public virtual void GenerateCGImageAsynchronously (CoreMedia.CMTime requestedTime, AVAssetImageGenerateAsynchronouslyForTimeCompletionHandler handler);

public AVAudioSinkNode (AVAudioSinkNodeReceiverHandler2 receiverHandler);
public AVAudioSinkNode (AVAudioSinkNodeReceiverHandlerRaw receiverHandler);

public sealed delegate AVAssetImageGenerateAsynchronouslyForTimeCompletionHandler : System.MulticastDelegate {
	// constructors
	public AVAssetImageGenerateAsynchronouslyForTimeCompletionHandler (object object, IntPtr method);
	// methods
	public virtual System.IAsyncResult BeginInvoke (CoreGraphics.CGImage imageRef, CoreMedia.CMTime actualTime, Foundation.NSError error, System.AsyncCallback callback, object object);
	public virtual void EndInvoke (System.IAsyncResult result);
	public virtual void Invoke (CoreGraphics.CGImage imageRef, CoreMedia.CMTime actualTime, Foundation.NSError error);
}

public sealed delegate AVAudioSinkNodeReceiverHandler2 : System.MulticastDelegate {
	// constructors
	public AVAudioSinkNodeReceiverHandler2 (object object, IntPtr method);
	// methods
	public virtual System.IAsyncResult BeginInvoke (AudioToolbox.AudioTimeStamp timestamp, uint frameCount, AudioToolbox.AudioBuffers inputData, System.AsyncCallback callback, object object);
	public virtual int EndInvoke (System.IAsyncResult result);
	public virtual int Invoke (AudioToolbox.AudioTimeStamp timestamp, uint frameCount, AudioToolbox.AudioBuffers inputData);
}

public sealed delegate AVAudioSinkNodeReceiverHandlerRaw : System.MulticastDelegate {
	// constructors
	public AVAudioSinkNodeReceiverHandlerRaw (object object, IntPtr method);
	// methods
	public virtual System.IAsyncResult BeginInvoke (IntPtr timestamp, uint frameCount, IntPtr inputData, System.AsyncCallback callback, object object);
	public virtual int EndInvoke (System.IAsyncResult result);
	public virtual int Invoke (IntPtr timestamp, uint frameCount, IntPtr inputData);
}

public string[] AllModes { get; }
public string CurrentMode { get; }

public CFRunLoopExitReason RunInMode (string mode, double seconds, bool returnAfterSourceHandled);

protected T GetStrongDictionary<T> (NSString key, System.Func<NSDictionary,T> createStrongDictionary);

public static bool GetSkipBackupAttribute (string filename);
public static bool GetSkipBackupAttribute (string filename, out NSError error);
public static NSError SetSkipBackupAttribute (string filename, bool skipBackup);

public virtual void GetFileProviderConnection (System.Action<NSXpcConnection,Foundation.NSError> completionHandler);
public virtual System.Threading.Tasks.Task<NSXpcConnection> GetFileProviderConnectionAsync ();

public static NSUrl CreateFileUrl (string path);
public static NSUrl CreateFileUrl (string path, bool isDir);

public static const string ServiceManagementLibrary = "/System/Library/Frameworks/ServiceManagement.framework/ServiceManagement";

public class SMAppService : Foundation.NSObject {
	// constructors
	protected SMAppService (Foundation.NSObjectFlag t);
	protected SMAppService (IntPtr handle);
	// properties
	public override IntPtr ClassHandle { get; }
	public static SMAppService MainApp { get; }
	public virtual SMAppServiceStatus Status { get; }
	// methods
	public static SMAppService CreateAgentService (string plistName);
	public static SMAppService CreateDaemonService (string plistName);
	public static SMAppService CreateLoginItemService (string identifier);
	public static SMAppServiceStatus GetStatus (Foundation.NSUrl legacyUrl);
	public static void OpenSystemSettingsLoginItems ();
	public bool Register ();
	public virtual bool Register (out Foundation.NSError error);
	public bool Unregister ();
	public virtual void Unregister (System.Action<Foundation.NSError> handler);
	public virtual bool Unregister (out Foundation.NSError error);
	public virtual System.Threading.Tasks.Task UnregisterAsync ();
}

[Serializable]
public enum SMAppServiceStatus {
	Enabled = 1,
	NotFound = 3,
	NotRegistered = 0,
	RequiresApproval = 2,
}