public function getDomainSummaryStatistics($options = array())
    {
        list($config, $startTime, $endTime) = $this->parseOptions(
            $options,
            'config',
            'startTime',
            'endTime'
        );

        if (empty($startTime)) {
            throw new BceClientException("The query parameter startTime "
                . "should NOT be null or empty string");
        }
        if (empty($endTime)) {
            throw new BceClientException("The query parameter endTime "
                . "should NOT be null or empty string");
        }

        $params = array(
            'startTime' => $startTime,
            'endTime' => $endTime,
        );

        return $this->sendRequest(
            HttpMethod::GET,
            array(
                'config' => $config,
                'params' => $params,
            ),
            "/statistics/domain/summary"
        );
    }