echo -n "${out}" | xxd -r -p | base64 -w 0
}

# Helper for configuring iptables rules for metadata server.
#
# $1 is the command flag (-I or -D).
# $2 is the firewall action (LOG or REJECT).
# $3 is the prefix for log output.
# $4 is "!" to optionally invert the uid range.
function gce-metadata-fw-helper {
  local -r command="$1"
  local action="$2"
  local -r prefix="$3"

	"k8s.io/client-go/tools/record"
	volerr "k8s.io/cloud-provider/volume/errors"
	storagehelpers "k8s.io/component-helpers/storage/volume"
	csitrans "k8s.io/csi-translation-lib"
	"k8s.io/klog/v2"
	v1helper "k8s.io/kubernetes/pkg/apis/core/v1/helper"
	"k8s.io/kubernetes/pkg/features"
	kevents "k8s.io/kubernetes/pkg/kubelet/events"
	"k8s.io/kubernetes/pkg/volume"
	"k8s.io/kubernetes/pkg/volume/util"
	"k8s.io/kubernetes/pkg/volume/util/hostutil"

  source "${KUBE_ROOT}/cluster/gce/${NODE_OS_DISTRIBUTION}/node-helper.sh"
else
  echo "Cannot operate on cluster using node os distro: ${NODE_OS_DISTRIBUTION}" >&2
  exit 1
fi

source "${KUBE_ROOT}/cluster/gce/windows/node-helper.sh"

if [[ "${MASTER_OS_DISTRIBUTION}" == "trusty" || "${MASTER_OS_DISTRIBUTION}" == "gci" || "${MASTER_OS_DISTRIBUTION}" == "ubuntu" ]]; then

	podutil "k8s.io/kubernetes/pkg/api/v1/pod"
	"k8s.io/kubernetes/pkg/api/v1/resource"
	podshelper "k8s.io/kubernetes/pkg/apis/core/pods"
	v1helper "k8s.io/kubernetes/pkg/apis/core/v1/helper"
	v1qos "k8s.io/kubernetes/pkg/apis/core/v1/helper/qos"
	"k8s.io/kubernetes/pkg/features"
	"k8s.io/kubernetes/pkg/fieldpath"
	"k8s.io/kubernetes/pkg/kubelet/cm"
	kubecontainer "k8s.io/kubernetes/pkg/kubelet/container"

	if obj.Spec.VolumeName != "" {
		accessModes = helper.GetAccessModesAsString(obj.Status.AccessModes)
		storage = obj.Status.Capacity[api.ResourceStorage]
		capacity = storage.String()
	}

	if obj.Spec.VolumeMode != nil {
		volumeMode = string(*obj.Spec.VolumeMode)
	}

	row.Cells = append(row.Cells, obj.Name, string(phase), obj.Spec.VolumeName, capacity, accessModes,

	t.Helper()
	return newControllerFromClientWithClock(ctx, t, kubeClient, resyncPeriod, realClock)
}

func newControllerFromClientWithClock(ctx context.Context, t *testing.T, kubeClient clientset.Interface, resyncPeriod controller.ResyncPeriodFunc, clock clock.WithTicker) (*Controller, informers.SharedInformerFactory) {
	t.Helper()

			numCanSelect++
		} else if canBlock {
			// Select needs to communicate with another goroutine.
			cas := &info[helpers[x.Choose(len(helpers))]]
			helper = cas.helper
			cas.canSelect = true
			numCanSelect++
		}

		// Permute cases and case info.
		// Doing too much here makes the exhaustive loop
		// too exhausting, so just do two swaps.

}

func newGatewayProxy() *model.Proxy {
	return &model.Proxy{Type: model.Router, Metadata: &model.NodeMetadata{}}
}

// Helper function to extract TLS context from a cluster
func getTLSContext(t *testing.T, c *cluster.Cluster) *tls.UpstreamTlsContext {
	t.Helper()
	if c.TransportSocket == nil {
		return nil
	}
	tlsContext := &tls.UpstreamTlsContext{}

    return pool_params;
  }

  return std::nullopt;
}

namespace {

using ::mlir::tf_saved_model::kTfSavedModelExportedNamesAttr;
using ::mlir::tf_saved_model::kTfSavedModelIndexPathAttr;

// Helper struct that wraps inputs/outputs of a single SignatureDef.
struct SignatureDefData {
  // Note, we are using maps here to make order deterministic
  // for easily testing only.

	Leaf  string
	Graph []trustGraphEdge
}

func genCertEdge(t *testing.T, subject string, key crypto.Signer, mutateTmpl func(*Certificate), certType int, issuer *Certificate, signer crypto.Signer) *Certificate {
	t.Helper()

	serial, err := rand.Int(rand.Reader, big.NewInt(100))
	if err != nil {
		t.Fatalf("failed to generate test serial: %s", err)
	}
	tmpl := &Certificate{
		SerialNumber: serial,