code: public GetDomainSummaryStatisticsResponse getDomainSummaryStatistics(String startTime, String endTime) {
          GetDomainSummaryStatisticsRequest request = new GetDomainSummaryStatisticsRequest();
          request.withStartTime(startTime).withEndTime(endTime);
          return getDomainSummaryStatistics(request);
      }
docs: get all domains' summary statistics in the live stream service.
  
  @param startTime start time
  @param endTime start time
  @return the response