storyboard id or segue

storyboard id

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NFSActivityWorkoutView *vc = [self.storyboard instantiateViewControllerWithIdentifier:@"NFSActivityWorkoutView"];

 [self presentViewController:vc animated:YES completion:nil];

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segue name

    [self performSelector:@selector(sendingNext) withObject:nil afterDelay:1.0];

- (void)sendingNext {

    [self performSegueWithIdentifier:@"Workout" sender:self];

}

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