// Wait for the first task to be started in the background. It will block until we explicitly
    // stop it.
    blockingCallable.waitForStart();

    // Give the second task a chance to (incorrectly) start up while the first task is running.
    assertThat(future2.isDone()).isFalse();

    // Stop the first task. The second task should then run.
    blockingCallable.stop();
    executor.shutdown();

This gives you a lot of **flexibility**. You can return any data type, override any data declaration or validation, etc.

It also gives you a lot of **responsibility**. You have to make sure that the data you return is correct, in the correct format, that it can be serialized, etc.

## Using the `jsonable_encoder` in a `Response` { #using-the-jsonable-encoder-in-a-response }

    if (dividend >= 0) {
      return dividend / divisor;
    }

    /*
     * Otherwise, approximate the quotient, check, and correct if necessary. Our approximation is
     * guaranteed to be either exact or one less than the correct value. This follows from fact that
     * floor(floor(x)/i) == floor(x/i) for any real x and integer i != 0. The proof is not quite
     * trivial.
     */

        assertNotNull(authenticator);
    }

    @Test
    public void test_defaultSettings_emailAddressCorrect() throws Exception {
        // Test that the email typo fix is correct: support@@example.com -> ******@****.***
        Map<String, Object> defaultSettings = createDefaultSettings();

        // Verify email addresses are correctly formatted (no double @)

    }

    @Test
    public void test_constructor() {
        assertNotNull(target, "Constructor should create instance");
        assertTrue(target instanceof SystemMonitorTarget, "Instance should be of correct type");
        assertTrue(target instanceof MonitorTarget, "Instance should be a MonitorTarget");
        assertTrue(target instanceof TimeoutTarget, "Instance should be a TimeoutTarget");
    }

    @Test

## Recap { #recap }

You can add multiple body parameters to your *path operation function*, even though a request can only have a single body.

But **FastAPI** will handle it, give you the correct data in your function, and validate and document the correct schema in the *path operation*.

You can also declare singular values to be received as part of the body.

const (
	// Pending - replication is pending.
	Pending StatusType = "PENDING"

	// Completed - replication completed ok.
	Completed StatusType = "COMPLETED"

	// CompletedLegacy was called "COMPLETE" incorrectly.
	CompletedLegacy StatusType = "COMPLETE"

	// Failed - replication failed.
	Failed StatusType = "FAILED"

	// Replica - this is a replica.
	Replica StatusType = "REPLICA"
)

			return err
		}
		return nil
	})
	if err != nil {
		t.Errorf("WithSingleConnection should work, but got err %v", err)
	}

	if actualName != expectedName {
		t.Errorf("WithSingleConnection() method should get correct value, expect: %v, got %v", expectedName, actualName)
	}
}

func getSetSQL(driverName string) (string, string) {
	switch driverName {
	case mysql.Dialector{}.Name():
		return "SET @testName := ?", "SELECT @testName"

    // we create a test suite containing a test for every FuturesTest test method and we
    // set it as the name of the test.  Then in runTest we can reflectively load and invoke the
    // corresponding method on FuturesTest in the correct classloader.
    TestSuite suite = new TestSuite(AggregateFutureStateFallbackAtomicHelperTest.class.getName());
    for (Method method : FuturesTest.class.getDeclaredMethods()) {
      if (Modifier.isPublic(method.getModifiers())

      assertErrorMessage(e, obj + " must not be Object#equals to null");
      return;
    }
    fail("Should get equal to null error");
  }

  /** Test proper handling where an object incorrectly tests for an incompatible class */
  public void testInvalidEqualsIncompatibleClass() {
    Object obj = new InvalidEqualsIncompatibleClassObject();
    equalsTester.addEqualityGroup(obj);
    try {