| @import ObjectiveC; | |
| @class NSArray; | |
| @interface MyPredicate : NSObject | |
| + (nonnull MyPredicate *)truePredicate; | |
| + (nonnull MyPredicate *)not; | |
| + (nonnull MyPredicate *)and:(nonnull NSArray *)subpredicates; | |
| + (nonnull MyPredicate *)or:(nonnull NSArray *)subpredicates; | |
| @end |