@class NSArray, CATOperation, CATOperationQueue; @interface CRKSequentialOperation : CATOperation @property (nonatomic) unsigned long long frontOfQueue; @property (readonly, nonatomic) NSArray *operations; @property (readonly, nonatomic) CATOperationQueue *queue; @property (retain, nonatomic) CATOperation *failedOperation; + (id)sequentialOperationWithOperations:(id)a0; - (id)init; - (void)main; - (BOOL)isAsynchronous; - (void).cxx_destruct; - (void)cancel; - (void)enqueueFront; - (void)frontOperationDidFinish:(id)a0; - (id)initWithSequentialOperations:(id)a0 queue:(id)a1; @end