Guide me to use Frida to hook functions and change them in a unity game -- 2

I have frida setup and I have been able to see when certain args have been called but I'm struggling to put the last piece of the puzzle together to write scripts to change behaviour, I also have frida-il2cpp-bridge installed but I'm unable to configure index.ts to be able to do the same thing, I'm looking for somebody who can help me with the above process so I can make changes inside the game, js script or whatever is best.

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