public function getChildren()
    {
        $objs = $this->caldavBackend->getCalendarObjects($this->calendarInfo['id']);
        $children = [];
        foreach ($objs as $obj) {
            $obj['acl'] = $this->getChildACL();
            $children[] = new CalendarObject($this->caldavBackend, $this->calendarInfo, $obj);
        }

        return $children;
    }