code: public function handle(QueryInterface $query)
      {
          $identity = $this->identityService->findOneBy([
              'objectIdentifier' => $query->getObjectIdentifier(),
              'objectType' => Manufacturer::TYPE,
              'adapterName' => PlentymarketsAdapter::NAME,
          ]);
  
          if (null === $identity) {
              return [];
          }
  
          $element = $this->client->request('GET', 'items/manufacturers/' . $identity->getAdapterIdentifier());
  
          $result = $this->manufacturerResponseParser->parse($element);
  
          return array_filter($result);
      }
docs: {@inheritdoc}
  
  @var FetchTransferObjectQuery $query