// values
			bugLogIf(GlobalContext, err)
			continue
		}

		h := dtoMetric.GetHistogram()
		for _, b := range h.Bucket {
			labels := make(map[string]string)
			for _, lp := range dtoMetric.GetLabel() {
				if *lp.Name == "api" && toLowerAPILabels {
					labels[*lp.Name] = strings.ToLower(*lp.Value)
				} else {
					labels[*lp.Name] = *lp.Value
				}
			}

  /**
   * A listener that is invoked when an entry is removed due to expiration or garbage collection of
   * soft/weak entries.
   */
  final RemovalListener<K, V> removalListener;

  /** Measures time in a testable way. */
  final Ticker ticker;

  /** Factory used to create new entries. */
  final EntryFactory entryFactory;

  /**

  /**
   * A listener that is invoked when an entry is removed due to expiration or garbage collection of
   * soft/weak entries.
   */
  final RemovalListener<K, V> removalListener;

  /** Measures time in a testable way. */
  final Ticker ticker;

  /** Factory used to create new entries. */
  final EntryFactory entryFactory;

  /**