GhostDoc如何获取属性的属性？

using System;
using System.Reflection;

namespace ExampleNamespace
{
    public class ExampleClass
    {
        [Obsolete("This property is deprecated. Use NewProperty instead.")]
        public string OldProperty { get; set; }

        public string NewProperty { get; set; }
    }

    public static class Program
    {
        public static void Main()
        {
            ExampleClass example = new ExampleClass();

            PropertyInfo oldPropertyInfo = typeof(ExampleClass).GetProperty("OldProperty");
            ObsoleteAttribute obsoleteAttribute = (ObsoleteAttribute)oldPropertyInfo.GetCustomAttribute(typeof(ObsoleteAttribute));

            if (obsoleteAttribute != null)
            {
                string message = obsoleteAttribute.Message;
                Console.WriteLine("Obsolete property message: " + message);
            }
        }
    }
}