public static void testStaticMethodInGenericClass()
    {
        var intId = Tuple1 <int> .identity(3);

        var strId = Tuple1 <string> .identity("3");
    }
 public static void testGenericStaticMethodInSimpleClass()
 {
     var intId = Tuple1.identity(3);
     var strId = Tuple1.identity("3");
 }