public function jsonSerialize() {
        return [
            'errorcode' => $this->errorcode,
            'errorname' => $this->errorname,
            'debug' => is_callable($this->debugmsg) ? '' : $this->debugmsg,
            'message' => is_callable($this->message) ? '' : $this->message,
            'adminmsg' => is_callable($this->adminmsg) ? '' : $this->adminmsg,
            'apiresult' => $this->apiresult,
        ];
    }