Here we are declaring a `UserIn` model, it will contain a plaintext password:

{* ../../docs_src/response_model/tutorial002_py310.py hl[7,9] *}

/// info

To use `EmailStr`, first install <a href="https://github.com/JoshData/python-email-validator" class="external-link" target="_blank">`email-validator`</a>.

                                            <c:forEach var="item" items="${jspFileNameItems}">
                                                <la:option value="${f:u(item.first)}">${f:h(item.second)}</la:option>
                                            </c:forEach>
                                        </la:select>
                                    </div>
                                </div>

    private final List<UpgradeStrategy> strategies;

    @Inject
    public StrategyOrchestrator(List<UpgradeStrategy> strategies) {
        // DI container automatically sorts strategies by priority (highest first)
        this.strategies = strategies;
    }

    /**
     * Executes all applicable upgrade strategies in priority order.
     * Each strategy is checked for applicability before execution.
     *

        Map<String, Lifecycle> phaseToLifecycleMap = new HashMap<>();

        for (Lifecycle lifecycle : getLifeCycles()) {
            for (String phase : lifecycle.getPhases()) {
                // The first definition wins.
                Lifecycle original = phaseToLifecycleMap.put(phase, lifecycle);
                if (original != null && logger.isWarnEnabled()) {
                    logger.warn(

Now that we have seen how to use `Path` and `Query`, let's see more advanced uses of request body declarations.

## Mix `Path`, `Query` and body parameters { #mix-path-query-and-body-parameters }

First, of course, you can mix `Path`, `Query` and request body parameter declarations freely and **FastAPI** will know what to do.

And you can also declare body parameters as optional, by setting the default to `None`:

   * the more direct await* methods, but should be reliable enough in practice to avoid flakiness of
   * this test. (And if it isn't, we'd like to know about it first!)
   */
  public void testAwaitFullGc() {
    CountDownLatch finalizerRan = new CountDownLatch(1);
    WeakReference<Object> ref =
        new WeakReference<Object>(
            new Object() {

.card-footer,.card-group>.card:not(:last-child) .card-img-bottom{border-bottom-right-radius:0}.card-group>.card:not(:first-child){border-top-left-radius:0;border-bottom-left-radius:0}.card-group>.card:not(:first-child) .card-header,.card-group>.card:not(:first-child) .card-img-top{border-top-left-radius:0}.card-group>.card:not(:first-child) .card-footer,.card-group>.card:not(:first-child) .card-img-bottom{border-bottom-left-radius:0}}.accordion{--bs-accordion-color:var(--bs-body-color);--bs-accor...

            CommonServerMessageBlock request = mock(CommonServerMessageBlock.class);
            CommonServerMessageBlock response = mock(CommonServerMessageBlock.class);

            // Sign with first digest
            digest1.sign(data, 0, data.length, request, response);

            // Verify with second digest (simulating server verification)

        assertNull(retrieved[0]);
    }

    public void test_multipleOperationsOnSameKey() {
        // Test multiple operations on the same key
        ExtractData data = new ExtractData();

        // First operation
        data.putValue("key", "value1");
        assertEquals("value1", data.getValues("key")[0]);

        // Second operation (overwrite)
        data.putValue("key", "value2");

    private String playerLoc;

    /**
     * The duration of the video in seconds.
     * Value must be from 1 to 28800 (8 hours).
     */
    private String duration;

    /**
     * The date the video was first published, in W3C format.
     */
    private String publicationDate;

    /**
     * An optional arbitrary string tag describing the video.
     * Maximum 32 characters.
     */
    private String category;