docs: public GetMetricStatisticsRequest withStatistics(Statistic... statistics) {
          com.amazonaws.internal.SdkInternalList<String> statisticsCopy = new com.amazonaws.internal.SdkInternalList<String>(statistics.length);
          for (Statistic value : statistics) {
              statisticsCopy.add(value.toString());
          }
          if (getStatistics() == null) {
              setStatistics(statisticsCopy);
          } else {
              getStatistics().addAll(statisticsCopy);
          }
          return this;
      }