public EcampusClient(IAuth auth)
 {
     if (auth == null)
     {
         throw new ArgumentNullException();
     }
     authUser = auth;
     client   = ClientGeneration.GetClient();
     parser   = new HtmlParser();
 }
 public EcampusClient()
 {
     parser = new HtmlParser();
     client = ClientGeneration.GetClient();
 }