%Enter, %ctl_0 = Enter(%Const) name("while/Enter") {T = i32, frame_name = "while/while_context", is_constant = false, parallel_iterations = 10 : i64} : (tensor<i32>) -> (tensor<*xi32>)
    %NextIteration, %ctl_1 = NextIteration(%Add) name("while/NextIteration") {T = i32} : (tensor<*xi32>) -> (tensor<*xi32>)

        tracker.leaveDynamicCall(entryPoint2)
        tracker.leaveDynamicCall(entryPoint1)

        then:
        log == ["enter", entryPoint1, "enter", entryPoint2, "leave", entryPoint2, "leave", entryPoint1]
    }

    def "throws exception on mismatched calls"() {
        when:
        tracker.enterDynamicCall(new Object())
        tracker.leaveDynamicCall(new Object())

        then:

            def a = it.askQuestion("enter value", "value")
            def b = it.askQuestion("enter another value", "value")
            [a, b]
        }

        then:
        1 * outputEventBroadcaster.onOutput(_ as UserInputRequestEvent)
        1 * outputEventBroadcaster.onOutput(_) >> { TextQuestionPromptEvent event ->
            assert event.question == "enter value"
        }

Enter username:
Enter password:
Welcome, secret-user!

        params {
            text("gitUserEmail", "", label = "Git user.email Configuration", description = "Enter the git 'user.email' configuration to commit change under", display = ParameterDisplay.PROMPT, allowEmpty = true)
            text("confirmationCode", "", label = "Confirmation Code", description = "Enter the value 'startCycle' (no quotes) to confirm the promotion", display = ParameterDisplay.PROMPT, allowEmpty = false)

#!/bin/bash

echo Enter username:
read username
echo Enter password:
if [ -t 0 ] ; then # if connected to a terminal, do not echo the password input
    stty -echo
    read password
    stty echo
    echo
else
    read password
fi

if [ "$username" = "secret-user" ] && [ "$password" = "secret-password" ] ; then
    echo "Welcome, $username!"
else
    echo "Bad credentials!"
    exit 1

public class RelativePathTracker implements RelativePathSupplier {
    private final Deque<String> segments = new ArrayDeque<>();
    private String rootName;

    public void enter(FileSystemLocationSnapshot snapshot) {
        enter(snapshot.getName());
    }

    public void enter(String name) {
        if (rootName == null) {
            rootName = name;
        } else {
            segments.addLast(name);
        }
    }

    %2:2 = tf_executor.Enter %1#0 frame "while/while_context" parallel_iterations 10 : (tensor<i32>) -> (tensor<*xi32>, !tf_executor.control) {device = "", T = "tfdtype$DT_INT32"} loc("while/Enter")
    %3:3 = tf_executor.Merge %2#0, %0#0 : tensor<*xi32> {device = "", N = 2, T = "tfdtype$DT_INT32"} loc("while/Merge")

  }
  func.return %result : tensor<*xf32>
}

// CHECK-LABEL: func @enter(%{{.*}}: tensor<*xf32>, %{{.*}}: i1) -> tensor<*xf32> {
func.func @enter(%arg0: tensor<*xf32>, %arg1: i1) -> tensor<*xf32> {
  %result = tf_executor.graph {
// CHECK: tf_executor.Enter %{{.*}} frame "some/fra\22me" : tensor<*xf32>
    %res:2 = tf_executor.Enter %arg0 frame "some/fra\"me" : tensor<*xf32>
    tf_executor.fetch %res#0 : tensor<*xf32>
  }

TEST(NodeMatchers, Attrs) {
  Scope root = Scope::NewRootScope().ExitOnError();
  Output enter = ops::internal::Enter(
      root.WithOpName("enter"),
      ops::Placeholder(root.WithOpName("data"), DT_FLOAT), "frame_name",
      ops::internal::Enter::Attrs{}.IsConstant(true));
  EXPECT_THAT(enter.node(), NodeWith(Attr("is_constant", true)));
  EXPECT_EQ(Explain(enter.node(), NodeWith(Attr("is_constant", false))),