@class NSMutableArray; @interface REUpNextSetNode : NSObject @property (readonly, nonatomic) id item; @property (retain, nonatomic) REUpNextSetNode *parent; @property (retain, nonatomic) NSMutableArray *children; @property (nonatomic) unsigned long long rank; - (void)remove; - (id)rootNode; - (void).cxx_destruct; - (id)initWithItem:(id)a0; - (void)join:(id)a0; @end