@class NSMutableArray, NFMutexLock; @interface FCMultiStepFetchOperation : FCFetchOperation @property (retain, nonatomic) NSMutableArray *steps; @property (retain, nonatomic) NSMutableArray *stepResults; @property (retain, nonatomic) NFMutexLock *accessLock; - (void)customizeChildOperation:(id)a0 forFetchStep:(SEL)a1; - (id)completeFetchOperation; - (id)init; - (void)performOperation; - (void)addNonCriticalFetchStep:(SEL)a0; - (void)addFetchStep:(SEL)a0; - (void)_performNextStep; - (void).cxx_destruct; @end