- If the parent directory of the file specified in the `--audit-log-path` argument does not exist, Kubernetes now creates it. ([#111227](https://github.com/kubernetes/kubernetes/pull/111227), [@vpnachev](https://github.com/vpnachev)) [SIG Auth]

ector","join","querySelectorAll","qsaError","removeAttribute","select","keys","cache","key","cacheLength","shift","markFunction","assert","el","createInputPseudo","createButtonPseudo","createDisabledPseudo","isDisabled","createPositionalPseudo","argument","matchIndexes","subWindow","webkitMatchesSelector","msMatchesSelector","defaultView","top","addEventListener","getById","getElementsByName","disconnectedMatch","cssHas","querySelector","filter","attrId","getAttributeNode","tag","className","inp...

from unicorn import UnicornMiddleware

app = FastAPI()

app.add_middleware(UnicornMiddleware, some_config="rainbow")
```

`app.add_middleware()` recibe una clase de middleware como primer argumento y cualquier argumento adicional que se le quiera pasar al middleware.

## Middlewares integrados

**FastAPI** incluye varios middlewares para casos de uso común, veremos a continuación cómo usarlos.

/// note | Detalles Técnicos

	{
		"argumented macro invoked without arguments",
		lines(
			"#define X() foo ",
			"X()",
			"X",
		),
		"foo.\n.X.\n",
	},
	{
		"multiline macro without arguments",
		lines(
			"#define A 1\\",
			"\t2\\",
			"\t3",
			"before",
			"A",
			"after",
		),
		"before.\n.1.\n.2.\n.3.\n.after.\n",
	},
	{
		"multiline macro with arguments",
		lines(
			"#define A(a, b, c) a\\",
			"\tb\\",

### Federation

     * @param property The value of the property. (NotNull)
     */
    protected void assertPropertyNotNull(String property) {
        if (property == null) {
            String msg = "The argument 'property' for message should not be null.";
            throw new IllegalArgumentException(msg);
        }
    }

- Fix a regression where kubeadm bails out with a fatal error when an optional version command line argument is supplied to the "kubeadm upgrade plan" command ([#94421](https://github.com/kubernetes/kubernetes/pull/94421), [@rosti](https://github.com/rosti)) [SIG Cluster Lifecycle]

### Other (Cleanup or Flake)

{* ../../docs_src/extra_models/tutorial003_py310.py hl[1,14:15,18:20,33] *}


### `Union` en Python 3.10

En este ejemplo pasamos `Union[PlaneItem, CarItem]` como el valor del argumento `response_model`.

Porque lo estamos pasando como un **valor a un argumento** en lugar de ponerlo en una **anotación de tipo**, tenemos que usar `Union` incluso en Python 3.10.

Si estuviera en una anotación de tipo podríamos haber usado la barra vertical, como:

ector","join","querySelectorAll","qsaError","removeAttribute","select","keys","cache","key","cacheLength","shift","markFunction","assert","el","createInputPseudo","createButtonPseudo","createDisabledPseudo","isDisabled","createPositionalPseudo","argument","matchIndexes","subWindow","webkitMatchesSelector","msMatchesSelector","defaultView","top","addEventListener","getById","getElementsByName","disconnectedMatch","cssHas","querySelector","filter","attrId","getAttributeNode","tag","className","inp...