System/Library/PrivateFrameworks/SiriSpeechSynthesis.framework

QSSMutableAlignment.h

NSObject
>
QSSAlignment

@class NSArray;

@interface QSSMutableAlignment : QSSAlignment

@property (copy, nonatomic) NSArray *index;

- (id)init;
- (id)copyWithZone:(struct _NSZone { } *)a0;

@end