[TValueOrError](API\Runtime\Core\Math\TValueOrError)< [FString](API\Runtime\Core\Containers\FString), [FExpressionError](API\Runtime\Core\Misc\FExpressionError) > EvaluateString ( const TCHAR * InExpression, [UObject](API\Runtime\CoreUObject\UObject\UObject) * InTargetObj ) const