How to change multiple material parameter "Shading Model"

Hi, I have a problem.

There are so many materials, and I want to change all of these material’s “Shading Model” parameter,
“Default Lit” to “Unlit”.

What is the best way to solve it?

I really don’t want to change it one by one. :confused:

Thanks!

cap.JPG

c++, python, blueprint utilitiy nodes…it is not clear what you want to do.