System/Library/PrivateFrameworks/AXSpringBoardServerInstance.framework

AXSBServerVolumeControl.h

NSObject
>
UIAccessibilitySafeCategory
>
__AXSBServerVolumeControl_super

@interface AXSBServerVolumeControl : __AXSBServerVolumeControl_super

+ (Class)safeCategoryBaseClass;
+ (id)safeCategoryTargetClassName;

- (void)_effectiveVolumeChanged:(id)a0;
- (void)_presentVolumeHUDWithVolume:(float)a0;

@end