ThirdPartyIdentifier constructor
      
      ThirdPartyIdentifier({ 
    
    
- required int addedAt,
- required String address,
- required ThirdPartyIdentifierMedium medium,
- required int validatedAt,
Implementation
ThirdPartyIdentifier({
  required this.addedAt,
  required this.address,
  required this.medium,
  required this.validatedAt,
});