code: public function getContentTypes(Query $query = null): ResourceArray
      {
          /** @var ResourceArray $contentTypes */
          $contentTypes = $this->request(
              'GET',
              '/spaces/'.$this->spaceId.'/environments/'.$this->environmentId.'/content_types',
              ['query' => $query ? $query->getQueryData() : []]
          );
  
          return $contentTypes;
      }
docs: {@inheritdoc}