)

	if options.XdsViaAgents {
		responses, err = queryDebugSynczViaAgents(all, dr, istioNamespace, kubeClient, centralOpts, options)
	} else {
		// Self-administered case.  Find all Istiods in revision using K8s, port-forward and call each in turn
		responses, err = queryEachShard(all, dr, istioNamespace, kubeClient, centralOpts)
	}
	if err != nil {
		if _, ok := err.(ControlPlaneNotFoundError); ok {