using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

        var templateObj = (new {colInt=default(int), colDateTime = default(DateTime)});

        WL(templateObj);

        WL(templateObj.colInt.GetType().Name);

        WL(templateObj.colDateTime.GetType().Name);

    }

    static void WL(object text) => Console.WriteLine(text);

}