/// tip | İpucu

Burada `Query()` kullanıyoruz çünkü bu bir **query parametresi**. İleride `Path()`, `Body()`, `Header()` ve `Cookie()` gibi, `Query()` ile aynı argümanları kabul eden diğerlerini de göreceğiz.

///

FastAPI artık şunları yapacak:

        committer: TensorFlow Release Automation <******@****.***>
        token: ${{ secrets.JENKINS_TOKEN }}
        reviewers: mihaimaruseac,learning-to-play,nitins17
        body: |
          This PR was created by a GitHub Actions workflow to update all the SIG Build-based RBE containers to the most recent containers. See:

上の例では、入力モデルは Pydantic v1、出力モデル（`response_model=ItemV2` で定義）は Pydantic v2 です。

### Pydantic v1 のパラメータ { #pydantic-v1-parameters }

Pydantic v1 のモデルで `Body`、`Query`、`Form` などの FastAPI 固有のパラメータユーティリティを使う必要がある場合、v2 への移行が完了するまでの間は `fastapi.temp_pydantic_v1_params` からインポートできます:

{* ../../docs_src/pydantic_v1_in_v2/tutorial004_an_py310.py hl[4,18] *}

### 段階的に移行 { #migrate-in-steps }

### Paramètres Pydantic v1 { #pydantic-v1-parameters }

Si vous devez utiliser certains des outils spécifiques à FastAPI pour les paramètres comme `Body`, `Query`, `Form`, etc., avec des modèles Pydantic v1, vous pouvez les importer depuis `fastapi.temp_pydantic_v1_params` le temps de terminer la migration vers Pydantic v2 :

在上面的示例中，输入模型是 Pydantic v1 模型，输出模型（在 `response_model=ItemV2` 中定义）是 Pydantic v2 模型。

### Pydantic v1 参数 { #pydantic-v1-parameters }

如果你需要在 Pydantic v1 模型中使用 FastAPI 特有的参数工具，如 `Body`、`Query`、`Form` 等，在完成向 Pydantic v2 的迁移前，可以从 `fastapi.temp_pydantic_v1_params` 导入它们：

{* ../../docs_src/pydantic_v1_in_v2/tutorial004_an_py310.py hl[4,18] *}

### 分步迁移 { #migrate-in-steps }

/// tip | 提示

      }
      /*
       * requireNonNull is safe because:
       *
       * - columnIterator started off pointing to an empty iterator, so we must have entered the
       *   `if` body above at least once. Thus, if we got this far, that `if` body initialized
       *   rowEntry at least once.
       *
       * - The only case in which rowEntry is cleared (during remove() below) happens only if the

<img src="/img/tutorial/generate-clients/image08.png">

## Benefits { #benefits }

When using the automatically generated clients, you would get **autocompletion** for:

* Methods.
* Request payloads in the body, query parameters, etc.
* Response payloads.

You would also have **inline errors** for everything.

{* ../../docs_src/security/tutorial003_an_py310.py hl[4,78] *}

`OAuth2PasswordRequestForm` is a class dependency that declares a form body with:

* The `username`.
* The `password`.
* An optional `scope` field as a big string, composed of strings separated by spaces.
* An optional `grant_type`.

/// tip

{* ../../docs_src/security/tutorial003_an_py310.py hl[4,78] *}

`OAuth2PasswordRequestForm` es una dependencia de clase que declara un body de formulario con:

* El `username`.
* El `password`.
* Un campo opcional `scope` como un string grande, compuesto por strings separados por espacios.
* Un `grant_type` opcional.

/// tip | Consejo

		return err
	}
	// Indicate that the liveness check for a peer call
	req.Header.Set(xhttp.MinIOPeerCall, "true")

	resp, err := httpClient.Do(req)
	if err != nil {
		return err
	}
	xhttp.DrainBody(resp.Body)

	return nil
}

// connect to list of endpoints and load all Erasure disk formats, validate the formats are correct
// and are in quorum, if no formats are found attempt to initialize all of them for the first