Common request parameter in clean architecture

main.dart

void main(){
  
  
  // only UI has exposure to `UserProfileRequestData` and not to the `UserProfileRequestDataModel`
  final data = UserProfileRequestData(id:101,first_name:"John",last_name:"Carry");
  
  updateUserProfileRepo(data);
}



void updateUserProfileRepo(IRequest request){
  
  print(request.toRequest()); 
}


abstract class IRequest{

  Object toRequest();

}


//Entity
class UserProfileRequestData  implements IRequest{


  late final int id;
  late final String first_name;
  late final String last_name;
  
   UserProfileRequestData(
      {required this.id,
      required this.first_name,
      required this.last_name});
	  
 @override
  Object toRequest() {
    // TODO: implement toRequest
    throw UnimplementedError();
  }
}

//Model
class UserProfileRequestDataModel extends UserProfileRequestData implements IRequest {

	 UserProfileRequestDataModel({
		required int id,
		required String first_name,
		required String last_name,}):super( id: id,
            first_name: first_name,
            last_name: last_name,);
			
	 Map<String, dynamic> toJson() {
    return {
      "first_name": first_name,
      "last_name": last_name,
      "id": id,
	  };
   }
	@override
  Map<String, dynamic> toRequest() => toJson();


}