* iterable}. The iterator's {@code hasNext()} method returns {@code true} until {@code iterable}
   * is empty.
   *
   * <p><b>Warning:</b> Typical uses of the resulting iterator may produce an infinite loop. You
   * should use an explicit {@code break} or be certain that you will eventually remove all the
   * elements.
   */

   * iterable}. The iterator's {@code hasNext()} method returns {@code true} until {@code iterable}
   * is empty.
   *
   * <p><b>Warning:</b> Typical uses of the resulting iterator may produce an infinite loop. You
   * should use an explicit {@code break} or be certain that you will eventually remove all the
   * elements.
   */

 * <p>See the Guava User Guide article on <a
 * href="https://github.com/google/guava/wiki/PrimitivesExplained">primitive utilities</a>.
 *
 * @author Kevin Bourrillion
 * @since 1.0
 */
// TODO(kevinb): how to prevent warning on UnsignedBytes when building GWT
// javadoc?
@GwtCompatible
public final class Bytes {
  private Bytes() {}

  /**
   * Returns a hash code for {@code value}; obsolete alternative to {@link Byte#hashCode(byte)}.

In this section you will see how to manage authentication and authorization with the same OAuth2 with scopes in your **FastAPI** application.

/// warning

This is a more or less advanced section. If you are just starting, you can skip it.

You don't necessarily need OAuth2 scopes, and you can handle authentication and authorization however you want.

### Utiliser des gestionnaires de contexte dans des dépendances avec `yield` { #using-context-managers-in-dependencies-with-yield }

/// warning | Alertes

C'est, plus ou moins, une idée « avancée ».

Si vous débutez avec **FastAPI**, vous voudrez peut-être l'ignorer pour le moment.

///

                return getProperty(SPNEGO_ALLOW_BASIC, "true");
            }
            if (SpnegoHttpFilter.Constants.ALLOW_UNSEC_BASIC.equals(name)) {
                // SECURITY WARNING: Unsecure basic authentication is enabled by default.
                // This sends credentials in Base64 encoding over potentially unencrypted connections.

       */
      try (URLClassLoader finalizerLoader = newLoader(getBaseUrl())) {
        return finalizerLoader.loadClass(FINALIZER_CLASS_NAME);
      } catch (Exception e) {
        logger.log(Level.WARNING, LOADING_ERROR, e);
        return null;
      }
    }

    /** Gets URL for base of path containing Finalizer.class. */
    URL getBaseUrl() throws IOException {

UserInDB(
    username = user_dict["username"],
    password = user_dict["password"],
    email = user_dict["email"],
    full_name = user_dict["full_name"],
    hashed_password = hashed_password,
)
```

/// warning | 注意

追加のサポート関数`fake_password_hasher`と`fake_save_user`は、データの可能な流れをデモするだけであり、もちろん本当のセキュリティを提供しているわけではありません。

///

## 重複の削減 { #reduce-duplication }

コードの重複を減らすことは、**FastAPI**の中核的なアイデアの１つです。

### Использование менеджеров контекста в зависимостях с `yield` { #using-context-managers-in-dependencies-with-yield }

/// warning | Внимание

Это, более или менее, «продвинутая» идея.

Если вы только начинаете работать с **FastAPI**, то лучше пока пропустить этот пункт.

///

 *
 * <p>If neither {@link #skipNulls()} nor {@link #useForNull(String)} is specified, the joining
 * methods will throw {@link NullPointerException} if any given element is null.
 *
 * <p><b>Warning: joiner instances are always immutable</b>; a configuration method such as {@code
 * useForNull} has no effect on the instance it is invoked on! You must store and use the new joiner