myLocation method
Implementation
Future<GeoPoint> myLocation() async {
Map<String, dynamic>? value =
await html.promiseToFutureAsMap(interop.locateMe(
mapIdMixin,
));
if (value!.containsKey("error")) {
throw Exception(value["message"]);
}
return GeoPoint.fromMap(Map<String, double>.from(value));
}