And that function `get_openapi()` receives as parameters:

* `title`: The OpenAPI title, shown in the docs.
* `version`: The version of your API, e.g. `2.5.0`.
* `openapi_version`: The version of the OpenAPI specification used. By default, the latest: `3.1.0`.
* `summary`: A short summary of the API.

            bytesRead = response2.readBytesWireFormat(largeBuffer, 1000);
            assertEquals(16, bytesRead);
            assertEquals(5000, response2.getCount());
            assertEquals(2500, response2.getRemaining());
        }

        private byte[] createValidWriteResponse(int count, int remaining) {
            byte[] buffer = new byte[64];

            // Given
            ByteBuffer buffer = ByteBuffer.allocate(24);
            buffer.order(ByteOrder.LITTLE_ENDIAN);
            buffer.putLong(1000L);
            buffer.putLong(250L);
            buffer.putInt(1);
            buffer.putInt(1);

            // When
            fileFsSizeInfo.decode(buffer.array(), 0, 24);

**FastAPI** アプリケーションのいくつかのメタデータの設定をカスタマイズできます。

## タイトル、説明文、バージョン

以下を設定できます:

* **タイトル**: OpenAPIおよび自動APIドキュメントUIでAPIのタイトル/名前として使用される。
* **説明文**: OpenAPIおよび自動APIドキュメントUIでのAPIの説明文。
* **バージョン**: APIのバージョン。例: `v2` または `2.5.0`。
     *たとえば、以前のバージョンのアプリケーションがあり、OpenAPIも使用している場合に便利です。

これらを設定するには、パラメータ `title`、`description`、`version` を使用します:

{* ../../docs_src/metadata/tutorial001.py hl[4:6] *}

この設定では、自動APIドキュメントは以下の様になります:

| `description` | `str` | Більш детальний опис API. Може використовувати Markdown. |
| `version` | `string` | Версія API. Це версія Вашого додатка, а не OpenAPI. Наприклад, `2.5.0`. |
| `terms_of_service` | `str` |  URL до умов використання API. Якщо вказано, має бути у форматі URL. |

      MockResponse
        .Builder()
        .headersDelay(2, TimeUnit.SECONDS)
        .build(),
    )
    client =
      client
        .newBuilder()
        .readTimeout(Duration.ofMillis(250))
        .build()
    val call =
      client.newCall(
        Request
          .Builder()
          .url(server.url("/"))
          .build(),
      )
    assertFailsWith<IOException> {

 * Prefer to alternate IP addresses from different address families, (IPv6 / IPv4), starting with IPv6.
 * Don't start a new attempt until 250 ms after the most recent attempt was started.
 * Keep whichever TCP connection succeeds first and cancel all the others.
 * Race TCP only. Only attempt a TLS handshake on the winning TCP connection.

    assertThat(server.takeRequest().exchangeIndex).isEqualTo(0)

    // Give the socket a chance to become stale.
    connection!!.idleAtNs -= IDLE_CONNECTION_HEALTHY_NS
    Thread.sleep(250)

    val requestB =
      Request(
        url = server.url("/"),
        body = "b".toRequestBody("text/plain".toMediaType()),
      )
    val responseB = client.newCall(requestB).execute()

| `description` | `str` | A short description of the API. It can use Markdown. |
| `version` | `string` | The version of the API. This is the version of your own application, not of OpenAPI. For example `2.5.0`. |
| `terms_of_service` | `str` | A URL to the Terms of Service for the API. If provided, this has to be a URL. |

| `description` | `str` | Uma breve descrição da API. Pode usar Markdown. |
| `version` | `string` | A versão da API. Esta é a versão da sua aplicação, não do OpenAPI. Por exemplo, `2.5.0`. |
| `terms_of_service` | `str` | Uma URL para os Termos de Serviço da API. Se fornecido, deve ser uma URL. |