//                                                                             Helpers
    //                                                                           =========

    /**
     * Checks if login is required for the current request based on configuration
     * and user authentication status.
     *
     * @return true if login is required, false otherwise
     */

        return of(element);
      default:
        return new RegularImmutableList<E>(ImmutableList.<E>nullCheckedList(elements));
    }
  }

  // Factory method that skips the null checks.  Used only when the elements
  // are guaranteed to be non-null.
  static <E> ImmutableList<E> unsafeDelegateList(List<? extends E> list) {
    switch (list.size()) {
      case 0:
        return of();

    }

    @Test
    void testReadDataWireFormat_EmptyBuffer() throws Exception {
        // Test with empty dataCount but decode still processes buffer
        // Note: SmbInfoAllocation.decode() doesn't check len parameter, always reads 20 bytes
        response = new Trans2QueryFSInformationResponse(config, FileSystemInformation.SMB_INFO_ALLOCATION);

        byte[] buffer = new byte[100];

Für den Fehler verwenden wir die Exception `HTTPException`:

{* ../../docs_src/security/tutorial003_an_py310.py hl[3,79:81] *}

### Das Passwort überprüfen { #check-the-password }

Zu diesem Zeitpunkt liegen uns die Benutzerdaten aus unserer Datenbank vor, das Passwort haben wir jedoch noch nicht überprüft.

Lassen Sie uns diese Daten zunächst in das Pydantic-Modell `UserInDB` einfügen.

Para el error, usamos la excepción `HTTPException`:

{* ../../docs_src/security/tutorial003_an_py310.py hl[3,79:81] *}

### Revisa el password { #check-the-password }

En este punto tenemos los datos del usuario de nuestra base de datos, pero no hemos revisado el password.

Primero pongamos esos datos en el modelo `UserInDB` de Pydantic.

{* ../../docs_src/metadata/tutorial004_py310.py hl[21,26] *}

/// info | 情報

タグの詳細は [Path Operation の設定](path-operation-configuration.md#tags) を参照してください。

///

### ドキュメントの確認 { #check-the-docs }

ここでドキュメントを確認すると、追加したメタデータがすべて表示されます:

<img src="/img/tutorial/metadata/image02.png">

### タグの順番 { #order-of-tags }

タグのメタデータ辞書の順序は、ドキュメントUIに表示される順序の定義にもなります。

    for (Class<?> supertype : supertypes) {
      for (Method method : supertype.getDeclaredMethods()) {
        if (method.isAnnotationPresent(Subscribe.class) && !method.isSynthetic()) {
          // TODO(cgdecker): Should check for a generic parameter type and error out
          Class<?>[] parameterTypes = method.getParameterTypes();
          checkArgument(
              parameterTypes.length == 1,

        long total = totalCalls.get();
        if (total == 0) {
            return 1.0;
        }
        return (double) totalSuccesses.get() / total;
    }

    /**
     * Check if circuit breaker allows requests
     *
     * @return true if requests are allowed
     */
    public boolean allowsRequests() {
        State current = evaluateState();
        return current != State.OPEN;

                methodMap.putIfAbsent(method.getName(), new MethodInfo(method, paramTypes[0]));
            }
        }

        return methodMap;
    }

    /**
     * Check if method is compatible with value type.
     */
    private boolean isMethodCompatible(Method method, Class<?> valueType) {
        if (valueType == null) {
            return true;
        }

read_users["/users/"]

common_parameters --> read_items
common_parameters --> read_users
```

Bu şekilde paylaşılan kodu bir kez yazarsınız ve onu *path operation*'larda çağırma işini **FastAPI** halleder.

/// check | Ek bilgi

Dikkat edin: Bunu "register" etmek ya da benzeri bir şey yapmak için özel bir class oluşturup **FastAPI**'ye bir yere geçirmeniz gerekmez.