code: func (d *DaemonSetPrepuller) DeleteFunc(component string) error {
  	dsName := addPrepullPrefix(component)
  	if err := apiclient.DeleteDaemonSetForeground(d.client, metav1.NamespaceSystem, dsName); err != nil {
  		return errors.Wrapf(err, "unable to cleanup the DaemonSet used for prepulling %s", component)
  	}
  	fmt.Printf("[upgrade/prepull] Prepulled image for component %s.\n", component)
  	return nil
  }
docs: // DeleteFunc deletes the DaemonSet used for making the image available on every relevant node