* {@linkplain Service.State#TERMINATED terminates} or {@linkplain Service.State#TERMINATED
   * fails}. Subclasses may override this method to supply a custom {@link ScheduledExecutorService}
   * instance. This method is guaranteed to only be called once.
   *
   * <p>By default this returns a new {@link ScheduledExecutorService} with a single thread pool

            assertEquals(TEST_TARGET, message.getTarget());
            assertNotNull(message.getTargetInformation());
        }

        @Test
        @DisplayName("Constructor with custom flags should use provided flags")
        void testConstructor_CIFSContext_Flags_Challenge_Target() {
            // Given
            CIFSContext mockContext = createMockContext();

from fastapi import FastAPI
from fastapi.testclient import TestClient
from inline_snapshot import snapshot

app = FastAPI()


@app.get("/", openapi_extra={"x-custom-extension": "value"})
def route_with_extras():
    return {}


client = TestClient(app)


def test_get_route():
    response = client.get("/")
    assert response.status_code == 200, response.text
    assert response.json() == {}

要把某个查询参数从生成的 OpenAPI 模式中排除（从而也不会出现在自动文档系统中），将 `Query` 的参数 `include_in_schema` 设为 `False`：

{* ../../docs_src/query_params_str_validations/tutorial014_an_py310.py hl[10] *}

## 自定义校验 { #custom-validation }

有些情况下你需要做一些无法通过上述参数完成的**自定义校验**。

在这些情况下，你可以使用**自定义校验函数**，该函数会在正常校验之后应用（例如，在先校验值是 `str` 之后）。

{* ../../docs_src/middleware/tutorial001_py310.py hl[8:9,11,14] *}

/// tip | Consejo

Ten en cuenta que los custom proprietary headers se pueden añadir [usando el prefijo `X-`](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers).

This release contains changes that address the following vulnerabilities:

### CVE-2022-3162: Unauthorized read of Custom Resources

A security issue was discovered in Kubernetes where users authorized to list or watch one type of namespaced custom resource cluster-wide can read custom resources of a different type in the same API group they are not authorized to read.

**Affected Versions**:

 *  New: Update the embedded public suffixes list.


## Version 3.13.1

_2019-02-05_

 *  Fix: Don't crash when using a custom `X509TrustManager` or `SSLSocket` on Android. When we
    removed obsolete code for Android 4.4 we inadvertently also removed support for custom
    subclasses. We've restored that support!


## Version 3.13.0

_2019-02-04_

            }
            if (size != null) {
                builder.setSize(size);
            }
        });
    }

    /**
     * Retrieves a list of documents from the OpenSearch index using a custom search request builder.
     *
     * @param <T> The type of objects to retrieve.
     * @param clazz The class of the objects to retrieve.
     * @param callback The callback to configure the search request.

        </field>
        <!--
        This could be included once we teach Maven to deal with multiple versions of the model
        <field>
          <name>custom</name>
          <version>4.1.0+</version>
          <description>Describes a custom profile activation trigger, brought in via build
            extension.</description>
          <association>
            <type>ActivationCustom</type>

## Base64 ve Dosyalar { #base64-vs-files }

İkili veriyi JSON içinde encode etmek yerine, yükleme için [Request Files](../tutorial/request-files.md) ve gönderim için [Custom Response - FileResponse](./custom-response.md#fileresponse--fileresponse-) kullanıp kullanamayacağınıza önce bir bakın.

JSON sadece UTF-8 ile encode edilmiş string'ler içerebilir, dolayısıyla ham bytes içeremez.