@class NSString, SVXSpeechSynthesisUtteranceInfo, NSArray; @interface _SVXSpeechSynthesisUtteranceInfoMutation : NSObject <SVXSpeechSynthesisUtteranceInfoMutating> { SVXSpeechSynthesisUtteranceInfo *_baseModel; NSString *_utterance; NSArray *_wordTimings; struct _mutationFlags { unsigned char isDirty : 1; unsigned char hasUtterance : 1; unsigned char hasWordTimings : 1; } _mutationFlags; } @property (readonly) unsigned long long hash; @property (readonly) Class superclass; @property (readonly, copy) NSString *description; @property (readonly, copy) NSString *debugDescription; - (id)init; - (id)generate; - (void).cxx_destruct; - (void)setUtterance:(id)a0; - (id)initWithBaseModel:(id)a0; - (void)setWordTimings:(id)a0; @end