public class Store {
    @Published public var state: Any
    init() {
      self.state = 0
    }
}

@propertyWrapper public struct Published<Value> {
  public init(wrappedValue: Value) {}
  public var wrappedValue: Value {
    get { fatalError() }
    set {}
  }
  public static subscript(_enclosingInstance object: Any,
                          wrapped wrappedKeyPath: Any,
                          storage storageKeyPath: Any)
      -> Value {
    get { fatalError() }
    set {}
  }
  public struct Publisher {}
  public var projectedValue: Publisher {
    mutating get { fatalError() }
  }
}