`Result<T>` vs multi closure

result.swift

enum Result<T, Error> {
    case success(T)
    case failure(Error)
}

func resultCallback(completion: @escaping((Result<Int, Error>) -> Void)) {
    
}

func multiCompletionCallback(success: ((Int) -> Void)?,
                             error: ((Error) -> Void)?) {
    
}

resultCallback { result in
    switch result {
    case let .success(n):
        print(n)
    case let .failure(error):
        print(error)
    }
}

multiCompletionCallback(success: { n in
    print(n)
}) { e in
    print(e)
}