toJson method
Converts this object to something serializable in JSON.
Implementation
Object toJson() {
final Map<String, Object> json = <String, Object>{};
void addIfPresent(String fieldName, Object? value) {
if (value != null) {
json[fieldName] = value;
}
}
addIfPresent('markerId', markerId.value);
addIfPresent('icon', icon.toJson());
addIfPresent('position', position.toJson());
addIfPresent('visible', visible);
return json;
}