static void Main(string[] args)
 {
     test1 test = new test1();
     test.MyProperty = 1;
     test.MyProperty2 = 1;
     test.MyProperty3 = "da";
     ExtensionMethod.IncrementExtensionMethod(test);
     Console.WriteLine(test.MyProperty);
     Console.WriteLine(test.MyProperty2);
 }
        static void Main(string[] args)
        {
            test1 test = new test1();

            test.MyProperty  = 1;
            test.MyProperty2 = 1;
            test.MyProperty3 = "da";
            ExtensionMethod.IncrementExtensionMethod(test);
            Console.WriteLine(test.MyProperty);
            Console.WriteLine(test.MyProperty2);
        }