private function appendPortalInformation(Webspace $webspace, Context $context, JsonSerializationVisitor $visitor)
    {
        $portalInformation = $this->webspaceManager->getPortalInformationsByWebspaceKey(
            $this->environment,
            $webspace->getKey()
        );

        $portalInformation = $context->accept(array_values($portalInformation));
        $visitor->addData('portalInformation', $portalInformation);
    }