Forward to Class

#import <Foundation/Foundation.h>

@interface SomeObject : NSObject

+ (void)classMethod;

@end

@implementation SomeObject

+ (void)classMethod {
    NSLog(@"Hello World.");
}

- (id)forwardingTargetForSelector:(SEL)aSelector {
    return [self class];
}

@end

int main(int argc, char *argv[]) {
    @autoreleasepool {
        id anInstance = [[SomeObject alloc] init];
        [anInstance classMethod];
    }
}