code: private function getLanguageIdentity(array $entry)
      {
          $property = array_filter($entry['properties'], function (array $property) {
              return $property['typeId'] === 6;
          });
  
          if (!empty($property)) {
              $property = array_shift($property);
  
              return $this->identityService->findOneBy([
                  'adapterIdentifier' => (string) $property['value'],
                  'adapterName' => PlentymarketsAdapter::NAME,
                  'objectType' => Language::TYPE,
              ]);
          }
  
          return null;
      }
docs: @param array $entry
  
  @return null|Identity