code: public Observable<Void> scanForUpdatesAsync(String deviceName, String resourceGroupName) {
          return scanForUpdatesWithServiceResponseAsync(deviceName, resourceGroupName).map(new Func1<ServiceResponse<Void>, Void>() {
              @Override
              public Void call(ServiceResponse<Void> response) {
                  return response.body();
              }
          });
      }
docs: Scans for updates on a data box edge/gateway device.
  
  @param deviceName The device name.
  @param resourceGroupName The resource group name.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable for the request