실제 콜백 코드는 여러분의 API 앱에 크게 의존합니다.

그리고 앱마다 많이 달라질 수 있습니다.

다음처럼 한두 줄의 코드일 수도 있습니다:

```Python
callback_url = "https://example.com/api/v1/invoices/events/"
httpx.post(callback_url, json={"description": "Invoice paid", "paid": True})
```

하지만 콜백에서 가장 중요한 부분은, 여러분의 API 사용자(외부 개발자)가 콜백 요청 body로 *여러분의 API*가 보낼 데이터 등에 맞춰 *external API*를 올바르게 구현하도록 보장하는 것입니다.

* `version`: Die Version Ihrer API, z. B. `2.5.0`.
* `openapi_version`: Die Version der verwendeten OpenAPI-Spezifikation. Standardmäßig die neueste Version: `3.1.0`.
* `summary`: Eine kurze Zusammenfassung der API.
* `description`: Die Beschreibung Ihrer API. Dies kann Markdown enthalten und wird in der Dokumentation angezeigt.
* `routes`: Eine Liste von Routen, dies sind alle registrierten *Pfadoperationen*. Sie stammen von `app.routes`.

/// info | Info

            "6, 0, Windows Vista", "6, 1, Windows 7", "6, 2, Windows 8", "6, 3, Windows 8.1", "10, 0, Windows 10" })
    void testReadDataWireFormatWithVariousVersions(int major, int minor, String description) throws Exception {
        setConverter(response, 0);
        setNumEntries(response, 1);

        String serverName = "TESTSERVER";

        byte[] buffer = new byte[200];
        int bufferIndex = 0;

if not errorlevel 1 goto installed

.empty-state-icon i {
    font-size: 2rem;
    color: white;
}

.empty-state-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: #172b4d;
    margin-bottom: 0.5rem;
}

.empty-state-description {
    font-size: 0.9375rem;
    color: #6b778c;
    max-width: 400px;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.empty-state-suggestions {
    width: 100%;
    max-width: 500px;

///

Ви можете додати `title`:

{* ../../docs_src/query_params_str_validations/tutorial007_an_py310.py hl[10] *}

А також `description`:

{* ../../docs_src/query_params_str_validations/tutorial008_an_py310.py hl[14] *}

## Аліаси параметрів { #alias-parameters }

Уявіть, що ви хочете, щоб параметр називався `item-query`.

Наприклад:

        }
    }
}

/**
 * Tasks that are called by the (currently separate) promotion build running on CI.
 */
tasks.register("promotionBuild") {
    description = "Build production distros, smoke test them and publish"
    group = "publishing"
    dependsOn(":packageBuild", "publish")

  - family-names: Wicke
    given-names: Martin
  - family-names: Yu
    given-names: Yuan
  - family-names: Zheng
    given-names: Xiaoqiang
identifiers:
  - type: doi
    value: 10.5281/zenodo.4724125
    description: The concept DOI for the collection containing all versions of the Citation File Format.
date-released: "2015-11-09"
license: "Apache-2.0"
doi: 10.5281/zenodo.4724125

@DisableCachingByDefault(because = "Depends on GitHub API")
abstract class UpdateFixedIssuesInReleaseNotes : DefaultTask() {

    @get:Internal
    abstract val releaseNotes: RegularFileProperty

    @get:Option(option = "milestone", description = "The milestone to fetch fixed issues for, e.g. '9.0.1'")
    @get:Internal
    abstract val milestone: Property<String>

    @get:Internal
    abstract val githubToken: Property<String>

    @TaskAction

```Python hl_lines="3  5"
{
    "name": "Bar",
    "description": "The bartenders",
    "price": 62,
    "tax": 20.2
}
```

それらはレスポンスに含まれます。

#### デフォルト値と同じ値を持つデータ { #data-with-the-same-values-as-the-defaults }

ID `baz` のitemのようにデフォルト値と同じ値を持つデータの場合:

```Python hl_lines="3  5-6"
{
    "name": "Baz",
    "description": None,
    "price": 50.2,
    "tax": 10.5,
    "tags": []