<img src="/img/tutorial/dependencies/image02.png">

## Abkürzung

Aber Sie sehen, dass wir hier etwas Codeduplizierung haben, indem wir `CommonQueryParams` zweimal schreiben:

//// tab | Python 3.8+

```Python

Unfortunately it crashes on OkHttp 4.x’s bytecode. Until [Google’s bug][advanced_profiling_bug] is
fixed you must disable advanced profiling in Android Studio.

![Disable Advanced Profiling](../assets/images/disable_advanced_profiling@2x.png)


R8 / ProGuard
-------------

R8 and ProGuard are both code optimizers for `.class` files.

R8 is the [default optimizer][r8] in Android Studio 3.4 and newer. It works well with all

Sie sehen Ihre Dokumentation, einschließlich eines Abschnitts „Callbacks“ für Ihre *Pfadoperation*, der zeigt, wie die *externe API* aussehen sollte:

					</la:link>
				</div>
			</div>
		</div>
		<main class="container">
			<div class="row">
				<div class="col text-center searchFormBox">
					<h1 class="mainLogo">
						<img src="${fe:url('/images/logo.png')}"
							alt="<la:message key="labels.index_title" />" />
					</h1>
					<div class="notification">${notification}</div>
					<div>
						<la:info id="msg" message="true">

c.imageRatioNotAccepted;return!1},a.formUtils.addAsyncValidator({name:"dimension",validatorFunction:function(b,d,e,g,h){if(c){var i=e.get(0).files||[],j=this;e.attr("data-validation").indexOf("mime")===-1?(alert("You should validate file type being jpg, gif or png on input "+e[0].name),b(!1)):i.length>1?(alert("Validating image dimensions does not support inputs allowing multiple files"),b(!1)):0===i.length?b(!0):f(i[0],function(c){var d=!1;e.valAttr("dimension")&&(d=a.formUtils.checkImageDimension(c,e.valAt...

<img src="/img/tutorial/dependencies/image02.png">

## Сокращение

Но вы видите, что здесь мы имеем некоторое повторение кода, дважды написав `CommonQueryParams`:

//// tab | Python 3.6+ без Annotated

/// tip | Подсказка

Mas declarar o tipo é encorajado por que é a forma que o seu editor de texto sabe o que será passado como valor do parâmetro `commons`.

<img src="/img/tutorial/dependencies/image02.png">

## Pegando um Atalho

Mas você pode ver que temos uma repetição do código neste exemplo, escrevendo `CommonQueryParams` duas vezes:

//// tab | Python 3.8+

```Python

But declaring the type is encouraged as that way your editor will know what will be passed as the parameter `commons`, and then it can help you with code completion, type checks, etc:

<img src="/img/tutorial/dependencies/image02.png">

## Shortcut { #shortcut }

But you see that we are having some code repetition here, writing `CommonQueryParams` twice:

//// tab | Python 3.8+

```Python

<img src="/img/tutorial/response-model/image01.png">

Y ambos modelos se utilizarán para la documentación interactiva de la API:

<img src="/img/tutorial/response-model/image02.png">

## Otras Anotaciones de Tipos de Retorno

## ドキュメントを見る

自動ドキュメントを見ると、入力モデルと出力モデルがそれぞれ独自のJSON Schemaを持っていることが確認できます。

<img src="https://fastapi.tiangolo.com/img/tutorial/response-model/image01.png">

そして、両方のモデルは、対話型のAPIドキュメントに使用されます:

<img src="https://fastapi.tiangolo.com/img/tutorial/response-model/image02.png">

## レスポンスモデルのエンコーディングパラメータ

レスポンスモデルにはデフォルト値を設定することができます:

{* ../../docs_src/response_model/tutorial004.py hl[11,13,14] *}