How is triton_mm called

Hi community, I am currently debugging the interaction between inductor and triton.
During debug in vscode, I found this in the stack.
I program in C++ and just a newbee in python.
Somehow this magical string pops up and get generated, looks very much like a script but I’ve no idea what kind of script it is.
I want to figure out how this string is generated and executed. Any pointers or suggestions will be appreciated.

I think I figured it. case closed. FYI make sure read this important post.