@andreaTP I'm not sure this is the right thing to do here. By the time this function is called, codeclass instances have been converted to interfaces and methods to functions.

@andrueastman I was a little surprised too, but it seems like that this phase of the refiner happens before the transformation you mention.
The it test that I added demonstrates the fix is effective, but I'm not sure it's the most correct approach and/or if I'm missing cases (e.g. should we include method parameters in addition to return types?)

@andreaTP You're right, I've confirmed that the interface generation for the request builders happens after the codeEnumObject creation. So modifying the code class object should be right thing to do here.
I've added @koros as a reviewer as he introduced the codeEnumObject to comment on whether the usings these should be added for method parameters as well.

Otherwise, this looks good from my end.

to comment on whether the usings these should be added for method parameters as well.

🙏 yes please, and for any other case you can think about.