Десериализовать ответ VK API

using Microsoft.Extensions.Logging;
using System.Diagnostics.CodeAnalysis;
using System.Net.Http;
using System.Text.Json;
 
 
internal class Program
{
    static HttpClient? client;
    private static string access_token = "....";
    private static string version = "5.199";
 
   static async Task Main()
    {
 
        client = new HttpClient();
 
        using ILoggerFactory factory = LoggerFactory.Create(builder => builder.AddConsole());
        var logger = factory.CreateLogger<Program>();
 
        string uri = $"https://api.vk.com/method/messages.getHistory?peer_id=841397624&v={version}&access_token={access_token}";
 
        HttpResponseMessage response = await client.GetAsync(uri);
        var message = await response.Content.ReadAsStringAsync();
        Console.WriteLine(message);
 
        Rootobject rootobject= new Rootobject();
 
        try
        {
 
            Rootobject? myDeserializedClass = JsonSerializer.Deserialize<Rootobject>(message);
            
            string? outString = myDeserializedClass?.ToString();
            Console.WriteLine(outString);
        }
        catch (Exception ex)
        {
            Console.WriteLine(ex.ToString());
        }
 
        if (message != null)
        {
            logger.LogInformation("Ok");
        }
 
    }
}
 
 
public class Rootobject
{
    public Response? vkresponse { get; set; }
}
 
public class Response
{
    public int count { get; set; }
    public Item[]? items { get; set; }
}
 
public class Item
{
    public int date { get; set; }
    public int from_id { get; set; }
    public int id { get; set; }
    public int _out { get; set; }
    public int version { get; set; }
    public object[]? attachments { get; set; }
    public int conversation_message_id { get; set; }
    public object[]? fwd_messages { get; set; }
    public bool important { get; set; }
    public bool is_hidden { get; set; }
    public int peer_id { get; set; }
    public int random_id { get; set; }
    public string? text { get; set; }
}

public class Rootobject
{
    public Response? vkresponse { get; set; }
}

public class Rootobject
{
    public Response? response { get; set; }
}

public class Rootobject
{
    [JsonPropertyName("response")]
    public Response? vkresponse { get; set; }
}