@class NSObject;
@protocol OS_dispatch_queue, AVOutputDeviceDiscoverySessionImpl;
@interface AVOutputDeviceDiscoverySessionInternal : NSObject {
NSObject<OS_dispatch_queue> *ivarAccessQueue;
id<AVOutputDeviceDiscoverySessionImpl> impl;
long long discoveryMode;
BOOL onlyDiscoversBluetoothDevices;
}
@end