### Erstellen Sie eine `Enum`-Klasse

Importieren Sie `Enum` und erstellen Sie eine Unterklasse, die von `str` und `Enum` erbt.

Indem Sie von `str` erben, weiß die API Dokumentation, dass die Werte des Enums vom Typ `str` sein müssen, und wird in der Lage sein, korrekt zu rendern.

<img src="/img/tutorial/path-operation-configuration/image01.png">

### Tags with Enums { #tags-with-enums }

If you have a big application, you might end up accumulating **several tags**, and you would want to make sure you always use the **same tag** for related *path operations*.

In these cases, it could make sense to store the tags in an `Enum`.

**FastAPI** supports that the same way as with plain strings:

     * @throws IllegalAccessRuntimeException if the number of actual and formal parameters differ, if primitive arguments cannot be converted, or if the class is related to enums
     * @see Constructor#newInstance(Object[])
     */
    public static <T> T newInstance(final Constructor<T> constructor, final Object... args)
            throws InstantiationRuntimeException, IllegalAccessRuntimeException {

  }

  static <T extends Enum<T>> Optional<T> getEnumIfPresent(Class<T> enumClass, String value) {
    WeakReference<? extends Enum<?>> ref = Enums.getEnumConstants(enumClass).get(value);
    /*
     * We use `fromNullable` instead of `of` because `WeakReference.get()` has a nullable return
     * type.
     *
     * In practice, we are very unlikely to see `null`: The `WeakReference` to the enum constant

### Create an `Enum` class { #create-an-enum-class }

Import `Enum` and create a sub-class that inherits from `str` and from `Enum`.

By inheriting from `str` the API docs will be able to know that the values must be of type `string` and will be able to render correctly.

### Crear una clase `Enum`

Importa `Enum` y crea una subclase que herede de `str` y de `Enum`.

Al heredar de `str`, la documentación de la API podrá saber que los valores deben ser de tipo `string` y podrá representarlos correctamente.

### Створення класу `Enum`

Імпортуйте `Enum` і створіть підклас, що наслідується від `str` та `Enum`.

Наслідуючи від `str`, документація API зможе визначити, що значення повинні бути типу `string`, і правильно їх відобразить.

	public static final field QUIC Lokhttp3/Protocol;
	public static final field SPDY_3 Lokhttp3/Protocol;
	public static final fun get (Ljava/lang/String;)Lokhttp3/Protocol;
	public static fun getEntries ()Lkotlin/enums/EnumEntries;
	public fun toString ()Ljava/lang/String;
	public static fun valueOf (Ljava/lang/String;)Lokhttp3/Protocol;
	public static fun values ()[Lokhttp3/Protocol;
}

    /**
     * Identifier used to encode this strategy, when marshalled as part of a BloomFilter. Only
     * values in the [-128, 127] range are valid for the compact serial form. Non-negative values
     * are reserved for enums defined in BloomFilterStrategies; negative values are reserved for any
     * custom, stateful strategy we may define (e.g. any kind of strategy that would depend on user
     * input).
     */
    int ordinal();
  }

	public static final field QUIC Lokhttp3/Protocol;
	public static final field SPDY_3 Lokhttp3/Protocol;
	public static final fun get (Ljava/lang/String;)Lokhttp3/Protocol;
	public static fun getEntries ()Lkotlin/enums/EnumEntries;
	public fun toString ()Ljava/lang/String;
	public static fun valueOf (Ljava/lang/String;)Lokhttp3/Protocol;
	public static fun values ()[Lokhttp3/Protocol;
}