class SomeViewModel {
  
    @BehaviorSubjectWrapping(value: 0)
    var count: Observable<Int> // Type annotation is actually optional in this case
    
    @PublishSubjectWrapping
    var errors: Observable<String>
    
    func operation() {
      _count.onNext(1)
      _errors.onNext(SomeError.fail)
    }
}

enum SomeError {
  case fail
}

class SomeViewModel {
  
    @BehaviorRelayWrapping(value: 0)
    var count: Observable<Int> // Type annotation is actually optional in this case
    
    @PublishRelayWrapping
    var errors: Observable<String>
    
    func operation() {
      _count.accept(1)
      _errors.accept(SomeError.fail)
    }
}

enum SomeError {
  case fail
}