public byte[] DownloadBytes(string address)
 {
     try {
         ApiRate.WaitToProceed();
         return(Exchange.GetWebClient().DownloadData(address));
     }
     catch { }
     return(null);
 }
 public string DownloadString(string address)
 {
     try {
         ApiRate.WaitToProceed();
         return(Exchange.GetWebClient().DownloadString(address));
     }
     catch { }
     return(string.Empty);
 }