toJson method
Converts this object to something serializable in JSON.
Implementation
@override
Map<String, dynamic> toJson() {
return <String, dynamic>{
'id': mapId.value,
'radius': radius,
'minZoom': minZoom,
'placemarks': placemarks.map((PlacemarkMapObject p) => p.toJson()).toList(),
'zIndex': zIndex,
'consumeTapEvents': consumeTapEvents,
'isVisible': isVisible
};
}