/**
  * Returns the serialization metadata for given entity
  *
  * @param object $entity
  *
  * @return \WellCommerce\Bundle\ApiBundle\Metadata\SerializationClassMetadataInterface
  */
 protected function getSerializationMetadata($entity)
 {
     $className = $this->getRealClass($entity);
     return $this->serializationMetadataCollection->get($className);
 }