convertToArray example

        if ($this->httpCacheEnabled) {
            $controller->Response()->headers->set(
                CookieRemoveHandler::COOKIE_GROUP_COLLECTION_KEY,
                base64_encode(serialize($this->cookieHandler->getCookies()))
            );
        }

        $controller->View()->assign(
            'cookieGroups',
            $this->convertToArray($this->cookieHandler->getCookies())
        );
    }

    private function convertToArray(CookieGroupCollection $cookieGroupCollection): array
    {
        return json_decode(json_encode($cookieGroupCollection), true);
    }
}