asMap method
Returns the object data as a map like Map<String, dynamic>.
Implementation
@override
Map<String, String?> asMap() {
final map = super.asMap();
map.addAll({
'name': name,
'icao': icao,
'iata': iata,
'synop': synop,
'latitude': latitude,
'longitude': longitude,
'elevation': elevation,
'country': country,
});
return map.cast<String, String?>();
}