GraphAware\Reco4PHP\Common\ObjectSet::__construct PHP Method

    public final function __construct($className)
    {
        if (!class_exists($className)) {
            throw new \InvalidArgumentException(sprintf('The classname %s does not exist', $className));
        }
        $this->className = $className;
    }

 public function __construct()
 {
     return parent::__construct(NodeInterface::class);
 }