!!! check "Inspired **FastAPI** to"
    Define extra validations for data types using the "default" value of model attributes. This improves editor support, and it was not available in Pydantic before.

这样，而不是仅仅试图从`dict`上 `id` 中获取值，如下所示：

```Python
id = data["id"]
```

尝试从属性中获取它，如：

```Python
id = data.id
```

有了这个，Pydantic*模型*与 ORM 兼容，您只需在*路径操作*`response_model`的参数中声明它即可。

您将能够返回一个数据库模型，它将从中读取数据。

#### ORM 模式的技术细节

SQLAlchemy 和许多其他默认情况下是“延迟加载”。

这意味着，例如，除非您尝试访问包含该数据的属性，否则它们不会从数据库中获取关系数据。

例如，访问属性`items`：

```Python
current_user.items

```Python
id = data["id"]
```

⚫️ 🔜 🔄 🤚 ⚫️ ⚪️➡️ 🔢,:

```Python
id = data.id
```

& ⏮️ 👉, Pydantic *🏷* 🔗 ⏮️ 🐜, & 👆 💪 📣 ⚫️ `response_model` ❌ 👆 *➡ 🛠️*.

👆 🔜 💪 📨 💽 🏷 & ⚫️ 🔜 ✍ 💽 ⚪️➡️ ⚫️.

#### 📡 ℹ 🔃 🐜 📳

🇸🇲 & 📚 🎏 🔢 "🙃 🚚".

👈 ⛓, 🖼, 👈 👫 🚫 ☕ 💽 💛 ⚪️➡️ 💽 🚥 👆 🔄 🔐 🔢 👈 🔜 🔌 👈 💽.

🖼, 🔐 🔢 `items`:

import org.junit.jupiter.api.Tag
import org.junit.jupiter.api.Test
import org.junit.jupiter.api.Timeout
import org.junit.jupiter.api.extension.RegisterExtension
import org.junit.runner.Description
import org.junit.runners.model.Statement

@Suppress("deprecation")
@Timeout(30)
@Tag("Slow")
class MockWebServerTest {
  @RegisterExtension
  var platform = PlatformRule()
  private val server = MockWebServer()

  @BeforeEach

import org.jetbrains.kotlin.psi
import org.jetbrains.kotlin.psi.KtFile
import org.jetbrains.kotlin.psi.psiUtil.parents
import org.jetbrains.kotlin.psi.psiUtil.parentsWithSelf
import org.jetbrains.kotlin.types.model.SimpleTypeMarker
import org.jetbrains.kotlin.types.updateArgumentModeFromAnnotations
import org.jetbrains.kotlin.utils.addToStdlib.firstIsInstanceOrNull
import java.text.StringCharacterIterator

!!! check "**FastAPI**'a nasıl ilham oldu?"
    Model özelliklerinin "standart" değerlerini kullanarak veri tipleri için ekstra veri doğrulama koşulları tanımlamalı. Bu editör desteğini geliştiriyor ve daha önceden Pydantic'te yoktu.

<img src="/img/tutorial/generate-clients/image03.png">

!!! tip
    Notice the autocompletion for `name` and `price`, that was defined in the FastAPI application, in the `Item` model.

You will have inline errors for the data that you send:

<img src="/img/tutorial/generate-clients/image04.png">

The response object will also have autocompletion:

Diese zusätzlichen Informationen werden unverändert zum für dieses Modell ausgegebenen **JSON-Schema** hinzugefügt und in der API-Dokumentation verwendet.

=== "Pydantic v2"

    In Pydantic Version 2 würden Sie das Attribut `model_config` verwenden, das ein `dict` akzeptiert, wie beschrieben in <a href="https://docs.pydantic.dev/latest/api/config/" class="external-link" target="_blank">Pydantic-Dokumentation: Configuration</a>.

Just standard **Python**.

For example, for an `int`:

```Python
item_id: int
```

or for a more complex `Item` model:

```Python
item: Item
```

...and with that single declaration you get:

* Editor support, including:
    * Completion.
    * Type checks.
* Validation of data:

Go 1.21 made it an error for html/template actions to appear inside of an ECMAScript 6
template literal, controlled by the
[`jstmpllitinterp` setting](/pkg/html/template#hdr-Security_Model).
This behavior was backported to Go 1.19.8+ and Go 1.20.3+.

Go 1.21 introduced a limit on the maximum number of MIME headers and multipart
forms, controlled by the