/**     * 获取老师最初来到教室工夫     * @param $courseId     */    public function getTeacherLastEndTime($courseId)    {                $rst = $response->getBody()->getContents();        $replayRes = json_decode($rst, true);        Log::info("get teacher last end time | return info " . $rst . " | course id is {$courseId}");        if (! $replayRes || ! isset($replayRes['error_code']) || $replayRes['error_code'] != Code::SUCCESS) {            Log::error('getTeacherLastEndTime Fail ', ['trace_id']);        }        return $replayRes;    }