@class FTAudioDescription, NSString, NSArray, NSData, FTTextToSpeechFeature, FTTextToSpeechMeta, FTTextToSpeechResponseDevData;
@interface FTMutableTextToSpeechResponse : FTTextToSpeechResponse
@property (copy, nonatomic) NSString *speech_id;
@property (copy, nonatomic) NSString *session_id;
@property (nonatomic) int error_code;
@property (copy, nonatomic) NSString *error_str;
@property (nonatomic) long long audio_type;
@property (nonatomic) int sample_rate;
@property (copy, nonatomic) NSData *audio;
@property (copy, nonatomic) FTAudioDescription *decoder_description;
@property (copy, nonatomic) FTAudioDescription *playback_description;
@property (copy, nonatomic) NSArray *word_timing_info;
@property (copy, nonatomic) FTTextToSpeechMeta *meta_info;
@property (copy, nonatomic) FTTextToSpeechFeature *feature;
@property (copy, nonatomic) FTTextToSpeechResponseDevData *dev_data;
- (id)init;
- (id)copyWithZone:(struct _NSZone { } *)a0;
- (void)audio:(id /* block */)a0;
@end