```
@interface SomeClass
- (void)funcA;
+ (void)funcB;
@end

@interface Test
@property(nonatomic, assign) Class aClass;
@end

@implementation Test
- (void) test {
    // that's ok
    [[aClass new] funcA];
    // but how to call class method?
    [aClass funcB] ?
}
@end

```

XCode note "Instance method 'function' is being used on 'Class' which is not in the root class"