toJsonLd method

Implementation

@override
Map<String, dynamic> toJsonLd() => removeEmpty({
      ...super.toJsonLd(),
      '@type': 'ItemList',
      'aggregateElement': convertToJsonLd(aggregateElement, [SchemaThing]),
      'itemListElement': convertToJsonLd(
          itemListElement, [SchemaListItem, String, SchemaThing]),
      'itemListOrder':
          convertToJsonLd(itemListOrder, [SchemaItemListOrderType, String]),
      'numberOfItems': convertToJsonLd(numberOfItems, [int]),
    });