#import @interface MTMsgDetailedInfoMessage : NSObject @property (nonatomic, readonly) int64_t responseMessageId; @property (nonatomic, readonly) int32_t responseLength; @property (nonatomic, readonly) int32_t status; - (instancetype)initWithResponseMessageId:(int64_t)responseMessageId responseLength:(int32_t)responseLength status:(int32_t)status; @end @interface MTMsgDetailedResponseInfoMessage : MTMsgDetailedInfoMessage @property (nonatomic, readonly) int64_t requestMessageId; - (instancetype)initWithRequestMessageId:(int64_t)requestMessageId responseMessageId:(int64_t)responseMessageId responseLength:(int32_t)responseLength status:(int32_t)status; @end