Dieser Teil ist ziemlich normal, der größte Teil des Codes ist Ihnen wahrscheinlich bereits bekannt:

{* ../../docs_src/openapi_callbacks/tutorial001_py310.py hl[7:11,34:51] *}

/// tip | Tipp

Der Query-Parameter `callback_url` verwendet einen Pydantic-[Url](https://docs.pydantic.dev/latest/api/networks/)-Typ.

///

    override val call: Call,
    val url: HttpUrl,
  ) : CallEvent()

  data class ProxySelectEnd(
    override val timestampNs: Long,
    override val call: Call,
    val url: HttpUrl,
    val proxies: List<Proxy>?,
  ) : CallEvent() {
    override fun closes(event: CallEvent): Boolean = event is ProxySelectStart && call == event.call && url == event.url
  }

  data class DnsStart(

		apiErr := getAPIError(ErrBusy)
		switch r.Method {
		case http.MethodHead:
			writeResponse(w, apiErr.HTTPStatusCode, nil, mimeNone)
		case http.MethodGet:
			writeErrorResponse(r.Context(), w, apiErr, r.URL)
		}
		return
	}

	// Verify if KMS is reachable if its configured
	if GlobalKMS != nil {
		ctx, cancel := context.WithTimeout(r.Context(), time.Minute)
		defer cancel()

        )
        require(lineFound) {
            "File '$docFile' does not contain the expected compatibility line: '$linePrefix'"
        }
    }

    protected
    fun fetchVersionsFromMavenMetadata(url: String): List<String> =
        DocumentBuilderFactory.newInstance().apply {
            setFeature("http://apache.org/xml/features/disallow-doctype-decl", true)

	<url>https://fess.codelibs.org/</url>
	<inceptionYear>2009</inceptionYear>
	<licenses>
		<license>
			<name>The Apache Software License, Version 2.0</name>
			<url>https://www.apache.org/licenses/LICENSE-2.0.txt</url>
			<distribution>repo</distribution>
		</license>
	</licenses>
	<organization>
		<name>CodeLibs</name>
		<url>https://fess.codelibs.org/</url>
	</organization>

    <url>https://github.com/google/guava</url>
  </scm>
  <issueManagement>
    <system>GitHub Issues</system>
    <url>https://github.com/google/guava/issues</url>
  </issueManagement>
  <ciManagement>
    <system>GitHub Actions</system>
    <url>https://github.com/google/guava/actions</url>
  </ciManagement>
  <properties>
    <!--

    return f


@pytest.mark.parametrize("endpoint_path", ("/file_before_form", "/file_after_form"))
def test_file_form_order(endpoint_path: str, tmp_file_1: Path):
    response = client.post(
        url=endpoint_path,
        data={"city": "Thimphou"},
        files={"file": (tmp_file_1.name, tmp_file_1.read_bytes())},
    )
    assert response.status_code == 200, response.text

  @JvmField val request: Request,
  val response: Response?,
  val webSocket: WebSocket?,
  val body: String?,
  val failure: IOException?,
) {
  fun assertRequestUrl(url: HttpUrl) =
    apply {
      assertThat(request.url).isEqualTo(url)
    }

  fun assertRequestMethod(method: String) =
    apply {
      assertThat(request.method).isEqualTo(method)
    }

  fun assertRequestHeader(
    name: String,

```

例如。当 ID 为 `42` 时, 会渲染成:

```html
Item ID: 42
```

### 模板 `url_for` 参数 { #template-url-for-arguments }

你还可以在模板内使用 `url_for()`，其参数与*路径操作函数*的参数相同。

所以，该部分:

{% raw %}

```jinja
<a href="{{ url_for('read_item', id=id) }}">
```

{% endraw %}

...将生成一个与处理*路径操作函数* `read_item(id=id)`的 URL 相同的链接

例如。当 ID 为 `42` 时, 会渲染成:

```html
<a href="/items/42">
```

        .build()
  }

  fun run() {
    showUrl("https://squareup.com/robots.txt")
    showUrl("https://publicobject.com/helloworld.txt")
  }

  private fun showUrl(url: String) {
    val request = Builder().url(url).build()
    client
      .newCall(request)
      .execute()
      .use { response ->
        if (!response.isSuccessful) {
          val responseHeaders = response.headers