toJsonLd method
Serialize SchemaGeoCircle to JSON-LD
Implementation
@override
Map<String, dynamic> toJsonLd() => removeEmpty({
...super.toJsonLd(),
'@type': 'GeoCircle',
'geoMidpoint': convertToJsonLd(geoMidpoint, [SchemaGeoCoordinates]),
'geoRadius': convertToJsonLd(geoRadius, [SchemaDistance, String, num]),
});