code: public function setSuccessLogLifetime($time)
      {
          if (!is_numeric($time)) {
              throw new \InvalidArgumentException('`successLogLifetime` expects integer value!');
          }
  
          $this->options['successLogLifetime'] = (int) $time;
          return $this;
      }
docs: Set time in minutes for how long to keep records about successfully
  completed CRON jobs.
  
  @param integer $time
  @return CronService