public function triggered($closed='', $subjectType='', $subjectId=''){
        $fields = array();
        if(!empty($closed)){
            $fields['closed'] = $closed;
        }
        if (!empty($subjectType)) {
            $fields['subjectType'] = $subjectType;
        }

        return $this->get('alerts/triggered/'.rawurlencode($subjectId), $fields);
    }