toJsonLd method
Serialize SchemaDataFeedItem to JSON-LD
Implementation
@override
Map<String, dynamic> toJsonLd() => removeEmpty({
...super.toJsonLd(),
'@type': 'DataFeedItem',
'dateCreated': convertToJsonLd(dateCreated, [String]),
'dateDeleted': convertToJsonLd(dateDeleted, [String]),
'dateModified': convertToJsonLd(dateModified, [String]),
'item': convertToJsonLd(item, [SchemaThing]),
});