private static void TestMyEnum()
{
Console.WriteLine(MethodBase.GetCurrentMethod().Name);
MyEnum foo = default;
var resA1 = foo.GetAnnotation <MyEnum>();
var resA2 = MyEnum.Value1.GetAnnotation <MyEnum>();
var resA3 = foo.GetAnnotation <MyEnum>("Value2");
Console.WriteLine($"{nameof(resA1)}: {resA1}");
Console.WriteLine($"{nameof(resA2)}: {resA2}");
Console.WriteLine($"{nameof(resA3)}: {resA3}");
var resB1 = typeof(MyEnum).GetAnnotation();
var resB2 = foo.GetType().GetAnnotation();
var resB3 = typeof(MyEnum).GetAnnotation("Value3");
var resB4 = foo.GetType().GetAnnotation("Value1");
Console.WriteLine($"{nameof(resB1)}: {resB1}");
Console.WriteLine($"{nameof(resB2)}: {resB2}");
Console.WriteLine($"{nameof(resB3)}: {resB3}");
Console.WriteLine($"{nameof(resB4)}: {resB4}");
}
