example-stack-53682804.cs

class Program
{
    static void Main(string[] args)
    {
        var a = new InstanceResponse("");
    }

    public class Response<T> where T : class
    {
        public bool Result;
        public T Data;
    }
    public sealed class Instance
    {
        public long Rank { get; set; }
        public int ID_Member { get; set; }
    }

    public sealed class InstanceResponse : Response<IList<Instance>>
    {
        public InstanceResponse(string JsonString)
        {
            Console.WriteLine("Hello World!");
        }
    }
}