.dart

abstract class UseCase<Type, Params> {
 Future<Either<Failure, Type>> call(Params params);
}

class GetProfile extends UseCase<MyProfile, NoParams> {
  
 final ProfileRepository repository;
  
GetProfile({required this.repository});
@override
 Future<Either<Failure, MyProfile>> call(NoParams params) => 
   repository.getProfile();
}

class EditProfile extends UseCase<MyProfile, EditProfileParams> {
 final ProfileRepository repository;
EditProfile({required this.repository});
@override
 Future<Either<Failure, MyProfile>> call(EditProfileParams params) => 
 repository.editProfile(params);
}

class DeleteProfile extends UseCase<Unit, NoParams> {
 final ProfileRepository repository;
GetProfile({required this.repository});
@override
 Future<Either<Failure, Unit>> call(NoParams params) => 
   repository.deleteProfile();
}