@class VSServerTTSClient, VSTimeoutCondition, NSError, VSVoiceAsset, VSVoiceResourceAsset, NSCondition, VSSpeechRequest, NSObject, VSInstrumentMetrics, VSSiriServerConfiguration, VSSpeechInternalSettings; @protocol OS_dispatch_queue, VSOspreyTTSCoreDelegate; @interface VSOspreyTTSCore : NSOperation @property (retain, nonatomic) VSServerTTSClient *serverTTSClient; @property (retain, nonatomic) VSSiriServerConfiguration *serverConfig; @property (retain, nonatomic) VSSpeechInternalSettings *internalSettings; @property (nonatomic) double bufferDurationLimit; @property (retain, nonatomic) VSTimeoutCondition *timeoutCondition; @property (nonatomic) BOOL didReceiveAudio; @property (retain, nonatomic) NSCondition *didReceiveAudioCondition; @property (retain, nonatomic) NSObject<OS_dispatch_queue> *delegateCallbackQueue; @property (readonly, nonatomic) VSSpeechRequest *request; @property (weak, nonatomic) id<VSOspreyTTSCoreDelegate> delegate; @property (weak, nonatomic) VSInstrumentMetrics *instrumentMetrics; @property (retain, nonatomic) NSError *error; @property (retain, nonatomic) VSVoiceAsset *voice; @property (retain, nonatomic) VSVoiceResourceAsset *voiceResource; - (void)main; - (id)initWithRequest:(id)a0; - (void).cxx_destruct; - (void)cancel; - (double)timeout; - (void)performRoundTripOspreyTTS; - (void)performStreamingOspreyTTS; - (void)waitUntilFinishedIfAudioReceivedWithin:(double)a0; @end