@class OPTTSPartialTextToSpeechStreamingResponse, OPTTSFinalTextToSpeechStreamingResponse, OPTTSBeginTextToSpeechStreamingResponse, NSObject;
@protocol FLTBFBufferAccessor, NSCopying;
@interface OPTTSMutableTextToSpeechRouterStreamingStreamingResponse : OPTTSTextToSpeechRouterStreamingStreamingResponse
@property (nonatomic) long long content_type;
@property (copy, nonatomic) OPTTSBeginTextToSpeechStreamingResponse *contentAsOPTTSBeginTextToSpeechStreamingResponse;
@property (copy, nonatomic) OPTTSPartialTextToSpeechStreamingResponse *contentAsOPTTSPartialTextToSpeechStreamingResponse;
@property (copy, nonatomic) OPTTSFinalTextToSpeechStreamingResponse *contentAsOPTTSFinalTextToSpeechStreamingResponse;
@property (copy, nonatomic) NSObject<FLTBFBufferAccessor, NSCopying> *content;
+ (Class)content_mutableClassForType:(long long)a0;
+ (long long)content_typeForMutableObject:(id)a0;
+ (long long)content_typeForObject:(id)a0;
- (void)setContent:(id)a0;
- (id)init;
- (id)copyWithZone:(struct _NSZone { } *)a0;
@end