toMap method
Converts the IndianState object into a Map.
The 'cities' field is converted into a list of maps.
Implementation
Map<String, dynamic> toMap() {
return {
'name': name,
'code': code,
'capital': capital,
'population': population,
'area': area,
'image': image,
'cities': cities.map((city) => city.toMap()).toList(),
};
}