@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