updateAddressDistrict method
Implementation
ExtendedContactDetail updateAddressDistrict(String district) => copyWith(
address: address == null
? Address(district: district)
: address!.copyWith(district: district));
ExtendedContactDetail updateAddressDistrict(String district) => copyWith(
address: address == null
? Address(district: district)
: address!.copyWith(district: district));