/// danger | Peligro

Nunca almacenes contraseñas de usuarios en texto plano. Siempre almacena un "hash seguro" que puedas verificar luego.

Si no lo sabes, aprenderás qué es un "hash de contraseña" en los [capítulos de seguridad](security/simple-oauth2.md#password-hashing){.internal-link target=_blank}.

///

## Múltiples modelos { #multiple-models }

    assert response.headers["WWW-Authenticate"] == 'Basic realm="simple"'


def test_security_http_basic_invalid_credentials():
    response = client.get(
        "/users/me", headers={"Authorization": "Basic notabase64token"}
    )
    assert response.status_code == 401, response.text
    assert response.headers["WWW-Authenticate"] == 'Basic realm="simple"'
    assert response.json() == {"detail": "Not authenticated"}

```Python hl_lines="1  4"
{!../../docs_src/python_types/tutorial009_py39.py!}
```

Usar `Optional[str]` en lugar de solo `str` te permitirá al editor ayudarte a detectar errores donde podrías estar asumiendo que un valor siempre es un `str`, cuando en realidad también podría ser `None`.

`Optional[Something]` es realmente un atajo para `Union[Something, None]`, son equivalentes.

        Artifact artifact = new DefaultArtifact(
                "sample.group",
                "sample-art",
                VersionRange.createFromVersion("1.0"),
                "scope",
                "jar",
                "classifier",
                null);
        artifact.setFile(getTestFile("target/sample-art"));

        StringWagon wagon = (StringWagon) wagonManager.getWagon("string");

   *
   * <ul>
   *   <li>The visible constructor or visible static factory method with the most parameters is used
   *       to construct the sample instances. In case of tie, the candidate constructors or
   *       factories are tried one after another until one can be used to construct sample
   *       instances.
   *   <li>For the constructor or static factory method used to construct instances, it's checked

      Arrays.asList(
        "a=b; Path=/c; Domain=example.com; Max-Age=5; Secure; HttpOnly",
        "a= ; Path=/c; Domain=example.com; Max-Age=5; Secure; HttpOnly",
        "a=b;          Domain=example.com; Max-Age=5; Secure; HttpOnly",
        "a=b; Path=/c;                     Max-Age=5; Secure; HttpOnly",
        "a=b; Path=/c; Domain=example.com;            Secure; HttpOnly",
        "a=b; Path=/c; Domain=example.com; Max-Age=5;         HttpOnly",

  <modelVersion>4.0.0</modelVersion>

  <groupId>ut.simple</groupId>
  <artifactId>parent</artifactId>
  <version>1.0</version>
  <packaging>pom</packaging>

  <name>Simple Unit Test Parent</name>

  <dependencyManagement>
    <dependencies>
      <dependency>
        <groupId>ut.simple</groupId>
        <artifactId>dependency</artifactId>
        <version>1.0</version>

     */
    public static final String ISO_DATETIME_FORMAT = "yyyy-MM-dd'T'HH:mm:ss.SSS'Z'";

    /**
     * The feature for secure processing in XML.
     */
    public static final String FEATURE_SECURE_PROCESSING = "http://javax.xml.XMLConstants/feature/secure-processing";

    /**
     * The feature for external general entities in XML.
     */

import okhttp3.internal.toImmutableList

/**
 * A specification for a connection to an origin server. For simple connections, this is the
 * server's hostname and port. If an explicit proxy is requested (or [no proxy][Proxy.NO_PROXY] is
 * explicitly requested), this also includes that proxy information. For secure connections the
 * address also includes the SSL socket factory, hostname verifier, and certificate pinner.
 *

<details><summary>Example 1: Two role policy providers</summary>

Sample environment variables:

```
MINIO_IDENTITY_OPENID_DISPLAY_NAME="my first openid"
MINIO_IDENTITY_OPENID_CONFIG_URL=http://myopenid.com/.well-known/openid-configuration
MINIO_IDENTITY_OPENID_CLIENT_ID="minio-client-app"