serializeFeature method
Serialize to a geojson feature string
Implementation
String serializeFeature(Map<String, dynamic>? properties) {
final p = properties ?? <String, dynamic>{};
return '{"type":"Feature","properties":${jsonEncode(p)},'
'"geometry":{"type":"Point",'
'"coordinates":' +
geoPoint.toGeoJsonCoordinatesString() +
'}}';
}