@class NSError, NSDate;
@interface WFOperation : NSOperation {
BOOL _finished;
NSDate *_start;
}
@property (copy, nonatomic) NSError *error;
- (BOOL)isReady;
- (void)finish;
- (void)start;
- (BOOL)isFinished;
- (id)description;
- (void).cxx_destruct;
@end