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class` with `UENUM()` in Unreal Engine?",[197,199,201,203],{"key":154,"text":198},"So the enum's underlying storage type changes from an integer to a string automatically.",{"key":157,"text":200},"So the compiler enforces that no two enumerators share a value.",{"key":160,"text":202},"So the enum's values become visible to the editor and Blueprint.",{"key":163,"text":204},"So the enum can be forward-declared without including its header.","UENUM() registers the enum with reflection, which is what lets the editor and Blueprint display its enumerators and lets the engine serialize a chosen value by its name rather than a raw integer.",{"id":207,"topic":9,"difficulty":208,"body":209,"options":210,"correct_key":160,"explanation":219},"01a01237-1a13-7305-947d-482dd41165be",3,"In Unreal's reflection system, why does declaring a reflected interface require two classes: one prefixed `U` and one prefixed `I`?",[211,213,215,217],{"key":154,"text":212},"The `U`-prefixed class is only used in 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