* `allow_credentials` - Cross-origin request’ler için cookie desteği olup olmayacağını belirtir. Varsayılanı `False`.

    `allow_credentials` `True` olarak ayarlanmışsa, `allow_origins`, `allow_methods` ve `allow_headers` değerlerinin hiçbiri `['*']` olamaz. Hepsinin [açıkça belirtilmesi](https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS#credentialed_requests_and_wildcards) gerekir.

    enableTlsWithTunnel()
    server.protocols = Arrays.asList(Protocol.HTTP_2, Protocol.HTTP_1_1)
    server.enqueue(MockResponse())
    assertSuccessfulEventOrder(matchesProtocol(Protocol.HTTP_2), emptyBody = true)
    assertBytesReadWritten(
      eventRecorder,
      CoreMatchers.any(Long::class.java),
      null,
      greaterThan(0L),
      CoreMatchers.equalTo(0L),
    )
  }

  @Test

```Python
item: Item = Body(embed=True)
```

так же, как в этом примере:

{* ../../docs_src/body_multiple_params/tutorial005_an_py310.py hl[17] *}

В этом случае **FastAPI** будет ожидать тело запроса в формате:

```JSON hl_lines="2"
{

constraints.NotEmpty.message = {item} は未入力です。
constraints.ParametersScriptAssert.message = スクリプト式「{script}」がtrueではありません。
constraints.Range.message = {item} は {min} から {max} の範囲にある必要があります。
constraints.SafeHtml.message = {item} は危険な HTML コンテンツを含んでいます。
constraints.ScriptAssert.message = スクリプト式「{script}」がtrueではありません。
constraints.URL.message = {item} は有効なURLではありません。
constraints.Required.message = {item} が必要です。

```Python
item: Item = Body(embed=True)
```

so wie in:

{* ../../docs_src/body_multiple_params/tutorial005_an_py310.py hl[17] *}

In diesem Fall erwartet **FastAPI** einen Body wie:

```JSON hl_lines="2"
{
    "item": {

  private static final class LoggerHolder {
    static final Logger logger = Logger.getLogger(CacheBuilder.class.getName());
  }

  static final int UNSET_INT = -1;

  boolean strictParsing = true;

  int initialCapacity = UNSET_INT;
  int concurrencyLevel = UNSET_INT;
  long maximumSize = UNSET_INT;
  long maximumWeight = UNSET_INT;
  @Nullable Weigher<? super K, ? super V> weigher;

					// same nested structure
					if _, ok := joinedNestedSchemaMap[fullRelsName]; !ok {
						if value := reflect.ValueOf(values[idx]).Elem(); value.Kind() == reflect.Ptr && value.IsNil() {
							isNilPtrValue = true
							break
						}

						relValue.Set(reflect.New(relValue.Type().Elem()))
						joinedNestedSchemaMap[fullRelsName] = nil
					}
				}
				currentReflectValue = relValue
			}

        }
        // requireNonNull is safe because of the contains check.
        Map.Entry<?, ?> entry = requireNonNull((Map.Entry<?, ?>) o);
        removeValuesForKey(entry.getKey());
        return true;
      }
    }

    @SuppressWarnings("unchecked")
    @Override
    public @Nullable Collection<V> get(@Nullable Object key) {
      return containsKey(key) ? multimap.get((K) key) : null;
    }

        }
        // requireNonNull is safe because of the contains check.
        Map.Entry<?, ?> entry = requireNonNull((Map.Entry<?, ?>) o);
        removeValuesForKey(entry.getKey());
        return true;
      }
    }

    @SuppressWarnings("unchecked")
    @Override
    public @Nullable Collection<V> get(@Nullable Object key) {
      return containsKey(key) ? multimap.get((K) key) : null;
    }

                    .body(FileUtil.readUTF8(file))
                    .execute()) {
                final Map<String, Object> contentMap = response.getContent(OpenSearchCurl.jsonParser());
                if (!Constants.TRUE.equalsIgnoreCase(contentMap.get("acknowledged").toString())) {
                    throw new DictionaryException("Failed to update " + dictFile.getPath());
                }
            } catch (final IOException e) {