System/Library/PrivateFrameworks/VisualVoicemail.framework/IMAP.framework

_VFConcatenatingObservable.h

Download _VFConcatenatingObservable.h

1. NSObject
2. >
3. VFObservable

@interface _VFConcatenatingObservable : VFObservable

+ (void)subscribeObserver:(id)a0 toObservables:(id)a1 unless:(id)a2;

@end