@protocol CRKConcreteIDSMessageDidSendSubscriptionDelegate; @interface CRKConcreteIDSMessageDidSendSubscription : NSObject <CRKResumable, CRKCancelable> @property (copy, nonatomic) id /* block */ handler; @property (nonatomic, getter=isResumed) BOOL resumed; @property (weak, nonatomic) id<CRKConcreteIDSMessageDidSendSubscriptionDelegate> delegate; - (id)initWithHandler:(id /* block */)a0; - (void)resume; - (void).cxx_destruct; - (void)cancel; - (void)receiveMessageIdentifier:(id)a0 didSucceed:(BOOL)a1 error:(id)a2; @end