public function toNode(DOMDocument $document = null)
    {
        if (null === $document) {
            $document = new DOMDocument();
        }

        $node = $document->createElement('HazMatPackageInformation');

        if ($this->isAllPackedInOneIndicator()) {
            $node->appendChild($document->createElement('AllPackedInOneIndicator'));
        }
        if ($this->isOverPackedIndicator()) {
            $node->appendChild($document->createElement('OverPackedIndicator'));
        }
        if ($this->getQValue() !== null) {
            $node->appendChild($document->createElement('QValue', $this->getQValue()));
        }

        return $node;
    }
public function toNode(DOMDocument $document = null)
    {
        if (null === $document) {
            $document = new DOMDocument();
        }

        $node = $document->createElement('HazMatPackageInformation');

        if ($this->isAllPackedInOneIndicator()) {
            $node->appendChild($document->createElement('AllPackedInOneIndicator'));
        }
        if ($this->isOverPackedIndicator()) {
            $node->appendChild($document->createElement('OverPackedIndicator'));
        }
        if ($this->getQValue() !== null) {
            $node->appendChild($document->createElement('QValue', $this->getQValue()));
        }

        return $node;
    }
@param null|DOMDocument $document

@return DOMElement