code: func (runner *runner) DelEntry(entry string, set string) error {
  	if _, err := runner.exec.Command(IPSetCmd, "del", set, entry).CombinedOutput(); err != nil {
  		return fmt.Errorf("error deleting entry %s: from set: %s, error: %v", entry, set, err)
  	}
  	return nil
  }
docs: // DelEntry is used to delete the specified entry from the set.