@class NSMutableArray; @interface _DKSyncBlockCompositeOperation : _DKSyncCompositeOperation { struct os_unfair_lock_s { unsigned int _os_unfair_lock_opaque; } _lock; } @property (readonly) NSMutableArray *blocks; - (void)main; - (BOOL)isAsynchronous; - (id)executionBlocks; - (void).cxx_destruct; @end