#import "TLDocumentAttribute.h" //documentAttributeAudio flags:# is_voice:flags.10?true duration:int title:flags.0?string performer:flags.1?string waveform:flags.2?bytes = DocumentAttribute; @interface TLDocumentAttribute$documentAttributeAudio : TLDocumentAttribute @property (nonatomic) int32_t flags; @property (nonatomic) bool is_voice; @property (nonatomic) int32_t duration; @property (nonatomic, strong) NSString *title; @property (nonatomic, strong) NSString *performer; @property (nonatomic, strong) NSData *waveform; @end