code: func (op *Operator) AreaDelete(areaID string, q *WriteOptions) (*WriteMeta, error) {
  	r := op.c.newRequest("DELETE", "/v1/operator/area/"+areaID)
  	r.setWriteOptions(q)
  	rtt, resp, err := requireOK(op.c.doRequest(r))
  	if err != nil {
  		return nil, err
  	}
  	defer resp.Body.Close()
  
  	wm := &WriteMeta{}
  	wm.RequestTime = rtt
  	return wm, nil
  }
docs: // AreaDelete deletes the given network area.