promClient, err := api.NewClient(api.Config{Address: address})
	if err != nil {
		return nil, fmt.Errorf("could not build prometheus client: %v", err)
	}
	return promv1.NewAPI(promClient), nil
}

func metrics(promAPI promv1.API, workload string, duration time.Duration) (workloadMetrics, error) {
	parts := strings.Split(workload, ".")
	wname := parts[0]
	wns := ""
	if len(parts) > 1 {

   * Returns a stream over the values in this array, in order.
   *
   * @since NEXT (but since 22.0 in the JRE flavor)
   */
  @SuppressWarnings("Java7ApiChecker")
  // If users use this when they shouldn't, we hope that NewApi will catch subsequent stream calls
  @IgnoreJRERequirement
  public IntStream stream() {
    return Arrays.stream(array, start, end);
  }

   * Returns a stream over the values in this array, in order.
   *
   * @since NEXT (but since 22.0 in the JRE flavor)
   */
  @SuppressWarnings("Java7ApiChecker")
  // If users use this when they shouldn't, we hope that NewApi will catch subsequent stream calls
  @IgnoreJRERequirement
  public DoubleStream stream() {
    return Arrays.stream(array, start, end);
  }

   *     by startup time.
   * @since NEXT (but since 31.0 in the JRE flavor)
   */
  @J2ObjCIncompatible
  @SuppressWarnings("Java7ApiChecker")
  // If users use this when they shouldn't, we hope that NewApi will catch subsequent Duration calls
  @IgnoreJRERequirement
  public ImmutableMap<Service, Duration> startupDurations() {
    return ImmutableMap.copyOf(

      return array[start + index];
    }

    @Override
    @SuppressWarnings("Java7ApiChecker")
    /*
     * This is an override that is not directly visible to callers, so NewApi will catch calls to
     * Collection.spliterator() where necessary.
     */
    @IgnoreJRERequirement
    public Spliterator.OfInt spliterator() {
      return Spliterators.spliterator(array, start, end, 0);
    }

      return array[start + index];
    }

    @Override
    @SuppressWarnings("Java7ApiChecker")
    /*
     * This is an override that is not directly visible to callers, so NewApi will catch calls to
     * Collection.spliterator() where necessary.
     */
    @IgnoreJRERequirement
    public Spliterator.OfDouble spliterator() {
      return Spliterators.spliterator(array, start, end, 0);

      return array[start + index];
    }

    @Override
    @SuppressWarnings("Java7ApiChecker")
    /*
     * This is an override that is not directly visible to callers, so NewApi will catch calls to
     * Collection.spliterator() where necessary.
     */
    @IgnoreJRERequirement
    public Spliterator.OfLong spliterator() {
      return Spliterators.spliterator(array, start, end, 0);
    }

          @SuppressWarnings({
            "FilesLinesLeak", // the user needs to close it in this case
            /*
             * If users use this when they shouldn't, we hope that NewApi will catch subsequent
             * Stream calls.
             *
             * Anyway, this is just an override that is no more dangerous than the supermethod.
             */
            "Java7ApiChecker",