if (!llvm::hasSingleElement(body))
    return parser.emitError(loc) << "expects a single block region";

  // Get the results type from the terminator type inside the graph.
  Operation &fetch = body.back().back();
  if (!isa<FetchOp>(fetch))
    return parser.emitError(loc) << "expects a tf_executor.fetch terminator";

  // The return value of the graph operation are the non-control operands of

   * answer, which ours does not.
   */

  @Override
  public Object[] toArray() {
    return snapshot().toArray();
  }

  @Override
  @SuppressWarnings("nullness") // b/192354773 in our checker affects toArray declarations
  public <T extends @Nullable Object> T[] toArray(T[] array) {
    return snapshot().toArray(array);
  }

  /*
   * We'd love to use 'new ArrayList(this)' or 'list.addAll(this)', but

    }

    /**
     * Expects the given request to be made. Releases the request as soon as it is received.
     */
    public void expect(String expectedCall) {
        addNonBlockingHandler(Collections.singleton(doGet(expectedCall)));
    }

    /**

	// effect, the scan skips the first and last value.
	//
	// Although the scan proceeds left to right, and changes the type
	// values in a way that would appear to affect the computations
	// later in the scan, there is actually no problem. A change in the
	// current value can only affect the value to its immediate right,
	// and only affect it if it is ES or CS. But the current value can

// It is the caller's responsibility to close f when finished.
// Closing l does not affect f, and closing f does not affect l.
//
// The returned os.File's file descriptor is different from the
// connection's. Attempting to change properties of the original
// using this duplicate may or may not have the desired effect.
func (l *UnixListener) File() (f *os.File, err error) {
	if !l.ok() {
		return nil, syscall.EINVAL

	metricsName = "kubelet_pod_start_sli_duration_seconds"
)

func TestNoEvents(t *testing.T) {
	t.Run("metrics registered; no incoming events", func(t *testing.T) {

		// expects no metrics in the output
		wants := ""

		metrics.Register()

		tracker := &basicPodStartupLatencyTracker{
			pods: map[types.UID]*perPodState{},
		}

		{
			name: "tainted node, pods with a single constraint",
			nodeFn: func() *v1.Node {
				node := st.MakeNode().Name("fake-node").Obj()
				node.Spec.Taints = []v1.Taint{
					{Key: "foo", Effect: v1.TaintEffectNoSchedule},
					{Key: "bar", Effect: v1.TaintEffectPreferNoSchedule},
				}
				return node
			},
			pods: []*v1.Pod{
				st.MakePod().Name("p1").Obj(),
				st.MakePod().Name("p2").Toleration("foo").Obj(),

     */
    void addBroken(String path) {
        allow(path, true, null, broken())
    }

    /**
     * Expects one GET request, which fails with a 500 status code
     */
    void expectGetBroken(String path) {
        expect(path, false, ['GET'], broken())
    }

    /**
     *  Expects one GET request, which fails with a 401 status code.
     */
    void expectGetUnauthorized(String path) {

   * answer, which ours does not.
   */

  @Override
  public Object[] toArray() {
    return snapshot().toArray();
  }

  @Override
  @SuppressWarnings("nullness") // b/192354773 in our checker affects toArray declarations
  public <T extends @Nullable Object> T[] toArray(T[] array) {
    return snapshot().toArray(array);
  }

  /*
   * We'd love to use 'new ArrayList(this)' or 'list.addAll(this)', but

	// Add shims for legacy vet flags to enable existing
	// scripts that run vet to continue to work.
	_ = flag.Bool("source", false, "no effect (deprecated)")
	_ = flag.Bool("v", false, "no effect (deprecated)")
	_ = flag.Bool("all", false, "no effect (deprecated)")
	_ = flag.String("tags", "", "no effect (deprecated)")
	for old, new := range vetLegacyFlags {
		newFlag := flag.Lookup(new)
		if newFlag != nil && flag.Lookup(old) == nil {