public static Stream DownloadRDPFile(this IServiceManagement proxy,
                                      string subscriptionID,
                                      string serviceName,
                                      string deploymentName,
                                      string roleInstanceName)
 {
     return(proxy.EndDownloadRDPFile(
                proxy.BeginDownloadRDPFile(
                    subscriptionID,
                    serviceName,
                    deploymentName,
                    roleInstanceName,
                    null,
                    null)));
 }