and the
    [FastAPI docs for Response Model](https://fastapi.tiangolo.com/tutorial/response-model/).

    **Note**: `ujson` is not included with FastAPI and must be installed
    separately, e.g. `pip install ujson`.
    """

    def render(self, content: Any) -> bytes:
        assert ujson is not None, "ujson must be installed to use UJSONResponse"
        return ujson.dumps(content, ensure_ascii=False).encode("utf-8")

    `NullPointerException: bio == null`.


## Version 4.9.0

_2020-09-11_

**With this release, `okhttp-tls` no longer depends on Bouncy Castle and doesn't install the
Bouncy Castle security provider.** If you still need it, you can do it yourself:

```
Security.addProvider(BouncyCastleProvider())
```

You will also need to configure this dependency:

```

# 模板 { #templates }

**FastAPI** 支持多种模板引擎。

Flask 等工具使用的 Jinja2 是最用的模板引擎。

在 Starlette 的支持下，**FastAPI** 应用可以直接使用工具轻易地配置 Jinja2。

## 安装依赖项 { #install-dependencies }

确保你创建一个[虚拟环境](../virtual-environments.md)，激活它，并安装 `jinja2`：

<div class="termy">

```console
$ pip install jinja2

---> 100%
```

</div>

## 使用 `Jinja2Templates` { #using-jinja2templates }

* 导入 `Jinja2Templates`
* 创建可复用的 `templates` 对象

### `pydantic-settings`'i kurun { #install-pydantic-settings }

Önce, [Sanal ortam](../virtual-environments.md) oluşturduğunuzdan, aktive ettiğinizden emin olun ve ardından `pydantic-settings` paketini kurun:

<div class="termy">

```console
$ pip install pydantic-settings
---> 100%
```

</div>

            assertArrayEquals(originalSalt, decodedContext.getSalt());
        }
    }

    @Nested
    @DisplayName("Constant Value Tests")
    class ConstantValueTests {

        @Test
        @DisplayName("Should have correct constant values")
        void testConstantValues() {
            assertEquals(0x1, PreauthIntegrityNegotiateContext.NEGO_CTX_PREAUTH_TYPE);

  cancel-in-progress: true

permissions:
  contents: read

jobs:
  release:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Install Helm
        uses: azure/setup-helm@v4

      - name: Run helm lint
        run: |
          cd helm/minio

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

Спершу переконайтеся, що ви створили [віртуальне оточення](../virtual-environments.md), активували його, а потім встановили пакет `pydantic-settings`:

<div class="termy">

```console
$ pip install pydantic-settings
---> 100%
```

</div>

        run: echo "$GITHUB_CONTEXT"
      - uses: actions/checkout@v6
      - name: Set up Python
        uses: actions/setup-python@v6
        with:
          python-version-file: ".python-version"
      - name: Install uv
        uses: astral-sh/setup-uv@v7
      - name: Build distribution
        run: uv build
      - name: Publish

## Das Serverprogramm installieren { #install-the-server-program }

Wenn Sie FastAPI installieren, wird es mit einem Produktionsserver, Uvicorn, geliefert, und Sie können ihn mit dem `fastapi run` Befehl starten.

<div class="termy">

```console
$ pip install "fastapi[standard]"

---> 100%
```

</div>

////

//// tab | `uv`

Wenn Sie [`uv`](https://github.com/astral-sh/uv) haben:

<div class="termy">

```console
$ uv pip install "fastapi[standard]"
---> 100%
```

</div>

////

### Installation von `requirements.txt` { #install-from-requirements-txt }