DataStructuresCSharp/C#/Datastructures/Generic/UndirectedNode.cs

using System.Collections.Generic;

namespace C_.Datastructures.Generic
{
    abstract internal class UndirectedNode<T, NodeType>
    {//Generic Node type that every other type inherits from
        public T? Value { get; set; } = default;
        public NodeType? Next { get; set; } = default;
    }
}