System/Library/PrivateFrameworks/UIKitServices.framework

UISMutableDeviceContext.h

NSObject
>
UISDeviceContext

@interface UISMutableDeviceContext : UISDeviceContext

- (id)copyWithZone:(struct _NSZone { } *)a0;
- (id)_dictionaryWithOnlyValidKeysFromDictionary:(id)a0;
- (void)setDeviceInfoValue:(id)a0 forKey:(id)a1;

@end