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- [self willChangeValueForKey:@"isFinished"];
- [self willChangeValueForKey:@"isExecuting"]
- finished = YES;
- executing = NO;
- [self didChangeValueForKey:@"isFinished"];
- [self didChangeValueForKey:@"isExecuting"];
- - (BOOL) isFinished{
- return(finished);
- }
- -(void)call
- {
- [self willChangeValueForKey:@"isVip"];
- [self didChangeValueForKey:@"isVip"];
- }
- -(void)isVip
- {
- NSLog(@"Im vip");
- }
- [self willChangeValueForKey:@"isFinished"];
- [self willChangeValueForKey:@"isExecuting"]
- finished = YES;
- executing = NO;
- [self didChangeValueForKey:@"isFinished"];
- [self didChangeValueForKey:@"isExecuting"];
- [self setFinished:YES];
- [self setExecuting:NO];
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