Crash if the token is disabled by Twitter's setting.

[mystasly48]

CoreTweet.TwitterException: Invalid or expired token. ---> System.Net.WebException: リモート サーバーがエラーを返しました: (401) 許可されていません
   場所 System.Net.HttpWebRequest.GetResponse()
   場所 CoreTweet.Request.HttpPost(Uri url, String contentType, Byte[] content, String authorizationHeader, ConnectionOptions options)
   場所 CoreTweet.Request.HttpPost(Uri url, IEnumerable`1 prm, String authorizationHeader, ConnectionOptions options)
   場所 CoreTweet.Core.TokensBase.SendRequestImpl(MethodType type, String url, IEnumerable`1 parameters, ConnectionOptions options)
   --- 内部例外スタック トレースの終わり ---
   場所 CoreTweet.Core.TokensBase.SendRequestImpl(MethodType type, String url, IEnumerable`1 parameters, ConnectionOptions options)
   場所 CoreTweet.Core.TokensBase.AccessApiImpl[T](MethodType type, String url, IEnumerable`1 parameters, String jsonPath)
   場所 CoreTweet.Rest.Statuses.Update(String status, Nullable`1 in_reply_to_status_id, Nullable`1 possibly_sensitive, Nullable`1 lat, Nullable`1 long, String place_id, Nullable`1 display_coordinates, Nullable`1 trim_user, IEnumerable`1 media_ids, String attachment_url, Nullable`1 auto_populate_reply_metadata, IEnumerable`1 exclude_reply_user_ids, Nullable`1 include_ext_alt_text, Nullable`1 tweet_mode, Nullable`1 enable_dm_commands, Nullable`1 fail_dm_commands)
   場所 Mystter_SendTweet.Form1.SendTweet(String msg)
   場所 Mystter_SendTweet.Form1.sendBtn_Click(Object sender, EventArgs e)
   場所 System.Windows.Forms.Control.OnClick(EventArgs e)
   場所 System.Windows.Forms.Button.OnClick(EventArgs e)
   場所 System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)
   場所 System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
   場所 System.Windows.Forms.Control.WndProc(Message& m)
   場所 System.Windows.Forms.ButtonBase.WndProc(Message& m)
   場所 System.Windows.Forms.Button.WndProc(Message& m)
   場所 System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
   場所 System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   場所 System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

[mystasly48]

Is there any API that can know if the token is valid.
I thought just remove the user's auth settings if the exception was thrown, but the user will able to tweet again if the token is enabled.