code: func (h *Handle) QdiscChange(qdisc Qdisc) error {
  	return h.qdiscModify(unix.RTM_NEWQDISC, 0, qdisc)
  }
docs: // QdiscChange will change a qdisc in place
  // Equivalent to: `tc qdisc change $qdisc`
  // The parent and handle MUST NOT be changed.