytorch 1.3.0, which does not implement this function (it does not depend on me to update the pytorch version used on the server).

The first option that comes to my mind in order to be able to use torch.conj on my code is to copy/paste the source code on my own model but I have not been capable to find it on the Github repository, could anyone help me to be able to use this function on pytorch 1.3.0?