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GameKit Changes for Swift

GameKit

Modified GKAchievement
Declaration
From
class GKAchievement : NSObject, NSCoding, NSSecureCoding {
    class func loadAchievements(completionHandler completionHandler: (@escaping ([GKAchievement]?, Error?) -> Swift.Void)? = nil)
    class func resetAchievements(completionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
    init(identifier identifier: String?)
    init(identifier identifier: String?, player player: GKPlayer)
    class func report(_ achievements: [GKAchievement], withCompletionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
    var identifier: String?
    var percentComplete: Double
    var isCompleted: Bool { get }
    var lastReportedDate: Date { get }
    var showsCompletionBanner: Bool
    var player: GKPlayer? { get }
    func selectChallengeablePlayerIDs(_ playerIDs: [String]?, withCompletionHandler completionHandler: (@escaping ([String]?, Error?) -> Swift.Void)? = nil)
    func issueChallenge(toPlayers playerIDs: [String]?, message message: String?)
    func challengeComposeController(withPlayers playerIDs: [String]?, message message: String?, completionHandler completionHandler: GameKit.GKChallengeComposeCompletionBlock? = nil) -> UIViewController?
    func challengeComposeController(withMessage message: String?, players players: [GKPlayer], completionHandler completionHandler: GameKit.GKChallengeComposeCompletionBlock? = nil) -> UIViewController
    func selectChallengeablePlayers(_ players: [GKPlayer], withCompletionHandler completionHandler: (@escaping ([GKPlayer]?, Error?) -> Swift.Void)? = nil)
    class func report(_ achievements: [GKAchievement], withEligibleChallenges challenges: [GKChallenge], withCompletionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
    func report(completionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
    init(identifier identifier: String?, forPlayer playerID: String)
    var isHidden: Bool { get }
    var playerID: String { get }
    func awakeFromNib()
    func prepareForInterfaceBuilder()
    func accessibilityActivate() -> Bool
    func accessibilityIncrement()
    func accessibilityDecrement()
    func accessibilityScroll(_ direction: UIAccessibilityScrollDirection) -> Bool
    func accessibilityPerformEscape() -> Bool
    func accessibilityPerformMagicTap() -> Bool
    var accessibilityCustomActions: [UIAccessibilityCustomAction]?
    func accessibilityElementDidBecomeFocused()
    func accessibilityElementDidLoseFocus()
    func accessibilityElementIsFocused() -> Bool
    func accessibilityAssistiveTechnologyFocusedIdentifiers() -> Set<String>?
    func accessibilityElementCount() -> Int
    func accessibilityElement(at index: Int) -> Any?
    func index(ofAccessibilityElement element: Any) -> Int
    var accessibilityElements: [Any]?
    var isAccessibilityElement: Bool
    var accessibilityLabel: String?
    var accessibilityHint: String?
    var accessibilityValue: String?
    var accessibilityTraits: UIAccessibilityTraits
    var accessibilityFrame: CGRect
    @NSCopying var accessibilityPath: UIBezierPath?
    var accessibilityActivationPoint: CGPoint
    var accessibilityLanguage: String?
    var accessibilityElementsHidden: Bool
    var accessibilityViewIsModal: Bool
    var shouldGroupAccessibilityChildren: Bool
    var accessibilityNavigationStyle: UIAccessibilityNavigationStyle
    var accessibilityHeaderElements: [Any]?
    var accessibilityCustomRotors: [UIAccessibilityCustomRotor]?
    func performSelector(onMainThread aSelector: Selector, with arg: Any?, waitUntilDone wait: Bool, modes array: [String]?)
    func performSelector(onMainThread aSelector: Selector, with arg: Any?, waitUntilDone wait: Bool)
    func perform(_ aSelector: Selector, on thr: Thread, with arg: Any?, waitUntilDone wait: Bool, modes array: [String]?)
    func perform(_ aSelector: Selector, on thr: Thread, with arg: Any?, waitUntilDone wait: Bool)
    func performSelector(inBackground aSelector: Selector, with arg: Any?)
    class func classForKeyedUnarchiver() -> AnyClass
    var classForKeyedArchiver: AnyClass? { get }
    func replacementObject(for archiver: NSKeyedArchiver) -> Any?
    class func classFallbacksForKeyedArchiver() -> [String]
    class func keyPathsForValuesAffectingValue(forKey key: String) -> Set<String>
    class func automaticallyNotifiesObservers(forKey key: String) -> Bool
    var observationInfo: UnsafeMutableRawPointer?
    func willChangeValue(forKey key: String)
    func didChangeValue(forKey key: String)
    func willChange(_ changeKind: NSKeyValueChange, valuesAt indexes: IndexSet, forKey key: String)
    func didChange(_ changeKind: NSKeyValueChange, valuesAt indexes: IndexSet, forKey key: String)
    func willChangeValue(forKey key: String, withSetMutation mutationKind: NSKeyValueSetMutationKind, using objects: Set<AnyHashable>)
    func didChangeValue(forKey key: String, withSetMutation mutationKind: NSKeyValueSetMutationKind, using objects: Set<AnyHashable>)
    func addObserver(_ observer: NSObject, forKeyPath keyPath: String, options options: NSKeyValueObservingOptions = [], context context: UnsafeMutableRawPointer?)
    func removeObserver(_ observer: NSObject, forKeyPath keyPath: String, context context: UnsafeMutableRawPointer?)
    func removeObserver(_ observer: NSObject, forKeyPath keyPath: String)
    func observeValue(forKeyPath keyPath: String?, of object: Any?, change change: [NSKeyValueChangeKey : Any]?, context context: UnsafeMutableRawPointer?)
    class var accessInstanceVariablesDirectly: Bool { get }
    func value(forKey key: String) -> Any?
    func setValue(_ value: Any?, forKey key: String)
    func validateValue(_ ioValue: AutoreleasingUnsafeMutablePointer<AnyObject?>, forKey inKey: String) throws
    func mutableArrayValue(forKey key: String) -> NSMutableArray
    func mutableOrderedSetValue(forKey key: String) -> NSMutableOrderedSet
    func mutableSetValue(forKey key: String) -> NSMutableSet
    func value(forKeyPath keyPath: String) -> Any?
    func setValue(_ value: Any?, forKeyPath keyPath: String)
    func validateValue(_ ioValue: AutoreleasingUnsafeMutablePointer<AnyObject?>, forKeyPath inKeyPath: String) throws
    func mutableArrayValue(forKeyPath keyPath: String) -> NSMutableArray
    func mutableOrderedSetValue(forKeyPath keyPath: String) -> NSMutableOrderedSet
    func mutableSetValue(forKeyPath keyPath: String) -> NSMutableSet
    func value(forUndefinedKey key: String) -> Any?
    func setValue(_ value: Any?, forUndefinedKey key: String)
    func setNilValueForKey(_ key: String)
    func dictionaryWithValues(forKeys keys: [String]) -> [String : Any]
    func setValuesForKeys(_ keyedValues: [String : Any])
    func fileManager(_ fm: FileManager, shouldProceedAfterError errorInfo: [AnyHashable : Any]) -> Bool
    func fileManager(_ fm: FileManager, willProcessPath path: String)
    func perform(_ aSelector: Selector, with anArgument: Any?, afterDelay delay: TimeInterval, inModes modes: [RunLoopMode])
    func perform(_ aSelector: Selector, with anArgument: Any?, afterDelay delay: TimeInterval)
    class func cancelPreviousPerformRequests(withTarget aTarget: Any, selector aSelector: Selector, object anArgument: Any?)
    class func cancelPreviousPerformRequests(withTarget aTarget: Any)
    func attemptRecovery(fromError error: Error, optionIndex recoveryOptionIndex: Int, delegate delegate: Any?, didRecoverSelector didRecoverSelector: Selector?, contextInfo contextInfo: UnsafeMutableRawPointer?)
    func attemptRecovery(fromError error: Error, optionIndex recoveryOptionIndex: Int) -> Bool
    var autoContentAccessingProxy: Any { get }
    class func version() -> Int
    class func setVersion(_ aVersion: Int)
    var classForCoder: AnyClass { get }
    func awakeAfter(using aDecoder: NSCoder) -> Any?
    func provideImageData(_ data: UnsafeMutableRawPointer, bytesPerRow rowbytes: Int, origin x: Int, _ y: Int, size width: Int, _ height: Int, userInfo info: Any?)
}
extension GKAchievement : CVarArg {
}
extension GKAchievement : Equatable, Hashable {
    var hashValue: Int { get }
}
extension GKAchievement {
    func report(completionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
    init(identifier identifier: String?, forPlayer playerID: String)
    var isHidden: Bool { get }
    var playerID: String { get }
}
extension GKAchievement {
    func challengeComposeController(withMessage message: String?, players players: [GKPlayer], completionHandler completionHandler: GameKit.GKChallengeComposeCompletionBlock? = nil) -> UIViewController
    func selectChallengeablePlayers(_ players: [GKPlayer], withCompletionHandler completionHandler: (@escaping ([GKPlayer]?, Error?) -> Swift.Void)? = nil)
    class func report(_ achievements: [GKAchievement], withEligibleChallenges challenges: [GKChallenge], withCompletionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
}
extension GKAchievement {
    func selectChallengeablePlayerIDs(_ playerIDs: [String]?, withCompletionHandler completionHandler: (@escaping ([String]?, Error?) -> Swift.Void)? = nil)
    func issueChallenge(toPlayers playerIDs: [String]?, message message: String?)
    func challengeComposeController(withPlayers playerIDs: [String]?, message message: String?, completionHandler completionHandler: GameKit.GKChallengeComposeCompletionBlock? = nil) -> UIViewController?
}
To
class GKAchievement : NSObject, NSCoding, NSSecureCoding {
    class func loadAchievements(completionHandler completionHandler: (([GKAchievement]?, Error?) -> Swift.Void)? = nil)
    class func resetAchievements(completionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)
    init(identifier identifier: String?)
    init(identifier identifier: String?, player player: GKPlayer)
    class func report(_ achievements: [GKAchievement], withCompletionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)
    var identifier: String?
    var percentComplete: Double
    var isCompleted: Bool { get }
    var lastReportedDate: Date { get }
    var showsCompletionBanner: Bool
    var player: GKPlayer? { get }
    func selectChallengeablePlayerIDs(_ playerIDs: [String]?, withCompletionHandler completionHandler: (([String]?, Error?) -> Swift.Void)? = nil)
    func issueChallenge(toPlayers playerIDs: [String]?, message message: String?)
    func challengeComposeController(withPlayers playerIDs: [String]?, message message: String?, completionHandler completionHandler: GameKit.GKChallengeComposeCompletionBlock? = nil) -> UIViewController?
    func challengeComposeController(withMessage message: String?, players players: [GKPlayer], completionHandler completionHandler: GameKit.GKChallengeComposeCompletionBlock? = nil) -> UIViewController
    func selectChallengeablePlayers(_ players: [GKPlayer], withCompletionHandler completionHandler: (([GKPlayer]?, Error?) -> Swift.Void)? = nil)
    class func report(_ achievements: [GKAchievement], withEligibleChallenges challenges: [GKChallenge], withCompletionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)
    func report(completionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)
    init(identifier identifier: String?, forPlayer playerID: String)
    var isHidden: Bool { get }
    var playerID: String { get }
    func awakeFromNib()
    func prepareForInterfaceBuilder()
    func accessibilityActivate() -> Bool
    func accessibilityIncrement()
    func accessibilityDecrement()
    func accessibilityScroll(_ direction: UIAccessibilityScrollDirection) -> Bool
    func accessibilityPerformEscape() -> Bool
    func accessibilityPerformMagicTap() -> Bool
    var accessibilityCustomActions: [UIAccessibilityCustomAction]?
    func accessibilityElementDidBecomeFocused()
    func accessibilityElementDidLoseFocus()
    func accessibilityElementIsFocused() -> Bool
    func accessibilityAssistiveTechnologyFocusedIdentifiers() -> Set<String>?
    func accessibilityElementCount() -> Int
    func accessibilityElement(at index: Int) -> Any?
    func index(ofAccessibilityElement element: Any) -> Int
    var accessibilityElements: [Any]?
    var isAccessibilityElement: Bool
    var accessibilityLabel: String?
    var accessibilityHint: String?
    var accessibilityValue: String?
    var accessibilityTraits: UIAccessibilityTraits
    var accessibilityFrame: CGRect
    @NSCopying var accessibilityPath: UIBezierPath?
    var accessibilityActivationPoint: CGPoint
    var accessibilityLanguage: String?
    var accessibilityElementsHidden: Bool
    var accessibilityViewIsModal: Bool
    var shouldGroupAccessibilityChildren: Bool
    var accessibilityNavigationStyle: UIAccessibilityNavigationStyle
    var accessibilityHeaderElements: [Any]?
    var accessibilityCustomRotors: [UIAccessibilityCustomRotor]?
    func performSelector(onMainThread aSelector: Selector, with arg: Any?, waitUntilDone wait: Bool, modes array: [String]?)
    func performSelector(onMainThread aSelector: Selector, with arg: Any?, waitUntilDone wait: Bool)
    func perform(_ aSelector: Selector, on thr: Thread, with arg: Any?, waitUntilDone wait: Bool, modes array: [String]?)
    func perform(_ aSelector: Selector, on thr: Thread, with arg: Any?, waitUntilDone wait: Bool)
    func performSelector(inBackground aSelector: Selector, with arg: Any?)
    class func classForKeyedUnarchiver() -> AnyClass
    var classForKeyedArchiver: AnyClass? { get }
    func replacementObject(for archiver: NSKeyedArchiver) -> Any?
    class func classFallbacksForKeyedArchiver() -> [String]
    class func keyPathsForValuesAffectingValue(forKey key: String) -> Set<String>
    class func automaticallyNotifiesObservers(forKey key: String) -> Bool
    var observationInfo: UnsafeMutableRawPointer?
    func willChangeValue(forKey key: String)
    func didChangeValue(forKey key: String)
    func willChange(_ changeKind: NSKeyValueChange, valuesAt indexes: IndexSet, forKey key: String)
    func didChange(_ changeKind: NSKeyValueChange, valuesAt indexes: IndexSet, forKey key: String)
    func willChangeValue(forKey key: String, withSetMutation mutationKind: NSKeyValueSetMutationKind, using objects: Set<AnyHashable>)
    func didChangeValue(forKey key: String, withSetMutation mutationKind: NSKeyValueSetMutationKind, using objects: Set<AnyHashable>)
    func addObserver(_ observer: NSObject, forKeyPath keyPath: String, options options: NSKeyValueObservingOptions = [], context context: UnsafeMutableRawPointer?)
    func removeObserver(_ observer: NSObject, forKeyPath keyPath: String, context context: UnsafeMutableRawPointer?)
    func removeObserver(_ observer: NSObject, forKeyPath keyPath: String)
    func observeValue(forKeyPath keyPath: String?, of object: Any?, change change: [NSKeyValueChangeKey : Any]?, context context: UnsafeMutableRawPointer?)
    class var accessInstanceVariablesDirectly: Bool { get }
    func value(forKey key: String) -> Any?
    func setValue(_ value: Any?, forKey key: String)
    func validateValue(_ ioValue: AutoreleasingUnsafeMutablePointer<AnyObject?>, forKey inKey: String) throws
    func mutableArrayValue(forKey key: String) -> NSMutableArray
    func mutableOrderedSetValue(forKey key: String) -> NSMutableOrderedSet
    func mutableSetValue(forKey key: String) -> NSMutableSet
    func value(forKeyPath keyPath: String) -> Any?
    func setValue(_ value: Any?, forKeyPath keyPath: String)
    func validateValue(_ ioValue: AutoreleasingUnsafeMutablePointer<AnyObject?>, forKeyPath inKeyPath: String) throws
    func mutableArrayValue(forKeyPath keyPath: String) -> NSMutableArray
    func mutableOrderedSetValue(forKeyPath keyPath: String) -> NSMutableOrderedSet
    func mutableSetValue(forKeyPath keyPath: String) -> NSMutableSet
    func value(forUndefinedKey key: String) -> Any?
    func setValue(_ value: Any?, forUndefinedKey key: String)
    func setNilValueForKey(_ key: String)
    func dictionaryWithValues(forKeys keys: [String]) -> [String : Any]
    func setValuesForKeys(_ keyedValues: [String : Any])
    func fileManager(_ fm: FileManager, shouldProceedAfterError errorInfo: [AnyHashable : Any]) -> Bool
    func fileManager(_ fm: FileManager, willProcessPath path: String)
    func perform(_ aSelector: Selector, with anArgument: Any?, afterDelay delay: TimeInterval, inModes modes: [RunLoopMode])
    func perform(_ aSelector: Selector, with anArgument: Any?, afterDelay delay: TimeInterval)
    class func cancelPreviousPerformRequests(withTarget aTarget: Any, selector aSelector: Selector, object anArgument: Any?)
    class func cancelPreviousPerformRequests(withTarget aTarget: Any)
    func attemptRecovery(fromError error: Error, optionIndex recoveryOptionIndex: Int, delegate delegate: Any?, didRecoverSelector didRecoverSelector: Selector?, contextInfo contextInfo: UnsafeMutableRawPointer?)
    func attemptRecovery(fromError error: Error, optionIndex recoveryOptionIndex: Int) -> Bool
    var autoContentAccessingProxy: Any { get }
    class func version() -> Int
    class func setVersion(_ aVersion: Int)
    var classForCoder: AnyClass { get }
    func awakeAfter(using aDecoder: NSCoder) -> Any?
    func provideImageData(_ data: UnsafeMutableRawPointer, bytesPerRow rowbytes: Int, origin x: Int, _ y: Int, size width: Int, _ height: Int, userInfo info: Any?)
}
extension GKAchievement : CVarArg {
}
extension GKAchievement : Equatable, Hashable {
    var hashValue: Int { get }
}
extension GKAchievement {
    func report(completionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)
    init(identifier identifier: String?, forPlayer playerID: String)
    var isHidden: Bool { get }
    var playerID: String { get }
}
extension GKAchievement {
    func challengeComposeController(withMessage message: String?, players players: [GKPlayer], completionHandler completionHandler: GameKit.GKChallengeComposeCompletionBlock? = nil) -> UIViewController
    func selectChallengeablePlayers(_ players: [GKPlayer], withCompletionHandler completionHandler: (([GKPlayer]?, Error?) -> Swift.Void)? = nil)
    class func report(_ achievements: [GKAchievement], withEligibleChallenges challenges: [GKChallenge], withCompletionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)
}
extension GKAchievement {
    func selectChallengeablePlayerIDs(_ playerIDs: [String]?, withCompletionHandler completionHandler: (([String]?, Error?) -> Swift.Void)? = nil)
    func issueChallenge(toPlayers playerIDs: [String]?, message message: String?)
    func challengeComposeController(withPlayers playerIDs: [String]?, message message: String?, completionHandler completionHandler: GameKit.GKChallengeComposeCompletionBlock? = nil) -> UIViewController?
}

Declaration
From
class func loadAchievements(completionHandler completionHandler: (@escaping ([GKAchievement]?, Error?) -> Swift.Void)? = nil)
To
class func loadAchievements(completionHandler completionHandler: (([GKAchievement]?, Error?) -> Swift.Void)? = nil)

Declaration
From
class func report(_ achievements: [GKAchievement], withCompletionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
To
class func report(_ achievements: [GKAchievement], withCompletionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)

Declaration
From
class func report(_ achievements: [GKAchievement], withEligibleChallenges challenges: [GKChallenge], withCompletionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
To
class func report(_ achievements: [GKAchievement], withEligibleChallenges challenges: [GKChallenge], withCompletionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)

Declaration
From
class func resetAchievements(completionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
To
class func resetAchievements(completionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)

Declaration
From
func selectChallengeablePlayerIDs(_ playerIDs: [String]?, withCompletionHandler completionHandler: (@escaping ([String]?, Error?) -> Swift.Void)? = nil)
To
func selectChallengeablePlayerIDs(_ playerIDs: [String]?, withCompletionHandler completionHandler: (([String]?, Error?) -> Swift.Void)? = nil)

Declaration
From
func selectChallengeablePlayers(_ players: [GKPlayer], withCompletionHandler completionHandler: (@escaping ([GKPlayer]?, Error?) -> Swift.Void)? = nil)
To
func selectChallengeablePlayers(_ players: [GKPlayer], withCompletionHandler completionHandler: (([GKPlayer]?, Error?) -> Swift.Void)? = nil)

Declaration
From
class GKAchievementDescription : NSObject, NSCoding, NSSecureCoding {
    class func loadAchievementDescriptions(completionHandler completionHandler: (@escaping ([GKAchievementDescription]?, Error?) -> Swift.Void)? = nil)
    var identifier: String? { get }
    var groupIdentifier: String? { get }
    var title: String? { get }
    var achievedDescription: String? { get }
    var unachievedDescription: String? { get }
    var maximumPoints: Int { get }
    var isHidden: Bool { get }
    var isReplayable: Bool { get }
    var image: UIImage? { get }
    func loadImage(completionHandler completionHandler: (@escaping (UIImage?, Error?) -> Swift.Void)? = nil)
    class func incompleteAchievementImage() -> UIImage
    class func placeholderCompletedAchievementImage() -> UIImage
    func awakeFromNib()
    func prepareForInterfaceBuilder()
    func accessibilityActivate() -> Bool
    func accessibilityIncrement()
    func accessibilityDecrement()
    func accessibilityScroll(_ direction: UIAccessibilityScrollDirection) -> Bool
    func accessibilityPerformEscape() -> Bool
    func accessibilityPerformMagicTap() -> Bool
    var accessibilityCustomActions: [UIAccessibilityCustomAction]?
    func accessibilityElementDidBecomeFocused()
    func accessibilityElementDidLoseFocus()
    func accessibilityElementIsFocused() -> Bool
    func accessibilityAssistiveTechnologyFocusedIdentifiers() -> Set<String>?
    func accessibilityElementCount() -> Int
    func accessibilityElement(at index: Int) -> Any?
    func index(ofAccessibilityElement element: Any) -> Int
    var accessibilityElements: [Any]?
    var isAccessibilityElement: Bool
    var accessibilityLabel: String?
    var accessibilityHint: String?
    var accessibilityValue: String?
    var accessibilityTraits: UIAccessibilityTraits
    var accessibilityFrame: CGRect
    @NSCopying var accessibilityPath: UIBezierPath?
    var accessibilityActivationPoint: CGPoint
    var accessibilityLanguage: String?
    var accessibilityElementsHidden: Bool
    var accessibilityViewIsModal: Bool
    var shouldGroupAccessibilityChildren: Bool
    var accessibilityNavigationStyle: UIAccessibilityNavigationStyle
    var accessibilityHeaderElements: [Any]?
    var accessibilityCustomRotors: [UIAccessibilityCustomRotor]?
    func performSelector(onMainThread aSelector: Selector, with arg: Any?, waitUntilDone wait: Bool, modes array: [String]?)
    func performSelector(onMainThread aSelector: Selector, with arg: Any?, waitUntilDone wait: Bool)
    func perform(_ aSelector: Selector, on thr: Thread, with arg: Any?, waitUntilDone wait: Bool, modes array: [String]?)
    func perform(_ aSelector: Selector, on thr: Thread, with arg: Any?, waitUntilDone wait: Bool)
    func performSelector(inBackground aSelector: Selector, with arg: Any?)
    class func classForKeyedUnarchiver() -> AnyClass
    var classForKeyedArchiver: AnyClass? { get }
    func replacementObject(for archiver: NSKeyedArchiver) -> Any?
    class func classFallbacksForKeyedArchiver() -> [String]
    class func keyPathsForValuesAffectingValue(forKey key: String) -> Set<String>
    class func automaticallyNotifiesObservers(forKey key: String) -> Bool
    var observationInfo: UnsafeMutableRawPointer?
    func willChangeValue(forKey key: String)
    func didChangeValue(forKey key: String)
    func willChange(_ changeKind: NSKeyValueChange, valuesAt indexes: IndexSet, forKey key: String)
    func didChange(_ changeKind: NSKeyValueChange, valuesAt indexes: IndexSet, forKey key: String)
    func willChangeValue(forKey key: String, withSetMutation mutationKind: NSKeyValueSetMutationKind, using objects: Set<AnyHashable>)
    func didChangeValue(forKey key: String, withSetMutation mutationKind: NSKeyValueSetMutationKind, using objects: Set<AnyHashable>)
    func addObserver(_ observer: NSObject, forKeyPath keyPath: String, options options: NSKeyValueObservingOptions = [], context context: UnsafeMutableRawPointer?)
    func removeObserver(_ observer: NSObject, forKeyPath keyPath: String, context context: UnsafeMutableRawPointer?)
    func removeObserver(_ observer: NSObject, forKeyPath keyPath: String)
    func observeValue(forKeyPath keyPath: String?, of object: Any?, change change: [NSKeyValueChangeKey : Any]?, context context: UnsafeMutableRawPointer?)
    class var accessInstanceVariablesDirectly: Bool { get }
    func value(forKey key: String) -> Any?
    func setValue(_ value: Any?, forKey key: String)
    func validateValue(_ ioValue: AutoreleasingUnsafeMutablePointer<AnyObject?>, forKey inKey: String) throws
    func mutableArrayValue(forKey key: String) -> NSMutableArray
    func mutableOrderedSetValue(forKey key: String) -> NSMutableOrderedSet
    func mutableSetValue(forKey key: String) -> NSMutableSet
    func value(forKeyPath keyPath: String) -> Any?
    func setValue(_ value: Any?, forKeyPath keyPath: String)
    func validateValue(_ ioValue: AutoreleasingUnsafeMutablePointer<AnyObject?>, forKeyPath inKeyPath: String) throws
    func mutableArrayValue(forKeyPath keyPath: String) -> NSMutableArray
    func mutableOrderedSetValue(forKeyPath keyPath: String) -> NSMutableOrderedSet
    func mutableSetValue(forKeyPath keyPath: String) -> NSMutableSet
    func value(forUndefinedKey key: String) -> Any?
    func setValue(_ value: Any?, forUndefinedKey key: String)
    func setNilValueForKey(_ key: String)
    func dictionaryWithValues(forKeys keys: [String]) -> [String : Any]
    func setValuesForKeys(_ keyedValues: [String : Any])
    func fileManager(_ fm: FileManager, shouldProceedAfterError errorInfo: [AnyHashable : Any]) -> Bool
    func fileManager(_ fm: FileManager, willProcessPath path: String)
    func perform(_ aSelector: Selector, with anArgument: Any?, afterDelay delay: TimeInterval, inModes modes: [RunLoopMode])
    func perform(_ aSelector: Selector, with anArgument: Any?, afterDelay delay: TimeInterval)
    class func cancelPreviousPerformRequests(withTarget aTarget: Any, selector aSelector: Selector, object anArgument: Any?)
    class func cancelPreviousPerformRequests(withTarget aTarget: Any)
    func attemptRecovery(fromError error: Error, optionIndex recoveryOptionIndex: Int, delegate delegate: Any?, didRecoverSelector didRecoverSelector: Selector?, contextInfo contextInfo: UnsafeMutableRawPointer?)
    func attemptRecovery(fromError error: Error, optionIndex recoveryOptionIndex: Int) -> Bool
    var autoContentAccessingProxy: Any { get }
    class func version() -> Int
    class func setVersion(_ aVersion: Int)
    var classForCoder: AnyClass { get }
    func awakeAfter(using aDecoder: NSCoder) -> Any?
    func provideImageData(_ data: UnsafeMutableRawPointer, bytesPerRow rowbytes: Int, origin x: Int, _ y: Int, size width: Int, _ height: Int, userInfo info: Any?)
}
extension GKAchievementDescription : CVarArg {
}
extension GKAchievementDescription : Equatable, Hashable {
    var hashValue: Int { get }
}
extension GKAchievementDescription {
    var image: UIImage? { get }
    func loadImage(completionHandler completionHandler: (@escaping (UIImage?, Error?) -> Swift.Void)? = nil)
    class func incompleteAchievementImage() -> UIImage
    class func placeholderCompletedAchievementImage() -> UIImage
}
To
class GKAchievementDescription : NSObject, NSCoding, NSSecureCoding {
    class func loadAchievementDescriptions(completionHandler completionHandler: (([GKAchievementDescription]?, Error?) -> Swift.Void)? = nil)
    var identifier: String? { get }
    var groupIdentifier: String? { get }
    var title: String? { get }
    var achievedDescription: String? { get }
    var unachievedDescription: String? { get }
    var maximumPoints: Int { get }
    var isHidden: Bool { get }
    var isReplayable: Bool { get }
    var image: UIImage? { get }
    func loadImage(completionHandler completionHandler: ((UIImage?, Error?) -> Swift.Void)? = nil)
    class func incompleteAchievementImage() -> UIImage
    class func placeholderCompletedAchievementImage() -> UIImage
    func awakeFromNib()
    func prepareForInterfaceBuilder()
    func accessibilityActivate() -> Bool
    func accessibilityIncrement()
    func accessibilityDecrement()
    func accessibilityScroll(_ direction: UIAccessibilityScrollDirection) -> Bool
    func accessibilityPerformEscape() -> Bool
    func accessibilityPerformMagicTap() -> Bool
    var accessibilityCustomActions: [UIAccessibilityCustomAction]?
    func accessibilityElementDidBecomeFocused()
    func accessibilityElementDidLoseFocus()
    func accessibilityElementIsFocused() -> Bool
    func accessibilityAssistiveTechnologyFocusedIdentifiers() -> Set<String>?
    func accessibilityElementCount() -> Int
    func accessibilityElement(at index: Int) -> Any?
    func index(ofAccessibilityElement element: Any) -> Int
    var accessibilityElements: [Any]?
    var isAccessibilityElement: Bool
    var accessibilityLabel: String?
    var accessibilityHint: String?
    var accessibilityValue: String?
    var accessibilityTraits: UIAccessibilityTraits
    var accessibilityFrame: CGRect
    @NSCopying var accessibilityPath: UIBezierPath?
    var accessibilityActivationPoint: CGPoint
    var accessibilityLanguage: String?
    var accessibilityElementsHidden: Bool
    var accessibilityViewIsModal: Bool
    var shouldGroupAccessibilityChildren: Bool
    var accessibilityNavigationStyle: UIAccessibilityNavigationStyle
    var accessibilityHeaderElements: [Any]?
    var accessibilityCustomRotors: [UIAccessibilityCustomRotor]?
    func performSelector(onMainThread aSelector: Selector, with arg: Any?, waitUntilDone wait: Bool, modes array: [String]?)
    func performSelector(onMainThread aSelector: Selector, with arg: Any?, waitUntilDone wait: Bool)
    func perform(_ aSelector: Selector, on thr: Thread, with arg: Any?, waitUntilDone wait: Bool, modes array: [String]?)
    func perform(_ aSelector: Selector, on thr: Thread, with arg: Any?, waitUntilDone wait: Bool)
    func performSelector(inBackground aSelector: Selector, with arg: Any?)
    class func classForKeyedUnarchiver() -> AnyClass
    var classForKeyedArchiver: AnyClass? { get }
    func replacementObject(for archiver: NSKeyedArchiver) -> Any?
    class func classFallbacksForKeyedArchiver() -> [String]
    class func keyPathsForValuesAffectingValue(forKey key: String) -> Set<String>
    class func automaticallyNotifiesObservers(forKey key: String) -> Bool
    var observationInfo: UnsafeMutableRawPointer?
    func willChangeValue(forKey key: String)
    func didChangeValue(forKey key: String)
    func willChange(_ changeKind: NSKeyValueChange, valuesAt indexes: IndexSet, forKey key: String)
    func didChange(_ changeKind: NSKeyValueChange, valuesAt indexes: IndexSet, forKey key: String)
    func willChangeValue(forKey key: String, withSetMutation mutationKind: NSKeyValueSetMutationKind, using objects: Set<AnyHashable>)
    func didChangeValue(forKey key: String, withSetMutation mutationKind: NSKeyValueSetMutationKind, using objects: Set<AnyHashable>)
    func addObserver(_ observer: NSObject, forKeyPath keyPath: String, options options: NSKeyValueObservingOptions = [], context context: UnsafeMutableRawPointer?)
    func removeObserver(_ observer: NSObject, forKeyPath keyPath: String, context context: UnsafeMutableRawPointer?)
    func removeObserver(_ observer: NSObject, forKeyPath keyPath: String)
    func observeValue(forKeyPath keyPath: String?, of object: Any?, change change: [NSKeyValueChangeKey : Any]?, context context: UnsafeMutableRawPointer?)
    class var accessInstanceVariablesDirectly: Bool { get }
    func value(forKey key: String) -> Any?
    func setValue(_ value: Any?, forKey key: String)
    func validateValue(_ ioValue: AutoreleasingUnsafeMutablePointer<AnyObject?>, forKey inKey: String) throws
    func mutableArrayValue(forKey key: String) -> NSMutableArray
    func mutableOrderedSetValue(forKey key: String) -> NSMutableOrderedSet
    func mutableSetValue(forKey key: String) -> NSMutableSet
    func value(forKeyPath keyPath: String) -> Any?
    func setValue(_ value: Any?, forKeyPath keyPath: String)
    func validateValue(_ ioValue: AutoreleasingUnsafeMutablePointer<AnyObject?>, forKeyPath inKeyPath: String) throws
    func mutableArrayValue(forKeyPath keyPath: String) -> NSMutableArray
    func mutableOrderedSetValue(forKeyPath keyPath: String) -> NSMutableOrderedSet
    func mutableSetValue(forKeyPath keyPath: String) -> NSMutableSet
    func value(forUndefinedKey key: String) -> Any?
    func setValue(_ value: Any?, forUndefinedKey key: String)
    func setNilValueForKey(_ key: String)
    func dictionaryWithValues(forKeys keys: [String]) -> [String : Any]
    func setValuesForKeys(_ keyedValues: [String : Any])
    func fileManager(_ fm: FileManager, shouldProceedAfterError errorInfo: [AnyHashable : Any]) -> Bool
    func fileManager(_ fm: FileManager, willProcessPath path: String)
    func perform(_ aSelector: Selector, with anArgument: Any?, afterDelay delay: TimeInterval, inModes modes: [RunLoopMode])
    func perform(_ aSelector: Selector, with anArgument: Any?, afterDelay delay: TimeInterval)
    class func cancelPreviousPerformRequests(withTarget aTarget: Any, selector aSelector: Selector, object anArgument: Any?)
    class func cancelPreviousPerformRequests(withTarget aTarget: Any)
    func attemptRecovery(fromError error: Error, optionIndex recoveryOptionIndex: Int, delegate delegate: Any?, didRecoverSelector didRecoverSelector: Selector?, contextInfo contextInfo: UnsafeMutableRawPointer?)
    func attemptRecovery(fromError error: Error, optionIndex recoveryOptionIndex: Int) -> Bool
    var autoContentAccessingProxy: Any { get }
    class func version() -> Int
    class func setVersion(_ aVersion: Int)
    var classForCoder: AnyClass { get }
    func awakeAfter(using aDecoder: NSCoder) -> Any?
    func provideImageData(_ data: UnsafeMutableRawPointer, bytesPerRow rowbytes: Int, origin x: Int, _ y: Int, size width: Int, _ height: Int, userInfo info: Any?)
}
extension GKAchievementDescription : CVarArg {
}
extension GKAchievementDescription : Equatable, Hashable {
    var hashValue: Int { get }
}
extension GKAchievementDescription {
    var image: UIImage? { get }
    func loadImage(completionHandler completionHandler: ((UIImage?, Error?) -> Swift.Void)? = nil)
    class func incompleteAchievementImage() -> UIImage
    class func placeholderCompletedAchievementImage() -> UIImage
}

Declaration
From
class func loadAchievementDescriptions(completionHandler completionHandler: (@escaping ([GKAchievementDescription]?, Error?) -> Swift.Void)? = nil)
To
class func loadAchievementDescriptions(completionHandler completionHandler: (([GKAchievementDescription]?, Error?) -> Swift.Void)? = nil)

Declaration
From
func loadImage(completionHandler completionHandler: (@escaping (UIImage?, Error?) -> Swift.Void)? = nil)
To
func loadImage(completionHandler completionHandler: ((UIImage?, Error?) -> Swift.Void)? = nil)

Modified GKChallenge
Declaration
From
class GKChallenge : NSObject, NSCoding, NSSecureCoding {
    class func loadReceivedChallenges(completionHandler completionHandler: (@escaping ([GKChallenge]?, Error?) -> Swift.Void)? = nil)
    func decline()
    var issuingPlayerID: String? { get }
    var receivingPlayerID: String? { get }
    @NSCopying var issuingPlayer: GKPlayer? { get }
    @NSCopying var receivingPlayer: GKPlayer? { get }
    var state: GKChallengeState { get }
    var issueDate: Date { get }
    var completionDate: Date? { get }
    var message: String? { get }
    func awakeFromNib()
    func prepareForInterfaceBuilder()
    func accessibilityActivate() -> Bool
    func accessibilityIncrement()
    func accessibilityDecrement()
    func accessibilityScroll(_ direction: UIAccessibilityScrollDirection) -> Bool
    func accessibilityPerformEscape() -> Bool
    func accessibilityPerformMagicTap() -> Bool
    var accessibilityCustomActions: [UIAccessibilityCustomAction]?
    func accessibilityElementDidBecomeFocused()
    func accessibilityElementDidLoseFocus()
    func accessibilityElementIsFocused() -> Bool
    func accessibilityAssistiveTechnologyFocusedIdentifiers() -> Set<String>?
    func accessibilityElementCount() -> Int
    func accessibilityElement(at index: Int) -> Any?
    func index(ofAccessibilityElement element: Any) -> Int
    var accessibilityElements: [Any]?
    var isAccessibilityElement: Bool
    var accessibilityLabel: String?
    var accessibilityHint: String?
    var accessibilityValue: String?
    var accessibilityTraits: UIAccessibilityTraits
    var accessibilityFrame: CGRect
    @NSCopying var accessibilityPath: UIBezierPath?
    var accessibilityActivationPoint: CGPoint
    var accessibilityLanguage: String?
    var accessibilityElementsHidden: Bool
    var accessibilityViewIsModal: Bool
    var shouldGroupAccessibilityChildren: Bool
    var accessibilityNavigationStyle: UIAccessibilityNavigationStyle
    var accessibilityHeaderElements: [Any]?
    var accessibilityCustomRotors: [UIAccessibilityCustomRotor]?
    func performSelector(onMainThread aSelector: Selector, with arg: Any?, waitUntilDone wait: Bool, modes array: [String]?)
    func performSelector(onMainThread aSelector: Selector, with arg: Any?, waitUntilDone wait: Bool)
    func perform(_ aSelector: Selector, on thr: Thread, with arg: Any?, waitUntilDone wait: Bool, modes array: [String]?)
    func perform(_ aSelector: Selector, on thr: Thread, with arg: Any?, waitUntilDone wait: Bool)
    func performSelector(inBackground aSelector: Selector, with arg: Any?)
    class func classForKeyedUnarchiver() -> AnyClass
    var classForKeyedArchiver: AnyClass? { get }
    func replacementObject(for archiver: NSKeyedArchiver) -> Any?
    class func classFallbacksForKeyedArchiver() -> [String]
    class func keyPathsForValuesAffectingValue(forKey key: String) -> Set<String>
    class func automaticallyNotifiesObservers(forKey key: String) -> Bool
    var observationInfo: UnsafeMutableRawPointer?
    func willChangeValue(forKey key: String)
    func didChangeValue(forKey key: String)
    func willChange(_ changeKind: NSKeyValueChange, valuesAt indexes: IndexSet, forKey key: String)
    func didChange(_ changeKind: NSKeyValueChange, valuesAt indexes: IndexSet, forKey key: String)
    func willChangeValue(forKey key: String, withSetMutation mutationKind: NSKeyValueSetMutationKind, using objects: Set<AnyHashable>)
    func didChangeValue(forKey key: String, withSetMutation mutationKind: NSKeyValueSetMutationKind, using objects: Set<AnyHashable>)
    func addObserver(_ observer: NSObject, forKeyPath keyPath: String, options options: NSKeyValueObservingOptions = [], context context: UnsafeMutableRawPointer?)
    func removeObserver(_ observer: NSObject, forKeyPath keyPath: String, context context: UnsafeMutableRawPointer?)
    func removeObserver(_ observer: NSObject, forKeyPath keyPath: String)
    func observeValue(forKeyPath keyPath: String?, of object: Any?, change change: [NSKeyValueChangeKey : Any]?, context context: UnsafeMutableRawPointer?)
    class var accessInstanceVariablesDirectly: Bool { get }
    func value(forKey key: String) -> Any?
    func setValue(_ value: Any?, forKey key: String)
    func validateValue(_ ioValue: AutoreleasingUnsafeMutablePointer<AnyObject?>, forKey inKey: String) throws
    func mutableArrayValue(forKey key: String) -> NSMutableArray
    func mutableOrderedSetValue(forKey key: String) -> NSMutableOrderedSet
    func mutableSetValue(forKey key: String) -> NSMutableSet
    func value(forKeyPath keyPath: String) -> Any?
    func setValue(_ value: Any?, forKeyPath keyPath: String)
    func validateValue(_ ioValue: AutoreleasingUnsafeMutablePointer<AnyObject?>, forKeyPath inKeyPath: String) throws
    func mutableArrayValue(forKeyPath keyPath: String) -> NSMutableArray
    func mutableOrderedSetValue(forKeyPath keyPath: String) -> NSMutableOrderedSet
    func mutableSetValue(forKeyPath keyPath: String) -> NSMutableSet
    func value(forUndefinedKey key: String) -> Any?
    func setValue(_ value: Any?, forUndefinedKey key: String)
    func setNilValueForKey(_ key: String)
    func dictionaryWithValues(forKeys keys: [String]) -> [String : Any]
    func setValuesForKeys(_ keyedValues: [String : Any])
    func fileManager(_ fm: FileManager, shouldProceedAfterError errorInfo: [AnyHashable : Any]) -> Bool
    func fileManager(_ fm: FileManager, willProcessPath path: String)
    func perform(_ aSelector: Selector, with anArgument: Any?, afterDelay delay: TimeInterval, inModes modes: [RunLoopMode])
    func perform(_ aSelector: Selector, with anArgument: Any?, afterDelay delay: TimeInterval)
    class func cancelPreviousPerformRequests(withTarget aTarget: Any, selector aSelector: Selector, object anArgument: Any?)
    class func cancelPreviousPerformRequests(withTarget aTarget: Any)
    func attemptRecovery(fromError error: Error, optionIndex recoveryOptionIndex: Int, delegate delegate: Any?, didRecoverSelector didRecoverSelector: Selector?, contextInfo contextInfo: UnsafeMutableRawPointer?)
    func attemptRecovery(fromError error: Error, optionIndex recoveryOptionIndex: Int) -> Bool
    var autoContentAccessingProxy: Any { get }
    class func version() -> Int
    class func setVersion(_ aVersion: Int)
    var classForCoder: AnyClass { get }
    func awakeAfter(using aDecoder: NSCoder) -> Any?
    func provideImageData(_ data: UnsafeMutableRawPointer, bytesPerRow rowbytes: Int, origin x: Int, _ y: Int, size width: Int, _ height: Int, userInfo info: Any?)
}
extension GKChallenge : CVarArg {
}
extension GKChallenge : Equatable, Hashable {
    var hashValue: Int { get }
}
To
class GKChallenge : NSObject, NSCoding, NSSecureCoding {
    class func loadReceivedChallenges(completionHandler completionHandler: (([GKChallenge]?, Error?) -> Swift.Void)? = nil)
    func decline()
    var issuingPlayerID: String? { get }
    var receivingPlayerID: String? { get }
    @NSCopying var issuingPlayer: GKPlayer? { get }
    @NSCopying var receivingPlayer: GKPlayer? { get }
    var state: GKChallengeState { get }
    var issueDate: Date { get }
    var completionDate: Date? { get }
    var message: String? { get }
    func awakeFromNib()
    func prepareForInterfaceBuilder()
    func accessibilityActivate() -> Bool
    func accessibilityIncrement()
    func accessibilityDecrement()
    func accessibilityScroll(_ direction: UIAccessibilityScrollDirection) -> Bool
    func accessibilityPerformEscape() -> Bool
    func accessibilityPerformMagicTap() -> Bool
    var accessibilityCustomActions: [UIAccessibilityCustomAction]?
    func accessibilityElementDidBecomeFocused()
    func accessibilityElementDidLoseFocus()
    func accessibilityElementIsFocused() -> Bool
    func accessibilityAssistiveTechnologyFocusedIdentifiers() -> Set<String>?
    func accessibilityElementCount() -> Int
    func accessibilityElement(at index: Int) -> Any?
    func index(ofAccessibilityElement element: Any) -> Int
    var accessibilityElements: [Any]?
    var isAccessibilityElement: Bool
    var accessibilityLabel: String?
    var accessibilityHint: String?
    var accessibilityValue: String?
    var accessibilityTraits: UIAccessibilityTraits
    var accessibilityFrame: CGRect
    @NSCopying var accessibilityPath: UIBezierPath?
    var accessibilityActivationPoint: CGPoint
    var accessibilityLanguage: String?
    var accessibilityElementsHidden: Bool
    var accessibilityViewIsModal: Bool
    var shouldGroupAccessibilityChildren: Bool
    var accessibilityNavigationStyle: UIAccessibilityNavigationStyle
    var accessibilityHeaderElements: [Any]?
    var accessibilityCustomRotors: [UIAccessibilityCustomRotor]?
    func performSelector(onMainThread aSelector: Selector, with arg: Any?, waitUntilDone wait: Bool, modes array: [String]?)
    func performSelector(onMainThread aSelector: Selector, with arg: Any?, waitUntilDone wait: Bool)
    func perform(_ aSelector: Selector, on thr: Thread, with arg: Any?, waitUntilDone wait: Bool, modes array: [String]?)
    func perform(_ aSelector: Selector, on thr: Thread, with arg: Any?, waitUntilDone wait: Bool)
    func performSelector(inBackground aSelector: Selector, with arg: Any?)
    class func classForKeyedUnarchiver() -> AnyClass
    var classForKeyedArchiver: AnyClass? { get }
    func replacementObject(for archiver: NSKeyedArchiver) -> Any?
    class func classFallbacksForKeyedArchiver() -> [String]
    class func keyPathsForValuesAffectingValue(forKey key: String) -> Set<String>
    class func automaticallyNotifiesObservers(forKey key: String) -> Bool
    var observationInfo: UnsafeMutableRawPointer?
    func willChangeValue(forKey key: String)
    func didChangeValue(forKey key: String)
    func willChange(_ changeKind: NSKeyValueChange, valuesAt indexes: IndexSet, forKey key: String)
    func didChange(_ changeKind: NSKeyValueChange, valuesAt indexes: IndexSet, forKey key: String)
    func willChangeValue(forKey key: String, withSetMutation mutationKind: NSKeyValueSetMutationKind, using objects: Set<AnyHashable>)
    func didChangeValue(forKey key: String, withSetMutation mutationKind: NSKeyValueSetMutationKind, using objects: Set<AnyHashable>)
    func addObserver(_ observer: NSObject, forKeyPath keyPath: String, options options: NSKeyValueObservingOptions = [], context context: UnsafeMutableRawPointer?)
    func removeObserver(_ observer: NSObject, forKeyPath keyPath: String, context context: UnsafeMutableRawPointer?)
    func removeObserver(_ observer: NSObject, forKeyPath keyPath: String)
    func observeValue(forKeyPath keyPath: String?, of object: Any?, change change: [NSKeyValueChangeKey : Any]?, context context: UnsafeMutableRawPointer?)
    class var accessInstanceVariablesDirectly: Bool { get }
    func value(forKey key: String) -> Any?
    func setValue(_ value: Any?, forKey key: String)
    func validateValue(_ ioValue: AutoreleasingUnsafeMutablePointer<AnyObject?>, forKey inKey: String) throws
    func mutableArrayValue(forKey key: String) -> NSMutableArray
    func mutableOrderedSetValue(forKey key: String) -> NSMutableOrderedSet
    func mutableSetValue(forKey key: String) -> NSMutableSet
    func value(forKeyPath keyPath: String) -> Any?
    func setValue(_ value: Any?, forKeyPath keyPath: String)
    func validateValue(_ ioValue: AutoreleasingUnsafeMutablePointer<AnyObject?>, forKeyPath inKeyPath: String) throws
    func mutableArrayValue(forKeyPath keyPath: String) -> NSMutableArray
    func mutableOrderedSetValue(forKeyPath keyPath: String) -> NSMutableOrderedSet
    func mutableSetValue(forKeyPath keyPath: String) -> NSMutableSet
    func value(forUndefinedKey key: String) -> Any?
    func setValue(_ value: Any?, forUndefinedKey key: String)
    func setNilValueForKey(_ key: String)
    func dictionaryWithValues(forKeys keys: [String]) -> [String : Any]
    func setValuesForKeys(_ keyedValues: [String : Any])
    func fileManager(_ fm: FileManager, shouldProceedAfterError errorInfo: [AnyHashable : Any]) -> Bool
    func fileManager(_ fm: FileManager, willProcessPath path: String)
    func perform(_ aSelector: Selector, with anArgument: Any?, afterDelay delay: TimeInterval, inModes modes: [RunLoopMode])
    func perform(_ aSelector: Selector, with anArgument: Any?, afterDelay delay: TimeInterval)
    class func cancelPreviousPerformRequests(withTarget aTarget: Any, selector aSelector: Selector, object anArgument: Any?)
    class func cancelPreviousPerformRequests(withTarget aTarget: Any)
    func attemptRecovery(fromError error: Error, optionIndex recoveryOptionIndex: Int, delegate delegate: Any?, didRecoverSelector didRecoverSelector: Selector?, contextInfo contextInfo: UnsafeMutableRawPointer?)
    func attemptRecovery(fromError error: Error, optionIndex recoveryOptionIndex: Int) -> Bool
    var autoContentAccessingProxy: Any { get }
    class func version() -> Int
    class func setVersion(_ aVersion: Int)
    var classForCoder: AnyClass { get }
    func awakeAfter(using aDecoder: NSCoder) -> Any?
    func provideImageData(_ data: UnsafeMutableRawPointer, bytesPerRow rowbytes: Int, origin x: Int, _ y: Int, size width: Int, _ height: Int, userInfo info: Any?)
}
extension GKChallenge : CVarArg {
}
extension GKChallenge : Equatable, Hashable {
    var hashValue: Int { get }
}

Declaration
From
class func loadReceivedChallenges(completionHandler completionHandler: (@escaping ([GKChallenge]?, Error?) -> Swift.Void)? = nil)
To
class func loadReceivedChallenges(completionHandler completionHandler: (([GKChallenge]?, Error?) -> Swift.Void)? = nil)

Modified GKLeaderboard
Declaration
From
class GKLeaderboard : NSObject {
    var timeScope: GKLeaderboardTimeScope
    var playerScope: GKLeaderboardPlayerScope
    var identifier: String?
    var title: String? { get }
    var range: NSRange
    var scores: [GKScore]? { get }
    var maxRange: Int { get }
    var localPlayerScore: GKScore? { get }
    var isLoading: Bool { get }
    var groupIdentifier: String? { get }
    init()
    init(players players: [GKPlayer])
    func loadScores(completionHandler completionHandler: (@escaping ([GKScore]?, Error?) -> Swift.Void)? = nil)
    class func loadLeaderboards(completionHandler completionHandler: (@escaping ([GKLeaderboard]?, Error?) -> Swift.Void)? = nil)
    func loadImage(completionHandler completionHandler: (@escaping (UIImage?, Error?) -> Swift.Void)? = nil)
    var category: String?
    init?(playerIDs playerIDs: [String]?)
    class func loadCategories(completionHandler completionHandler: (@escaping ([String]?, [String]?, Error?) -> Swift.Void)? = nil)
    class func setDefault(_ leaderboardIdentifier: String?, withCompletionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
    func awakeFromNib()
    func prepareForInterfaceBuilder()
    func accessibilityActivate() -> Bool
    func accessibilityIncrement()
    func accessibilityDecrement()
    func accessibilityScroll(_ direction: UIAccessibilityScrollDirection) -> Bool
    func accessibilityPerformEscape() -> Bool
    func accessibilityPerformMagicTap() -> Bool
    var accessibilityCustomActions: [UIAccessibilityCustomAction]?
    func accessibilityElementDidBecomeFocused()
    func accessibilityElementDidLoseFocus()
    func accessibilityElementIsFocused() -> Bool
    func accessibilityAssistiveTechnologyFocusedIdentifiers() -> Set<String>?
    func accessibilityElementCount() -> Int
    func accessibilityElement(at index: Int) -> Any?
    func index(ofAccessibilityElement element: Any) -> Int
    var accessibilityElements: [Any]?
    var isAccessibilityElement: Bool
    var accessibilityLabel: String?
    var accessibilityHint: String?
    var accessibilityValue: String?
    var accessibilityTraits: UIAccessibilityTraits
    var accessibilityFrame: CGRect
    @NSCopying var accessibilityPath: UIBezierPath?
    var accessibilityActivationPoint: CGPoint
    var accessibilityLanguage: String?
    var accessibilityElementsHidden: Bool
    var accessibilityViewIsModal: Bool
    var shouldGroupAccessibilityChildren: Bool
    var accessibilityNavigationStyle: UIAccessibilityNavigationStyle
    var accessibilityHeaderElements: [Any]?
    var accessibilityCustomRotors: [UIAccessibilityCustomRotor]?
    func performSelector(onMainThread aSelector: Selector, with arg: Any?, waitUntilDone wait: Bool, modes array: [String]?)
    func performSelector(onMainThread aSelector: Selector, with arg: Any?, waitUntilDone wait: Bool)
    func perform(_ aSelector: Selector, on thr: Thread, with arg: Any?, waitUntilDone wait: Bool, modes array: [String]?)
    func perform(_ aSelector: Selector, on thr: Thread, with arg: Any?, waitUntilDone wait: Bool)
    func performSelector(inBackground aSelector: Selector, with arg: Any?)
    class func classForKeyedUnarchiver() -> AnyClass
    var classForKeyedArchiver: AnyClass? { get }
    func replacementObject(for archiver: NSKeyedArchiver) -> Any?
    class func classFallbacksForKeyedArchiver() -> [String]
    class func keyPathsForValuesAffectingValue(forKey key: String) -> Set<String>
    class func automaticallyNotifiesObservers(forKey key: String) -> Bool
    var observationInfo: UnsafeMutableRawPointer?
    func willChangeValue(forKey key: String)
    func didChangeValue(forKey key: String)
    func willChange(_ changeKind: NSKeyValueChange, valuesAt indexes: IndexSet, forKey key: String)
    func didChange(_ changeKind: NSKeyValueChange, valuesAt indexes: IndexSet, forKey key: String)
    func willChangeValue(forKey key: String, withSetMutation mutationKind: NSKeyValueSetMutationKind, using objects: Set<AnyHashable>)
    func didChangeValue(forKey key: String, withSetMutation mutationKind: NSKeyValueSetMutationKind, using objects: Set<AnyHashable>)
    func addObserver(_ observer: NSObject, forKeyPath keyPath: String, options options: NSKeyValueObservingOptions = [], context context: UnsafeMutableRawPointer?)
    func removeObserver(_ observer: NSObject, forKeyPath keyPath: String, context context: UnsafeMutableRawPointer?)
    func removeObserver(_ observer: NSObject, forKeyPath keyPath: String)
    func observeValue(forKeyPath keyPath: String?, of object: Any?, change change: [NSKeyValueChangeKey : Any]?, context context: UnsafeMutableRawPointer?)
    class var accessInstanceVariablesDirectly: Bool { get }
    func value(forKey key: String) -> Any?
    func setValue(_ value: Any?, forKey key: String)
    func validateValue(_ ioValue: AutoreleasingUnsafeMutablePointer<AnyObject?>, forKey inKey: String) throws
    func mutableArrayValue(forKey key: String) -> NSMutableArray
    func mutableOrderedSetValue(forKey key: String) -> NSMutableOrderedSet
    func mutableSetValue(forKey key: String) -> NSMutableSet
    func value(forKeyPath keyPath: String) -> Any?
    func setValue(_ value: Any?, forKeyPath keyPath: String)
    func validateValue(_ ioValue: AutoreleasingUnsafeMutablePointer<AnyObject?>, forKeyPath inKeyPath: String) throws
    func mutableArrayValue(forKeyPath keyPath: String) -> NSMutableArray
    func mutableOrderedSetValue(forKeyPath keyPath: String) -> NSMutableOrderedSet
    func mutableSetValue(forKeyPath keyPath: String) -> NSMutableSet
    func value(forUndefinedKey key: String) -> Any?
    func setValue(_ value: Any?, forUndefinedKey key: String)
    func setNilValueForKey(_ key: String)
    func dictionaryWithValues(forKeys keys: [String]) -> [String : Any]
    func setValuesForKeys(_ keyedValues: [String : Any])
    func fileManager(_ fm: FileManager, shouldProceedAfterError errorInfo: [AnyHashable : Any]) -> Bool
    func fileManager(_ fm: FileManager, willProcessPath path: String)
    func perform(_ aSelector: Selector, with anArgument: Any?, afterDelay delay: TimeInterval, inModes modes: [RunLoopMode])
    func perform(_ aSelector: Selector, with anArgument: Any?, afterDelay delay: TimeInterval)
    class func cancelPreviousPerformRequests(withTarget aTarget: Any, selector aSelector: Selector, object anArgument: Any?)
    class func cancelPreviousPerformRequests(withTarget aTarget: Any)
    func attemptRecovery(fromError error: Error, optionIndex recoveryOptionIndex: Int, delegate delegate: Any?, didRecoverSelector didRecoverSelector: Selector?, contextInfo contextInfo: UnsafeMutableRawPointer?)
    func attemptRecovery(fromError error: Error, optionIndex recoveryOptionIndex: Int) -> Bool
    var autoContentAccessingProxy: Any { get }
    class func version() -> Int
    class func setVersion(_ aVersion: Int)
    var classForCoder: AnyClass { get }
    func awakeAfter(using aDecoder: NSCoder) -> Any?
    func provideImageData(_ data: UnsafeMutableRawPointer, bytesPerRow rowbytes: Int, origin x: Int, _ y: Int, size width: Int, _ height: Int, userInfo info: Any?)
}
extension GKLeaderboard : CVarArg {
}
extension GKLeaderboard : Equatable, Hashable {
    var hashValue: Int { get }
}
extension GKLeaderboard {
    var category: String?
    init?(playerIDs playerIDs: [String]?)
    class func loadCategories(completionHandler completionHandler: (@escaping ([String]?, [String]?, Error?) -> Swift.Void)? = nil)
    class func setDefault(_ leaderboardIdentifier: String?, withCompletionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
}
extension GKLeaderboard {
    func loadImage(completionHandler completionHandler: (@escaping (UIImage?, Error?) -> Swift.Void)? = nil)
}
To
class GKLeaderboard : NSObject {
    var timeScope: GKLeaderboardTimeScope
    var playerScope: GKLeaderboardPlayerScope
    var identifier: String?
    var title: String? { get }
    var range: NSRange
    var scores: [GKScore]? { get }
    var maxRange: Int { get }
    var localPlayerScore: GKScore? { get }
    var isLoading: Bool { get }
    var groupIdentifier: String? { get }
    init()
    init(players players: [GKPlayer])
    func loadScores(completionHandler completionHandler: (([GKScore]?, Error?) -> Swift.Void)? = nil)
    class func loadLeaderboards(completionHandler completionHandler: (([GKLeaderboard]?, Error?) -> Swift.Void)? = nil)
    func loadImage(completionHandler completionHandler: ((UIImage?, Error?) -> Swift.Void)? = nil)
    var category: String?
    init?(playerIDs playerIDs: [String]?)
    class func loadCategories(completionHandler completionHandler: (([String]?, [String]?, Error?) -> Swift.Void)? = nil)
    class func setDefault(_ leaderboardIdentifier: String?, withCompletionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)
    func awakeFromNib()
    func prepareForInterfaceBuilder()
    func accessibilityActivate() -> Bool
    func accessibilityIncrement()
    func accessibilityDecrement()
    func accessibilityScroll(_ direction: UIAccessibilityScrollDirection) -> Bool
    func accessibilityPerformEscape() -> Bool
    func accessibilityPerformMagicTap() -> Bool
    var accessibilityCustomActions: [UIAccessibilityCustomAction]?
    func accessibilityElementDidBecomeFocused()
    func accessibilityElementDidLoseFocus()
    func accessibilityElementIsFocused() -> Bool
    func accessibilityAssistiveTechnologyFocusedIdentifiers() -> Set<String>?
    func accessibilityElementCount() -> Int
    func accessibilityElement(at index: Int) -> Any?
    func index(ofAccessibilityElement element: Any) -> Int
    var accessibilityElements: [Any]?
    var isAccessibilityElement: Bool
    var accessibilityLabel: String?
    var accessibilityHint: String?
    var accessibilityValue: String?
    var accessibilityTraits: UIAccessibilityTraits
    var accessibilityFrame: CGRect
    @NSCopying var accessibilityPath: UIBezierPath?
    var accessibilityActivationPoint: CGPoint
    var accessibilityLanguage: String?
    var accessibilityElementsHidden: Bool
    var accessibilityViewIsModal: Bool
    var shouldGroupAccessibilityChildren: Bool
    var accessibilityNavigationStyle: UIAccessibilityNavigationStyle
    var accessibilityHeaderElements: [Any]?
    var accessibilityCustomRotors: [UIAccessibilityCustomRotor]?
    func performSelector(onMainThread aSelector: Selector, with arg: Any?, waitUntilDone wait: Bool, modes array: [String]?)
    func performSelector(onMainThread aSelector: Selector, with arg: Any?, waitUntilDone wait: Bool)
    func perform(_ aSelector: Selector, on thr: Thread, with arg: Any?, waitUntilDone wait: Bool, modes array: [String]?)
    func perform(_ aSelector: Selector, on thr: Thread, with arg: Any?, waitUntilDone wait: Bool)
    func performSelector(inBackground aSelector: Selector, with arg: Any?)
    class func classForKeyedUnarchiver() -> AnyClass
    var classForKeyedArchiver: AnyClass? { get }
    func replacementObject(for archiver: NSKeyedArchiver) -> Any?
    class func classFallbacksForKeyedArchiver() -> [String]
    class func keyPathsForValuesAffectingValue(forKey key: String) -> Set<String>
    class func automaticallyNotifiesObservers(forKey key: String) -> Bool
    var observationInfo: UnsafeMutableRawPointer?
    func willChangeValue(forKey key: String)
    func didChangeValue(forKey key: String)
    func willChange(_ changeKind: NSKeyValueChange, valuesAt indexes: IndexSet, forKey key: String)
    func didChange(_ changeKind: NSKeyValueChange, valuesAt indexes: IndexSet, forKey key: String)
    func willChangeValue(forKey key: String, withSetMutation mutationKind: NSKeyValueSetMutationKind, using objects: Set<AnyHashable>)
    func didChangeValue(forKey key: String, withSetMutation mutationKind: NSKeyValueSetMutationKind, using objects: Set<AnyHashable>)
    func addObserver(_ observer: NSObject, forKeyPath keyPath: String, options options: NSKeyValueObservingOptions = [], context context: UnsafeMutableRawPointer?)
    func removeObserver(_ observer: NSObject, forKeyPath keyPath: String, context context: UnsafeMutableRawPointer?)
    func removeObserver(_ observer: NSObject, forKeyPath keyPath: String)
    func observeValue(forKeyPath keyPath: String?, of object: Any?, change change: [NSKeyValueChangeKey : Any]?, context context: UnsafeMutableRawPointer?)
    class var accessInstanceVariablesDirectly: Bool { get }
    func value(forKey key: String) -> Any?
    func setValue(_ value: Any?, forKey key: String)
    func validateValue(_ ioValue: AutoreleasingUnsafeMutablePointer<AnyObject?>, forKey inKey: String) throws
    func mutableArrayValue(forKey key: String) -> NSMutableArray
    func mutableOrderedSetValue(forKey key: String) -> NSMutableOrderedSet
    func mutableSetValue(forKey key: String) -> NSMutableSet
    func value(forKeyPath keyPath: String) -> Any?
    func setValue(_ value: Any?, forKeyPath keyPath: String)
    func validateValue(_ ioValue: AutoreleasingUnsafeMutablePointer<AnyObject?>, forKeyPath inKeyPath: String) throws
    func mutableArrayValue(forKeyPath keyPath: String) -> NSMutableArray
    func mutableOrderedSetValue(forKeyPath keyPath: String) -> NSMutableOrderedSet
    func mutableSetValue(forKeyPath keyPath: String) -> NSMutableSet
    func value(forUndefinedKey key: String) -> Any?
    func setValue(_ value: Any?, forUndefinedKey key: String)
    func setNilValueForKey(_ key: String)
    func dictionaryWithValues(forKeys keys: [String]) -> [String : Any]
    func setValuesForKeys(_ keyedValues: [String : Any])
    func fileManager(_ fm: FileManager, shouldProceedAfterError errorInfo: [AnyHashable : Any]) -> Bool
    func fileManager(_ fm: FileManager, willProcessPath path: String)
    func perform(_ aSelector: Selector, with anArgument: Any?, afterDelay delay: TimeInterval, inModes modes: [RunLoopMode])
    func perform(_ aSelector: Selector, with anArgument: Any?, afterDelay delay: TimeInterval)
    class func cancelPreviousPerformRequests(withTarget aTarget: Any, selector aSelector: Selector, object anArgument: Any?)
    class func cancelPreviousPerformRequests(withTarget aTarget: Any)
    func attemptRecovery(fromError error: Error, optionIndex recoveryOptionIndex: Int, delegate delegate: Any?, didRecoverSelector didRecoverSelector: Selector?, contextInfo contextInfo: UnsafeMutableRawPointer?)
    func attemptRecovery(fromError error: Error, optionIndex recoveryOptionIndex: Int) -> Bool
    var autoContentAccessingProxy: Any { get }
    class func version() -> Int
    class func setVersion(_ aVersion: Int)
    var classForCoder: AnyClass { get }
    func awakeAfter(using aDecoder: NSCoder) -> Any?
    func provideImageData(_ data: UnsafeMutableRawPointer, bytesPerRow rowbytes: Int, origin x: Int, _ y: Int, size width: Int, _ height: Int, userInfo info: Any?)
}
extension GKLeaderboard : CVarArg {
}
extension GKLeaderboard : Equatable, Hashable {
    var hashValue: Int { get }
}
extension GKLeaderboard {
    var category: String?
    init?(playerIDs playerIDs: [String]?)
    class func loadCategories(completionHandler completionHandler: (([String]?, [String]?, Error?) -> Swift.Void)? = nil)
    class func setDefault(_ leaderboardIdentifier: String?, withCompletionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)
}
extension GKLeaderboard {
    func loadImage(completionHandler completionHandler: ((UIImage?, Error?) -> Swift.Void)? = nil)
}

Declaration
From
func loadImage(completionHandler completionHandler: (@escaping (UIImage?, Error?) -> Swift.Void)? = nil)
To
func loadImage(completionHandler completionHandler: ((UIImage?, Error?) -> Swift.Void)? = nil)

Declaration
From
class func loadLeaderboards(completionHandler completionHandler: (@escaping ([GKLeaderboard]?, Error?) -> Swift.Void)? = nil)
To
class func loadLeaderboards(completionHandler completionHandler: (([GKLeaderboard]?, Error?) -> Swift.Void)? = nil)

Declaration
From
func loadScores(completionHandler completionHandler: (@escaping ([GKScore]?, Error?) -> Swift.Void)? = nil)
To
func loadScores(completionHandler completionHandler: (([GKScore]?, Error?) -> Swift.Void)? = nil)

Declaration
From
class GKLeaderboardSet : NSObject, NSCoding, NSSecureCoding {
    var title: String { get }
    var groupIdentifier: String? { get }
    var identifier: String?
    class func loadLeaderboardSets(completionHandler completionHandler: (@escaping ([GKLeaderboardSet]?, Error?) -> Swift.Void)? = nil)
    func loadLeaderboards(completionHandler completionHandler: (@escaping ([GKLeaderboard]?, Error?) -> Swift.Void)? = nil)
    func loadImage(completionHandler completionHandler: (@escaping (UIImage?, Error?) -> Swift.Void)? = nil)
    func awakeFromNib()
    func prepareForInterfaceBuilder()
    func accessibilityActivate() -> Bool
    func accessibilityIncrement()
    func accessibilityDecrement()
    func accessibilityScroll(_ direction: UIAccessibilityScrollDirection) -> Bool
    func accessibilityPerformEscape() -> Bool
    func accessibilityPerformMagicTap() -> Bool
    var accessibilityCustomActions: [UIAccessibilityCustomAction]?
    func accessibilityElementDidBecomeFocused()
    func accessibilityElementDidLoseFocus()
    func accessibilityElementIsFocused() -> Bool
    func accessibilityAssistiveTechnologyFocusedIdentifiers() -> Set<String>?
    func accessibilityElementCount() -> Int
    func accessibilityElement(at index: Int) -> Any?
    func index(ofAccessibilityElement element: Any) -> Int
    var accessibilityElements: [Any]?
    var isAccessibilityElement: Bool
    var accessibilityLabel: String?
    var accessibilityHint: String?
    var accessibilityValue: String?
    var accessibilityTraits: UIAccessibilityTraits
    var accessibilityFrame: CGRect
    @NSCopying var accessibilityPath: UIBezierPath?
    var accessibilityActivationPoint: CGPoint
    var accessibilityLanguage: String?
    var accessibilityElementsHidden: Bool
    var accessibilityViewIsModal: Bool
    var shouldGroupAccessibilityChildren: Bool
    var accessibilityNavigationStyle: UIAccessibilityNavigationStyle
    var accessibilityHeaderElements: [Any]?
    var accessibilityCustomRotors: [UIAccessibilityCustomRotor]?
    func performSelector(onMainThread aSelector: Selector, with arg: Any?, waitUntilDone wait: Bool, modes array: [String]?)
    func performSelector(onMainThread aSelector: Selector, with arg: Any?, waitUntilDone wait: Bool)
    func perform(_ aSelector: Selector, on thr: Thread, with arg: Any?, waitUntilDone wait: Bool, modes array: [String]?)
    func perform(_ aSelector: Selector, on thr: Thread, with arg: Any?, waitUntilDone wait: Bool)
    func performSelector(inBackground aSelector: Selector, with arg: Any?)
    class func classForKeyedUnarchiver() -> AnyClass
    var classForKeyedArchiver: AnyClass? { get }
    func replacementObject(for archiver: NSKeyedArchiver) -> Any?
    class func classFallbacksForKeyedArchiver() -> [String]
    class func keyPathsForValuesAffectingValue(forKey key: String) -> Set<String>
    class func automaticallyNotifiesObservers(forKey key: String) -> Bool
    var observationInfo: UnsafeMutableRawPointer?
    func willChangeValue(forKey key: String)
    func didChangeValue(forKey key: String)
    func willChange(_ changeKind: NSKeyValueChange, valuesAt indexes: IndexSet, forKey key: String)
    func didChange(_ changeKind: NSKeyValueChange, valuesAt indexes: IndexSet, forKey key: String)
    func willChangeValue(forKey key: String, withSetMutation mutationKind: NSKeyValueSetMutationKind, using objects: Set<AnyHashable>)
    func didChangeValue(forKey key: String, withSetMutation mutationKind: NSKeyValueSetMutationKind, using objects: Set<AnyHashable>)
    func addObserver(_ observer: NSObject, forKeyPath keyPath: String, options options: NSKeyValueObservingOptions = [], context context: UnsafeMutableRawPointer?)
    func removeObserver(_ observer: NSObject, forKeyPath keyPath: String, context context: UnsafeMutableRawPointer?)
    func removeObserver(_ observer: NSObject, forKeyPath keyPath: String)
    func observeValue(forKeyPath keyPath: String?, of object: Any?, change change: [NSKeyValueChangeKey : Any]?, context context: UnsafeMutableRawPointer?)
    class var accessInstanceVariablesDirectly: Bool { get }
    func value(forKey key: String) -> Any?
    func setValue(_ value: Any?, forKey key: String)
    func validateValue(_ ioValue: AutoreleasingUnsafeMutablePointer<AnyObject?>, forKey inKey: String) throws
    func mutableArrayValue(forKey key: String) -> NSMutableArray
    func mutableOrderedSetValue(forKey key: String) -> NSMutableOrderedSet
    func mutableSetValue(forKey key: String) -> NSMutableSet
    func value(forKeyPath keyPath: String) -> Any?
    func setValue(_ value: Any?, forKeyPath keyPath: String)
    func validateValue(_ ioValue: AutoreleasingUnsafeMutablePointer<AnyObject?>, forKeyPath inKeyPath: String) throws
    func mutableArrayValue(forKeyPath keyPath: String) -> NSMutableArray
    func mutableOrderedSetValue(forKeyPath keyPath: String) -> NSMutableOrderedSet
    func mutableSetValue(forKeyPath keyPath: String) -> NSMutableSet
    func value(forUndefinedKey key: String) -> Any?
    func setValue(_ value: Any?, forUndefinedKey key: String)
    func setNilValueForKey(_ key: String)
    func dictionaryWithValues(forKeys keys: [String]) -> [String : Any]
    func setValuesForKeys(_ keyedValues: [String : Any])
    func fileManager(_ fm: FileManager, shouldProceedAfterError errorInfo: [AnyHashable : Any]) -> Bool
    func fileManager(_ fm: FileManager, willProcessPath path: String)
    func perform(_ aSelector: Selector, with anArgument: Any?, afterDelay delay: TimeInterval, inModes modes: [RunLoopMode])
    func perform(_ aSelector: Selector, with anArgument: Any?, afterDelay delay: TimeInterval)
    class func cancelPreviousPerformRequests(withTarget aTarget: Any, selector aSelector: Selector, object anArgument: Any?)
    class func cancelPreviousPerformRequests(withTarget aTarget: Any)
    func attemptRecovery(fromError error: Error, optionIndex recoveryOptionIndex: Int, delegate delegate: Any?, didRecoverSelector didRecoverSelector: Selector?, contextInfo contextInfo: UnsafeMutableRawPointer?)
    func attemptRecovery(fromError error: Error, optionIndex recoveryOptionIndex: Int) -> Bool
    var autoContentAccessingProxy: Any { get }
    class func version() -> Int
    class func setVersion(_ aVersion: Int)
    var classForCoder: AnyClass { get }
    func awakeAfter(using aDecoder: NSCoder) -> Any?
    func provideImageData(_ data: UnsafeMutableRawPointer, bytesPerRow rowbytes: Int, origin x: Int, _ y: Int, size width: Int, _ height: Int, userInfo info: Any?)
}
extension GKLeaderboardSet : CVarArg {
}
extension GKLeaderboardSet : Equatable, Hashable {
    var hashValue: Int { get }
}
extension GKLeaderboardSet {
    func loadImage(completionHandler completionHandler: (@escaping (UIImage?, Error?) -> Swift.Void)? = nil)
}
To
class GKLeaderboardSet : NSObject, NSCoding, NSSecureCoding {
    var title: String { get }
    var groupIdentifier: String? { get }
    var identifier: String?
    class func loadLeaderboardSets(completionHandler completionHandler: (([GKLeaderboardSet]?, Error?) -> Swift.Void)? = nil)
    func loadLeaderboards(completionHandler completionHandler: (([GKLeaderboard]?, Error?) -> Swift.Void)? = nil)
    func loadImage(completionHandler completionHandler: ((UIImage?, Error?) -> Swift.Void)? = nil)
    func awakeFromNib()
    func prepareForInterfaceBuilder()
    func accessibilityActivate() -> Bool
    func accessibilityIncrement()
    func accessibilityDecrement()
    func accessibilityScroll(_ direction: UIAccessibilityScrollDirection) -> Bool
    func accessibilityPerformEscape() -> Bool
    func accessibilityPerformMagicTap() -> Bool
    var accessibilityCustomActions: [UIAccessibilityCustomAction]?
    func accessibilityElementDidBecomeFocused()
    func accessibilityElementDidLoseFocus()
    func accessibilityElementIsFocused() -> Bool
    func accessibilityAssistiveTechnologyFocusedIdentifiers() -> Set<String>?
    func accessibilityElementCount() -> Int
    func accessibilityElement(at index: Int) -> Any?
    func index(ofAccessibilityElement element: Any) -> Int
    var accessibilityElements: [Any]?
    var isAccessibilityElement: Bool
    var accessibilityLabel: String?
    var accessibilityHint: String?
    var accessibilityValue: String?
    var accessibilityTraits: UIAccessibilityTraits
    var accessibilityFrame: CGRect
    @NSCopying var accessibilityPath: UIBezierPath?
    var accessibilityActivationPoint: CGPoint
    var accessibilityLanguage: String?
    var accessibilityElementsHidden: Bool
    var accessibilityViewIsModal: Bool
    var shouldGroupAccessibilityChildren: Bool
    var accessibilityNavigationStyle: UIAccessibilityNavigationStyle
    var accessibilityHeaderElements: [Any]?
    var accessibilityCustomRotors: [UIAccessibilityCustomRotor]?
    func performSelector(onMainThread aSelector: Selector, with arg: Any?, waitUntilDone wait: Bool, modes array: [String]?)
    func performSelector(onMainThread aSelector: Selector, with arg: Any?, waitUntilDone wait: Bool)
    func perform(_ aSelector: Selector, on thr: Thread, with arg: Any?, waitUntilDone wait: Bool, modes array: [String]?)
    func perform(_ aSelector: Selector, on thr: Thread, with arg: Any?, waitUntilDone wait: Bool)
    func performSelector(inBackground aSelector: Selector, with arg: Any?)
    class func classForKeyedUnarchiver() -> AnyClass
    var classForKeyedArchiver: AnyClass? { get }
    func replacementObject(for archiver: NSKeyedArchiver) -> Any?
    class func classFallbacksForKeyedArchiver() -> [String]
    class func keyPathsForValuesAffectingValue(forKey key: String) -> Set<String>
    class func automaticallyNotifiesObservers(forKey key: String) -> Bool
    var observationInfo: UnsafeMutableRawPointer?
    func willChangeValue(forKey key: String)
    func didChangeValue(forKey key: String)
    func willChange(_ changeKind: NSKeyValueChange, valuesAt indexes: IndexSet, forKey key: String)
    func didChange(_ changeKind: NSKeyValueChange, valuesAt indexes: IndexSet, forKey key: String)
    func willChangeValue(forKey key: String, withSetMutation mutationKind: NSKeyValueSetMutationKind, using objects: Set<AnyHashable>)
    func didChangeValue(forKey key: String, withSetMutation mutationKind: NSKeyValueSetMutationKind, using objects: Set<AnyHashable>)
    func addObserver(_ observer: NSObject, forKeyPath keyPath: String, options options: NSKeyValueObservingOptions = [], context context: UnsafeMutableRawPointer?)
    func removeObserver(_ observer: NSObject, forKeyPath keyPath: String, context context: UnsafeMutableRawPointer?)
    func removeObserver(_ observer: NSObject, forKeyPath keyPath: String)
    func observeValue(forKeyPath keyPath: String?, of object: Any?, change change: [NSKeyValueChangeKey : Any]?, context context: UnsafeMutableRawPointer?)
    class var accessInstanceVariablesDirectly: Bool { get }
    func value(forKey key: String) -> Any?
    func setValue(_ value: Any?, forKey key: String)
    func validateValue(_ ioValue: AutoreleasingUnsafeMutablePointer<AnyObject?>, forKey inKey: String) throws
    func mutableArrayValue(forKey key: String) -> NSMutableArray
    func mutableOrderedSetValue(forKey key: String) -> NSMutableOrderedSet
    func mutableSetValue(forKey key: String) -> NSMutableSet
    func value(forKeyPath keyPath: String) -> Any?
    func setValue(_ value: Any?, forKeyPath keyPath: String)
    func validateValue(_ ioValue: AutoreleasingUnsafeMutablePointer<AnyObject?>, forKeyPath inKeyPath: String) throws
    func mutableArrayValue(forKeyPath keyPath: String) -> NSMutableArray
    func mutableOrderedSetValue(forKeyPath keyPath: String) -> NSMutableOrderedSet
    func mutableSetValue(forKeyPath keyPath: String) -> NSMutableSet
    func value(forUndefinedKey key: String) -> Any?
    func setValue(_ value: Any?, forUndefinedKey key: String)
    func setNilValueForKey(_ key: String)
    func dictionaryWithValues(forKeys keys: [String]) -> [String : Any]
    func setValuesForKeys(_ keyedValues: [String : Any])
    func fileManager(_ fm: FileManager, shouldProceedAfterError errorInfo: [AnyHashable : Any]) -> Bool
    func fileManager(_ fm: FileManager, willProcessPath path: String)
    func perform(_ aSelector: Selector, with anArgument: Any?, afterDelay delay: TimeInterval, inModes modes: [RunLoopMode])
    func perform(_ aSelector: Selector, with anArgument: Any?, afterDelay delay: TimeInterval)
    class func cancelPreviousPerformRequests(withTarget aTarget: Any, selector aSelector: Selector, object anArgument: Any?)
    class func cancelPreviousPerformRequests(withTarget aTarget: Any)
    func attemptRecovery(fromError error: Error, optionIndex recoveryOptionIndex: Int, delegate delegate: Any?, didRecoverSelector didRecoverSelector: Selector?, contextInfo contextInfo: UnsafeMutableRawPointer?)
    func attemptRecovery(fromError error: Error, optionIndex recoveryOptionIndex: Int) -> Bool
    var autoContentAccessingProxy: Any { get }
    class func version() -> Int
    class func setVersion(_ aVersion: Int)
    var classForCoder: AnyClass { get }
    func awakeAfter(using aDecoder: NSCoder) -> Any?
    func provideImageData(_ data: UnsafeMutableRawPointer, bytesPerRow rowbytes: Int, origin x: Int, _ y: Int, size width: Int, _ height: Int, userInfo info: Any?)
}
extension GKLeaderboardSet : CVarArg {
}
extension GKLeaderboardSet : Equatable, Hashable {
    var hashValue: Int { get }
}
extension GKLeaderboardSet {
    func loadImage(completionHandler completionHandler: ((UIImage?, Error?) -> Swift.Void)? = nil)
}

Declaration
From
func loadImage(completionHandler completionHandler: (@escaping (UIImage?, Error?) -> Swift.Void)? = nil)
To
func loadImage(completionHandler completionHandler: ((UIImage?, Error?) -> Swift.Void)? = nil)

Declaration
From
func loadLeaderboards(completionHandler completionHandler: (@escaping ([GKLeaderboard]?, Error?) -> Swift.Void)? = nil)
To
func loadLeaderboards(completionHandler completionHandler: (([GKLeaderboard]?, Error?) -> Swift.Void)? = nil)

Declaration
From
class func loadLeaderboardSets(completionHandler completionHandler: (@escaping ([GKLeaderboardSet]?, Error?) -> Swift.Void)? = nil)
To
class func loadLeaderboardSets(completionHandler completionHandler: (([GKLeaderboardSet]?, Error?) -> Swift.Void)? = nil)

Modified GKLocalPlayer
Declaration
From
class GKLocalPlayer : GKPlayer {
    class func localPlayer() -> GKLocalPlayer
    var isAuthenticated: Bool { get }
    var isUnderage: Bool { get }
    var authenticateHandler: ((UIViewController?, Error?) -> Swift.Void)?
    func loadRecentPlayers(completionHandler completionHandler: (@escaping ([GKPlayer]?, Error?) -> Swift.Void)? = nil)
    func setDefaultLeaderboardIdentifier(_ leaderboardIdentifier: String, completionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
    func loadDefaultLeaderboardIdentifier(completionHandler completionHandler: (@escaping (String?, Error?) -> Swift.Void)? = nil)
    func generateIdentityVerificationSignature(completionHandler completionHandler: (@escaping (URL?, Data?, Data?, UInt64, Error?) -> Swift.Void)? = nil)
    func setDefaultLeaderboardCategoryID(_ categoryID: String?, completionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
    func loadDefaultLeaderboardCategoryID(completionHandler completionHandler: (@escaping (String?, Error?) -> Swift.Void)? = nil)
    func loadFriends(completionHandler completionHandler: (@escaping ([String]?, Error?) -> Swift.Void)? = nil)
    func authenticate(completionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
    var friends: [String]? { get }
    func loadFriendPlayers(completionHandler completionHandler: (@escaping ([GKPlayer]?, Error?) -> Swift.Void)? = nil)
    func register(_ listener: GKLocalPlayerListener)
    func unregisterListener(_ listener: GKLocalPlayerListener)
    func unregisterAllListeners()
    var isFriend: Bool { get }
    func loadPhoto(forSize size: GKPhotoSize, withCompletionHandler completionHandler: (@escaping (UIImage?, Error?) -> Void)? = nil)
}
extension GKLocalPlayer : GKSavedGameListener {
    func fetchSavedGames(completionHandler handler: (@escaping ([GKSavedGame]?, Error?) -> Swift.Void)? = nil)
    func saveGameData(_ data: Data, withName name: String, completionHandler handler: (@escaping (GKSavedGame?, Error?) -> Swift.Void)? = nil)
    func deleteSavedGames(withName name: String, completionHandler handler: (@escaping (Error?) -> Swift.Void)? = nil)
    func resolveConflictingSavedGames(_ conflictingSavedGames: [GKSavedGame], with data: Data, completionHandler handler: (@escaping ([GKSavedGame]?, Error?) -> Swift.Void)? = nil)
}
extension GKLocalPlayer {
    func register(_ listener: GKLocalPlayerListener)
    func unregisterListener(_ listener: GKLocalPlayerListener)
    func unregisterAllListeners()
}
extension GKLocalPlayer {
    func setDefaultLeaderboardCategoryID(_ categoryID: String?, completionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
    func loadDefaultLeaderboardCategoryID(completionHandler completionHandler: (@escaping (String?, Error?) -> Swift.Void)? = nil)
    func loadFriends(completionHandler completionHandler: (@escaping ([String]?, Error?) -> Swift.Void)? = nil)
    func authenticate(completionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
    var friends: [String]? { get }
    func loadFriendPlayers(completionHandler completionHandler: (@escaping ([GKPlayer]?, Error?) -> Swift.Void)? = nil)
}
extension GKLocalPlayer : GKSavedGameListener {
    func fetchSavedGames(completionHandler handler: (@escaping ([GKSavedGame]?, Error?) -> Swift.Void)? = nil)
    func saveGameData(_ data: Data, withName name: String, completionHandler handler: (@escaping (GKSavedGame?, Error?) -> Swift.Void)? = nil)
    func deleteSavedGames(withName name: String, completionHandler handler: (@escaping (Error?) -> Swift.Void)? = nil)
    func resolveConflictingSavedGames(_ conflictingSavedGames: [GKSavedGame], with data: Data, completionHandler handler: (@escaping ([GKSavedGame]?, Error?) -> Swift.Void)? = nil)
}
To
class GKLocalPlayer : GKPlayer {
    class func localPlayer() -> GKLocalPlayer
    var isAuthenticated: Bool { get }
    var isUnderage: Bool { get }
    var authenticateHandler: ((UIViewController?, Error?) -> Swift.Void)?
    func loadRecentPlayers(completionHandler completionHandler: (([GKPlayer]?, Error?) -> Swift.Void)? = nil)
    func setDefaultLeaderboardIdentifier(_ leaderboardIdentifier: String, completionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)
    func loadDefaultLeaderboardIdentifier(completionHandler completionHandler: ((String?, Error?) -> Swift.Void)? = nil)
    func generateIdentityVerificationSignature(completionHandler completionHandler: ((URL?, Data?, Data?, UInt64, Error?) -> Swift.Void)? = nil)
    func setDefaultLeaderboardCategoryID(_ categoryID: String?, completionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)
    func loadDefaultLeaderboardCategoryID(completionHandler completionHandler: ((String?, Error?) -> Swift.Void)? = nil)
    func loadFriends(completionHandler completionHandler: (([String]?, Error?) -> Swift.Void)? = nil)
    func authenticate(completionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)
    var friends: [String]? { get }
    func loadFriendPlayers(completionHandler completionHandler: (([GKPlayer]?, Error?) -> Swift.Void)? = nil)
    func register(_ listener: GKLocalPlayerListener)
    func unregisterListener(_ listener: GKLocalPlayerListener)
    func unregisterAllListeners()
    var isFriend: Bool { get }
    func loadPhoto(forSize size: GKPhotoSize, withCompletionHandler completionHandler: ((UIImage?, Error?) -> Void)? = nil)
}
extension GKLocalPlayer : GKSavedGameListener {
    func fetchSavedGames(completionHandler handler: (([GKSavedGame]?, Error?) -> Swift.Void)? = nil)
    func saveGameData(_ data: Data, withName name: String, completionHandler handler: ((GKSavedGame?, Error?) -> Swift.Void)? = nil)
    func deleteSavedGames(withName name: String, completionHandler handler: ((Error?) -> Swift.Void)? = nil)
    func resolveConflictingSavedGames(_ conflictingSavedGames: [GKSavedGame], with data: Data, completionHandler handler: (([GKSavedGame]?, Error?) -> Swift.Void)? = nil)
}
extension GKLocalPlayer {
    func register(_ listener: GKLocalPlayerListener)
    func unregisterListener(_ listener: GKLocalPlayerListener)
    func unregisterAllListeners()
}
extension GKLocalPlayer {
    func setDefaultLeaderboardCategoryID(_ categoryID: String?, completionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)
    func loadDefaultLeaderboardCategoryID(completionHandler completionHandler: ((String?, Error?) -> Swift.Void)? = nil)
    func loadFriends(completionHandler completionHandler: (([String]?, Error?) -> Swift.Void)? = nil)
    func authenticate(completionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)
    var friends: [String]? { get }
    func loadFriendPlayers(completionHandler completionHandler: (([GKPlayer]?, Error?) -> Swift.Void)? = nil)
}
extension GKLocalPlayer : GKSavedGameListener {
    func fetchSavedGames(completionHandler handler: (([GKSavedGame]?, Error?) -> Swift.Void)? = nil)
    func saveGameData(_ data: Data, withName name: String, completionHandler handler: ((GKSavedGame?, Error?) -> Swift.Void)? = nil)
    func deleteSavedGames(withName name: String, completionHandler handler: ((Error?) -> Swift.Void)? = nil)
    func resolveConflictingSavedGames(_ conflictingSavedGames: [GKSavedGame], with data: Data, completionHandler handler: (([GKSavedGame]?, Error?) -> Swift.Void)? = nil)
}

Declaration
From
func deleteSavedGames(withName name: String, completionHandler handler: (@escaping (Error?) -> Swift.Void)? = nil)
To
func deleteSavedGames(withName name: String, completionHandler handler: ((Error?) -> Swift.Void)? = nil)

Declaration
From
func fetchSavedGames(completionHandler handler: (@escaping ([GKSavedGame]?, Error?) -> Swift.Void)? = nil)
To
func fetchSavedGames(completionHandler handler: (([GKSavedGame]?, Error?) -> Swift.Void)? = nil)

Declaration
From
func generateIdentityVerificationSignature(completionHandler completionHandler: (@escaping (URL?, Data?, Data?, UInt64, Error?) -> Swift.Void)? = nil)
To
func generateIdentityVerificationSignature(completionHandler completionHandler: ((URL?, Data?, Data?, UInt64, Error?) -> Swift.Void)? = nil)

Declaration
From
func loadDefaultLeaderboardIdentifier(completionHandler completionHandler: (@escaping (String?, Error?) -> Swift.Void)? = nil)
To
func loadDefaultLeaderboardIdentifier(completionHandler completionHandler: ((String?, Error?) -> Swift.Void)? = nil)

Declaration
From
func loadFriendPlayers(completionHandler completionHandler: (@escaping ([GKPlayer]?, Error?) -> Swift.Void)? = nil)
To
func loadFriendPlayers(completionHandler completionHandler: (([GKPlayer]?, Error?) -> Swift.Void)? = nil)

Declaration
From
func loadFriends(completionHandler completionHandler: (@escaping ([String]?, Error?) -> Swift.Void)? = nil)
To
func loadFriends(completionHandler completionHandler: (([String]?, Error?) -> Swift.Void)? = nil)

Declaration
From
func loadRecentPlayers(completionHandler completionHandler: (@escaping ([GKPlayer]?, Error?) -> Swift.Void)? = nil)
To
func loadRecentPlayers(completionHandler completionHandler: (([GKPlayer]?, Error?) -> Swift.Void)? = nil)

Declaration
From
func resolveConflictingSavedGames(_ conflictingSavedGames: [GKSavedGame], with data: Data, completionHandler handler: (@escaping ([GKSavedGame]?, Error?) -> Swift.Void)? = nil)
To
func resolveConflictingSavedGames(_ conflictingSavedGames: [GKSavedGame], with data: Data, completionHandler handler: (([GKSavedGame]?, Error?) -> Swift.Void)? = nil)

Declaration
From
func saveGameData(_ data: Data, withName name: String, completionHandler handler: (@escaping (GKSavedGame?, Error?) -> Swift.Void)? = nil)
To
func saveGameData(_ data: Data, withName name: String, completionHandler handler: ((GKSavedGame?, Error?) -> Swift.Void)? = nil)

Declaration
From
func setDefaultLeaderboardIdentifier(_ leaderboardIdentifier: String, completionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
To
func setDefaultLeaderboardIdentifier(_ leaderboardIdentifier: String, completionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)

Modified GKMatch
Declaration
From
class GKMatch : NSObject {
    var players: [GKPlayer] { get }
    unowned(unsafe) var delegate: GKMatchDelegate?
    var expectedPlayerCount: Int { get }
    func send(_ data: Data, to players: [GKPlayer], dataMode mode: GKMatchSendDataMode) throws
    func sendData(toAllPlayers data: Data, with mode: GKMatchSendDataMode) throws
    func disconnect()
    func voiceChat(withName name: String) -> GKVoiceChat?
    func chooseBestHostingPlayer(completionHandler completionHandler: @escaping (GKPlayer?) -> Swift.Void)
    func rematch(completionHandler completionHandler: (@escaping (GKMatch?, Error?) -> Swift.Void)? = nil)
    func chooseBestHostPlayer(completionHandler completionHandler: @escaping (String?) -> Swift.Void)
    func send(_ data: Data, toPlayers playerIDs: [String], with mode: GKMatchSendDataMode) throws
    var playerIDs: [String] { get }
    func awakeFromNib()
    func prepareForInterfaceBuilder()
    func accessibilityActivate() -> Bool
    func accessibilityIncrement()
    func accessibilityDecrement()
    func accessibilityScroll(_ direction: UIAccessibilityScrollDirection) -> Bool
    func accessibilityPerformEscape() -> Bool
    func accessibilityPerformMagicTap() -> Bool
    var accessibilityCustomActions: [UIAccessibilityCustomAction]?
    func accessibilityElementDidBecomeFocused()
    func accessibilityElementDidLoseFocus()
    func accessibilityElementIsFocused() -> Bool
    func accessibilityAssistiveTechnologyFocusedIdentifiers() -> Set<String>?
    func accessibilityElementCount() -> Int
    func accessibilityElement(at index: Int) -> Any?
    func index(ofAccessibilityElement element: Any) -> Int
    var accessibilityElements: [Any]?
    var isAccessibilityElement: Bool
    var accessibilityLabel: String?
    var accessibilityHint: String?
    var accessibilityValue: String?
    var accessibilityTraits: UIAccessibilityTraits
    var accessibilityFrame: CGRect
    @NSCopying var accessibilityPath: UIBezierPath?
    var accessibilityActivationPoint: CGPoint
    var accessibilityLanguage: String?
    var accessibilityElementsHidden: Bool
    var accessibilityViewIsModal: Bool
    var shouldGroupAccessibilityChildren: Bool
    var accessibilityNavigationStyle: UIAccessibilityNavigationStyle
    var accessibilityHeaderElements: [Any]?
    var accessibilityCustomRotors: [UIAccessibilityCustomRotor]?
    func performSelector(onMainThread aSelector: Selector, with arg: Any?, waitUntilDone wait: Bool, modes array: [String]?)
    func performSelector(onMainThread aSelector: Selector, with arg: Any?, waitUntilDone wait: Bool)
    func perform(_ aSelector: Selector, on thr: Thread, with arg: Any?, waitUntilDone wait: Bool, modes array: [String]?)
    func perform(_ aSelector: Selector, on thr: Thread, with arg: Any?, waitUntilDone wait: Bool)
    func performSelector(inBackground aSelector: Selector, with arg: Any?)
    class func classForKeyedUnarchiver() -> AnyClass
    var classForKeyedArchiver: AnyClass? { get }
    func replacementObject(for archiver: NSKeyedArchiver) -> Any?
    class func classFallbacksForKeyedArchiver() -> [String]
    class func keyPathsForValuesAffectingValue(forKey key: String) -> Set<String>
    class func automaticallyNotifiesObservers(forKey key: String) -> Bool
    var observationInfo: UnsafeMutableRawPointer?
    func willChangeValue(forKey key: String)
    func didChangeValue(forKey key: String)
    func willChange(_ changeKind: NSKeyValueChange, valuesAt indexes: IndexSet, forKey key: String)
    func didChange(_ changeKind: NSKeyValueChange, valuesAt indexes: IndexSet, forKey key: String)
    func willChangeValue(forKey key: String, withSetMutation mutationKind: NSKeyValueSetMutationKind, using objects: Set<AnyHashable>)
    func didChangeValue(forKey key: String, withSetMutation mutationKind: NSKeyValueSetMutationKind, using objects: Set<AnyHashable>)
    func addObserver(_ observer: NSObject, forKeyPath keyPath: String, options options: NSKeyValueObservingOptions = [], context context: UnsafeMutableRawPointer?)
    func removeObserver(_ observer: NSObject, forKeyPath keyPath: String, context context: UnsafeMutableRawPointer?)
    func removeObserver(_ observer: NSObject, forKeyPath keyPath: String)
    func observeValue(forKeyPath keyPath: String?, of object: Any?, change change: [NSKeyValueChangeKey : Any]?, context context: UnsafeMutableRawPointer?)
    class var accessInstanceVariablesDirectly: Bool { get }
    func value(forKey key: String) -> Any?
    func setValue(_ value: Any?, forKey key: String)
    func validateValue(_ ioValue: AutoreleasingUnsafeMutablePointer<AnyObject?>, forKey inKey: String) throws
    func mutableArrayValue(forKey key: String) -> NSMutableArray
    func mutableOrderedSetValue(forKey key: String) -> NSMutableOrderedSet
    func mutableSetValue(forKey key: String) -> NSMutableSet
    func value(forKeyPath keyPath: String) -> Any?
    func setValue(_ value: Any?, forKeyPath keyPath: String)
    func validateValue(_ ioValue: AutoreleasingUnsafeMutablePointer<AnyObject?>, forKeyPath inKeyPath: String) throws
    func mutableArrayValue(forKeyPath keyPath: String) -> NSMutableArray
    func mutableOrderedSetValue(forKeyPath keyPath: String) -> NSMutableOrderedSet
    func mutableSetValue(forKeyPath keyPath: String) -> NSMutableSet
    func value(forUndefinedKey key: String) -> Any?
    func setValue(_ value: Any?, forUndefinedKey key: String)
    func setNilValueForKey(_ key: String)
    func dictionaryWithValues(forKeys keys: [String]) -> [String : Any]
    func setValuesForKeys(_ keyedValues: [String : Any])
    func fileManager(_ fm: FileManager, shouldProceedAfterError errorInfo: [AnyHashable : Any]) -> Bool
    func fileManager(_ fm: FileManager, willProcessPath path: String)
    func perform(_ aSelector: Selector, with anArgument: Any?, afterDelay delay: TimeInterval, inModes modes: [RunLoopMode])
    func perform(_ aSelector: Selector, with anArgument: Any?, afterDelay delay: TimeInterval)
    class func cancelPreviousPerformRequests(withTarget aTarget: Any, selector aSelector: Selector, object anArgument: Any?)
    class func cancelPreviousPerformRequests(withTarget aTarget: Any)
    func attemptRecovery(fromError error: Error, optionIndex recoveryOptionIndex: Int, delegate delegate: Any?, didRecoverSelector didRecoverSelector: Selector?, contextInfo contextInfo: UnsafeMutableRawPointer?)
    func attemptRecovery(fromError error: Error, optionIndex recoveryOptionIndex: Int) -> Bool
    var autoContentAccessingProxy: Any { get }
    class func version() -> Int
    class func setVersion(_ aVersion: Int)
    var classForCoder: AnyClass { get }
    func awakeAfter(using aDecoder: NSCoder) -> Any?
    func provideImageData(_ data: UnsafeMutableRawPointer, bytesPerRow rowbytes: Int, origin x: Int, _ y: Int, size width: Int, _ height: Int, userInfo info: Any?)
}
extension GKMatch : CVarArg {
}
extension GKMatch : Equatable, Hashable {
    var hashValue: Int { get }
}
extension GKMatch {
    func chooseBestHostPlayer(completionHandler completionHandler: @escaping (String?) -> Swift.Void)
    func send(_ data: Data, toPlayers playerIDs: [String], with mode: GKMatchSendDataMode) throws
    var playerIDs: [String] { get }
}
To
class GKMatch : NSObject {
    var players: [GKPlayer] { get }
    unowned(unsafe) var delegate: GKMatchDelegate?
    var expectedPlayerCount: Int { get }
    func send(_ data: Data, to players: [GKPlayer], dataMode mode: GKMatchSendDataMode) throws
    func sendData(toAllPlayers data: Data, with mode: GKMatchSendDataMode) throws
    func disconnect()
    func voiceChat(withName name: String) -> GKVoiceChat?
    func chooseBestHostingPlayer(completionHandler completionHandler: @escaping (GKPlayer?) -> Swift.Void)
    func rematch(completionHandler completionHandler: ((GKMatch?, Error?) -> Swift.Void)? = nil)
    func chooseBestHostPlayer(completionHandler completionHandler: @escaping (String?) -> Swift.Void)
    func send(_ data: Data, toPlayers playerIDs: [String], with mode: GKMatchSendDataMode) throws
    var playerIDs: [String] { get }
    func awakeFromNib()
    func prepareForInterfaceBuilder()
    func accessibilityActivate() -> Bool
    func accessibilityIncrement()
    func accessibilityDecrement()
    func accessibilityScroll(_ direction: UIAccessibilityScrollDirection) -> Bool
    func accessibilityPerformEscape() -> Bool
    func accessibilityPerformMagicTap() -> Bool
    var accessibilityCustomActions: [UIAccessibilityCustomAction]?
    func accessibilityElementDidBecomeFocused()
    func accessibilityElementDidLoseFocus()
    func accessibilityElementIsFocused() -> Bool
    func accessibilityAssistiveTechnologyFocusedIdentifiers() -> Set<String>?
    func accessibilityElementCount() -> Int
    func accessibilityElement(at index: Int) -> Any?
    func index(ofAccessibilityElement element: Any) -> Int
    var accessibilityElements: [Any]?
    var isAccessibilityElement: Bool
    var accessibilityLabel: String?
    var accessibilityHint: String?
    var accessibilityValue: String?
    var accessibilityTraits: UIAccessibilityTraits
    var accessibilityFrame: CGRect
    @NSCopying var accessibilityPath: UIBezierPath?
    var accessibilityActivationPoint: CGPoint
    var accessibilityLanguage: String?
    var accessibilityElementsHidden: Bool
    var accessibilityViewIsModal: Bool
    var shouldGroupAccessibilityChildren: Bool
    var accessibilityNavigationStyle: UIAccessibilityNavigationStyle
    var accessibilityHeaderElements: [Any]?
    var accessibilityCustomRotors: [UIAccessibilityCustomRotor]?
    func performSelector(onMainThread aSelector: Selector, with arg: Any?, waitUntilDone wait: Bool, modes array: [String]?)
    func performSelector(onMainThread aSelector: Selector, with arg: Any?, waitUntilDone wait: Bool)
    func perform(_ aSelector: Selector, on thr: Thread, with arg: Any?, waitUntilDone wait: Bool, modes array: [String]?)
    func perform(_ aSelector: Selector, on thr: Thread, with arg: Any?, waitUntilDone wait: Bool)
    func performSelector(inBackground aSelector: Selector, with arg: Any?)
    class func classForKeyedUnarchiver() -> AnyClass
    var classForKeyedArchiver: AnyClass? { get }
    func replacementObject(for archiver: NSKeyedArchiver) -> Any?
    class func classFallbacksForKeyedArchiver() -> [String]
    class func keyPathsForValuesAffectingValue(forKey key: String) -> Set<String>
    class func automaticallyNotifiesObservers(forKey key: String) -> Bool
    var observationInfo: UnsafeMutableRawPointer?
    func willChangeValue(forKey key: String)
    func didChangeValue(forKey key: String)
    func willChange(_ changeKind: NSKeyValueChange, valuesAt indexes: IndexSet, forKey key: String)
    func didChange(_ changeKind: NSKeyValueChange, valuesAt indexes: IndexSet, forKey key: String)
    func willChangeValue(forKey key: String, withSetMutation mutationKind: NSKeyValueSetMutationKind, using objects: Set<AnyHashable>)
    func didChangeValue(forKey key: String, withSetMutation mutationKind: NSKeyValueSetMutationKind, using objects: Set<AnyHashable>)
    func addObserver(_ observer: NSObject, forKeyPath keyPath: String, options options: NSKeyValueObservingOptions = [], context context: UnsafeMutableRawPointer?)
    func removeObserver(_ observer: NSObject, forKeyPath keyPath: String, context context: UnsafeMutableRawPointer?)
    func removeObserver(_ observer: NSObject, forKeyPath keyPath: String)
    func observeValue(forKeyPath keyPath: String?, of object: Any?, change change: [NSKeyValueChangeKey : Any]?, context context: UnsafeMutableRawPointer?)
    class var accessInstanceVariablesDirectly: Bool { get }
    func value(forKey key: String) -> Any?
    func setValue(_ value: Any?, forKey key: String)
    func validateValue(_ ioValue: AutoreleasingUnsafeMutablePointer<AnyObject?>, forKey inKey: String) throws
    func mutableArrayValue(forKey key: String) -> NSMutableArray
    func mutableOrderedSetValue(forKey key: String) -> NSMutableOrderedSet
    func mutableSetValue(forKey key: String) -> NSMutableSet
    func value(forKeyPath keyPath: String) -> Any?
    func setValue(_ value: Any?, forKeyPath keyPath: String)
    func validateValue(_ ioValue: AutoreleasingUnsafeMutablePointer<AnyObject?>, forKeyPath inKeyPath: String) throws
    func mutableArrayValue(forKeyPath keyPath: String) -> NSMutableArray
    func mutableOrderedSetValue(forKeyPath keyPath: String) -> NSMutableOrderedSet
    func mutableSetValue(forKeyPath keyPath: String) -> NSMutableSet
    func value(forUndefinedKey key: String) -> Any?
    func setValue(_ value: Any?, forUndefinedKey key: String)
    func setNilValueForKey(_ key: String)
    func dictionaryWithValues(forKeys keys: [String]) -> [String : Any]
    func setValuesForKeys(_ keyedValues: [String : Any])
    func fileManager(_ fm: FileManager, shouldProceedAfterError errorInfo: [AnyHashable : Any]) -> Bool
    func fileManager(_ fm: FileManager, willProcessPath path: String)
    func perform(_ aSelector: Selector, with anArgument: Any?, afterDelay delay: TimeInterval, inModes modes: [RunLoopMode])
    func perform(_ aSelector: Selector, with anArgument: Any?, afterDelay delay: TimeInterval)
    class func cancelPreviousPerformRequests(withTarget aTarget: Any, selector aSelector: Selector, object anArgument: Any?)
    class func cancelPreviousPerformRequests(withTarget aTarget: Any)
    func attemptRecovery(fromError error: Error, optionIndex recoveryOptionIndex: Int, delegate delegate: Any?, didRecoverSelector didRecoverSelector: Selector?, contextInfo contextInfo: UnsafeMutableRawPointer?)
    func attemptRecovery(fromError error: Error, optionIndex recoveryOptionIndex: Int) -> Bool
    var autoContentAccessingProxy: Any { get }
    class func version() -> Int
    class func setVersion(_ aVersion: Int)
    var classForCoder: AnyClass { get }
    func awakeAfter(using aDecoder: NSCoder) -> Any?
    func provideImageData(_ data: UnsafeMutableRawPointer, bytesPerRow rowbytes: Int, origin x: Int, _ y: Int, size width: Int, _ height: Int, userInfo info: Any?)
}
extension GKMatch : CVarArg {
}
extension GKMatch : Equatable, Hashable {
    var hashValue: Int { get }
}
extension GKMatch {
    func chooseBestHostPlayer(completionHandler completionHandler: @escaping (String?) -> Swift.Void)
    func send(_ data: Data, toPlayers playerIDs: [String], with mode: GKMatchSendDataMode) throws
    var playerIDs: [String] { get }
}

Declaration
From
func rematch(completionHandler completionHandler: (@escaping (GKMatch?, Error?) -> Swift.Void)? = nil)
To
func rematch(completionHandler completionHandler: ((GKMatch?, Error?) -> Swift.Void)? = nil)

Modified GKMatchmaker
Declaration
From
class GKMatchmaker : NSObject {
    class func shared() -> GKMatchmaker
    func match(for invite: GKInvite, completionHandler completionHandler: (@escaping (GKMatch?, Error?) -> Swift.Void)? = nil)
    func findMatch(for request: GKMatchRequest, withCompletionHandler completionHandler: (@escaping (GKMatch?, Error?) -> Swift.Void)? = nil)
    func findPlayers(forHostedRequest request: GKMatchRequest, withCompletionHandler completionHandler: (@escaping ([GKPlayer]?, Error?) -> Swift.Void)? = nil)
    func addPlayers(to match: GKMatch, matchRequest matchRequest: GKMatchRequest, completionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
    func cancel()
    func cancelPendingInvite(to player: GKPlayer)
    func finishMatchmaking(for match: GKMatch)
    func queryPlayerGroupActivity(_ playerGroup: Int, withCompletionHandler completionHandler: (@escaping (Int, Error?) -> Swift.Void)? = nil)
    func queryActivity(completionHandler completionHandler: (@escaping (Int, Error?) -> Swift.Void)? = nil)
    func startBrowsingForNearbyPlayers(handler reachableHandler: (@escaping (GKPlayer, Bool) -> Swift.Void)? = nil)
    func stopBrowsingForNearbyPlayers()
    var inviteHandler: ((GKInvite, [Any]?) -> Swift.Void)?
    func startBrowsingForNearbyPlayers(reachableHandler reachableHandler: (@escaping (String, Bool) -> Swift.Void)? = nil)
    func cancelInvite(toPlayer playerID: String)
    func findPlayers(forHostedMatchRequest request: GKMatchRequest, withCompletionHandler completionHandler: (@escaping ([String]?, Error?) -> Swift.Void)? = nil)
    func awakeFromNib()
    func prepareForInterfaceBuilder()
    func accessibilityActivate() -> Bool
    func accessibilityIncrement()
    func accessibilityDecrement()
    func accessibilityScroll(_ direction: UIAccessibilityScrollDirection) -> Bool
    func accessibilityPerformEscape() -> Bool
    func accessibilityPerformMagicTap() -> Bool
    var accessibilityCustomActions: [UIAccessibilityCustomAction]?
    func accessibilityElementDidBecomeFocused()
    func accessibilityElementDidLoseFocus()
    func accessibilityElementIsFocused() -> Bool
    func accessibilityAssistiveTechnologyFocusedIdentifiers() -> Set<String>?
    func accessibilityElementCount() -> Int
    func accessibilityElement(at index: Int) -> Any?
    func index(ofAccessibilityElement element: Any) -> Int
    var accessibilityElements: [Any]?
    var isAccessibilityElement: Bool
    var accessibilityLabel: String?
    var accessibilityHint: String?
    var accessibilityValue: String?
    var accessibilityTraits: UIAccessibilityTraits
    var accessibilityFrame: CGRect
    @NSCopying var accessibilityPath: UIBezierPath?
    var accessibilityActivationPoint: CGPoint
    var accessibilityLanguage: String?
    var accessibilityElementsHidden: Bool
    var accessibilityViewIsModal: Bool
    var shouldGroupAccessibilityChildren: Bool
    var accessibilityNavigationStyle: UIAccessibilityNavigationStyle
    var accessibilityHeaderElements: [Any]?
    var accessibilityCustomRotors: [UIAccessibilityCustomRotor]?
    func performSelector(onMainThread aSelector: Selector, with arg: Any?, waitUntilDone wait: Bool, modes array: [String]?)
    func performSelector(onMainThread aSelector: Selector, with arg: Any?, waitUntilDone wait: Bool)
    func perform(_ aSelector: Selector, on thr: Thread, with arg: Any?, waitUntilDone wait: Bool, modes array: [String]?)
    func perform(_ aSelector: Selector, on thr: Thread, with arg: Any?, waitUntilDone wait: Bool)
    func performSelector(inBackground aSelector: Selector, with arg: Any?)
    class func classForKeyedUnarchiver() -> AnyClass
    var classForKeyedArchiver: AnyClass? { get }
    func replacementObject(for archiver: NSKeyedArchiver) -> Any?
    class func classFallbacksForKeyedArchiver() -> [String]
    class func keyPathsForValuesAffectingValue(forKey key: String) -> Set<String>
    class func automaticallyNotifiesObservers(forKey key: String) -> Bool
    var observationInfo: UnsafeMutableRawPointer?
    func willChangeValue(forKey key: String)
    func didChangeValue(forKey key: String)
    func willChange(_ changeKind: NSKeyValueChange, valuesAt indexes: IndexSet, forKey key: String)
    func didChange(_ changeKind: NSKeyValueChange, valuesAt indexes: IndexSet, forKey key: String)
    func willChangeValue(forKey key: String, withSetMutation mutationKind: NSKeyValueSetMutationKind, using objects: Set<AnyHashable>)
    func didChangeValue(forKey key: String, withSetMutation mutationKind: NSKeyValueSetMutationKind, using objects: Set<AnyHashable>)
    func addObserver(_ observer: NSObject, forKeyPath keyPath: String, options options: NSKeyValueObservingOptions = [], context context: UnsafeMutableRawPointer?)
    func removeObserver(_ observer: NSObject, forKeyPath keyPath: String, context context: UnsafeMutableRawPointer?)
    func removeObserver(_ observer: NSObject, forKeyPath keyPath: String)
    func observeValue(forKeyPath keyPath: String?, of object: Any?, change change: [NSKeyValueChangeKey : Any]?, context context: UnsafeMutableRawPointer?)
    class var accessInstanceVariablesDirectly: Bool { get }
    func value(forKey key: String) -> Any?
    func setValue(_ value: Any?, forKey key: String)
    func validateValue(_ ioValue: AutoreleasingUnsafeMutablePointer<AnyObject?>, forKey inKey: String) throws
    func mutableArrayValue(forKey key: String) -> NSMutableArray
    func mutableOrderedSetValue(forKey key: String) -> NSMutableOrderedSet
    func mutableSetValue(forKey key: String) -> NSMutableSet
    func value(forKeyPath keyPath: String) -> Any?
    func setValue(_ value: Any?, forKeyPath keyPath: String)
    func validateValue(_ ioValue: AutoreleasingUnsafeMutablePointer<AnyObject?>, forKeyPath inKeyPath: String) throws
    func mutableArrayValue(forKeyPath keyPath: String) -> NSMutableArray
    func mutableOrderedSetValue(forKeyPath keyPath: String) -> NSMutableOrderedSet
    func mutableSetValue(forKeyPath keyPath: String) -> NSMutableSet
    func value(forUndefinedKey key: String) -> Any?
    func setValue(_ value: Any?, forUndefinedKey key: String)
    func setNilValueForKey(_ key: String)
    func dictionaryWithValues(forKeys keys: [String]) -> [String : Any]
    func setValuesForKeys(_ keyedValues: [String : Any])
    func fileManager(_ fm: FileManager, shouldProceedAfterError errorInfo: [AnyHashable : Any]) -> Bool
    func fileManager(_ fm: FileManager, willProcessPath path: String)
    func perform(_ aSelector: Selector, with anArgument: Any?, afterDelay delay: TimeInterval, inModes modes: [RunLoopMode])
    func perform(_ aSelector: Selector, with anArgument: Any?, afterDelay delay: TimeInterval)
    class func cancelPreviousPerformRequests(withTarget aTarget: Any, selector aSelector: Selector, object anArgument: Any?)
    class func cancelPreviousPerformRequests(withTarget aTarget: Any)
    func attemptRecovery(fromError error: Error, optionIndex recoveryOptionIndex: Int, delegate delegate: Any?, didRecoverSelector didRecoverSelector: Selector?, contextInfo contextInfo: UnsafeMutableRawPointer?)
    func attemptRecovery(fromError error: Error, optionIndex recoveryOptionIndex: Int) -> Bool
    var autoContentAccessingProxy: Any { get }
    class func version() -> Int
    class func setVersion(_ aVersion: Int)
    var classForCoder: AnyClass { get }
    func awakeAfter(using aDecoder: NSCoder) -> Any?
    func provideImageData(_ data: UnsafeMutableRawPointer, bytesPerRow rowbytes: Int, origin x: Int, _ y: Int, size width: Int, _ height: Int, userInfo info: Any?)
}
extension GKMatchmaker : CVarArg {
}
extension GKMatchmaker : Equatable, Hashable {
    var hashValue: Int { get }
}
extension GKMatchmaker {
    var inviteHandler: ((GKInvite, [Any]?) -> Swift.Void)?
    func startBrowsingForNearbyPlayers(reachableHandler reachableHandler: (@escaping (String, Bool) -> Swift.Void)? = nil)
    func cancelInvite(toPlayer playerID: String)
    func findPlayers(forHostedMatchRequest request: GKMatchRequest, withCompletionHandler completionHandler: (@escaping ([String]?, Error?) -> Swift.Void)? = nil)
}
To
class GKMatchmaker : NSObject {
    class func shared() -> GKMatchmaker
    func match(for invite: GKInvite, completionHandler completionHandler: ((GKMatch?, Error?) -> Swift.Void)? = nil)
    func findMatch(for request: GKMatchRequest, withCompletionHandler completionHandler: ((GKMatch?, Error?) -> Swift.Void)? = nil)
    func findPlayers(forHostedRequest request: GKMatchRequest, withCompletionHandler completionHandler: (([GKPlayer]?, Error?) -> Swift.Void)? = nil)
    func addPlayers(to match: GKMatch, matchRequest matchRequest: GKMatchRequest, completionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)
    func cancel()
    func cancelPendingInvite(to player: GKPlayer)
    func finishMatchmaking(for match: GKMatch)
    func queryPlayerGroupActivity(_ playerGroup: Int, withCompletionHandler completionHandler: ((Int, Error?) -> Swift.Void)? = nil)
    func queryActivity(completionHandler completionHandler: ((Int, Error?) -> Swift.Void)? = nil)
    func startBrowsingForNearbyPlayers(handler reachableHandler: ((GKPlayer, Bool) -> Swift.Void)? = nil)
    func stopBrowsingForNearbyPlayers()
    var inviteHandler: ((GKInvite, [Any]?) -> Swift.Void)?
    func startBrowsingForNearbyPlayers(reachableHandler reachableHandler: ((String, Bool) -> Swift.Void)? = nil)
    func cancelInvite(toPlayer playerID: String)
    func findPlayers(forHostedMatchRequest request: GKMatchRequest, withCompletionHandler completionHandler: (([String]?, Error?) -> Swift.Void)? = nil)
    func awakeFromNib()
    func prepareForInterfaceBuilder()
    func accessibilityActivate() -> Bool
    func accessibilityIncrement()
    func accessibilityDecrement()
    func accessibilityScroll(_ direction: UIAccessibilityScrollDirection) -> Bool
    func accessibilityPerformEscape() -> Bool
    func accessibilityPerformMagicTap() -> Bool
    var accessibilityCustomActions: [UIAccessibilityCustomAction]?
    func accessibilityElementDidBecomeFocused()
    func accessibilityElementDidLoseFocus()
    func accessibilityElementIsFocused() -> Bool
    func accessibilityAssistiveTechnologyFocusedIdentifiers() -> Set<String>?
    func accessibilityElementCount() -> Int
    func accessibilityElement(at index: Int) -> Any?
    func index(ofAccessibilityElement element: Any) -> Int
    var accessibilityElements: [Any]?
    var isAccessibilityElement: Bool
    var accessibilityLabel: String?
    var accessibilityHint: String?
    var accessibilityValue: String?
    var accessibilityTraits: UIAccessibilityTraits
    var accessibilityFrame: CGRect
    @NSCopying var accessibilityPath: UIBezierPath?
    var accessibilityActivationPoint: CGPoint
    var accessibilityLanguage: String?
    var accessibilityElementsHidden: Bool
    var accessibilityViewIsModal: Bool
    var shouldGroupAccessibilityChildren: Bool
    var accessibilityNavigationStyle: UIAccessibilityNavigationStyle
    var accessibilityHeaderElements: [Any]?
    var accessibilityCustomRotors: [UIAccessibilityCustomRotor]?
    func performSelector(onMainThread aSelector: Selector, with arg: Any?, waitUntilDone wait: Bool, modes array: [String]?)
    func performSelector(onMainThread aSelector: Selector, with arg: Any?, waitUntilDone wait: Bool)
    func perform(_ aSelector: Selector, on thr: Thread, with arg: Any?, waitUntilDone wait: Bool, modes array: [String]?)
    func perform(_ aSelector: Selector, on thr: Thread, with arg: Any?, waitUntilDone wait: Bool)
    func performSelector(inBackground aSelector: Selector, with arg: Any?)
    class func classForKeyedUnarchiver() -> AnyClass
    var classForKeyedArchiver: AnyClass? { get }
    func replacementObject(for archiver: NSKeyedArchiver) -> Any?
    class func classFallbacksForKeyedArchiver() -> [String]
    class func keyPathsForValuesAffectingValue(forKey key: String) -> Set<String>
    class func automaticallyNotifiesObservers(forKey key: String) -> Bool
    var observationInfo: UnsafeMutableRawPointer?
    func willChangeValue(forKey key: String)
    func didChangeValue(forKey key: String)
    func willChange(_ changeKind: NSKeyValueChange, valuesAt indexes: IndexSet, forKey key: String)
    func didChange(_ changeKind: NSKeyValueChange, valuesAt indexes: IndexSet, forKey key: String)
    func willChangeValue(forKey key: String, withSetMutation mutationKind: NSKeyValueSetMutationKind, using objects: Set<AnyHashable>)
    func didChangeValue(forKey key: String, withSetMutation mutationKind: NSKeyValueSetMutationKind, using objects: Set<AnyHashable>)
    func addObserver(_ observer: NSObject, forKeyPath keyPath: String, options options: NSKeyValueObservingOptions = [], context context: UnsafeMutableRawPointer?)
    func removeObserver(_ observer: NSObject, forKeyPath keyPath: String, context context: UnsafeMutableRawPointer?)
    func removeObserver(_ observer: NSObject, forKeyPath keyPath: String)
    func observeValue(forKeyPath keyPath: String?, of object: Any?, change change: [NSKeyValueChangeKey : Any]?, context context: UnsafeMutableRawPointer?)
    class var accessInstanceVariablesDirectly: Bool { get }
    func value(forKey key: String) -> Any?
    func setValue(_ value: Any?, forKey key: String)
    func validateValue(_ ioValue: AutoreleasingUnsafeMutablePointer<AnyObject?>, forKey inKey: String) throws
    func mutableArrayValue(forKey key: String) -> NSMutableArray
    func mutableOrderedSetValue(forKey key: String) -> NSMutableOrderedSet
    func mutableSetValue(forKey key: String) -> NSMutableSet
    func value(forKeyPath keyPath: String) -> Any?
    func setValue(_ value: Any?, forKeyPath keyPath: String)
    func validateValue(_ ioValue: AutoreleasingUnsafeMutablePointer<AnyObject?>, forKeyPath inKeyPath: String) throws
    func mutableArrayValue(forKeyPath keyPath: String) -> NSMutableArray
    func mutableOrderedSetValue(forKeyPath keyPath: String) -> NSMutableOrderedSet
    func mutableSetValue(forKeyPath keyPath: String) -> NSMutableSet
    func value(forUndefinedKey key: String) -> Any?
    func setValue(_ value: Any?, forUndefinedKey key: String)
    func setNilValueForKey(_ key: String)
    func dictionaryWithValues(forKeys keys: [String]) -> [String : Any]
    func setValuesForKeys(_ keyedValues: [String : Any])
    func fileManager(_ fm: FileManager, shouldProceedAfterError errorInfo: [AnyHashable : Any]) -> Bool
    func fileManager(_ fm: FileManager, willProcessPath path: String)
    func perform(_ aSelector: Selector, with anArgument: Any?, afterDelay delay: TimeInterval, inModes modes: [RunLoopMode])
    func perform(_ aSelector: Selector, with anArgument: Any?, afterDelay delay: TimeInterval)
    class func cancelPreviousPerformRequests(withTarget aTarget: Any, selector aSelector: Selector, object anArgument: Any?)
    class func cancelPreviousPerformRequests(withTarget aTarget: Any)
    func attemptRecovery(fromError error: Error, optionIndex recoveryOptionIndex: Int, delegate delegate: Any?, didRecoverSelector didRecoverSelector: Selector?, contextInfo contextInfo: UnsafeMutableRawPointer?)
    func attemptRecovery(fromError error: Error, optionIndex recoveryOptionIndex: Int) -> Bool
    var autoContentAccessingProxy: Any { get }
    class func version() -> Int
    class func setVersion(_ aVersion: Int)
    var classForCoder: AnyClass { get }
    func awakeAfter(using aDecoder: NSCoder) -> Any?
    func provideImageData(_ data: UnsafeMutableRawPointer, bytesPerRow rowbytes: Int, origin x: Int, _ y: Int, size width: Int, _ height: Int, userInfo info: Any?)
}
extension GKMatchmaker : CVarArg {
}
extension GKMatchmaker : Equatable, Hashable {
    var hashValue: Int { get }
}
extension GKMatchmaker {
    var inviteHandler: ((GKInvite, [Any]?) -> Swift.Void)?
    func startBrowsingForNearbyPlayers(reachableHandler reachableHandler: ((String, Bool) -> Swift.Void)? = nil)
    func cancelInvite(toPlayer playerID: String)
    func findPlayers(forHostedMatchRequest request: GKMatchRequest, withCompletionHandler completionHandler: (([String]?, Error?) -> Swift.Void)? = nil)
}

Declaration
From
func addPlayers(to match: GKMatch, matchRequest matchRequest: GKMatchRequest, completionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
To
func addPlayers(to match: GKMatch, matchRequest matchRequest: GKMatchRequest, completionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)

Declaration
From
func findMatch(for request: GKMatchRequest, withCompletionHandler completionHandler: (@escaping (GKMatch?, Error?) -> Swift.Void)? = nil)
To
func findMatch(for request: GKMatchRequest, withCompletionHandler completionHandler: ((GKMatch?, Error?) -> Swift.Void)? = nil)

Declaration
From
func findPlayers(forHostedMatchRequest request: GKMatchRequest, withCompletionHandler completionHandler: (@escaping ([String]?, Error?) -> Swift.Void)? = nil)
To
func findPlayers(forHostedMatchRequest request: GKMatchRequest, withCompletionHandler completionHandler: (([String]?, Error?) -> Swift.Void)? = nil)

Declaration
From
func findPlayers(forHostedRequest request: GKMatchRequest, withCompletionHandler completionHandler: (@escaping ([GKPlayer]?, Error?) -> Swift.Void)? = nil)
To
func findPlayers(forHostedRequest request: GKMatchRequest, withCompletionHandler completionHandler: (([GKPlayer]?, Error?) -> Swift.Void)? = nil)

Declaration
From
func match(for invite: GKInvite, completionHandler completionHandler: (@escaping (GKMatch?, Error?) -> Swift.Void)? = nil)
To
func match(for invite: GKInvite, completionHandler completionHandler: ((GKMatch?, Error?) -> Swift.Void)? = nil)

Declaration
From
func queryActivity(completionHandler completionHandler: (@escaping (Int, Error?) -> Swift.Void)? = nil)
To
func queryActivity(completionHandler completionHandler: ((Int, Error?) -> Swift.Void)? = nil)

Declaration
From
func queryPlayerGroupActivity(_ playerGroup: Int, withCompletionHandler completionHandler: (@escaping (Int, Error?) -> Swift.Void)? = nil)
To
func queryPlayerGroupActivity(_ playerGroup: Int, withCompletionHandler completionHandler: ((Int, Error?) -> Swift.Void)? = nil)

Declaration
From
func startBrowsingForNearbyPlayers(handler reachableHandler: (@escaping (GKPlayer, Bool) -> Swift.Void)? = nil)
To
func startBrowsingForNearbyPlayers(handler reachableHandler: ((GKPlayer, Bool) -> Swift.Void)? = nil)

Declaration
From
func startBrowsingForNearbyPlayers(reachableHandler reachableHandler: (@escaping (String, Bool) -> Swift.Void)? = nil)
To
func startBrowsingForNearbyPlayers(reachableHandler reachableHandler: ((String, Bool) -> Swift.Void)? = nil)

Declaration
From
class GKNotificationBanner : NSObject {
    class func show(withTitle title: String?, message message: String?, completionHandler completionHandler: (@escaping () -> Swift.Void)? = nil)
    class func show(withTitle title: String?, message message: String?, duration duration: TimeInterval, completionHandler completionHandler: (@escaping () -> Swift.Void)? = nil)
    func awakeFromNib()
    func prepareForInterfaceBuilder()
    func accessibilityActivate() -> Bool
    func accessibilityIncrement()
    func accessibilityDecrement()
    func accessibilityScroll(_ direction: UIAccessibilityScrollDirection) -> Bool
    func accessibilityPerformEscape() -> Bool
    func accessibilityPerformMagicTap() -> Bool
    var accessibilityCustomActions: [UIAccessibilityCustomAction]?
    func accessibilityElementDidBecomeFocused()
    func accessibilityElementDidLoseFocus()
    func accessibilityElementIsFocused() -> Bool
    func accessibilityAssistiveTechnologyFocusedIdentifiers() -> Set<String>?
    func accessibilityElementCount() -> Int
    func accessibilityElement(at index: Int) -> Any?
    func index(ofAccessibilityElement element: Any) -> Int
    var accessibilityElements: [Any]?
    var isAccessibilityElement: Bool
    var accessibilityLabel: String?
    var accessibilityHint: String?
    var accessibilityValue: String?
    var accessibilityTraits: UIAccessibilityTraits
    var accessibilityFrame: CGRect
    @NSCopying var accessibilityPath: UIBezierPath?
    var accessibilityActivationPoint: CGPoint
    var accessibilityLanguage: String?
    var accessibilityElementsHidden: Bool
    var accessibilityViewIsModal: Bool
    var shouldGroupAccessibilityChildren: Bool
    var accessibilityNavigationStyle: UIAccessibilityNavigationStyle
    var accessibilityHeaderElements: [Any]?
    var accessibilityCustomRotors: [UIAccessibilityCustomRotor]?
    func performSelector(onMainThread aSelector: Selector, with arg: Any?, waitUntilDone wait: Bool, modes array: [String]?)
    func performSelector(onMainThread aSelector: Selector, with arg: Any?, waitUntilDone wait: Bool)
    func perform(_ aSelector: Selector, on thr: Thread, with arg: Any?, waitUntilDone wait: Bool, modes array: [String]?)
    func perform(_ aSelector: Selector, on thr: Thread, with arg: Any?, waitUntilDone wait: Bool)
    func performSelector(inBackground aSelector: Selector, with arg: Any?)
    class func classForKeyedUnarchiver() -> AnyClass
    var classForKeyedArchiver: AnyClass? { get }
    func replacementObject(for archiver: NSKeyedArchiver) -> Any?
    class func classFallbacksForKeyedArchiver() -> [String]
    class func keyPathsForValuesAffectingValue(forKey key: String) -> Set<String>
    class func automaticallyNotifiesObservers(forKey key: String) -> Bool
    var observationInfo: UnsafeMutableRawPointer?
    func willChangeValue(forKey key: String)
    func didChangeValue(forKey key: String)
    func willChange(_ changeKind: NSKeyValueChange, valuesAt indexes: IndexSet, forKey key: String)
    func didChange(_ changeKind: NSKeyValueChange, valuesAt indexes: IndexSet, forKey key: String)
    func willChangeValue(forKey key: String, withSetMutation mutationKind: NSKeyValueSetMutationKind, using objects: Set<AnyHashable>)
    func didChangeValue(forKey key: String, withSetMutation mutationKind: NSKeyValueSetMutationKind, using objects: Set<AnyHashable>)
    func addObserver(_ observer: NSObject, forKeyPath keyPath: String, options options: NSKeyValueObservingOptions = [], context context: UnsafeMutableRawPointer?)
    func removeObserver(_ observer: NSObject, forKeyPath keyPath: String, context context: UnsafeMutableRawPointer?)
    func removeObserver(_ observer: NSObject, forKeyPath keyPath: String)
    func observeValue(forKeyPath keyPath: String?, of object: Any?, change change: [NSKeyValueChangeKey : Any]?, context context: UnsafeMutableRawPointer?)
    class var accessInstanceVariablesDirectly: Bool { get }
    func value(forKey key: String) -> Any?
    func setValue(_ value: Any?, forKey key: String)
    func validateValue(_ ioValue: AutoreleasingUnsafeMutablePointer<AnyObject?>, forKey inKey: String) throws
    func mutableArrayValue(forKey key: String) -> NSMutableArray
    func mutableOrderedSetValue(forKey key: String) -> NSMutableOrderedSet
    func mutableSetValue(forKey key: String) -> NSMutableSet
    func value(forKeyPath keyPath: String) -> Any?
    func setValue(_ value: Any?, forKeyPath keyPath: String)
    func validateValue(_ ioValue: AutoreleasingUnsafeMutablePointer<AnyObject?>, forKeyPath inKeyPath: String) throws
    func mutableArrayValue(forKeyPath keyPath: String) -> NSMutableArray
    func mutableOrderedSetValue(forKeyPath keyPath: String) -> NSMutableOrderedSet
    func mutableSetValue(forKeyPath keyPath: String) -> NSMutableSet
    func value(forUndefinedKey key: String) -> Any?
    func setValue(_ value: Any?, forUndefinedKey key: String)
    func setNilValueForKey(_ key: String)
    func dictionaryWithValues(forKeys keys: [String]) -> [String : Any]
    func setValuesForKeys(_ keyedValues: [String : Any])
    func fileManager(_ fm: FileManager, shouldProceedAfterError errorInfo: [AnyHashable : Any]) -> Bool
    func fileManager(_ fm: FileManager, willProcessPath path: String)
    func perform(_ aSelector: Selector, with anArgument: Any?, afterDelay delay: TimeInterval, inModes modes: [RunLoopMode])
    func perform(_ aSelector: Selector, with anArgument: Any?, afterDelay delay: TimeInterval)
    class func cancelPreviousPerformRequests(withTarget aTarget: Any, selector aSelector: Selector, object anArgument: Any?)
    class func cancelPreviousPerformRequests(withTarget aTarget: Any)
    func attemptRecovery(fromError error: Error, optionIndex recoveryOptionIndex: Int, delegate delegate: Any?, didRecoverSelector didRecoverSelector: Selector?, contextInfo contextInfo: UnsafeMutableRawPointer?)
    func attemptRecovery(fromError error: Error, optionIndex recoveryOptionIndex: Int) -> Bool
    var autoContentAccessingProxy: Any { get }
    class func version() -> Int
    class func setVersion(_ aVersion: Int)
    var classForCoder: AnyClass { get }
    func awakeAfter(using aDecoder: NSCoder) -> Any?
    func provideImageData(_ data: UnsafeMutableRawPointer, bytesPerRow rowbytes: Int, origin x: Int, _ y: Int, size width: Int, _ height: Int, userInfo info: Any?)
}
extension GKNotificationBanner : CVarArg {
}
extension GKNotificationBanner : Equatable, Hashable {
    var hashValue: Int { get }
}
To
class GKNotificationBanner : NSObject {
    class func show(withTitle title: String?, message message: String?, completionHandler completionHandler: (() -> Swift.Void)? = nil)
    class func show(withTitle title: String?, message message: String?, duration duration: TimeInterval, completionHandler completionHandler: (() -> Swift.Void)? = nil)
    func awakeFromNib()
    func prepareForInterfaceBuilder()
    func accessibilityActivate() -> Bool
    func accessibilityIncrement()
    func accessibilityDecrement()
    func accessibilityScroll(_ direction: UIAccessibilityScrollDirection) -> Bool
    func accessibilityPerformEscape() -> Bool
    func accessibilityPerformMagicTap() -> Bool
    var accessibilityCustomActions: [UIAccessibilityCustomAction]?
    func accessibilityElementDidBecomeFocused()
    func accessibilityElementDidLoseFocus()
    func accessibilityElementIsFocused() -> Bool
    func accessibilityAssistiveTechnologyFocusedIdentifiers() -> Set<String>?
    func accessibilityElementCount() -> Int
    func accessibilityElement(at index: Int) -> Any?
    func index(ofAccessibilityElement element: Any) -> Int
    var accessibilityElements: [Any]?
    var isAccessibilityElement: Bool
    var accessibilityLabel: String?
    var accessibilityHint: String?
    var accessibilityValue: String?
    var accessibilityTraits: UIAccessibilityTraits
    var accessibilityFrame: CGRect
    @NSCopying var accessibilityPath: UIBezierPath?
    var accessibilityActivationPoint: CGPoint
    var accessibilityLanguage: String?
    var accessibilityElementsHidden: Bool
    var accessibilityViewIsModal: Bool
    var shouldGroupAccessibilityChildren: Bool
    var accessibilityNavigationStyle: UIAccessibilityNavigationStyle
    var accessibilityHeaderElements: [Any]?
    var accessibilityCustomRotors: [UIAccessibilityCustomRotor]?
    func performSelector(onMainThread aSelector: Selector, with arg: Any?, waitUntilDone wait: Bool, modes array: [String]?)
    func performSelector(onMainThread aSelector: Selector, with arg: Any?, waitUntilDone wait: Bool)
    func perform(_ aSelector: Selector, on thr: Thread, with arg: Any?, waitUntilDone wait: Bool, modes array: [String]?)
    func perform(_ aSelector: Selector, on thr: Thread, with arg: Any?, waitUntilDone wait: Bool)
    func performSelector(inBackground aSelector: Selector, with arg: Any?)
    class func classForKeyedUnarchiver() -> AnyClass
    var classForKeyedArchiver: AnyClass? { get }
    func replacementObject(for archiver: NSKeyedArchiver) -> Any?
    class func classFallbacksForKeyedArchiver() -> [String]
    class func keyPathsForValuesAffectingValue(forKey key: String) -> Set<String>
    class func automaticallyNotifiesObservers(forKey key: String) -> Bool
    var observationInfo: UnsafeMutableRawPointer?
    func willChangeValue(forKey key: String)
    func didChangeValue(forKey key: String)
    func willChange(_ changeKind: NSKeyValueChange, valuesAt indexes: IndexSet, forKey key: String)
    func didChange(_ changeKind: NSKeyValueChange, valuesAt indexes: IndexSet, forKey key: String)
    func willChangeValue(forKey key: String, withSetMutation mutationKind: NSKeyValueSetMutationKind, using objects: Set<AnyHashable>)
    func didChangeValue(forKey key: String, withSetMutation mutationKind: NSKeyValueSetMutationKind, using objects: Set<AnyHashable>)
    func addObserver(_ observer: NSObject, forKeyPath keyPath: String, options options: NSKeyValueObservingOptions = [], context context: UnsafeMutableRawPointer?)
    func removeObserver(_ observer: NSObject, forKeyPath keyPath: String, context context: UnsafeMutableRawPointer?)
    func removeObserver(_ observer: NSObject, forKeyPath keyPath: String)
    func observeValue(forKeyPath keyPath: String?, of object: Any?, change change: [NSKeyValueChangeKey : Any]?, context context: UnsafeMutableRawPointer?)
    class var accessInstanceVariablesDirectly: Bool { get }
    func value(forKey key: String) -> Any?
    func setValue(_ value: Any?, forKey key: String)
    func validateValue(_ ioValue: AutoreleasingUnsafeMutablePointer<AnyObject?>, forKey inKey: String) throws
    func mutableArrayValue(forKey key: String) -> NSMutableArray
    func mutableOrderedSetValue(forKey key: String) -> NSMutableOrderedSet
    func mutableSetValue(forKey key: String) -> NSMutableSet
    func value(forKeyPath keyPath: String) -> Any?
    func setValue(_ value: Any?, forKeyPath keyPath: String)
    func validateValue(_ ioValue: AutoreleasingUnsafeMutablePointer<AnyObject?>, forKeyPath inKeyPath: String) throws
    func mutableArrayValue(forKeyPath keyPath: String) -> NSMutableArray
    func mutableOrderedSetValue(forKeyPath keyPath: String) -> NSMutableOrderedSet
    func mutableSetValue(forKeyPath keyPath: String) -> NSMutableSet
    func value(forUndefinedKey key: String) -> Any?
    func setValue(_ value: Any?, forUndefinedKey key: String)
    func setNilValueForKey(_ key: String)
    func dictionaryWithValues(forKeys keys: [String]) -> [String : Any]
    func setValuesForKeys(_ keyedValues: [String : Any])
    func fileManager(_ fm: FileManager, shouldProceedAfterError errorInfo: [AnyHashable : Any]) -> Bool
    func fileManager(_ fm: FileManager, willProcessPath path: String)
    func perform(_ aSelector: Selector, with anArgument: Any?, afterDelay delay: TimeInterval, inModes modes: [RunLoopMode])
    func perform(_ aSelector: Selector, with anArgument: Any?, afterDelay delay: TimeInterval)
    class func cancelPreviousPerformRequests(withTarget aTarget: Any, selector aSelector: Selector, object anArgument: Any?)
    class func cancelPreviousPerformRequests(withTarget aTarget: Any)
    func attemptRecovery(fromError error: Error, optionIndex recoveryOptionIndex: Int, delegate delegate: Any?, didRecoverSelector didRecoverSelector: Selector?, contextInfo contextInfo: UnsafeMutableRawPointer?)
    func attemptRecovery(fromError error: Error, optionIndex recoveryOptionIndex: Int) -> Bool
    var autoContentAccessingProxy: Any { get }
    class func version() -> Int
    class func setVersion(_ aVersion: Int)
    var classForCoder: AnyClass { get }
    func awakeAfter(using aDecoder: NSCoder) -> Any?
    func provideImageData(_ data: UnsafeMutableRawPointer, bytesPerRow rowbytes: Int, origin x: Int, _ y: Int, size width: Int, _ height: Int, userInfo info: Any?)
}
extension GKNotificationBanner : CVarArg {
}
extension GKNotificationBanner : Equatable, Hashable {
    var hashValue: Int { get }
}

Declaration
From
class func show(withTitle title: String?, message message: String?, completionHandler completionHandler: (@escaping () -> Swift.Void)? = nil)
To
class func show(withTitle title: String?, message message: String?, completionHandler completionHandler: (() -> Swift.Void)? = nil)

Declaration
From
class func show(withTitle title: String?, message message: String?, duration duration: TimeInterval, completionHandler completionHandler: (@escaping () -> Swift.Void)? = nil)
To
class func show(withTitle title: String?, message message: String?, duration duration: TimeInterval, completionHandler completionHandler: (() -> Swift.Void)? = nil)

Modified GKPlayer
Declaration
From
class GKPlayer : GKBasePlayer {
    class func loadPlayers(forIdentifiers identifiers: [String], withCompletionHandler completionHandler: (@escaping ([GKPlayer]?, Error?) -> Swift.Void)? = nil)
    var playerID: String? { get }
    var displayName: String? { get }
    var alias: String? { get }
    class func anonymousGuestPlayer(withIdentifier guestIdentifier: String) -> Self
    var guestIdentifier: String? { get }
    var isFriend: Bool { get }
    func loadPhoto(forSize size: GKPhotoSize, withCompletionHandler completionHandler: (@escaping (UIImage?, Error?) -> Swift.Void)? = nil)
}
extension GKPlayer {
    func loadPhoto(forSize size: GKPhotoSize, withCompletionHandler completionHandler: (@escaping (UIImage?, Error?) -> Swift.Void)? = nil)
}
extension GKPlayer {
    var isFriend: Bool { get }
}
To
class GKPlayer : GKBasePlayer {
    class func loadPlayers(forIdentifiers identifiers: [String], withCompletionHandler completionHandler: (([GKPlayer]?, Error?) -> Swift.Void)? = nil)
    var playerID: String? { get }
    var displayName: String? { get }
    var alias: String? { get }
    class func anonymousGuestPlayer(withIdentifier guestIdentifier: String) -> Self
    var guestIdentifier: String? { get }
    var isFriend: Bool { get }
    func loadPhoto(forSize size: GKPhotoSize, withCompletionHandler completionHandler: ((UIImage?, Error?) -> Swift.Void)? = nil)
}
extension GKPlayer {
    func loadPhoto(forSize size: GKPhotoSize, withCompletionHandler completionHandler: ((UIImage?, Error?) -> Swift.Void)? = nil)
}
extension GKPlayer {
    var isFriend: Bool { get }
}

Declaration
From
func loadPhoto(forSize size: GKPhotoSize, withCompletionHandler completionHandler: (@escaping (UIImage?, Error?) -> Swift.Void)? = nil)
To
func loadPhoto(forSize size: GKPhotoSize, withCompletionHandler completionHandler: ((UIImage?, Error?) -> Swift.Void)? = nil)

Declaration
From
class func loadPlayers(forIdentifiers identifiers: [String], withCompletionHandler completionHandler: (@escaping ([GKPlayer]?, Error?) -> Swift.Void)? = nil)
To
class func loadPlayers(forIdentifiers identifiers: [String], withCompletionHandler completionHandler: (([GKPlayer]?, Error?) -> Swift.Void)? = nil)

Modified GKSavedGame
Declaration
From
class GKSavedGame : NSObject, NSCopying {
    var name: String? { get }
    var deviceName: String? { get }
    var modificationDate: Date? { get }
    func loadData(completionHandler handler: (@escaping (Data?, Error?) -> Swift.Void)? = nil)
    func awakeFromNib()
    func prepareForInterfaceBuilder()
    func accessibilityActivate() -> Bool
    func accessibilityIncrement()
    func accessibilityDecrement()
    func accessibilityScroll(_ direction: UIAccessibilityScrollDirection) -> Bool
    func accessibilityPerformEscape() -> Bool
    func accessibilityPerformMagicTap() -> Bool
    var accessibilityCustomActions: [UIAccessibilityCustomAction]?
    func accessibilityElementDidBecomeFocused()
    func accessibilityElementDidLoseFocus()
    func accessibilityElementIsFocused() -> Bool
    func accessibilityAssistiveTechnologyFocusedIdentifiers() -> Set<String>?
    func accessibilityElementCount() -> Int
    func accessibilityElement(at index: Int) -> Any?
    func index(ofAccessibilityElement element: Any) -> Int
    var accessibilityElements: [Any]?
    var isAccessibilityElement: Bool
    var accessibilityLabel: String?
    var accessibilityHint: String?
    var accessibilityValue: String?
    var accessibilityTraits: UIAccessibilityTraits
    var accessibilityFrame: CGRect
    @NSCopying var accessibilityPath: UIBezierPath?
    var accessibilityActivationPoint: CGPoint
    var accessibilityLanguage: String?
    var accessibilityElementsHidden: Bool
    var accessibilityViewIsModal: Bool
    var shouldGroupAccessibilityChildren: Bool
    var accessibilityNavigationStyle: UIAccessibilityNavigationStyle
    var accessibilityHeaderElements: [Any]?
    var accessibilityCustomRotors: [UIAccessibilityCustomRotor]?
    func performSelector(onMainThread aSelector: Selector, with arg: Any?, waitUntilDone wait: Bool, modes array: [String]?)
    func performSelector(onMainThread aSelector: Selector, with arg: Any?, waitUntilDone wait: Bool)
    func perform(_ aSelector: Selector, on thr: Thread, with arg: Any?, waitUntilDone wait: Bool, modes array: [String]?)
    func perform(_ aSelector: Selector, on thr: Thread, with arg: Any?, waitUntilDone wait: Bool)
    func performSelector(inBackground aSelector: Selector, with arg: Any?)
    class func classForKeyedUnarchiver() -> AnyClass
    var classForKeyedArchiver: AnyClass? { get }
    func replacementObject(for archiver: NSKeyedArchiver) -> Any?
    class func classFallbacksForKeyedArchiver() -> [String]
    class func keyPathsForValuesAffectingValue(forKey key: String) -> Set<String>
    class func automaticallyNotifiesObservers(forKey key: String) -> Bool
    var observationInfo: UnsafeMutableRawPointer?
    func willChangeValue(forKey key: String)
    func didChangeValue(forKey key: String)
    func willChange(_ changeKind: NSKeyValueChange, valuesAt indexes: IndexSet, forKey key: String)
    func didChange(_ changeKind: NSKeyValueChange, valuesAt indexes: IndexSet, forKey key: String)
    func willChangeValue(forKey key: String, withSetMutation mutationKind: NSKeyValueSetMutationKind, using objects: Set<AnyHashable>)
    func didChangeValue(forKey key: String, withSetMutation mutationKind: NSKeyValueSetMutationKind, using objects: Set<AnyHashable>)
    func addObserver(_ observer: NSObject, forKeyPath keyPath: String, options options: NSKeyValueObservingOptions = [], context context: UnsafeMutableRawPointer?)
    func removeObserver(_ observer: NSObject, forKeyPath keyPath: String, context context: UnsafeMutableRawPointer?)
    func removeObserver(_ observer: NSObject, forKeyPath keyPath: String)
    func observeValue(forKeyPath keyPath: String?, of object: Any?, change change: [NSKeyValueChangeKey : Any]?, context context: UnsafeMutableRawPointer?)
    class var accessInstanceVariablesDirectly: Bool { get }
    func value(forKey key: String) -> Any?
    func setValue(_ value: Any?, forKey key: String)
    func validateValue(_ ioValue: AutoreleasingUnsafeMutablePointer<AnyObject?>, forKey inKey: String) throws
    func mutableArrayValue(forKey key: String) -> NSMutableArray
    func mutableOrderedSetValue(forKey key: String) -> NSMutableOrderedSet
    func mutableSetValue(forKey key: String) -> NSMutableSet
    func value(forKeyPath keyPath: String) -> Any?
    func setValue(_ value: Any?, forKeyPath keyPath: String)
    func validateValue(_ ioValue: AutoreleasingUnsafeMutablePointer<AnyObject?>, forKeyPath inKeyPath: String) throws
    func mutableArrayValue(forKeyPath keyPath: String) -> NSMutableArray
    func mutableOrderedSetValue(forKeyPath keyPath: String) -> NSMutableOrderedSet
    func mutableSetValue(forKeyPath keyPath: String) -> NSMutableSet
    func value(forUndefinedKey key: String) -> Any?
    func setValue(_ value: Any?, forUndefinedKey key: String)
    func setNilValueForKey(_ key: String)
    func dictionaryWithValues(forKeys keys: [String]) -> [String : Any]
    func setValuesForKeys(_ keyedValues: [String : Any])
    func fileManager(_ fm: FileManager, shouldProceedAfterError errorInfo: [AnyHashable : Any]) -> Bool
    func fileManager(_ fm: FileManager, willProcessPath path: String)
    func perform(_ aSelector: Selector, with anArgument: Any?, afterDelay delay: TimeInterval, inModes modes: [RunLoopMode])
    func perform(_ aSelector: Selector, with anArgument: Any?, afterDelay delay: TimeInterval)
    class func cancelPreviousPerformRequests(withTarget aTarget: Any, selector aSelector: Selector, object anArgument: Any?)
    class func cancelPreviousPerformRequests(withTarget aTarget: Any)
    func attemptRecovery(fromError error: Error, optionIndex recoveryOptionIndex: Int, delegate delegate: Any?, didRecoverSelector didRecoverSelector: Selector?, contextInfo contextInfo: UnsafeMutableRawPointer?)
    func attemptRecovery(fromError error: Error, optionIndex recoveryOptionIndex: Int) -> Bool
    var autoContentAccessingProxy: Any { get }
    class func version() -> Int
    class func setVersion(_ aVersion: Int)
    var classForCoder: AnyClass { get }
    func awakeAfter(using aDecoder: NSCoder) -> Any?
    func provideImageData(_ data: UnsafeMutableRawPointer, bytesPerRow rowbytes: Int, origin x: Int, _ y: Int, size width: Int, _ height: Int, userInfo info: Any?)
}
extension GKSavedGame : CVarArg {
}
extension GKSavedGame : Equatable, Hashable {
    var hashValue: Int { get }
}
To
class GKSavedGame : NSObject, NSCopying {
    var name: String? { get }
    var deviceName: String? { get }
    var modificationDate: Date? { get }
    func loadData(completionHandler handler: ((Data?, Error?) -> Swift.Void)? = nil)
    func awakeFromNib()
    func prepareForInterfaceBuilder()
    func accessibilityActivate() -> Bool
    func accessibilityIncrement()
    func accessibilityDecrement()
    func accessibilityScroll(_ direction: UIAccessibilityScrollDirection) -> Bool
    func accessibilityPerformEscape() -> Bool
    func accessibilityPerformMagicTap() -> Bool
    var accessibilityCustomActions: [UIAccessibilityCustomAction]?
    func accessibilityElementDidBecomeFocused()
    func accessibilityElementDidLoseFocus()
    func accessibilityElementIsFocused() -> Bool
    func accessibilityAssistiveTechnologyFocusedIdentifiers() -> Set<String>?
    func accessibilityElementCount() -> Int
    func accessibilityElement(at index: Int) -> Any?
    func index(ofAccessibilityElement element: Any) -> Int
    var accessibilityElements: [Any]?
    var isAccessibilityElement: Bool
    var accessibilityLabel: String?
    var accessibilityHint: String?
    var accessibilityValue: String?
    var accessibilityTraits: UIAccessibilityTraits
    var accessibilityFrame: CGRect
    @NSCopying var accessibilityPath: UIBezierPath?
    var accessibilityActivationPoint: CGPoint
    var accessibilityLanguage: String?
    var accessibilityElementsHidden: Bool
    var accessibilityViewIsModal: Bool
    var shouldGroupAccessibilityChildren: Bool
    var accessibilityNavigationStyle: UIAccessibilityNavigationStyle
    var accessibilityHeaderElements: [Any]?
    var accessibilityCustomRotors: [UIAccessibilityCustomRotor]?
    func performSelector(onMainThread aSelector: Selector, with arg: Any?, waitUntilDone wait: Bool, modes array: [String]?)
    func performSelector(onMainThread aSelector: Selector, with arg: Any?, waitUntilDone wait: Bool)
    func perform(_ aSelector: Selector, on thr: Thread, with arg: Any?, waitUntilDone wait: Bool, modes array: [String]?)
    func perform(_ aSelector: Selector, on thr: Thread, with arg: Any?, waitUntilDone wait: Bool)
    func performSelector(inBackground aSelector: Selector, with arg: Any?)
    class func classForKeyedUnarchiver() -> AnyClass
    var classForKeyedArchiver: AnyClass? { get }
    func replacementObject(for archiver: NSKeyedArchiver) -> Any?
    class func classFallbacksForKeyedArchiver() -> [String]
    class func keyPathsForValuesAffectingValue(forKey key: String) -> Set<String>
    class func automaticallyNotifiesObservers(forKey key: String) -> Bool
    var observationInfo: UnsafeMutableRawPointer?
    func willChangeValue(forKey key: String)
    func didChangeValue(forKey key: String)
    func willChange(_ changeKind: NSKeyValueChange, valuesAt indexes: IndexSet, forKey key: String)
    func didChange(_ changeKind: NSKeyValueChange, valuesAt indexes: IndexSet, forKey key: String)
    func willChangeValue(forKey key: String, withSetMutation mutationKind: NSKeyValueSetMutationKind, using objects: Set<AnyHashable>)
    func didChangeValue(forKey key: String, withSetMutation mutationKind: NSKeyValueSetMutationKind, using objects: Set<AnyHashable>)
    func addObserver(_ observer: NSObject, forKeyPath keyPath: String, options options: NSKeyValueObservingOptions = [], context context: UnsafeMutableRawPointer?)
    func removeObserver(_ observer: NSObject, forKeyPath keyPath: String, context context: UnsafeMutableRawPointer?)
    func removeObserver(_ observer: NSObject, forKeyPath keyPath: String)
    func observeValue(forKeyPath keyPath: String?, of object: Any?, change change: [NSKeyValueChangeKey : Any]?, context context: UnsafeMutableRawPointer?)
    class var accessInstanceVariablesDirectly: Bool { get }
    func value(forKey key: String) -> Any?
    func setValue(_ value: Any?, forKey key: String)
    func validateValue(_ ioValue: AutoreleasingUnsafeMutablePointer<AnyObject?>, forKey inKey: String) throws
    func mutableArrayValue(forKey key: String) -> NSMutableArray
    func mutableOrderedSetValue(forKey key: String) -> NSMutableOrderedSet
    func mutableSetValue(forKey key: String) -> NSMutableSet
    func value(forKeyPath keyPath: String) -> Any?
    func setValue(_ value: Any?, forKeyPath keyPath: String)
    func validateValue(_ ioValue: AutoreleasingUnsafeMutablePointer<AnyObject?>, forKeyPath inKeyPath: String) throws
    func mutableArrayValue(forKeyPath keyPath: String) -> NSMutableArray
    func mutableOrderedSetValue(forKeyPath keyPath: String) -> NSMutableOrderedSet
    func mutableSetValue(forKeyPath keyPath: String) -> NSMutableSet
    func value(forUndefinedKey key: String) -> Any?
    func setValue(_ value: Any?, forUndefinedKey key: String)
    func setNilValueForKey(_ key: String)
    func dictionaryWithValues(forKeys keys: [String]) -> [String : Any]
    func setValuesForKeys(_ keyedValues: [String : Any])
    func fileManager(_ fm: FileManager, shouldProceedAfterError errorInfo: [AnyHashable : Any]) -> Bool
    func fileManager(_ fm: FileManager, willProcessPath path: String)
    func perform(_ aSelector: Selector, with anArgument: Any?, afterDelay delay: TimeInterval, inModes modes: [RunLoopMode])
    func perform(_ aSelector: Selector, with anArgument: Any?, afterDelay delay: TimeInterval)
    class func cancelPreviousPerformRequests(withTarget aTarget: Any, selector aSelector: Selector, object anArgument: Any?)
    class func cancelPreviousPerformRequests(withTarget aTarget: Any)
    func attemptRecovery(fromError error: Error, optionIndex recoveryOptionIndex: Int, delegate delegate: Any?, didRecoverSelector didRecoverSelector: Selector?, contextInfo contextInfo: UnsafeMutableRawPointer?)
    func attemptRecovery(fromError error: Error, optionIndex recoveryOptionIndex: Int) -> Bool
    var autoContentAccessingProxy: Any { get }
    class func version() -> Int
    class func setVersion(_ aVersion: Int)
    var classForCoder: AnyClass { get }
    func awakeAfter(using aDecoder: NSCoder) -> Any?
    func provideImageData(_ data: UnsafeMutableRawPointer, bytesPerRow rowbytes: Int, origin x: Int, _ y: Int, size width: Int, _ height: Int, userInfo info: Any?)
}
extension GKSavedGame : CVarArg {
}
extension GKSavedGame : Equatable, Hashable {
    var hashValue: Int { get }
}

Declaration
From
func loadData(completionHandler handler: (@escaping (Data?, Error?) -> Swift.Void)? = nil)
To
func loadData(completionHandler handler: ((Data?, Error?) -> Swift.Void)? = nil)

Modified GKScore
Declaration
From
class GKScore : NSObject, NSCoding, NSSecureCoding {
    init(leaderboardIdentifier identifier: String)
    init(leaderboardIdentifier identifier: String, player player: GKPlayer)
    var value: Int64
    var formattedValue: String? { get }
    var leaderboardIdentifier: String
    var context: UInt64
    var date: Date { get }
    var player: GKPlayer? { get }
    var rank: Int { get }
    var shouldSetDefaultLeaderboard: Bool
    class func report(_ scores: [GKScore], withCompletionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
    func challengeComposeController(withPlayers playerIDs: [String]?, message message: String?, completionHandler completionHandler: GameKit.GKChallengeComposeCompletionBlock? = nil) -> UIViewController?
    func challengeComposeController(withMessage message: String?, players players: [GKPlayer]?, completionHandler completionHandler: GameKit.GKChallengeComposeCompletionBlock? = nil) -> UIViewController
    func issueChallenge(toPlayers playerIDs: [String]?, message message: String?)
    class func report(_ scores: [GKScore], withEligibleChallenges challenges: [GKChallenge], withCompletionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
    init(leaderboardIdentifier identifier: String, forPlayer playerID: String)
    func report(completionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
    init(category category: String?)
    var playerID: String { get }
    var category: String?
    func awakeFromNib()
    func prepareForInterfaceBuilder()
    func accessibilityActivate() -> Bool
    func accessibilityIncrement()
    func accessibilityDecrement()
    func accessibilityScroll(_ direction: UIAccessibilityScrollDirection) -> Bool
    func accessibilityPerformEscape() -> Bool
    func accessibilityPerformMagicTap() -> Bool
    var accessibilityCustomActions: [UIAccessibilityCustomAction]?
    func accessibilityElementDidBecomeFocused()
    func accessibilityElementDidLoseFocus()
    func accessibilityElementIsFocused() -> Bool
    func accessibilityAssistiveTechnologyFocusedIdentifiers() -> Set<String>?
    func accessibilityElementCount() -> Int
    func accessibilityElement(at index: Int) -> Any?
    func index(ofAccessibilityElement element: Any) -> Int
    var accessibilityElements: [Any]?
    var isAccessibilityElement: Bool
    var accessibilityLabel: String?
    var accessibilityHint: String?
    var accessibilityValue: String?
    var accessibilityTraits: UIAccessibilityTraits
    var accessibilityFrame: CGRect
    @NSCopying var accessibilityPath: UIBezierPath?
    var accessibilityActivationPoint: CGPoint
    var accessibilityLanguage: String?
    var accessibilityElementsHidden: Bool
    var accessibilityViewIsModal: Bool
    var shouldGroupAccessibilityChildren: Bool
    var accessibilityNavigationStyle: UIAccessibilityNavigationStyle
    var accessibilityHeaderElements: [Any]?
    var accessibilityCustomRotors: [UIAccessibilityCustomRotor]?
    func performSelector(onMainThread aSelector: Selector, with arg: Any?, waitUntilDone wait: Bool, modes array: [String]?)
    func performSelector(onMainThread aSelector: Selector, with arg: Any?, waitUntilDone wait: Bool)
    func perform(_ aSelector: Selector, on thr: Thread, with arg: Any?, waitUntilDone wait: Bool, modes array: [String]?)
    func perform(_ aSelector: Selector, on thr: Thread, with arg: Any?, waitUntilDone wait: Bool)
    func performSelector(inBackground aSelector: Selector, with arg: Any?)
    class func classForKeyedUnarchiver() -> AnyClass
    var classForKeyedArchiver: AnyClass? { get }
    func replacementObject(for archiver: NSKeyedArchiver) -> Any?
    class func classFallbacksForKeyedArchiver() -> [String]
    class func keyPathsForValuesAffectingValue(forKey key: String) -> Set<String>
    class func automaticallyNotifiesObservers(forKey key: String) -> Bool
    var observationInfo: UnsafeMutableRawPointer?
    func willChangeValue(forKey key: String)
    func didChangeValue(forKey key: String)
    func willChange(_ changeKind: NSKeyValueChange, valuesAt indexes: IndexSet, forKey key: String)
    func didChange(_ changeKind: NSKeyValueChange, valuesAt indexes: IndexSet, forKey key: String)
    func willChangeValue(forKey key: String, withSetMutation mutationKind: NSKeyValueSetMutationKind, using objects: Set<AnyHashable>)
    func didChangeValue(forKey key: String, withSetMutation mutationKind: NSKeyValueSetMutationKind, using objects: Set<AnyHashable>)
    func addObserver(_ observer: NSObject, forKeyPath keyPath: String, options options: NSKeyValueObservingOptions = [], context context: UnsafeMutableRawPointer?)
    func removeObserver(_ observer: NSObject, forKeyPath keyPath: String, context context: UnsafeMutableRawPointer?)
    func removeObserver(_ observer: NSObject, forKeyPath keyPath: String)
    func observeValue(forKeyPath keyPath: String?, of object: Any?, change change: [NSKeyValueChangeKey : Any]?, context context: UnsafeMutableRawPointer?)
    class var accessInstanceVariablesDirectly: Bool { get }
    func value(forKey key: String) -> Any?
    func setValue(_ value: Any?, forKey key: String)
    func validateValue(_ ioValue: AutoreleasingUnsafeMutablePointer<AnyObject?>, forKey inKey: String) throws
    func mutableArrayValue(forKey key: String) -> NSMutableArray
    func mutableOrderedSetValue(forKey key: String) -> NSMutableOrderedSet
    func mutableSetValue(forKey key: String) -> NSMutableSet
    func value(forKeyPath keyPath: String) -> Any?
    func setValue(_ value: Any?, forKeyPath keyPath: String)
    func validateValue(_ ioValue: AutoreleasingUnsafeMutablePointer<AnyObject?>, forKeyPath inKeyPath: String) throws
    func mutableArrayValue(forKeyPath keyPath: String) -> NSMutableArray
    func mutableOrderedSetValue(forKeyPath keyPath: String) -> NSMutableOrderedSet
    func mutableSetValue(forKeyPath keyPath: String) -> NSMutableSet
    func value(forUndefinedKey key: String) -> Any?
    func setValue(_ value: Any?, forUndefinedKey key: String)
    func setNilValueForKey(_ key: String)
    func dictionaryWithValues(forKeys keys: [String]) -> [String : Any]
    func setValuesForKeys(_ keyedValues: [String : Any])
    func fileManager(_ fm: FileManager, shouldProceedAfterError errorInfo: [AnyHashable : Any]) -> Bool
    func fileManager(_ fm: FileManager, willProcessPath path: String)
    func perform(_ aSelector: Selector, with anArgument: Any?, afterDelay delay: TimeInterval, inModes modes: [RunLoopMode])
    func perform(_ aSelector: Selector, with anArgument: Any?, afterDelay delay: TimeInterval)
    class func cancelPreviousPerformRequests(withTarget aTarget: Any, selector aSelector: Selector, object anArgument: Any?)
    class func cancelPreviousPerformRequests(withTarget aTarget: Any)
    func attemptRecovery(fromError error: Error, optionIndex recoveryOptionIndex: Int, delegate delegate: Any?, didRecoverSelector didRecoverSelector: Selector?, contextInfo contextInfo: UnsafeMutableRawPointer?)
    func attemptRecovery(fromError error: Error, optionIndex recoveryOptionIndex: Int) -> Bool
    var autoContentAccessingProxy: Any { get }
    class func version() -> Int
    class func setVersion(_ aVersion: Int)
    var classForCoder: AnyClass { get }
    func awakeAfter(using aDecoder: NSCoder) -> Any?
    func provideImageData(_ data: UnsafeMutableRawPointer, bytesPerRow rowbytes: Int, origin x: Int, _ y: Int, size width: Int, _ height: Int, userInfo info: Any?)
}
extension GKScore {
    func challengeComposeController(withMessage message: String?, players players: [GKPlayer]?, completionHandler completionHandler: GameKit.GKChallengeComposeCompletionBlock? = nil) -> UIViewController
    func issueChallenge(toPlayers playerIDs: [String]?, message message: String?)
    class func report(_ scores: [GKScore], withEligibleChallenges challenges: [GKChallenge], withCompletionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
}
extension GKScore {
    func challengeComposeController(withPlayers playerIDs: [String]?, message message: String?, completionHandler completionHandler: GameKit.GKChallengeComposeCompletionBlock? = nil) -> UIViewController?
}
extension GKScore : CVarArg {
}
extension GKScore : Equatable, Hashable {
    var hashValue: Int { get }
}
extension GKScore {
    init(leaderboardIdentifier identifier: String, forPlayer playerID: String)
    func report(completionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
    init(category category: String?)
    var playerID: String { get }
    var category: String?
}
To
class GKScore : NSObject, NSCoding, NSSecureCoding {
    init(leaderboardIdentifier identifier: String)
    init(leaderboardIdentifier identifier: String, player player: GKPlayer)
    var value: Int64
    var formattedValue: String? { get }
    var leaderboardIdentifier: String
    var context: UInt64
    var date: Date { get }
    var player: GKPlayer? { get }
    var rank: Int { get }
    var shouldSetDefaultLeaderboard: Bool
    class func report(_ scores: [GKScore], withCompletionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)
    func challengeComposeController(withPlayers playerIDs: [String]?, message message: String?, completionHandler completionHandler: GameKit.GKChallengeComposeCompletionBlock? = nil) -> UIViewController?
    func challengeComposeController(withMessage message: String?, players players: [GKPlayer]?, completionHandler completionHandler: GameKit.GKChallengeComposeCompletionBlock? = nil) -> UIViewController
    func issueChallenge(toPlayers playerIDs: [String]?, message message: String?)
    class func report(_ scores: [GKScore], withEligibleChallenges challenges: [GKChallenge], withCompletionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)
    init(leaderboardIdentifier identifier: String, forPlayer playerID: String)
    func report(completionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)
    init(category category: String?)
    var playerID: String { get }
    var category: String?
    func awakeFromNib()
    func prepareForInterfaceBuilder()
    func accessibilityActivate() -> Bool
    func accessibilityIncrement()
    func accessibilityDecrement()
    func accessibilityScroll(_ direction: UIAccessibilityScrollDirection) -> Bool
    func accessibilityPerformEscape() -> Bool
    func accessibilityPerformMagicTap() -> Bool
    var accessibilityCustomActions: [UIAccessibilityCustomAction]?
    func accessibilityElementDidBecomeFocused()
    func accessibilityElementDidLoseFocus()
    func accessibilityElementIsFocused() -> Bool
    func accessibilityAssistiveTechnologyFocusedIdentifiers() -> Set<String>?
    func accessibilityElementCount() -> Int
    func accessibilityElement(at index: Int) -> Any?
    func index(ofAccessibilityElement element: Any) -> Int
    var accessibilityElements: [Any]?
    var isAccessibilityElement: Bool
    var accessibilityLabel: String?
    var accessibilityHint: String?
    var accessibilityValue: String?
    var accessibilityTraits: UIAccessibilityTraits
    var accessibilityFrame: CGRect
    @NSCopying var accessibilityPath: UIBezierPath?
    var accessibilityActivationPoint: CGPoint
    var accessibilityLanguage: String?
    var accessibilityElementsHidden: Bool
    var accessibilityViewIsModal: Bool
    var shouldGroupAccessibilityChildren: Bool
    var accessibilityNavigationStyle: UIAccessibilityNavigationStyle
    var accessibilityHeaderElements: [Any]?
    var accessibilityCustomRotors: [UIAccessibilityCustomRotor]?
    func performSelector(onMainThread aSelector: Selector, with arg: Any?, waitUntilDone wait: Bool, modes array: [String]?)
    func performSelector(onMainThread aSelector: Selector, with arg: Any?, waitUntilDone wait: Bool)
    func perform(_ aSelector: Selector, on thr: Thread, with arg: Any?, waitUntilDone wait: Bool, modes array: [String]?)
    func perform(_ aSelector: Selector, on thr: Thread, with arg: Any?, waitUntilDone wait: Bool)
    func performSelector(inBackground aSelector: Selector, with arg: Any?)
    class func classForKeyedUnarchiver() -> AnyClass
    var classForKeyedArchiver: AnyClass? { get }
    func replacementObject(for archiver: NSKeyedArchiver) -> Any?
    class func classFallbacksForKeyedArchiver() -> [String]
    class func keyPathsForValuesAffectingValue(forKey key: String) -> Set<String>
    class func automaticallyNotifiesObservers(forKey key: String) -> Bool
    var observationInfo: UnsafeMutableRawPointer?
    func willChangeValue(forKey key: String)
    func didChangeValue(forKey key: String)
    func willChange(_ changeKind: NSKeyValueChange, valuesAt indexes: IndexSet, forKey key: String)
    func didChange(_ changeKind: NSKeyValueChange, valuesAt indexes: IndexSet, forKey key: String)
    func willChangeValue(forKey key: String, withSetMutation mutationKind: NSKeyValueSetMutationKind, using objects: Set<AnyHashable>)
    func didChangeValue(forKey key: String, withSetMutation mutationKind: NSKeyValueSetMutationKind, using objects: Set<AnyHashable>)
    func addObserver(_ observer: NSObject, forKeyPath keyPath: String, options options: NSKeyValueObservingOptions = [], context context: UnsafeMutableRawPointer?)
    func removeObserver(_ observer: NSObject, forKeyPath keyPath: String, context context: UnsafeMutableRawPointer?)
    func removeObserver(_ observer: NSObject, forKeyPath keyPath: String)
    func observeValue(forKeyPath keyPath: String?, of object: Any?, change change: [NSKeyValueChangeKey : Any]?, context context: UnsafeMutableRawPointer?)
    class var accessInstanceVariablesDirectly: Bool { get }
    func value(forKey key: String) -> Any?
    func setValue(_ value: Any?, forKey key: String)
    func validateValue(_ ioValue: AutoreleasingUnsafeMutablePointer<AnyObject?>, forKey inKey: String) throws
    func mutableArrayValue(forKey key: String) -> NSMutableArray
    func mutableOrderedSetValue(forKey key: String) -> NSMutableOrderedSet
    func mutableSetValue(forKey key: String) -> NSMutableSet
    func value(forKeyPath keyPath: String) -> Any?
    func setValue(_ value: Any?, forKeyPath keyPath: String)
    func validateValue(_ ioValue: AutoreleasingUnsafeMutablePointer<AnyObject?>, forKeyPath inKeyPath: String) throws
    func mutableArrayValue(forKeyPath keyPath: String) -> NSMutableArray
    func mutableOrderedSetValue(forKeyPath keyPath: String) -> NSMutableOrderedSet
    func mutableSetValue(forKeyPath keyPath: String) -> NSMutableSet
    func value(forUndefinedKey key: String) -> Any?
    func setValue(_ value: Any?, forUndefinedKey key: String)
    func setNilValueForKey(_ key: String)
    func dictionaryWithValues(forKeys keys: [String]) -> [String : Any]
    func setValuesForKeys(_ keyedValues: [String : Any])
    func fileManager(_ fm: FileManager, shouldProceedAfterError errorInfo: [AnyHashable : Any]) -> Bool
    func fileManager(_ fm: FileManager, willProcessPath path: String)
    func perform(_ aSelector: Selector, with anArgument: Any?, afterDelay delay: TimeInterval, inModes modes: [RunLoopMode])
    func perform(_ aSelector: Selector, with anArgument: Any?, afterDelay delay: TimeInterval)
    class func cancelPreviousPerformRequests(withTarget aTarget: Any, selector aSelector: Selector, object anArgument: Any?)
    class func cancelPreviousPerformRequests(withTarget aTarget: Any)
    func attemptRecovery(fromError error: Error, optionIndex recoveryOptionIndex: Int, delegate delegate: Any?, didRecoverSelector didRecoverSelector: Selector?, contextInfo contextInfo: UnsafeMutableRawPointer?)
    func attemptRecovery(fromError error: Error, optionIndex recoveryOptionIndex: Int) -> Bool
    var autoContentAccessingProxy: Any { get }
    class func version() -> Int
    class func setVersion(_ aVersion: Int)
    var classForCoder: AnyClass { get }
    func awakeAfter(using aDecoder: NSCoder) -> Any?
    func provideImageData(_ data: UnsafeMutableRawPointer, bytesPerRow rowbytes: Int, origin x: Int, _ y: Int, size width: Int, _ height: Int, userInfo info: Any?)
}
extension GKScore {
    func challengeComposeController(withMessage message: String?, players players: [GKPlayer]?, completionHandler completionHandler: GameKit.GKChallengeComposeCompletionBlock? = nil) -> UIViewController
    func issueChallenge(toPlayers playerIDs: [String]?, message message: String?)
    class func report(_ scores: [GKScore], withEligibleChallenges challenges: [GKChallenge], withCompletionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)
}
extension GKScore {
    func challengeComposeController(withPlayers playerIDs: [String]?, message message: String?, completionHandler completionHandler: GameKit.GKChallengeComposeCompletionBlock? = nil) -> UIViewController?
}
extension GKScore : CVarArg {
}
extension GKScore : Equatable, Hashable {
    var hashValue: Int { get }
}
extension GKScore {
    init(leaderboardIdentifier identifier: String, forPlayer playerID: String)
    func report(completionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)
    init(category category: String?)
    var playerID: String { get }
    var category: String?
}

Declaration
From
class func report(_ scores: [GKScore], withCompletionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
To
class func report(_ scores: [GKScore], withCompletionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)

Declaration
From
class func report(_ scores: [GKScore], withEligibleChallenges challenges: [GKChallenge], withCompletionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
To
class func report(_ scores: [GKScore], withEligibleChallenges challenges: [GKChallenge], withCompletionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)

Declaration
From
class GKTurnBasedExchange : NSObject {
    var exchangeID: String? { get }
    var sender: GKTurnBasedParticipant? { get }
    var recipients: [GKTurnBasedParticipant]? { get }
    var status: GKTurnBasedExchangeStatus { get }
    var message: String? { get }
    var data: Data? { get }
    var sendDate: Date? { get }
    var timeoutDate: Date? { get }
    var completionDate: Date? { get }
    var replies: [GKTurnBasedExchangeReply]? { get }
    func cancel(withLocalizableMessageKey key: String, arguments arguments: [String], completionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
    func reply(withLocalizableMessageKey key: String, arguments arguments: [String], data data: Data, completionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
    func awakeFromNib()
    func prepareForInterfaceBuilder()
    func accessibilityActivate() -> Bool
    func accessibilityIncrement()
    func accessibilityDecrement()
    func accessibilityScroll(_ direction: UIAccessibilityScrollDirection) -> Bool
    func accessibilityPerformEscape() -> Bool
    func accessibilityPerformMagicTap() -> Bool
    var accessibilityCustomActions: [UIAccessibilityCustomAction]?
    func accessibilityElementDidBecomeFocused()
    func accessibilityElementDidLoseFocus()
    func accessibilityElementIsFocused() -> Bool
    func accessibilityAssistiveTechnologyFocusedIdentifiers() -> Set<String>?
    func accessibilityElementCount() -> Int
    func accessibilityElement(at index: Int) -> Any?
    func index(ofAccessibilityElement element: Any) -> Int
    var accessibilityElements: [Any]?
    var isAccessibilityElement: Bool
    var accessibilityLabel: String?
    var accessibilityHint: String?
    var accessibilityValue: String?
    var accessibilityTraits: UIAccessibilityTraits
    var accessibilityFrame: CGRect
    @NSCopying var accessibilityPath: UIBezierPath?
    var accessibilityActivationPoint: CGPoint
    var accessibilityLanguage: String?
    var accessibilityElementsHidden: Bool
    var accessibilityViewIsModal: Bool
    var shouldGroupAccessibilityChildren: Bool
    var accessibilityNavigationStyle: UIAccessibilityNavigationStyle
    var accessibilityHeaderElements: [Any]?
    var accessibilityCustomRotors: [UIAccessibilityCustomRotor]?
    func performSelector(onMainThread aSelector: Selector, with arg: Any?, waitUntilDone wait: Bool, modes array: [String]?)
    func performSelector(onMainThread aSelector: Selector, with arg: Any?, waitUntilDone wait: Bool)
    func perform(_ aSelector: Selector, on thr: Thread, with arg: Any?, waitUntilDone wait: Bool, modes array: [String]?)
    func perform(_ aSelector: Selector, on thr: Thread, with arg: Any?, waitUntilDone wait: Bool)
    func performSelector(inBackground aSelector: Selector, with arg: Any?)
    class func classForKeyedUnarchiver() -> AnyClass
    var classForKeyedArchiver: AnyClass? { get }
    func replacementObject(for archiver: NSKeyedArchiver) -> Any?
    class func classFallbacksForKeyedArchiver() -> [String]
    class func keyPathsForValuesAffectingValue(forKey key: String) -> Set<String>
    class func automaticallyNotifiesObservers(forKey key: String) -> Bool
    var observationInfo: UnsafeMutableRawPointer?
    func willChangeValue(forKey key: String)
    func didChangeValue(forKey key: String)
    func willChange(_ changeKind: NSKeyValueChange, valuesAt indexes: IndexSet, forKey key: String)
    func didChange(_ changeKind: NSKeyValueChange, valuesAt indexes: IndexSet, forKey key: String)
    func willChangeValue(forKey key: String, withSetMutation mutationKind: NSKeyValueSetMutationKind, using objects: Set<AnyHashable>)
    func didChangeValue(forKey key: String, withSetMutation mutationKind: NSKeyValueSetMutationKind, using objects: Set<AnyHashable>)
    func addObserver(_ observer: NSObject, forKeyPath keyPath: String, options options: NSKeyValueObservingOptions = [], context context: UnsafeMutableRawPointer?)
    func removeObserver(_ observer: NSObject, forKeyPath keyPath: String, context context: UnsafeMutableRawPointer?)
    func removeObserver(_ observer: NSObject, forKeyPath keyPath: String)
    func observeValue(forKeyPath keyPath: String?, of object: Any?, change change: [NSKeyValueChangeKey : Any]?, context context: UnsafeMutableRawPointer?)
    class var accessInstanceVariablesDirectly: Bool { get }
    func value(forKey key: String) -> Any?
    func setValue(_ value: Any?, forKey key: String)
    func validateValue(_ ioValue: AutoreleasingUnsafeMutablePointer<AnyObject?>, forKey inKey: String) throws
    func mutableArrayValue(forKey key: String) -> NSMutableArray
    func mutableOrderedSetValue(forKey key: String) -> NSMutableOrderedSet
    func mutableSetValue(forKey key: String) -> NSMutableSet
    func value(forKeyPath keyPath: String) -> Any?
    func setValue(_ value: Any?, forKeyPath keyPath: String)
    func validateValue(_ ioValue: AutoreleasingUnsafeMutablePointer<AnyObject?>, forKeyPath inKeyPath: String) throws
    func mutableArrayValue(forKeyPath keyPath: String) -> NSMutableArray
    func mutableOrderedSetValue(forKeyPath keyPath: String) -> NSMutableOrderedSet
    func mutableSetValue(forKeyPath keyPath: String) -> NSMutableSet
    func value(forUndefinedKey key: String) -> Any?
    func setValue(_ value: Any?, forUndefinedKey key: String)
    func setNilValueForKey(_ key: String)
    func dictionaryWithValues(forKeys keys: [String]) -> [String : Any]
    func setValuesForKeys(_ keyedValues: [String : Any])
    func fileManager(_ fm: FileManager, shouldProceedAfterError errorInfo: [AnyHashable : Any]) -> Bool
    func fileManager(_ fm: FileManager, willProcessPath path: String)
    func perform(_ aSelector: Selector, with anArgument: Any?, afterDelay delay: TimeInterval, inModes modes: [RunLoopMode])
    func perform(_ aSelector: Selector, with anArgument: Any?, afterDelay delay: TimeInterval)
    class func cancelPreviousPerformRequests(withTarget aTarget: Any, selector aSelector: Selector, object anArgument: Any?)
    class func cancelPreviousPerformRequests(withTarget aTarget: Any)
    func attemptRecovery(fromError error: Error, optionIndex recoveryOptionIndex: Int, delegate delegate: Any?, didRecoverSelector didRecoverSelector: Selector?, contextInfo contextInfo: UnsafeMutableRawPointer?)
    func attemptRecovery(fromError error: Error, optionIndex recoveryOptionIndex: Int) -> Bool
    var autoContentAccessingProxy: Any { get }
    class func version() -> Int
    class func setVersion(_ aVersion: Int)
    var classForCoder: AnyClass { get }
    func awakeAfter(using aDecoder: NSCoder) -> Any?
    func provideImageData(_ data: UnsafeMutableRawPointer, bytesPerRow rowbytes: Int, origin x: Int, _ y: Int, size width: Int, _ height: Int, userInfo info: Any?)
}
extension GKTurnBasedExchange : CVarArg {
}
extension GKTurnBasedExchange : Equatable, Hashable {
    var hashValue: Int { get }
}
To
class GKTurnBasedExchange : NSObject {
    var exchangeID: String? { get }
    var sender: GKTurnBasedParticipant? { get }
    var recipients: [GKTurnBasedParticipant]? { get }
    var status: GKTurnBasedExchangeStatus { get }
    var message: String? { get }
    var data: Data? { get }
    var sendDate: Date? { get }
    var timeoutDate: Date? { get }
    var completionDate: Date? { get }
    var replies: [GKTurnBasedExchangeReply]? { get }
    func cancel(withLocalizableMessageKey key: String, arguments arguments: [String], completionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)
    func reply(withLocalizableMessageKey key: String, arguments arguments: [String], data data: Data, completionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)
    func awakeFromNib()
    func prepareForInterfaceBuilder()
    func accessibilityActivate() -> Bool
    func accessibilityIncrement()
    func accessibilityDecrement()
    func accessibilityScroll(_ direction: UIAccessibilityScrollDirection) -> Bool
    func accessibilityPerformEscape() -> Bool
    func accessibilityPerformMagicTap() -> Bool
    var accessibilityCustomActions: [UIAccessibilityCustomAction]?
    func accessibilityElementDidBecomeFocused()
    func accessibilityElementDidLoseFocus()
    func accessibilityElementIsFocused() -> Bool
    func accessibilityAssistiveTechnologyFocusedIdentifiers() -> Set<String>?
    func accessibilityElementCount() -> Int
    func accessibilityElement(at index: Int) -> Any?
    func index(ofAccessibilityElement element: Any) -> Int
    var accessibilityElements: [Any]?
    var isAccessibilityElement: Bool
    var accessibilityLabel: String?
    var accessibilityHint: String?
    var accessibilityValue: String?
    var accessibilityTraits: UIAccessibilityTraits
    var accessibilityFrame: CGRect
    @NSCopying var accessibilityPath: UIBezierPath?
    var accessibilityActivationPoint: CGPoint
    var accessibilityLanguage: String?
    var accessibilityElementsHidden: Bool
    var accessibilityViewIsModal: Bool
    var shouldGroupAccessibilityChildren: Bool
    var accessibilityNavigationStyle: UIAccessibilityNavigationStyle
    var accessibilityHeaderElements: [Any]?
    var accessibilityCustomRotors: [UIAccessibilityCustomRotor]?
    func performSelector(onMainThread aSelector: Selector, with arg: Any?, waitUntilDone wait: Bool, modes array: [String]?)
    func performSelector(onMainThread aSelector: Selector, with arg: Any?, waitUntilDone wait: Bool)
    func perform(_ aSelector: Selector, on thr: Thread, with arg: Any?, waitUntilDone wait: Bool, modes array: [String]?)
    func perform(_ aSelector: Selector, on thr: Thread, with arg: Any?, waitUntilDone wait: Bool)
    func performSelector(inBackground aSelector: Selector, with arg: Any?)
    class func classForKeyedUnarchiver() -> AnyClass
    var classForKeyedArchiver: AnyClass? { get }
    func replacementObject(for archiver: NSKeyedArchiver) -> Any?
    class func classFallbacksForKeyedArchiver() -> [String]
    class func keyPathsForValuesAffectingValue(forKey key: String) -> Set<String>
    class func automaticallyNotifiesObservers(forKey key: String) -> Bool
    var observationInfo: UnsafeMutableRawPointer?
    func willChangeValue(forKey key: String)
    func didChangeValue(forKey key: String)
    func willChange(_ changeKind: NSKeyValueChange, valuesAt indexes: IndexSet, forKey key: String)
    func didChange(_ changeKind: NSKeyValueChange, valuesAt indexes: IndexSet, forKey key: String)
    func willChangeValue(forKey key: String, withSetMutation mutationKind: NSKeyValueSetMutationKind, using objects: Set<AnyHashable>)
    func didChangeValue(forKey key: String, withSetMutation mutationKind: NSKeyValueSetMutationKind, using objects: Set<AnyHashable>)
    func addObserver(_ observer: NSObject, forKeyPath keyPath: String, options options: NSKeyValueObservingOptions = [], context context: UnsafeMutableRawPointer?)
    func removeObserver(_ observer: NSObject, forKeyPath keyPath: String, context context: UnsafeMutableRawPointer?)
    func removeObserver(_ observer: NSObject, forKeyPath keyPath: String)
    func observeValue(forKeyPath keyPath: String?, of object: Any?, change change: [NSKeyValueChangeKey : Any]?, context context: UnsafeMutableRawPointer?)
    class var accessInstanceVariablesDirectly: Bool { get }
    func value(forKey key: String) -> Any?
    func setValue(_ value: Any?, forKey key: String)
    func validateValue(_ ioValue: AutoreleasingUnsafeMutablePointer<AnyObject?>, forKey inKey: String) throws
    func mutableArrayValue(forKey key: String) -> NSMutableArray
    func mutableOrderedSetValue(forKey key: String) -> NSMutableOrderedSet
    func mutableSetValue(forKey key: String) -> NSMutableSet
    func value(forKeyPath keyPath: String) -> Any?
    func setValue(_ value: Any?, forKeyPath keyPath: String)
    func validateValue(_ ioValue: AutoreleasingUnsafeMutablePointer<AnyObject?>, forKeyPath inKeyPath: String) throws
    func mutableArrayValue(forKeyPath keyPath: String) -> NSMutableArray
    func mutableOrderedSetValue(forKeyPath keyPath: String) -> NSMutableOrderedSet
    func mutableSetValue(forKeyPath keyPath: String) -> NSMutableSet
    func value(forUndefinedKey key: String) -> Any?
    func setValue(_ value: Any?, forUndefinedKey key: String)
    func setNilValueForKey(_ key: String)
    func dictionaryWithValues(forKeys keys: [String]) -> [String : Any]
    func setValuesForKeys(_ keyedValues: [String : Any])
    func fileManager(_ fm: FileManager, shouldProceedAfterError errorInfo: [AnyHashable : Any]) -> Bool
    func fileManager(_ fm: FileManager, willProcessPath path: String)
    func perform(_ aSelector: Selector, with anArgument: Any?, afterDelay delay: TimeInterval, inModes modes: [RunLoopMode])
    func perform(_ aSelector: Selector, with anArgument: Any?, afterDelay delay: TimeInterval)
    class func cancelPreviousPerformRequests(withTarget aTarget: Any, selector aSelector: Selector, object anArgument: Any?)
    class func cancelPreviousPerformRequests(withTarget aTarget: Any)
    func attemptRecovery(fromError error: Error, optionIndex recoveryOptionIndex: Int, delegate delegate: Any?, didRecoverSelector didRecoverSelector: Selector?, contextInfo contextInfo: UnsafeMutableRawPointer?)
    func attemptRecovery(fromError error: Error, optionIndex recoveryOptionIndex: Int) -> Bool
    var autoContentAccessingProxy: Any { get }
    class func version() -> Int
    class func setVersion(_ aVersion: Int)
    var classForCoder: AnyClass { get }
    func awakeAfter(using aDecoder: NSCoder) -> Any?
    func provideImageData(_ data: UnsafeMutableRawPointer, bytesPerRow rowbytes: Int, origin x: Int, _ y: Int, size width: Int, _ height: Int, userInfo info: Any?)
}
extension GKTurnBasedExchange : CVarArg {
}
extension GKTurnBasedExchange : Equatable, Hashable {
    var hashValue: Int { get }
}

Declaration
From
func cancel(withLocalizableMessageKey key: String, arguments arguments: [String], completionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
To
func cancel(withLocalizableMessageKey key: String, arguments arguments: [String], completionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)

Declaration
From
func reply(withLocalizableMessageKey key: String, arguments arguments: [String], data data: Data, completionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
To
func reply(withLocalizableMessageKey key: String, arguments arguments: [String], data data: Data, completionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)

Declaration
From
class GKTurnBasedMatch : NSObject {
    var matchID: String? { get }
    var creationDate: Date? { get }
    var participants: [GKTurnBasedParticipant]? { get }
    var status: GKTurnBasedMatchStatus { get }
    var currentParticipant: GKTurnBasedParticipant? { get }
    var matchData: Data? { get }
    func setLocalizableMessageWithKey(_ key: String, arguments arguments: [String]?)
    var message: String?
    var matchDataMaximumSize: Int { get }
    var exchanges: [GKTurnBasedExchange]? { get }
    var activeExchanges: [GKTurnBasedExchange]? { get }
    var completedExchanges: [GKTurnBasedExchange]? { get }
    var exchangeDataMaximumSize: Int { get }
    var exchangeMaxInitiatedExchangesPerPlayer: Int { get }
    class func find(for request: GKMatchRequest, withCompletionHandler completionHandler: @escaping (GKTurnBasedMatch?, Error?) -> Swift.Void)
    class func loadMatches(completionHandler completionHandler: (@escaping ([GKTurnBasedMatch]?, Error?) -> Swift.Void)? = nil)
    class func load(withID matchID: String, withCompletionHandler completionHandler: (@escaping (GKTurnBasedMatch?, Error?) -> Swift.Void)? = nil)
    func rematch(completionHandler completionHandler: (@escaping (GKTurnBasedMatch?, Error?) -> Swift.Void)? = nil)
    func acceptInvite(completionHandler completionHandler: (@escaping (GKTurnBasedMatch?, Error?) -> Swift.Void)? = nil)
    func declineInvite(completionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
    func remove(completionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
    func loadMatchData(completionHandler completionHandler: (@escaping (Data?, Error?) -> Swift.Void)? = nil)
    func endTurn(withNextParticipants nextParticipants: [GKTurnBasedParticipant], turnTimeout timeout: TimeInterval, match matchData: Data, completionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
    func participantQuitInTurn(with matchOutcome: GKTurnBasedMatchOutcome, nextParticipants nextParticipants: [GKTurnBasedParticipant], turnTimeout timeout: TimeInterval, match matchData: Data, completionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
    func participantQuitOutOfTurn(with matchOutcome: GKTurnBasedMatchOutcome, withCompletionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
    func endMatchInTurn(withMatch matchData: Data, completionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
    func endMatchInTurn(withMatch matchData: Data, scores scores: [GKScore]?, achievements achievements: [GKAchievement]?, completionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
    func saveCurrentTurn(withMatch matchData: Data, completionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
    func saveMergedMatch(_ matchData: Data, withResolvedExchanges exchanges: [GKTurnBasedExchange], completionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
    func sendExchange(to participants: [GKTurnBasedParticipant], data data: Data, localizableMessageKey key: String, arguments arguments: [String], timeout timeout: TimeInterval, completionHandler completionHandler: (@escaping (GKTurnBasedExchange, Error) -> Swift.Void)? = nil)
    func sendReminder(to participants: [GKTurnBasedParticipant], localizableMessageKey key: String, arguments arguments: [String], completionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
    func endTurn(withNextParticipant nextParticipant: GKTurnBasedParticipant, match matchData: Data, completionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
    func participantQuitInTurn(with matchOutcome: GKTurnBasedMatchOutcome, nextParticipant nextParticipant: GKTurnBasedParticipant, match matchData: Data, completionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
    func awakeFromNib()
    func prepareForInterfaceBuilder()
    func accessibilityActivate() -> Bool
    func accessibilityIncrement()
    func accessibilityDecrement()
    func accessibilityScroll(_ direction: UIAccessibilityScrollDirection) -> Bool
    func accessibilityPerformEscape() -> Bool
    func accessibilityPerformMagicTap() -> Bool
    var accessibilityCustomActions: [UIAccessibilityCustomAction]?
    func accessibilityElementDidBecomeFocused()
    func accessibilityElementDidLoseFocus()
    func accessibilityElementIsFocused() -> Bool
    func accessibilityAssistiveTechnologyFocusedIdentifiers() -> Set<String>?
    func accessibilityElementCount() -> Int
    func accessibilityElement(at index: Int) -> Any?
    func index(ofAccessibilityElement element: Any) -> Int
    var accessibilityElements: [Any]?
    var isAccessibilityElement: Bool
    var accessibilityLabel: String?
    var accessibilityHint: String?
    var accessibilityValue: String?
    var accessibilityTraits: UIAccessibilityTraits
    var accessibilityFrame: CGRect
    @NSCopying var accessibilityPath: UIBezierPath?
    var accessibilityActivationPoint: CGPoint
    var accessibilityLanguage: String?
    var accessibilityElementsHidden: Bool
    var accessibilityViewIsModal: Bool
    var shouldGroupAccessibilityChildren: Bool
    var accessibilityNavigationStyle: UIAccessibilityNavigationStyle
    var accessibilityHeaderElements: [Any]?
    var accessibilityCustomRotors: [UIAccessibilityCustomRotor]?
    func performSelector(onMainThread aSelector: Selector, with arg: Any?, waitUntilDone wait: Bool, modes array: [String]?)
    func performSelector(onMainThread aSelector: Selector, with arg: Any?, waitUntilDone wait: Bool)
    func perform(_ aSelector: Selector, on thr: Thread, with arg: Any?, waitUntilDone wait: Bool, modes array: [String]?)
    func perform(_ aSelector: Selector, on thr: Thread, with arg: Any?, waitUntilDone wait: Bool)
    func performSelector(inBackground aSelector: Selector, with arg: Any?)
    class func classForKeyedUnarchiver() -> AnyClass
    var classForKeyedArchiver: AnyClass? { get }
    func replacementObject(for archiver: NSKeyedArchiver) -> Any?
    class func classFallbacksForKeyedArchiver() -> [String]
    class func keyPathsForValuesAffectingValue(forKey key: String) -> Set<String>
    class func automaticallyNotifiesObservers(forKey key: String) -> Bool
    var observationInfo: UnsafeMutableRawPointer?
    func willChangeValue(forKey key: String)
    func didChangeValue(forKey key: String)
    func willChange(_ changeKind: NSKeyValueChange, valuesAt indexes: IndexSet, forKey key: String)
    func didChange(_ changeKind: NSKeyValueChange, valuesAt indexes: IndexSet, forKey key: String)
    func willChangeValue(forKey key: String, withSetMutation mutationKind: NSKeyValueSetMutationKind, using objects: Set<AnyHashable>)
    func didChangeValue(forKey key: String, withSetMutation mutationKind: NSKeyValueSetMutationKind, using objects: Set<AnyHashable>)
    func addObserver(_ observer: NSObject, forKeyPath keyPath: String, options options: NSKeyValueObservingOptions = [], context context: UnsafeMutableRawPointer?)
    func removeObserver(_ observer: NSObject, forKeyPath keyPath: String, context context: UnsafeMutableRawPointer?)
    func removeObserver(_ observer: NSObject, forKeyPath keyPath: String)
    func observeValue(forKeyPath keyPath: String?, of object: Any?, change change: [NSKeyValueChangeKey : Any]?, context context: UnsafeMutableRawPointer?)
    class var accessInstanceVariablesDirectly: Bool { get }
    func value(forKey key: String) -> Any?
    func setValue(_ value: Any?, forKey key: String)
    func validateValue(_ ioValue: AutoreleasingUnsafeMutablePointer<AnyObject?>, forKey inKey: String) throws
    func mutableArrayValue(forKey key: String) -> NSMutableArray
    func mutableOrderedSetValue(forKey key: String) -> NSMutableOrderedSet
    func mutableSetValue(forKey key: String) -> NSMutableSet
    func value(forKeyPath keyPath: String) -> Any?
    func setValue(_ value: Any?, forKeyPath keyPath: String)
    func validateValue(_ ioValue: AutoreleasingUnsafeMutablePointer<AnyObject?>, forKeyPath inKeyPath: String) throws
    func mutableArrayValue(forKeyPath keyPath: String) -> NSMutableArray
    func mutableOrderedSetValue(forKeyPath keyPath: String) -> NSMutableOrderedSet
    func mutableSetValue(forKeyPath keyPath: String) -> NSMutableSet
    func value(forUndefinedKey key: String) -> Any?
    func setValue(_ value: Any?, forUndefinedKey key: String)
    func setNilValueForKey(_ key: String)
    func dictionaryWithValues(forKeys keys: [String]) -> [String : Any]
    func setValuesForKeys(_ keyedValues: [String : Any])
    func fileManager(_ fm: FileManager, shouldProceedAfterError errorInfo: [AnyHashable : Any]) -> Bool
    func fileManager(_ fm: FileManager, willProcessPath path: String)
    func perform(_ aSelector: Selector, with anArgument: Any?, afterDelay delay: TimeInterval, inModes modes: [RunLoopMode])
    func perform(_ aSelector: Selector, with anArgument: Any?, afterDelay delay: TimeInterval)
    class func cancelPreviousPerformRequests(withTarget aTarget: Any, selector aSelector: Selector, object anArgument: Any?)
    class func cancelPreviousPerformRequests(withTarget aTarget: Any)
    func attemptRecovery(fromError error: Error, optionIndex recoveryOptionIndex: Int, delegate delegate: Any?, didRecoverSelector didRecoverSelector: Selector?, contextInfo contextInfo: UnsafeMutableRawPointer?)
    func attemptRecovery(fromError error: Error, optionIndex recoveryOptionIndex: Int) -> Bool
    var autoContentAccessingProxy: Any { get }
    class func version() -> Int
    class func setVersion(_ aVersion: Int)
    var classForCoder: AnyClass { get }
    func awakeAfter(using aDecoder: NSCoder) -> Any?
    func provideImageData(_ data: UnsafeMutableRawPointer, bytesPerRow rowbytes: Int, origin x: Int, _ y: Int, size width: Int, _ height: Int, userInfo info: Any?)
}
extension GKTurnBasedMatch : CVarArg {
}
extension GKTurnBasedMatch : Equatable, Hashable {
    var hashValue: Int { get }
}
To
class GKTurnBasedMatch : NSObject {
    var matchID: String? { get }
    var creationDate: Date? { get }
    var participants: [GKTurnBasedParticipant]? { get }
    var status: GKTurnBasedMatchStatus { get }
    var currentParticipant: GKTurnBasedParticipant? { get }
    var matchData: Data? { get }
    func setLocalizableMessageWithKey(_ key: String, arguments arguments: [String]?)
    var message: String?
    var matchDataMaximumSize: Int { get }
    var exchanges: [GKTurnBasedExchange]? { get }
    var activeExchanges: [GKTurnBasedExchange]? { get }
    var completedExchanges: [GKTurnBasedExchange]? { get }
    var exchangeDataMaximumSize: Int { get }
    var exchangeMaxInitiatedExchangesPerPlayer: Int { get }
    class func find(for request: GKMatchRequest, withCompletionHandler completionHandler: @escaping (GKTurnBasedMatch?, Error?) -> Swift.Void)
    class func loadMatches(completionHandler completionHandler: (([GKTurnBasedMatch]?, Error?) -> Swift.Void)? = nil)
    class func load(withID matchID: String, withCompletionHandler completionHandler: ((GKTurnBasedMatch?, Error?) -> Swift.Void)? = nil)
    func rematch(completionHandler completionHandler: ((GKTurnBasedMatch?, Error?) -> Swift.Void)? = nil)
    func acceptInvite(completionHandler completionHandler: ((GKTurnBasedMatch?, Error?) -> Swift.Void)? = nil)
    func declineInvite(completionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)
    func remove(completionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)
    func loadMatchData(completionHandler completionHandler: ((Data?, Error?) -> Swift.Void)? = nil)
    func endTurn(withNextParticipants nextParticipants: [GKTurnBasedParticipant], turnTimeout timeout: TimeInterval, match matchData: Data, completionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)
    func participantQuitInTurn(with matchOutcome: GKTurnBasedMatchOutcome, nextParticipants nextParticipants: [GKTurnBasedParticipant], turnTimeout timeout: TimeInterval, match matchData: Data, completionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)
    func participantQuitOutOfTurn(with matchOutcome: GKTurnBasedMatchOutcome, withCompletionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)
    func endMatchInTurn(withMatch matchData: Data, completionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)
    func endMatchInTurn(withMatch matchData: Data, scores scores: [GKScore]?, achievements achievements: [GKAchievement]?, completionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)
    func saveCurrentTurn(withMatch matchData: Data, completionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)
    func saveMergedMatch(_ matchData: Data, withResolvedExchanges exchanges: [GKTurnBasedExchange], completionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)
    func sendExchange(to participants: [GKTurnBasedParticipant], data data: Data, localizableMessageKey key: String, arguments arguments: [String], timeout timeout: TimeInterval, completionHandler completionHandler: ((GKTurnBasedExchange, Error) -> Swift.Void)? = nil)
    func sendReminder(to participants: [GKTurnBasedParticipant], localizableMessageKey key: String, arguments arguments: [String], completionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)
    func endTurn(withNextParticipant nextParticipant: GKTurnBasedParticipant, match matchData: Data, completionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)
    func participantQuitInTurn(with matchOutcome: GKTurnBasedMatchOutcome, nextParticipant nextParticipant: GKTurnBasedParticipant, match matchData: Data, completionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)
    func awakeFromNib()
    func prepareForInterfaceBuilder()
    func accessibilityActivate() -> Bool
    func accessibilityIncrement()
    func accessibilityDecrement()
    func accessibilityScroll(_ direction: UIAccessibilityScrollDirection) -> Bool
    func accessibilityPerformEscape() -> Bool
    func accessibilityPerformMagicTap() -> Bool
    var accessibilityCustomActions: [UIAccessibilityCustomAction]?
    func accessibilityElementDidBecomeFocused()
    func accessibilityElementDidLoseFocus()
    func accessibilityElementIsFocused() -> Bool
    func accessibilityAssistiveTechnologyFocusedIdentifiers() -> Set<String>?
    func accessibilityElementCount() -> Int
    func accessibilityElement(at index: Int) -> Any?
    func index(ofAccessibilityElement element: Any) -> Int
    var accessibilityElements: [Any]?
    var isAccessibilityElement: Bool
    var accessibilityLabel: String?
    var accessibilityHint: String?
    var accessibilityValue: String?
    var accessibilityTraits: UIAccessibilityTraits
    var accessibilityFrame: CGRect
    @NSCopying var accessibilityPath: UIBezierPath?
    var accessibilityActivationPoint: CGPoint
    var accessibilityLanguage: String?
    var accessibilityElementsHidden: Bool
    var accessibilityViewIsModal: Bool
    var shouldGroupAccessibilityChildren: Bool
    var accessibilityNavigationStyle: UIAccessibilityNavigationStyle
    var accessibilityHeaderElements: [Any]?
    var accessibilityCustomRotors: [UIAccessibilityCustomRotor]?
    func performSelector(onMainThread aSelector: Selector, with arg: Any?, waitUntilDone wait: Bool, modes array: [String]?)
    func performSelector(onMainThread aSelector: Selector, with arg: Any?, waitUntilDone wait: Bool)
    func perform(_ aSelector: Selector, on thr: Thread, with arg: Any?, waitUntilDone wait: Bool, modes array: [String]?)
    func perform(_ aSelector: Selector, on thr: Thread, with arg: Any?, waitUntilDone wait: Bool)
    func performSelector(inBackground aSelector: Selector, with arg: Any?)
    class func classForKeyedUnarchiver() -> AnyClass
    var classForKeyedArchiver: AnyClass? { get }
    func replacementObject(for archiver: NSKeyedArchiver) -> Any?
    class func classFallbacksForKeyedArchiver() -> [String]
    class func keyPathsForValuesAffectingValue(forKey key: String) -> Set<String>
    class func automaticallyNotifiesObservers(forKey key: String) -> Bool
    var observationInfo: UnsafeMutableRawPointer?
    func willChangeValue(forKey key: String)
    func didChangeValue(forKey key: String)
    func willChange(_ changeKind: NSKeyValueChange, valuesAt indexes: IndexSet, forKey key: String)
    func didChange(_ changeKind: NSKeyValueChange, valuesAt indexes: IndexSet, forKey key: String)
    func willChangeValue(forKey key: String, withSetMutation mutationKind: NSKeyValueSetMutationKind, using objects: Set<AnyHashable>)
    func didChangeValue(forKey key: String, withSetMutation mutationKind: NSKeyValueSetMutationKind, using objects: Set<AnyHashable>)
    func addObserver(_ observer: NSObject, forKeyPath keyPath: String, options options: NSKeyValueObservingOptions = [], context context: UnsafeMutableRawPointer?)
    func removeObserver(_ observer: NSObject, forKeyPath keyPath: String, context context: UnsafeMutableRawPointer?)
    func removeObserver(_ observer: NSObject, forKeyPath keyPath: String)
    func observeValue(forKeyPath keyPath: String?, of object: Any?, change change: [NSKeyValueChangeKey : Any]?, context context: UnsafeMutableRawPointer?)
    class var accessInstanceVariablesDirectly: Bool { get }
    func value(forKey key: String) -> Any?
    func setValue(_ value: Any?, forKey key: String)
    func validateValue(_ ioValue: AutoreleasingUnsafeMutablePointer<AnyObject?>, forKey inKey: String) throws
    func mutableArrayValue(forKey key: String) -> NSMutableArray
    func mutableOrderedSetValue(forKey key: String) -> NSMutableOrderedSet
    func mutableSetValue(forKey key: String) -> NSMutableSet
    func value(forKeyPath keyPath: String) -> Any?
    func setValue(_ value: Any?, forKeyPath keyPath: String)
    func validateValue(_ ioValue: AutoreleasingUnsafeMutablePointer<AnyObject?>, forKeyPath inKeyPath: String) throws
    func mutableArrayValue(forKeyPath keyPath: String) -> NSMutableArray
    func mutableOrderedSetValue(forKeyPath keyPath: String) -> NSMutableOrderedSet
    func mutableSetValue(forKeyPath keyPath: String) -> NSMutableSet
    func value(forUndefinedKey key: String) -> Any?
    func setValue(_ value: Any?, forUndefinedKey key: String)
    func setNilValueForKey(_ key: String)
    func dictionaryWithValues(forKeys keys: [String]) -> [String : Any]
    func setValuesForKeys(_ keyedValues: [String : Any])
    func fileManager(_ fm: FileManager, shouldProceedAfterError errorInfo: [AnyHashable : Any]) -> Bool
    func fileManager(_ fm: FileManager, willProcessPath path: String)
    func perform(_ aSelector: Selector, with anArgument: Any?, afterDelay delay: TimeInterval, inModes modes: [RunLoopMode])
    func perform(_ aSelector: Selector, with anArgument: Any?, afterDelay delay: TimeInterval)
    class func cancelPreviousPerformRequests(withTarget aTarget: Any, selector aSelector: Selector, object anArgument: Any?)
    class func cancelPreviousPerformRequests(withTarget aTarget: Any)
    func attemptRecovery(fromError error: Error, optionIndex recoveryOptionIndex: Int, delegate delegate: Any?, didRecoverSelector didRecoverSelector: Selector?, contextInfo contextInfo: UnsafeMutableRawPointer?)
    func attemptRecovery(fromError error: Error, optionIndex recoveryOptionIndex: Int) -> Bool
    var autoContentAccessingProxy: Any { get }
    class func version() -> Int
    class func setVersion(_ aVersion: Int)
    var classForCoder: AnyClass { get }
    func awakeAfter(using aDecoder: NSCoder) -> Any?
    func provideImageData(_ data: UnsafeMutableRawPointer, bytesPerRow rowbytes: Int, origin x: Int, _ y: Int, size width: Int, _ height: Int, userInfo info: Any?)
}
extension GKTurnBasedMatch : CVarArg {
}
extension GKTurnBasedMatch : Equatable, Hashable {
    var hashValue: Int { get }
}

Declaration
From
func acceptInvite(completionHandler completionHandler: (@escaping (GKTurnBasedMatch?, Error?) -> Swift.Void)? = nil)
To
func acceptInvite(completionHandler completionHandler: ((GKTurnBasedMatch?, Error?) -> Swift.Void)? = nil)

Declaration
From
func declineInvite(completionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
To
func declineInvite(completionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)

Declaration
From
func endMatchInTurn(withMatch matchData: Data, completionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
To
func endMatchInTurn(withMatch matchData: Data, completionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)

Declaration
From
func endMatchInTurn(withMatch matchData: Data, scores scores: [GKScore]?, achievements achievements: [GKAchievement]?, completionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
To
func endMatchInTurn(withMatch matchData: Data, scores scores: [GKScore]?, achievements achievements: [GKAchievement]?, completionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)

Declaration
From
func endTurn(withNextParticipants nextParticipants: [GKTurnBasedParticipant], turnTimeout timeout: TimeInterval, match matchData: Data, completionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
To
func endTurn(withNextParticipants nextParticipants: [GKTurnBasedParticipant], turnTimeout timeout: TimeInterval, match matchData: Data, completionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)

Declaration
From
class func load(withID matchID: String, withCompletionHandler completionHandler: (@escaping (GKTurnBasedMatch?, Error?) -> Swift.Void)? = nil)
To
class func load(withID matchID: String, withCompletionHandler completionHandler: ((GKTurnBasedMatch?, Error?) -> Swift.Void)? = nil)

Declaration
From
func loadMatchData(completionHandler completionHandler: (@escaping (Data?, Error?) -> Swift.Void)? = nil)
To
func loadMatchData(completionHandler completionHandler: ((Data?, Error?) -> Swift.Void)? = nil)

Declaration
From
class func loadMatches(completionHandler completionHandler: (@escaping ([GKTurnBasedMatch]?, Error?) -> Swift.Void)? = nil)
To
class func loadMatches(completionHandler completionHandler: (([GKTurnBasedMatch]?, Error?) -> Swift.Void)? = nil)

Declaration
From
func participantQuitInTurn(with matchOutcome: GKTurnBasedMatchOutcome, nextParticipants nextParticipants: [GKTurnBasedParticipant], turnTimeout timeout: TimeInterval, match matchData: Data, completionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
To
func participantQuitInTurn(with matchOutcome: GKTurnBasedMatchOutcome, nextParticipants nextParticipants: [GKTurnBasedParticipant], turnTimeout timeout: TimeInterval, match matchData: Data, completionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)

Declaration
From
func participantQuitOutOfTurn(with matchOutcome: GKTurnBasedMatchOutcome, withCompletionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
To
func participantQuitOutOfTurn(with matchOutcome: GKTurnBasedMatchOutcome, withCompletionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)

Declaration
From
func rematch(completionHandler completionHandler: (@escaping (GKTurnBasedMatch?, Error?) -> Swift.Void)? = nil)
To
func rematch(completionHandler completionHandler: ((GKTurnBasedMatch?, Error?) -> Swift.Void)? = nil)

Declaration
From
func remove(completionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
To
func remove(completionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)

Declaration
From
func saveCurrentTurn(withMatch matchData: Data, completionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
To
func saveCurrentTurn(withMatch matchData: Data, completionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)

Declaration
From
func saveMergedMatch(_ matchData: Data, withResolvedExchanges exchanges: [GKTurnBasedExchange], completionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
To
func saveMergedMatch(_ matchData: Data, withResolvedExchanges exchanges: [GKTurnBasedExchange], completionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)

Declaration
From
func sendExchange(to participants: [GKTurnBasedParticipant], data data: Data, localizableMessageKey key: String, arguments arguments: [String], timeout timeout: TimeInterval, completionHandler completionHandler: (@escaping (GKTurnBasedExchange, Error) -> Swift.Void)? = nil)
To
func sendExchange(to participants: [GKTurnBasedParticipant], data data: Data, localizableMessageKey key: String, arguments arguments: [String], timeout timeout: TimeInterval, completionHandler completionHandler: ((GKTurnBasedExchange, Error) -> Swift.Void)? = nil)

Declaration
From
func sendReminder(to participants: [GKTurnBasedParticipant], localizableMessageKey key: String, arguments arguments: [String], completionHandler completionHandler: (@escaping (Error?) -> Swift.Void)? = nil)
To
func sendReminder(to participants: [GKTurnBasedParticipant], localizableMessageKey key: String, arguments arguments: [String], completionHandler completionHandler: ((Error?) -> Swift.Void)? = nil)

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