dns.assertRequests(uriHost)
    proxySelector.assertRequests(address.url.toUri())
  }

  @Test fun proxySelectorReturnsMultipleProxies() {
    val address = factory.newAddress()
    proxySelector.proxies.add(proxyA)
    proxySelector.proxies.add(proxyB)
    val routeSelector = newRouteSelector(address)
    proxySelector.assertRequests(address.url.toUri())

    // First try the IP addresses of the first proxy, in sequence.

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:

{* ../../docs_src/body_nested_models/tutorial005.py hl[4,10] *}

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

Pydanticモデルを`list`や`set`などのサブタイプとして使用することもできます:

public final class PerCallSettings {
  private final OkHttpClient client = new OkHttpClient();

  public void run() throws Exception {
    Request request = new Request.Builder()
        .url("http://httpbin.org/delay/1") // This URL is served with a 1 second delay.
        .build();

    // Copy to customize OkHttp for this request.
    OkHttpClient client1 = client.newBuilder()
        .readTimeout(500, TimeUnit.MILLISECONDS)

        .addInterceptor(
            new BasicAuthInterceptor("publicobject.com", "jesse", "password1"))
        .build();
  }

  public void run() throws Exception {
    Request request = new Request.Builder()
        .url("https://publicobject.com/secrets/hellosecret.txt")
        .build();

    try (Response response = client.newCall(request).execute()) {
      if (!response.isSuccessful()) throw new IOException("Unexpected code " + response);

  <artifactId>project-with-additional-lifecycle-elements</artifactId>
  <packaging>jar</packaging>
  <version>1.0</version>
  <name>project-with-additional-lifecycle-elements</name>
  <url>http://maven.apache.org</url>

  <build>
    <pluginManagement>
      <plugins>
        <plugin>
          <groupId>org.apache.maven.plugins</groupId>
          <artifactId>maven-clean-plugin</artifactId>

from fastapi import FastAPI
from pydantic import BaseModel, HttpUrl

app = FastAPI()


class Image(BaseModel):
    url: HttpUrl
    name: str


class Item(BaseModel):
    name: str
    description: str | None = None
    price: float
    tax: float | None = None
    tags: set[str] = set()
    image: Image | None = None


@app.put("/items/{item_id}")
async def update_item(item_id: int, item: Item):

* Cache is not an interface with alternative implementations.

Get a URL
---------

This program downloads a URL and prints its contents as a string. [Full source][get_example].

```java
OkHttpClient client = new OkHttpClient();

String run(String url) throws IOException {
  Request request = new Request.Builder()
      .url(url)
      .build();

  try (Response response = client.newCall(request).execute()) {

* `swagger_css_url`: die URL, unter welcher der HTML-Code für Ihre Swagger-UI-Dokumentation die **CSS**-Datei abrufen kann. Dies ist die benutzerdefinierte CDN-URL.

Und ähnlich für ReDoc ...

{* ../../docs_src/custom_docs_ui/tutorial001_py39.py hl[2:6,11:19,22:24,27:33] *}

/// tip | Tipp

Die *Pfadoperation* für `swagger_ui_redirect` ist ein Hilfsmittel bei der Verwendung von OAuth2.

* `openapi_url`: the URL where the HTML page for the docs can get the OpenAPI schema for your API. You can use here the attribute `app.openapi_url`.
* `title`: the title of your API.
* `oauth2_redirect_url`: you can use `app.swagger_ui_oauth2_redirect_url` here to use the default.
* `swagger_js_url`: the URL where the HTML for your Swagger UI docs can get the **JavaScript** file. This is the custom CDN URL.

	"github.com/rabbitmq/amqp091-go"
)

// AMQPArgs - AMQP target arguments.
type AMQPArgs struct {
	Enable            bool        `json:"enable"`
	URL               amqp091.URI `json:"url"`
	Exchange          string      `json:"exchange"`
	RoutingKey        string      `json:"routingKey"`
	ExchangeType      string      `json:"exchangeType"`
	DeliveryMode      uint8       `json:"deliveryMode"`