모든 옵션을 보려면, <a href="https://docs.pydantic.dev/latest/concepts/types/" class="external-link" target="_blank">Pydantic's exotic types</a> 문서를 확인하세요. 다음 장에서 몇가지 예제를 볼 수 있습니다.

예를 들어 `Image` 모델 안에 `url` 필드를 `str` 대신 Pydantic의 `HttpUrl`로 선언할 수 있습니다:

```Python hl_lines="4  10"
{!../../docs_src/body_nested_models/tutorial005.py!}
```

이 문자열이 유효한 URL인지 검사하고 JSON 스키마/OpenAPI로 문서화 됩니다.

## 서브모델 리스트를 갖는 어트리뷰트

For example, as in the `Image` model we have a `url` field, we can declare it to be an instance of Pydantic's `HttpUrl` instead of a `str`:

//// tab | Python 3.10+

```Python hl_lines="2  8"
{!> ../../docs_src/body_nested_models/tutorial005_py310.py!}
```

////

//// tab | Python 3.9+

    `DurationUnit` which was a typealias in 1.5.x.
 *  Upgrade: [Okio 3.2.0][okio_3_2_0].


## Version 5.0.0-alpha.9

_2022-06-16_

 *  New: Enforce label length limits in URLs. `HttpUrl` now rejects URLs whose domains aren't valid.
    This includes overly-long domain names (longer than 253 characters), overly-long labels (more
    than 63 characters between dots), and empty labels.

import assertk.assertions.isTrue
import java.io.File
import java.io.FileWriter
import java.net.URI
import java.util.UUID
import kotlin.test.assertFailsWith
import okhttp3.Headers.Companion.headersOf
import okhttp3.HttpUrl.Companion.toHttpUrl
import okhttp3.MediaType.Companion.toMediaType
import okhttp3.RequestBody.Companion.asRequestBody
import okhttp3.RequestBody.Companion.toRequestBody
import okio.Buffer

要了解所有的可用选项，请查看关于 <a href="https://docs.pydantic.dev/latest/concepts/types/" class="external-link" target="_blank">来自 Pydantic 的外部类型</a> 的文档。你将在下一章节中看到一些示例。

例如，在 `Image` 模型中我们有一个 `url` 字段，我们可以把它声明为 Pydantic 的 `HttpUrl`，而不是 `str`：

//// tab | Python 3.10+

```Python hl_lines="2  8"
{!> ../../docs_src/body_nested_models/tutorial005_py310.py!}
```

////

//// tab | Python 3.9+

import assertk.assertions.isSameAs
import assertk.assertions.matches
import java.net.UnknownHostException
import mockwebserver3.MockResponse
import mockwebserver3.MockWebServer
import okhttp3.HttpUrl
import okhttp3.Interceptor
import okhttp3.MediaType
import okhttp3.MediaType.Companion.toMediaType
import okhttp3.OkHttpClient
import okhttp3.Protocol
import okhttp3.RecordingHostnameVerifier
import okhttp3.Request

import mockwebserver3.SocketPolicy.ShutdownOutputAtEnd
import mockwebserver3.junit5.internal.MockWebServerInstance
import okhttp3.Credentials.basic
import okhttp3.Headers.Companion.headersOf
import okhttp3.HttpUrl.Companion.toHttpUrl
import okhttp3.HttpUrl.Companion.toHttpUrlOrNull
import okhttp3.MediaType.Companion.toMediaType
import okhttp3.RequestBody.Companion.toRequestBody
import okhttp3.TestUtil.assertSuppressed

すべてのオプションをみるには、<a href="https://docs.pydantic.dev/latest/concepts/types/" class="external-link" target="_blank">Pydanticのエキゾチック な型</a>のドキュメントを確認してください。次の章でいくつかの例をみることができます。

例えば、`Image`モデルのように`url`フィールドがある場合、`str`の代わりにPydanticの`HttpUrl`を指定することができます:

```Python hl_lines="4 10"
{!../../docs_src/body_nested_models/tutorial005.py!}
```

文字列は有効なURLであることが確認され、そのようにJSONスキーマ・OpenAPIで文書化されます。

## サブモデルのリストを持つ属性

import mockwebserver3.SocketPolicy.DisconnectDuringRequestBody
import mockwebserver3.SocketPolicy.DisconnectDuringResponseBody
import mockwebserver3.SocketPolicy.ShutdownServerAfterResponse
import okhttp3.Headers
import okhttp3.HttpUrl.Companion.toHttpUrl
import okhttp3.OkHttpClient
import okhttp3.Protocol
import okhttp3.RecordingHostnameVerifier
import okhttp3.Request
import okhttp3.TestUtil.assumeNotWindows
import okhttp3.testing.PlatformRule

import okhttp3.Call
import okhttp3.CertificatePinner
import okhttp3.Connection
import okhttp3.DelegatingSSLSocket
import okhttp3.DelegatingSSLSocketFactory
import okhttp3.EventListener
import okhttp3.Headers
import okhttp3.HttpUrl.Companion.toHttpUrl
import okhttp3.OkHttpClient
import okhttp3.OkHttpClientTestRule
import okhttp3.Protocol
import okhttp3.RecordingEventListener
import okhttp3.Request
import okhttp3.TlsVersion