code: public Observable<List<Image>> getImagesByIdsAsync(UUID projectId, GetImagesByIdsOptionalParameter getImagesByIdsOptionalParameter) {
          return getImagesByIdsWithServiceResponseAsync(projectId, getImagesByIdsOptionalParameter).map(new Func1<ServiceResponse<List<Image>>, List<Image>>() {
              @Override
              public List<Image> call(ServiceResponse<List<Image>> response) {
                  return response.body();
              }
          });
      }
docs: Get images by id for a given project iteration.
  This API will return a set of Images for the specified tags and optionally iteration. If no iteration is specified the
  current workspace is used.
  
  @param projectId The project id
  @param getImagesByIdsOptionalParameter 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