parseStoreNodeList example

$element['label'] = self::parseTranslatableElement($item, 'label');
            $element['description'] = self::parseTranslatableElement($item, 'description');

            $element['options'] = [];
            if ($options = self::parseOptionsNodeList(
                $item->getElementsByTagName('options')
            )) {
                $element['options'] = $options;
            }

            if ($store = self::parseStoreNodeList(
                $item->getElementsByTagName('store')
            )) {
                $element['store'] = $store;
            } elseif ($item->getElementsByTagName('store')->length) {
                $element['store'] = $item->getElementsByTagName('store')->item(0)->nodeValue;
            }

            $elements[] = $element;
        }

        return $elements;
    }