"PFAndESI":                  "pf_and_esi",
		"AbcAndJkl":                 "abc_and_jkl",
		"EmployeeID":                "employee_id",
		"SKU_ID":                    "sku_id",
		"FieldX":                    "field_x",
		"HTTPAndSMTP":               "http_and_smtp",
		"HTTPServerHandlerForURLID": "http_server_handler_for_url_id",
		"UUID":                      "uuid",
		"HTTPURL":                   "http_url",

        // Then
        // These fields are protected in parent class, so we can't access them directly
        // We verify the object was created successfully instead
        assertNotNull(trans2GetDfsReferral);

        // Verify that request buffer was created with correct parameters
        Field requestField = Trans2GetDfsReferral.class.getDeclaredField("request");

⚫️ 5️⃣📆 😋 🤚 `HTTPException` ⚖️ 🎏 🚪 📟, ⏮️ `yield`. ✋️ **⚫️ 🏆 🚫 👷**.

🚪 📟 🔗 ⏮️ `yield` 🛠️ *⏮️* 📨 📨, [⚠ 🐕‍🦺](../handling-errors.md#_4){.internal-link target=_blank} 🔜 ✔️ ⏪ 🏃. 📤 🕳 😽 ⚠ 🚮 👆 🔗 🚪 📟 (⏮️ `yield`).

, 🚥 👆 🤚 `HTTPException` ⏮️ `yield`, 🔢 (⚖️ 🙆 🛃) ⚠ 🐕‍🦺 👈 ✊ `HTTPException`Ⓜ & 📨 🇺🇸🔍 4️⃣0️⃣0️⃣ 📨 🏆 🚫 📤 ✊ 👈 ⚠ 🚫🔜.

👉 ⚫️❔ ✔ 🕳 ⚒ 🔗 (✅ 💽 🎉), 🖼, ⚙️ 🖥 📋.

**FastAPI** はこれを実現するために内部的に使用しています。

///

## `yield`と`HTTPException`を持つ依存関係

`yield`と例外をキャッチする`try`ブロックを持つことができる依存関係を使用することができることがわかりました。

`yield`の後の終了コードで`HTTPException`などを発生させたくなるかもしれません。しかし**それはうまくいきません**

`yield`を持つ依存関係の終了コードは[例外ハンドラ](../handling-errors.md#_4){.internal-link target=_blank}の*後に*実行されます。依存関係によって投げられた例外を終了コード（`yield`の後）でキャッチするものはなにもありません。

# Dependencias con yield

FastAPI admite dependencias que realizan algunos <abbr title='sometimes also called "exit code", "cleanup code", "teardown code", "closing code", "context manager exit code", etc.'>pasos adicionales después de finalizar</abbr>.

Para hacer esto, usa `yield` en lugar de `return` y escribe los pasos adicionales (código) después.

/// tip | Consejo

Asegúrate de usar `yield` una sola vez por dependencia.

///

# Dependencies with yield { #dependencies-with-yield }

FastAPI supports dependencies that do some <abbr title='sometimes also called "exit code", "cleanup code", "teardown code", "closing code", "context manager exit code", etc.'>extra steps after finishing</abbr>.

To do this, use `yield` instead of `return`, and write the extra steps (code) after.

/// tip

Make sure to use `yield` one single time per dependency.

///

/// note | Technical Details

# Dependências com yield

O FastAPI possui suporte para dependências que realizam <abbr title='também chamados de "código de saída", "código de cleanup", "código de teardown", "código de finalização", "código de saída para gerenciador de contextos", etc.'>alguns passos extras ao finalizar</abbr>.

Para fazer isso, utilize `yield` em vez de `return`, e escreva os passos extras (código) depois.

/// tip | Dica

Garanta que `yield` é utilizado apenas uma vez.

        Field field = response.getClass().getDeclaredField("converter");
        field.setAccessible(true);
        return field.getInt(response);
    }

    private void setConverter(NetServerEnum2Response response, int value) throws Exception {
        Field field = response.getClass().getDeclaredField("converter");
        field.setAccessible(true);
        field.setInt(response, value);
    }

        Field field = response.getClass().getDeclaredField("converter");
        field.setAccessible(true);
        return field.getInt(response);
    }

    private void setConverter(NetShareEnumResponse response, int value) throws Exception {
        Field field = response.getClass().getDeclaredField("converter");
        field.setAccessible(true);
        field.setInt(response, value);
    }

In some special use cases (probably not very common), you might want to **restrict** the headers that you want to receive.

You can use Pydantic's model configuration to `forbid` any `extra` fields:

{* ../../docs_src/header_param_models/tutorial002_an_py310.py hl[10] *}

If a client tries to send some **extra headers**, they will receive an **error** response.