JsonSubtypesConverterBuilder doesn't work on dto generated by open api about jsonsubtypes HOT 2 CLOSED

    [DataContract]
    [JsonConverter(typeof(JsonSubtypes), "shapeType")]
    [JsonSubtypes.KnownSubType(typeof(Shape2DReactangle), "2d-rectangle")]
    [JsonSubtypes.KnownSubType(typeof(Shape2DPolygon), "2d-polygon")]
    public partial class Shape :  IEquatable<Shape>, IValidatableObject
    {...

[JsonConverter(typeof(JsonSubtypes), "shapeType")]

using System;
using JsonSubTypes;
using Newtonsoft.Json;
					
public class Program
{
    //[JsonConverter(typeof(JsonSubtypes), "shapeType")]
    //[JsonSubtypes.KnownSubType(typeof(Shape2DReactangle), "2d-rectangle")]
    //[JsonSubtypes.KnownSubType(typeof(Shape2DPolygon), "2d-polygon")]
    public class Shape
    {
		string shapeId { get; set; }
	}
	
 
    public class Shape2DPolygon : Shape
    {
		
	}	

    public class Shape2DReactangle : Shape
    {
		public int area { get; set; }
	}
	
	
	public static void Main()
	{		
		
		var stg = new JsonSerializerSettings();
		stg.Converters.Add(JsonSubTypes.JsonSubtypesConverterBuilder
									.Of(typeof(Shape), "shapeType")
									.RegisterSubtype(typeof(Shape2DReactangle), "2d-rectangle")
									.RegisterSubtype(typeof(Shape2DPolygon), "2d-polygon")
									.SerializeDiscriminatorProperty() // ask to serialize the type property
									.Build());
		
		var serial = JsonConvert.SerializeObject(new Shape2DReactangle() {area = 5}, stg);
		Console.WriteLine(serial);	
		
	}
}