using System.Text.Json;

namespace a;
class Program
{
    static void Main(string[] args)
    {
        var person = new Person
        {
            Id = 1,
            Name = "Henry"
        };
        var person2 = person.DeepClone();
        person2.Name = "Stark";

        Console.WriteLine(person.Name);
        Console.WriteLine(person2.Name);
    }

}

public class Person
{
    public int Id { get; set; }
    public string Name { get; set; } = string.Empty;
}

public static class ObjectExtensions
{
    public static T DeepClone<T>(this T obj)
    {
        var serialized = JsonSerializer.Serialize(obj);
        return JsonSerializer.Deserialize<T>(serialized)!;
    }
}