যেহেতু লিস্ট এমন একটি টাইপ যা অভ্যন্তরীণ টাইপগুলি ধারণ করে, আপনি তাদের স্কোয়ার ব্রাকেটের ভিতরে করুন:

```Python hl_lines="4"
{!> ../../docs_src/python_types/tutorial006.py!}
```

////

/// info

স্কোয়ার ব্রাকেট এর ভিতরে ব্যবহৃত এইসব অভন্তরীন টাইপগুলোকে "ইন্টারনাল টাইপ" বলে।

এই উদাহরণে, এটি হচ্ছে `List`(অথবা পাইথন ৩.৯ বা তার উপরের সংস্করণের ক্ষেত্রে `list`) এ পাস করা টাইপ প্যারামিটার।

///

        appendProcessStats(buf);
        appendJvmStats(buf);
        appendFesenStats(buf);

        appendTimestamp(buf);
        buf.append('}');

        if (logger.isInfoEnabled()) {
            logger.info(buf.toString());
        }
    }

    private void appendJvmStats(final StringBuilder buf) {
        buf.append("\"jvm\":{");
        final JvmStats jvmStats = JvmStats.jvmStats();

But remember that when you import `Query`, `Path`, `Header`, and others from `fastapi`, those are actually functions that return special classes.

///

/// info

To declare headers, you need to use `Header`, because otherwise the parameters would be interpreted as query parameters.

///

## Automatic conversion

/// tip | "Tipp"

Bevorzugen Sie die `Annotated`-Version, falls möglich.

///

```Python hl_lines="22"
{!> ../../docs_src/dependencies/tutorial005.py!}
```

////

/// info

Beachten Sie, dass wir in der *Pfadoperation-Funktion* nur eine einzige Abhängigkeit deklarieren, den `query_or_cookie_extractor`.

```

////

//// tab | 🐍 3️⃣.1️⃣0️⃣ & 🔛

```Python hl_lines="26"
{!> ../../docs_src/body_multiple_params/tutorial004_py310.py!}
```

////

/// info

`Body` ✔️ 🌐 🎏 ➕ 🔬 & 🗃 🔢 `Query`,`Path` & 🎏 👆 🔜 👀 ⏪.

///

## ⏯ 👁 💪 🔢

➡️ 💬 👆 🕴 ✔️ 👁 `item` 💪 🔢 ⚪️➡️ Pydantic 🏷 `Item`.

🔢, **FastAPI** 🔜 ⤴️ ⌛ 🚮 💪 🔗.

## 응답 기술

`response_description` 매개변수로 응답에 관한 설명을 명시할 수 있습니다:

```Python hl_lines="21"
{!../../docs_src/path_operation_configuration/tutorial005.py!}
```

/// info | "정보"

`response_description`은 구체적으로 응답을 지칭하며, `description`은 일반적인 *경로 작동*을 지칭합니다.

///

/// check | "확인"

OpenAPI는 각 *경로 작동*이 응답에 관한 설명을 요구할 것을 명시합니다.

        final ResourceHandler resource_handler = new ResourceHandler();
        resource_handler.setWelcomeFiles(new String[] { "index.html" });
        resource_handler.setResourceBase(docRoot.getAbsolutePath());
        Log.info("serving " + resource_handler.getBaseResource());
        final HandlerList handlers = new HandlerList();
        handlers.setHandlers(new Handler[] { resource_handler, new DefaultHandler() });
        server.setHandler(handlers);

}

// ValidatingAdmissionPolicy describes the definition of an admission validation policy that accepts or rejects an object without changing it.
message ValidatingAdmissionPolicy {
  // Standard object metadata; More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata.
  // +optional
  optional k8s.io.apimachinery.pkg.apis.meta.v1.ObjectMeta metadata = 1;

		select {
		case <-ticker.C:
			ttfbHist.With(prometheus.Labels{"api": obs.label}).Observe(obs.val)
		}
	}

	metrics := getHistogramMetrics(ttfbHist, getBucketTTFBDistributionMD(), false)
	// additional labels for +Inf for all histogram metrics
	if expPoints := len(labels) * (len(histBuckets) + 1); expPoints != len(metrics) {
		t.Fatalf("Expected %v data points but got %v", expPoints, len(metrics))
	}

Il utilise Marshmallow pour effectuer la validation des données. Et il a été créé par les mêmes développeurs.

C'est un outil formidable et je l'ai beaucoup utilisé aussi, avant d'avoir **FastAPI**.

/// info

Webargs a été créé par les développeurs de Marshmallow.

///

/// check | "A inspiré **FastAPI** à"

Disposer d'une validation automatique des données des requêtes entrantes.

///