Province.fromJson constructor
Creates a new Province instance from a JSON map.
The json parameter is a Map<String, dynamic> containing the province data.
Returns a Province object initialized with values from the json map.
Implementation
factory Province.fromJson(Map<String, dynamic> json) {
return Province(
id: json['id'],
nameEn: json['name_en'],
nameSi: json['name_si'],
nameTa: json['name_ta'],
);
}