@available(OSX 1066.0, iOS 1066.0, watchOS 1066.0, tvOS 1066.0, visionOS 1066.0, *)
public protocol UnavailableSwiftProtocol {
  func someMethod()
}

@available(OSX 1066.0, iOS 1066.0, watchOS 1066.0, tvOS 1066.0, visionOS 1066.0, *)
public class UnavailableSwiftClass {
  func someMethod() {}
}