// La variable d'environnement n'existe plus ensuite
$ python main.py

Hello World from Python
```

</div>

/// tip | Astuce

Vous pouvez en lire davantage sur [The Twelve-Factor App : Config](https://12factor.net/config).

///

## Gérer les types et la validation { #types-and-validation }

Hello Wade Wilson from Python

// The env var no longer exists afterwards
$ python main.py

Hello World from Python
```

</div>

/// tip | İpucu

Bu konuyla ilgili daha fazlasını [Twelve-Factor Uygulaması: Config](https://12factor.net/config) bölümünde okuyabilirsiniz.

///

## Türler ve Doğrulama { #types-and-validation }

Hello Wade Wilson from Python

// A variável de ambiente não existe mais depois
$ python main.py

Hello World from Python
```

</div>

/// tip | Dica

Você pode ler mais sobre isso em [The Twelve-Factor App: Config](https://12factor.net/config).

///

## Tipos e Validação { #types-and-validation }

// После этого переменная окружения больше не существует
$ python main.py

Hello World from Python
```

</div>

/// tip | Совет

Подробнее об этом можно прочитать на сайте [The Twelve-Factor App: Config](https://12factor.net/config).

///

## Типизация и Валидация { #types-and-validation }

Hello Wade Wilson from Python

// Після цього змінна оточення більше не існує
$ python main.py

Hello World from Python
```

</div>

/// tip | Порада

Ви можете прочитати більше у [The Twelve-Factor App: Config](https://12factor.net/config).

///

## Типи і перевірка { #types-and-validation }

Hello Wade Wilson from Python

// La env var ya no existe después
$ python main.py

Hello World from Python
```

</div>

/// tip | Consejo

Puedes leer más al respecto en [The Twelve-Factor App: Config](https://12factor.net/config).

///

## Tipos y Validación { #types-and-validation }

// Die Umgebungsvariable existiert danach nicht mehr
$ python main.py

Hello World from Python
```

</div>

/// tip | Tipp

Sie können mehr darüber lesen auf [The Twelve-Factor App: Config](https://12factor.net/config).

///

## Typen und Validierung { #types-and-validation }

2169          ; mapped                 ; 0078          # 1.1  ROMAN NUMERAL TEN
216A          ; mapped                 ; 0078 0069     # 1.1  ROMAN NUMERAL ELEVEN
216B          ; mapped                 ; 0078 0069 0069 #1.1  ROMAN NUMERAL TWELVE
216C          ; mapped                 ; 006C          # 1.1  ROMAN NUMERAL FIFTY
216D          ; mapped                 ; 0063          # 1.1  ROMAN NUMERAL ONE HUNDRED

 * **TlsVersion**: javaName

#### Renamed Functions

* **Headers.of()**: for symmetry with `listOf()`, `setOf()`, etc., we’ve replaced
  `Headers.of(String...)` with `headersOf(vararg String)`.

#### Extension Functions

We’ve migrated from static functions to extension functions where we think they fit.

| Java                                | Kotlin                          |

 * and the implementation should respond with a new request that sets the "Authorization" header.
 *
 * ```java
 * if (response.request().header("Authorization") != null) {
 *   return null; // Give up, we've already failed to authenticate.
 * }
 *
 * String credential = Credentials.basic(...)
 * return response.request().newBuilder()
 *     .header("Authorization", credential)
 *     .build();
 * ```
 *