// Find the _Retval node and the loop cond node.
  Node* ret_node = nullptr;
  for (Node* n : g->nodes()) {
    if (n->type_string() == "_Retval") {
      if (ret_node) {
        return errors::Internal("Multiple return node for loop cond function ",
                                loop_cond_func->name(), ": ",
                                ret_node->DebugString(), " and ",
                                n->DebugString());

			secretManager = secret.NewCachingSecretManager(
				klet.kubeClient, manager.GetObjectTTLFromNodeFunc(klet.GetNode))
			configMapManager = configmap.NewCachingConfigMapManager(
				klet.kubeClient, manager.GetObjectTTLFromNodeFunc(klet.GetNode))
		case kubeletconfiginternal.GetChangeDetectionStrategy:
			secretManager = secret.NewSimpleSecretManager(klet.kubeClient)

  for (const auto& ret_node_and_idx : llvm::enumerate(*ret_nodes)) {
    auto& ret_node = ret_node_and_idx.value();
    if (ret_node.node == nullptr)
      return errors::InvalidArgument("Graph missing _Retval at index ",
                                     ret_node_and_idx.index());

    TF_ASSIGN_OR_RETURN(auto type,
                        InferInputType(*ret_node.node, /*idx=*/0, builder));
    ret_types.push_back(type);
  }

			defer testKubelet.Cleanup()
			kubelet := testKubelet.kubelet
			// Ensure we capture actions on the heartbeat client only.
			// We don't set it to nil or GetNode() doesn't read from nodeLister.
			kubelet.kubeClient = &fake.Clientset{}
			kubeClient := testKubelet.fakeKubeClient

			node := &v1.Node{
				ObjectMeta: metav1.ObjectMeta{