> : to define or originate (something, such as a mathematical or linguistic set or structure) by the application of one or more rules or operations[0]
Creating something from the application of rules or operations sounds just like what a compiler does. Whereas to process something is:
> : treated or made by a special process especially when involving synthesis or artificial modification
So if anything it sounds like you're asking if processed code is copyrightable. But this is just quibbling over pedantry. My original point stands. AI is just following a predefined set of rules to transform your request into code. It's a program, just like a compiler is a program. So it would be really hard to say that AI generated code is non copyrightable, but compiler/transpiler/fuzzy generated code is copyrightable.
If you have a looser definition, I don't see why you wouldn't be able to copyright code that you generated by using Unreal Engine's blueprint to C++ utility, or any other tool that assists in transpiling code. 99% of the web consists of transpiled JS these days.