System/Library/PrivateFrameworks/VisualVoicemail.framework
VMOperation.h
@class NSProgress, NSObject;
@protocol OS_dispatch_queue;
@interface VMOperation : NSOperation
@property (readonly, nonatomic) NSObject<OS_dispatch_queue> *queue;
@property (retain, nonatomic) NSProgress *progress;
- (id)init;
- (void)performSynchronousBlock:(id /* block */)a0;
- (void).cxx_destruct;
- (void)configureProgressWithUnitCount:(long long)a0;
@end