static void Main(string[] args)
{
Base b = new Base();
Derived1 d1 = new Derived1();
Derived2 d2 = new Derived2();
Console.ReadKey(true);
}
private static void Main()
{
var test1 = new Derived1();
var test2 = new Derived2();
test1.DoSomethingWithTheSameTypeAsMe(test1);
test2.DoSomethingWithTheSameTypeAsMe(test2);
}