public function __construct(\GraphAware\Neo4j\OGM\EntityManager $em, $className, \GraphAware\Neo4j\OGM\Metadata\RelationshipMetadata $relationshipMetadata, $baseInstance)
{
parent::__construct($em, $className, $relationshipMetadata);
$this->relationshipEntityMetadata = $this->em->getRelationshipEntityMetadata($relationshipMetadata->getRelationshipEntityClass());
$this->baseInstance = $baseInstance;
}