code: public Observable<ServiceResponse<List<Image>>> getUntaggedImagesWithServiceResponseAsync(UUID projectId, GetUntaggedImagesOptionalParameter getUntaggedImagesOptionalParameter) {
          if (projectId == null) {
              throw new IllegalArgumentException("Parameter projectId is required and cannot be null.");
          }
          if (this.client.apiKey() == null) {
              throw new IllegalArgumentException("Parameter this.client.apiKey() is required and cannot be null.");
          }
          final UUID iterationId = getUntaggedImagesOptionalParameter != null ? getUntaggedImagesOptionalParameter.iterationId() : null;
          final String orderBy = getUntaggedImagesOptionalParameter != null ? getUntaggedImagesOptionalParameter.orderBy() : null;
          final Integer take = getUntaggedImagesOptionalParameter != null ? getUntaggedImagesOptionalParameter.take() : null;
          final Integer skip = getUntaggedImagesOptionalParameter != null ? getUntaggedImagesOptionalParameter.skip() : null;
  
          return getUntaggedImagesWithServiceResponseAsync(projectId, iterationId, orderBy, take, skip);
      }
docs: Get untagged images for a given project iteration.
  This API supports batching and range selection. By default it will only return first 50 images matching images.
  Use the {take} and {skip} parameters to control how many images to return in a given batch.
  
  @param projectId The project id
  @param getUntaggedImagesOptionalParameter the object representing the optional parameters to be set before calling this API
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the List&lt;Image&gt; object