.NET Client for getting Plex session from a local server

PlexClient.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net.Http;
using System.Net.Http.Headers;
using System.Net.Http.Json;
using System.Text;
using System.Threading.Tasks;
using System.Xml;
using System.Xml.Serialization;

namespace Plex
{
    // Doesn't support authentication. The client must be allowed to access the server unauthenticated.
    internal class PlexClient : IDisposable
    {
        private HttpClient _httpClient;
        
        public PlexClient(Uri uri)
        {
            // The handler isn't needed if your certificate is configured properly, which it probably isn't
            var handler = new HttpClientHandler();
            handler.ClientCertificateOptions = ClientCertificateOption.Manual;
            handler.ServerCertificateCustomValidationCallback =
                (httpRequestMessage, cert, cetChain, policyErrors) =>
                {
                    return true;
                };

            _httpClient = new HttpClient(handler)
            {
                BaseAddress = uri
            };

            // The XML parser ended up being a p.i.t.a. (I never use it) so I went for JSON instead of the XML default
            _httpClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
        }

        public async Task<dynamic[]> GetSessionsAsync() => await _httpClient.GetFromJsonAsync<PlexSessions>("status/sessions");

        public void Dispose() => _httpClient.Dispose();
    }
}

PlexModels.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Plex
{
    public class PlexSessions
    {
        public Mediacontainer MediaContainer { get; set; }
    }

    public class Mediacontainer
    {
        public int size { get; set; }
        public Metadata[] Metadata { get; set; }
    }

    public class Metadata
    {
        public int addedAt { get; set; }
        public string art { get; set; }
        public float audienceRating { get; set; }
        public string audienceRatingImage { get; set; }
        public int duration { get; set; }
        public string guid { get; set; }
        public string key { get; set; }
        public string librarySectionID { get; set; }
        public string librarySectionKey { get; set; }
        public string librarySectionTitle { get; set; }
        public string originallyAvailableAt { get; set; }
        public string ratingKey { get; set; }
        public string sessionKey { get; set; }
        public string studio { get; set; }
        public string summary { get; set; }
        public string thumb { get; set; }
        public string title { get; set; }
        public string type { get; set; }
        public int updatedAt { get; set; }
        public int viewOffset { get; set; }
        public int year { get; set; }
        public Medium[] Media { get; set; }
        public Genre[] Genre { get; set; }
        public Director[] Director { get; set; }
        public Writer[] Writer { get; set; }
        public Producer[] Producer { get; set; }
        public Country[] Country { get; set; }
        public Role[] Role { get; set; }
        public User User { get; set; }
        public Player Player { get; set; }
        public Session Session { get; set; }
        public Transcodesession TranscodeSession { get; set; }
        public string grandparentTitle { get; set; }
        public string grandparentArt { get; set; }
    }

    public class User
    {
        public string id { get; set; }
        public string thumb { get; set; }
        public string title { get; set; }
    }

    public class Player
    {
        public string address { get; set; }
        public string device { get; set; }
        public string machineIdentifier { get; set; }
        public string platform { get; set; }
        public string platformVersion { get; set; }
        public string product { get; set; }
        public string profile { get; set; }
        public string remotePublicAddress { get; set; }
        public string state { get; set; }
        public string title { get; set; }
        public string version { get; set; }
        public bool local { get; set; }
        public bool relayed { get; set; }
        public bool secure { get; set; }
        public int userID { get; set; }
    }

    public class Session
    {
        public string id { get; set; }
        public int bandwidth { get; set; }
        public string location { get; set; }
    }

    public class Transcodesession
    {
        public string key { get; set; }
        public bool throttled { get; set; }
        public bool complete { get; set; }
        public float progress { get; set; }
        public int size { get; set; }
        public float speed { get; set; }
        public bool error { get; set; }
        public int duration { get; set; }
        public int remaining { get; set; }
        public string context { get; set; }
        public string sourceVideoCodec { get; set; }
        public string sourceAudioCodec { get; set; }
        public string videoDecision { get; set; }
        public string audioDecision { get; set; }
        public string protocol { get; set; }
        public string container { get; set; }
        public string videoCodec { get; set; }
        public string audioCodec { get; set; }
        public int audioChannels { get; set; }
        public bool transcodeHwRequested { get; set; }
        public float timeStamp { get; set; }
        public float maxOffsetAvailable { get; set; }
        public float minOffsetAvailable { get; set; }
    }

    public class Medium
    {
        public string id { get; set; }
        public string videoProfile { get; set; }
        public int audioChannels { get; set; }
        public string audioCodec { get; set; }
        public int bitrate { get; set; }
        public string container { get; set; }
        public int duration { get; set; }
        public int height { get; set; }
        public string videoCodec { get; set; }
        public string videoFrameRate { get; set; }
        public string videoResolution { get; set; }
        public int width { get; set; }
        public bool selected { get; set; }
        public Part[] Part { get; set; }
    }

    public class Part
    {
        public string id { get; set; }
        public string videoProfile { get; set; }
        public int bitrate { get; set; }
        public string container { get; set; }
        public int duration { get; set; }
        public int height { get; set; }
        public int width { get; set; }
        public string decision { get; set; }
        public bool selected { get; set; }
        public Stream[] Stream { get; set; }
    }

    public class Stream
    {
        public int bitrate { get; set; }
        public string codec { get; set; }
        public string displayTitle { get; set; }
        public string extendedDisplayTitle { get; set; }
        public float frameRate { get; set; }
        public int height { get; set; }
        public string id { get; set; }
        public int streamType { get; set; }
        public int width { get; set; }
        public string decision { get; set; }
        public string location { get; set; }
        public string bitrateMode { get; set; }
        public int channels { get; set; }
        public bool selected { get; set; }
    }

    public class Genre
    {
        public string count { get; set; }
        public string filter { get; set; }
        public string id { get; set; }
        public string tag { get; set; }
    }

    public class Director
    {
        public string count { get; set; }
        public string filter { get; set; }
        public string id { get; set; }
        public string tag { get; set; }
    }

    public class Writer
    {
        public string count { get; set; }
        public string filter { get; set; }
        public string id { get; set; }
        public string tag { get; set; }
    }

    public class Producer
    {
        public string count { get; set; }
        public string filter { get; set; }
        public string id { get; set; }
        public string tag { get; set; }
    }

    public class Country
    {
        public string count { get; set; }
        public string filter { get; set; }
        public string id { get; set; }
        public string tag { get; set; }
    }

    public class Role
    {
        public string count { get; set; }
        public string filter { get; set; }
        public string id { get; set; }
        public string role { get; set; }
        public string tag { get; set; }
        public string thumb { get; set; }
    }
}