## Listen als Felder { #list-fields }

Sie können ein Attribut als Kindtyp definieren, zum Beispiel eine Python-`list`.

{* ../../docs_src/body_nested_models/tutorial001_py310.py hl[12] *}

Das bewirkt, dass `tags` eine Liste ist, wenngleich es nichts über den Typ der Elemente der Liste aussagt.

## Listen mit Typ-Parametern als Felder { #list-fields-with-type-parameter }

可能你需要启动一个新版本，或者你只是你厌倦了运行它。 🤷

///

## 生命周期函数

首先要注意的是，我们定义了一个带有 `yield` 的异步函数。这与带有 `yield` 的依赖项非常相似。

```Python hl_lines="14-19"
{!../../docs_src/events/tutorial003.py!}
```

这个函数在 `yield`之前的部分，会在应用启动前执行。

剩下的部分在 `yield` 之后，会在应用完成后执行。

## 异步上下文管理器

如你所见，这个函数有一个装饰器 `@asynccontextmanager` 。

它将函数转化为所谓的“**异步上下文管理器**”。

```Python hl_lines="1  13"
{!../../docs_src/events/tutorial003.py!}
```

/// tip | Tipp

Um Formularbodys zu deklarieren, verwenden Sie explizit `Form`, da diese Parameter sonst als Query-Parameter oder Body (JSON)-Parameter interpretiert werden würden.

///

## Über „Formularfelder“ { #about-form-fields }

HTML-Formulare (`<form></form>`) senden die Daten in einer „speziellen“ Kodierung zum Server, die sich von JSON unterscheidet.

**FastAPI** stellt sicher, dass diese Daten korrekt ausgelesen werden, statt JSON zu erwarten.

values my-release > old_values.yaml ``` Then change the field `image.tag` in `old_values.yaml` file with MinIO image tag you want to use. Now update the chart using ```bash helm upgrade -f old_values.yaml my-release minio/minio ``` Default upgrade strategies are specified in the `values.yaml` file. Update these fields if you'd like to use a different strategy. ### Configuration Refer the [Values file](./values.yaml) for all the possible config fields. You can specify each parameter using the `--set k...

values my-release > old_values.yaml ``` Then change the field `image.tag` in `old_values.yaml` file with MinIO image tag you want to use. Now update the chart using ```bash helm upgrade -f old_values.yaml my-release minio/minio ``` Default upgrade strategies are specified in the `values.yaml` file. Update these fields if you'd like to use a different strategy. ### Configuration Refer the [Values file](./values.yaml) for all the possible config fields. You can specify each parameter using the `--set k...

values my-release > old_values.yaml ``` Then change the field `image.tag` in `old_values.yaml` file with MinIO image tag you want to use. Now update the chart using ```bash helm upgrade -f old_values.yaml my-release minio/minio ``` Default upgrade strategies are specified in the `values.yaml` file. Update these fields if you'd like to use a different strategy. ### Configuration Refer the [Values file](./values.yaml) for all the possible config fields. You can specify each parameter using the `--set k...

values my-release > old_values.yaml ``` Then change the field `image.tag` in `old_values.yaml` file with MinIO image tag you want to use. Now update the chart using ```bash helm upgrade -f old_values.yaml my-release minio/minio ``` Default upgrade strategies are specified in the `values.yaml` file. Update these fields if you'd like to use a different strategy. ### Configuration Refer the [Values file](./values.yaml) for all the possible config fields. You can specify each parameter using the `--set k...

values my-release > old_values.yaml ``` Then change the field `image.tag` in `old_values.yaml` file with MinIO image tag you want to use. Now update the chart using ```bash helm upgrade -f old_values.yaml my-release minio/minio ``` Default upgrade strategies are specified in the `values.yaml` file. Update these fields if you'd like to use a different strategy. ### Configuration Refer the [Values file](./values.yaml) for all the possible config fields. You can specify each parameter using the `--set k...

values my-release > old_values.yaml ``` Then change the field `image.tag` in `old_values.yaml` file with MinIO image tag you want to use. Now update the chart using ```bash helm upgrade -f old_values.yaml my-release minio/minio ``` Default upgrade strategies are specified in the `values.yaml` file. Update these fields if you'd like to use a different strategy. ### Configuration Refer the [Values file](./values.yaml) for all the possible config fields. You can specify each parameter using the `--set k...

values my-release > old_values.yaml ``` Then change the field `image.tag` in `old_values.yaml` file with MinIO image tag you want to use. Now update the chart using ```bash helm upgrade -f old_values.yaml my-release minio/minio ``` Default upgrade strategies are specified in the `values.yaml` file. Update these fields if you'd like to use a different strategy. ### Configuration Refer the [Values file](./values.yaml) for all the possible config fields. You can specify each parameter using the `--set k...