code: public ServiceFuture<OperationStatusResponseInner> getOperationStatusAsync(String userName, String operationUrl, final ServiceCallback<OperationStatusResponseInner> serviceCallback) {
          return ServiceFuture.fromResponse(getOperationStatusWithServiceResponseAsync(userName, operationUrl), serviceCallback);
      }
docs: Gets the status of long running operation.
  
  @param userName The name of the user.
  @param operationUrl The operation url of long running operation
  @param serviceCallback the async ServiceCallback to handle successful and failed responses.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the {@link ServiceFuture} object