code: func (a *API) DeleteMetricCluster(cfg *MetricCluster) (bool, error) {
  	if cfg == nil {
  		return false, fmt.Errorf("Invalid metric cluster config [nil]")
  	}
  	return a.DeleteMetricClusterByCID(CIDType(&cfg.CID))
  }
docs: // DeleteMetricCluster deletes passed metric cluster.