county function
Implementation
String county({bool splice = false}) {
final provinceKey = pick(provincesData.keys.toList());
final cityKey = pick(citiesData[provinceKey].keys.toList());
final county = citiesData[cityKey][pick(citiesData[cityKey].keys.toList())];
return splice
? '${provincesData[provinceKey]} ${citiesData[provinceKey][cityKey]} $county'
: county;
}