@Execute
    @Secured({ ROLE, ROLE + VIEW })
    public HtmlResponse index() {
        return asListHtml();
    }

    @Execute
    @Secured({ ROLE, ROLE + VIEW })
    public HtmlResponse list(final OptionalThing<Integer> pageNumber, final SearchForm form) {
        pageNumber.ifPresent(num -> {
            badWordPager.setCurrentPageNumber(pageNumber.get());
        }).orElse(() -> {

    }.also { e ->
      assertEquals(firstFailure.toString(), e.toString())
    }
  }

  /** These tests are provided by [publicsuffix.org](https://publicsuffix.org/list/). */
  @Test fun publicSuffixDotOrgTestCases() {
    // Any copyright is dedicated to the Public Domain.
    // https://creativecommons.org/publicdomain/zero/1.0/

    // Mixed case.

    public void testSessionMaintenance () throws IOException, InterruptedException {
        try ( SmbFile f = getDefaultShareRoot() ) {
            checkConnection(f);
            while ( true ) {
                f.list();
                Thread.sleep(5000);
            }

        }
    }

Now use the parameter `callbacks` in *your API's path operation decorator* to pass the attribute `.routes` (that's actually just a `list` of routes/*path operations*) from that callback router:

```Python hl_lines="35"
{!../../docs_src/openapi_callbacks/tutorial001.py!}
```

/// tip

///

### Adım 5: İçeriği Geri Döndürün

```Python hl_lines="8"
{!../../docs_src/first_steps/tutorial001.py!}
```

Bir `dict`, `list` veya `str`, `int` gibi tekil değerler döndürebilirsiniz.

Ayrıca, Pydantic modelleri de döndürebilirsiniz (bu konu ileriki aşamalarda irdelenecektir).

##
## CODEOWNERS style rules:
## 1. Prefer team ownership over individual user ownership.
## 2. GBT-related team should be listed first.
## 3. Try to keep paths alphabetically sorted within visual groups.
## 4. List individual owners last.
##

# bt-unassigned-maintainers must be the first owner
# All directories that are not explicitly listed below are considered
# unassigned. This means that the ownership may be unknown, lost or

		t.Fatalf("[%s] - Failed to create an unsigned request to list object parts for bucket %s, uploadId %s",
			instanceType, bucketName, mpartResp.UploadID)
	}

	req.Header = http.Header{}
	err = preSignV2(req, credentials.AccessKey, credentials.SecretKey, int64(10*60*60))
	if err != nil {
		t.Fatalf("[%s] - Failed to presignV2 an unsigned request to list object parts for bucket %s, uploadId %s",

        queryLambda.callback(cq);
        final Collection<FilterFunctionBuilder> list = new ArrayList<>();
        if (functionsLambda != null) {
            functionsLambda.callback((cqLambda, scoreFunctionBuilder) -> {
                ElevateWordCQ cf = new ElevateWordCQ();
                cqLambda.callback(cf);
                list.add(new FilterFunctionBuilder(cf.getQuery(), scoreFunctionBuilder));
            });
        }

        queryLambda.callback(cq);
        final Collection<FilterFunctionBuilder> list = new ArrayList<>();
        if (functionsLambda != null) {
            functionsLambda.callback((cqLambda, scoreFunctionBuilder) -> {
                ClickLogCQ cf = new ClickLogCQ();
                cqLambda.callback(cf);
                list.add(new FilterFunctionBuilder(cf.getQuery(), scoreFunctionBuilder));
            });
        }

}
```

/// tip | "Tipp"

Wenn Sie eine `HTTPException` auslösen, können Sie dem Parameter `detail` jeden Wert übergeben, der nach JSON konvertiert werden kann, nicht nur `str`.

Zum Beispiel ein `dict`, eine `list`, usw.

Das wird automatisch von **FastAPI** gehandhabt und der Wert nach JSON konvertiert.

///

## Benutzerdefinierte Header hinzufügen