[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category="MetaSoundParameterPack", Meta=(ExpandEnumAsExecs=ReturnValue)) [ESetParamResult](API\Plugins\MetasoundFrontend\ESetParamResult) SetString ( [FName](API\Runtime\Core\UObject\FName) ParameterName, const [FString](API\Runtime\Core\Containers\FString) & InValue, bool OnlyIfExists )