#import @interface MTFutureSalt : NSObject @property (nonatomic, readonly) int32_t validSince; @property (nonatomic, readonly) int32_t validUntil; @property (nonatomic, readonly) int64_t salt; - (instancetype)initWithValidSince:(int32_t)validSince validUntil:(int32_t)validUntil salt:(int64_t)salt; @end @interface MTFutureSaltsMessage : NSObject @property (nonatomic, readonly) int64_t requestMessageId; @property (nonatomic, readonly) int32_t now; @property (nonatomic, strong, readonly) NSArray *salts; - (instancetype)initWithRequestMessageId:(int64_t)requestMessageId now:(int32_t)now salts:(NSArray *)salts; @end