System/Library/Frameworks/GameplayKit.framework
GKRule.h
@interface GKRule : NSObject
@property (nonatomic) long long salience;
+ (id)ruleWithBlockPredicate:(id /* block */)a0 action:(id /* block */)a1;
+ (id)ruleWithPredicate:(id)a0 assertingFact:(id)a1 grade:(float)a2;
+ (id)ruleWithPredicate:(id)a0 retractingFact:(id)a1 grade:(float)a2;
- (BOOL)evaluatePredicateWithSystem:(id)a0;
- (void)performActionWithSystem:(id)a0;
@end