code: func New(exec utilexec.Interface) Interface {
  	handle, err := libipvs.New("")
  	if err != nil {
  		klog.Errorf("IPVS interface can't be initialized, error: %v", err)
  		return nil
  	}
  	return &runner{
  		exec:       exec,
  		ipvsHandle: handle,
  	}
  }
docs: // New returns a new Interface which will call ipvs APIs.