### Установка `pydantic-settings` { #install-pydantic-settings }

Сначала убедитесь, что вы создали [виртуальное окружение](../virtual-environments.md){.internal-link target=_blank}, активировали его, а затем установили пакет `pydantic-settings`:

<div class="termy">

```console
$ pip install pydantic-settings

  )
  fun parts(): List<Part> = parts

  @Throws(IOException::class)
  override fun contentLength(): Long {
    var result = contentLength
    if (result == -1L) {
      result = writeOrCountBytes(null, true)
      contentLength = result
    }
    return result
  }

  @Throws(IOException::class)
  override fun writeTo(sink: BufferedSink) {
    writeOrCountBytes(sink, false)
  }

* <a href="https://cdn.jsdelivr.net/npm/swagger-ui-dist@5/swagger-ui-bundle.js" class="external-link" target="_blank">`swagger-ui-bundle.js`</a>
* <a href="https://cdn.jsdelivr.net/npm/swagger-ui-dist@5/swagger-ui.css" class="external-link" target="_blank">`swagger-ui.css`</a>

Y **ReDoc** utiliza el archivo:

* <a href="https://cdn.jsdelivr.net/npm/redoc@2/bundles/redoc.standalone.js" class="external-link" target="_blank">`redoc.standalone.js`</a>

/// tip | Consejo

El callback real es solo un request HTTP.

Cuando implementes el callback tú mismo, podrías usar algo como <a href="https://www.python-httpx.org" class="external-link" target="_blank">HTTPX</a> o <a href="https://requests.readthedocs.io/" class="external-link" target="_blank">Requests</a>.

///

## Escribe el código de documentación del callback { #write-the-callback-documentation-code }

# テスト

<a href="https://www.starlette.dev/testclient/" class="external-link" target="_blank">Starlette</a> のおかげで、**FastAPI** アプリケーションのテストは簡単で楽しいものになっています。

<a href="https://www.python-httpx.org" class="external-link" target="_blank">HTTPX</a> がベースなので、非常に使いやすく直感的です。

これを使用すると、**FastAPI** と共に <a href="https://docs.pytest.org/" class="external-link" target="_blank">pytest</a> を直接利用できます。

## `TestClient` を使用

`TestClient` をインポートします。

* <a href="https://cdn.jsdelivr.net/npm/swagger-ui-dist@5/swagger-ui-bundle.js" class="external-link" target="_blank">`swagger-ui-bundle.js`</a>
* <a href="https://cdn.jsdelivr.net/npm/swagger-ui-dist@5/swagger-ui.css" class="external-link" target="_blank">`swagger-ui.css`</a>

E o **ReDoc** usa o arquivo:

* <a href="https://cdn.jsdelivr.net/npm/redoc@2/bundles/redoc.standalone.js" class="external-link" target="_blank">`redoc.standalone.js`</a>

Houveram mudanças no próprio Pydantic para que isso fosse possível.

As capturas de tela anteriores foram capturas no <a href="https://code.visualstudio.com" class="external-link" target="_blank">Visual Studio Code</a>.

Mas você terá o mesmo suporte do editor no <a href="https://www.jetbrains.com/pycharm/" class="external-link" target="_blank">PyCharm</a> e na maioria dos editores Python:

<img src="/img/tutorial/body/image05.png">

/// tip | Dica

 */
@GwtCompatible
@NullMarked
public class MapsTransformValuesUnmodifiableIteratorTest extends MapInterfaceTest<String, String> {
  // TODO(jlevy): Move shared code of this class and MapsTransformValuesTest
  // to a superclass.

  public MapsTransformValuesUnmodifiableIteratorTest() {
    super(true, true, false /*supportsPut*/, true, true, false);
  }

  private static class UnmodifiableIteratorMap<K, V> extends ForwardingMap<K, V> {

from fastapi.security.utils import get_authorization_scheme_param
from pydantic import BaseModel
from starlette.requests import Request
from starlette.status import HTTP_401_UNAUTHORIZED


class HTTPBasicCredentials(BaseModel):
    """
    The HTTP Basic credentials given as the result of using `HTTPBasic` in a
    dependency.

    Read more about it in the

/**
 * Admin action for Key Match management.
 *
 */
public class AdminKeymatchAction extends FessAdminAction {

    /**
     * Default constructor.
     */
    public AdminKeymatchAction() {
        super();
    }

    /** The role name for key match administration. */
    public static final String ROLE = "admin-keymatch";

    /** Logger for this class. */