namespace System.Net
{
    [Obsolete("WebRequest, HttpWebRequest, ServicePoint, and WebClient are obsolete. Use HttpClient instead. Settings on ServicePointManager no longer affect SslStream or HttpClient.", DiagnosticId = "SYSLIB0014", UrlFormat = "https://aka.ms/dotnet-warnings/{0}")]
    public class ServicePointManager
    {
        public static int DnsRefreshTimeout { get; set; }
    }
}