System/Library/Frameworks/VideoSubscriberAccount.framework

VSBase64DataValueTransformer.h

NSObject
>
NSValueTransformer

@interface VSBase64DataValueTransformer : NSValueTransformer

+ (BOOL)allowsReverseTransformation;
+ (Class)transformedValueClass;

- (id)reverseTransformedValue:(id)a0;
- (id)transformedValue:(id)a0;

@end