* returned.
   *
   * @throws IllegalArgumentException if another entry in the bucket has the same key and {@code
   *     throwIfDuplicateKeys} is true
   * @throws BucketOverflowException if this bucket has too many entries, which may indicate a hash
   *     flooding attack
   */
  @CanIgnoreReturnValue

- The feature gate "DefaultHostNetworkHostPortsInPodTemplates" has been removed.  This behavior was deprecated in v1.28, and has had no reports of issues since. ([#124417](https://github.com/kubernetes/kubernetes/pull/124417), [@thockin](https://github.com/thockin))

    /**
     * Saves the session.
     *
     * @param sessionId The session ID.
     */
    void saveSession(String sessionId);

    /**
     * Checks if a URL has been visited.
     *
     * @param urlQueue The URL queue.
     * @return true if the URL has been visited, otherwise false.
     */
    boolean visited(QUEUE urlQueue);

    /**
     * Generates URL queues.
     *

{* ../../docs_src/response_model/tutorial004_py310.py hl[9,11:12] *}

* `description: Union[str, None] = None` (or `str | None = None` in Python 3.10) has a default of `None`.
* `tax: float = 10.5` has a default of `10.5`.
* `tags: List[str] = []` has a default of an empty list: `[]`.

but you might want to omit them from the result if they were not actually stored.

* Kubelets will no longer set `externalID` in their node spec. This feature has been deprecated since v1.1. ([#61877](https://github.com/kubernetes/kubernetes/pull/61877), [@mikedanese](https://github.com/mikedanese))

        assertTrue(exception instanceof Exception);
        assertTrue(exception instanceof Throwable);
    }

    public void test_serialVersionUID() {
        // Test that the exception has a serialVersionUID field
        FessUserNotFoundException exception1 = new FessUserNotFoundException("user1");
        FessUserNotFoundException exception2 = new FessUserNotFoundException("user2");

- es-image has been updated to Elasticsearch 6.7.2. ([#77765](https://github.com/kubernetes/kubernetes/pull/77765))
- metrics-server has been updated to v0.3.3. ([#77950](https://github.com/kubernetes/kubernetes/pull/77950))
- ip-masq-agent has been updated to v2.4.1. ([#77844](https://github.com/kubernetes/kubernetes/pull/77844))
- addon-manager has been updated to v9.0.1 ([#77282](https://github.com/kubernetes/kubernetes/pull/77282))

.isValid&&e&&i.validateOnKeyUp(c,d),this},a.fn.validateOnKeyUp=function(b,c){return this.each(function(){var d=a(this);d.valAttr("has-keyup-event")||d.valAttr("has-keyup-event","true").bind("keyup.validation",function(a){9!==a.keyCode&&d.validateInputOnBlur(b,c,!1,"keyup")})}),this},a.fn.removeKeyUpValidation=function(){return this.each(function(){a(this).valAttr("has-keyup-event",!1).unbind("keyup.validation")}),this},a.fn.valAttr=function(a,b){return b===c?this.attr("data-validation-"+a):b===!...

If you use this model as an input like here:

{* ../../docs_src/separate_openapi_schemas/tutorial001_py310.py ln[1:15] hl[14] *}

...then the `description` field will **not be required**. Because it has a default value of `None`.

### Input Model in Docs { #input-model-in-docs }

You can confirm that in the docs, the `description` field doesn't have a **red asterisk**, it's not marked as required:

<div class="screenshot">

///

## Override the default exception handlers { #override-the-default-exception-handlers }

**FastAPI** has some default exception handlers.

These handlers are in charge of returning the default JSON responses when you `raise` an `HTTPException` and when the request has invalid data.

You can override these exception handlers with your own.