code: public Observable<ServiceResponse<ImageTagCreateSummary>> createImageTagsWithServiceResponseAsync(UUID projectId, List<ImageTagCreateEntry> tags) {
          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.");
          }
          Validator.validate(tags);
          ImageTagCreateBatch batch = new ImageTagCreateBatch();
          batch.withTags(tags);
          return service.createImageTags(projectId, this.client.apiKey(), this.client.acceptLanguage(), batch, this.client.userAgent())
              .flatMap(new Func1<Response<ResponseBody>, Observable<ServiceResponse<ImageTagCreateSummary>>>() {
                  @Override
                  public Observable<ServiceResponse<ImageTagCreateSummary>> call(Response<ResponseBody> response) {
                      try {
                          ServiceResponse<ImageTagCreateSummary> clientResponse = createImageTagsDelegate(response);
                          return Observable.just(clientResponse);
                      } catch (Throwable t) {
                          return Observable.error(t);
                      }
                  }
              });
      }
docs: Associate a set of images with a set of tags.
  
  @param projectId The project id
  @param tags the List&lt;ImageTagCreateEntry&gt; value
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the ImageTagCreateSummary object