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Ahora creamos una dependencia que devuelve un nuevo `config.Settings()`.

{* ../../docs_src/settings/app02_an_py39/main.py hl[6,12:13] *}

/// tip | Consejo

Hablaremos del `@lru_cache` en un momento.

Por ahora puedes asumir que `get_settings()` es una función normal.

///

Y luego podemos requerirlo desde la *path operation function* como una dependencia y usarlo donde lo necesitemos.

De resto, **FastAPI** cuida disso para você.

///

## Atualize as dependências

Agora vamos atualizar nossas dependências.

Queremos obter o `user_user` *somente* se este usuário estiver ativo.

Portanto, criamos uma dependência adicional `get_current_active_user` que por sua vez usa `get_current_user` como dependência.

   */
  @CanIgnoreReturnValue
  public static int checkElementIndex(int index, int size, String desc) {
    // Carefully optimized for execution by hotspot (explanatory comment above)
    if (index < 0 || index >= size) {
      throw new IndexOutOfBoundsException(badElementIndex(index, size, desc));
    }
    return index;
  }

### Renovação de Certificados

Em algum momento futuro, cada certificado irá **expirar** (aproximadamente 3 meses após a aquisição).