I know I’m late to the party, but in case someone stumbles over this: Gemini Pro 2.5 can actualy “read” blueprint and convert it to c++ now. Just mark your blueprint code in Unreal (such as an event or a function), then copy and paste that into gemini and ask it to translate that to c++. It works quite good.
You can also copy and paste a schreenshot, but copy and past of the selected Blueprint “code” works even better.