@interface GameCenterUI.GKMultiplayerStepperController : NSObject {
    void /* unknown type, empty encoding */ value;
    void /* unknown type, empty encoding */ valueChangedHandler;
    void /* unknown type, empty encoding */ minimumValue;
    void /* unknown type, empty encoding */ maximumValue;
}

- (id)init;
- (void).cxx_destruct;
- (id)initWithMinimumValue:(long long)a0 maximumValue:(long long)a1 initialValue:(long long)a2 valueChangedHandler:(id /* block */)a3;

@end