Result.cs

    public class Result<T, U>
    {
        private readonly T _left;
        private readonly U _right;
        private readonly bool _isLeft;
        private Result(T left, U right, bool isLeft)
        {
            _left = left;
            _right = right;
            _isLeft = isLeft;
        }

        public static Result<T, U> CreateLeft(T t)
        {
            return new Result<T, U>(t,default(U), true);
        }

        public static Result<T, U> CreateRight(U u)
        {
            return new Result<T, U>(default(T), u, false);
        }

        public void Bind(Action leftAction, Action rightAction)
        {
            if (_isLeft)
            {
                leftAction();
            }
            else
            {
                rightAction();
            }
        }

        public V Map<V>(Func<T, V> leftAction, Func<U, V> rightAction)
        {
            if (_isLeft)
            {
                return leftAction(_left);
            }
            return rightAction(_right);
        }

        public void Bind(Action<T> leftAction, Action<U> rightAction)
        {
            if (_isLeft)
            {
                leftAction(_left);
            }
            else
            {
                rightAction(_right);
            }
        }
    }