*
   * @param formal The type whose type variables or itself is mapped to other type(s). It's almost
   *     always a bug if {@code formal} isn't a type variable and contains no type variable. Make
   *     sure you are passing the two parameters in the right order.
   * @param actual The type that the formal type variable(s) are mapped to. It can be or contain yet

   *
   * @param formal The type whose type variables or itself is mapped to other type(s). It's almost
   *     always a bug if {@code formal} isn't a type variable and contains no type variable. Make
   *     sure you are passing the two parameters in the right order.
   * @param actual The type that the formal type variable(s) are mapped to. It can be or contain yet

### Classes en tant que types

Vous pouvez aussi déclarer une classe comme type d'une variable.

Disons que vous avez une classe `Person`, avec une variable `name` :

{*../../docs_src/python_types/tutorial010.py hl[1:3] *}


Vous pouvez ensuite déclarer une variable de type `Person` :

{*../../docs_src/python_types/tutorial010.py hl[6] *}

#### Liste { #list }

Definieren wir zum Beispiel eine Variable, die eine `list` von `str` – eine Liste von Strings – sein soll.

Deklarieren Sie die Variable mit der gleichen Doppelpunkt-Syntax (`:`).

Als Typ nehmen Sie `list`.

Da die Liste ein Typ ist, welcher innere Typen enthält, werden diese von eckigen Klammern umfasst:

#### Lista { #list }

Por ejemplo, vamos a definir una variable para ser una `list` de `str`.

Declara la variable, con la misma sintaxis de dos puntos (`:`).

Como tipo, pon `list`.

Como la lista es un tipo que contiene algunos tipos internos, los pones entre corchetes:

	}
}

func serverHandleEnvVars() {
	var err error
	if globalBrowserEnabled {
		if redirectURL := env.Get(config.EnvBrowserRedirectURL, ""); redirectURL != "" {
			u, err := xnet.ParseHTTPURL(redirectURL)
			if err != nil {
				logger.Fatal(err, "Invalid MINIO_BROWSER_REDIRECT_URL value in environment variable")
			}

#### List { #list }

For example, let's define a variable to be a `list` of `str`.

Declare the variable, with the same colon (`:`) syntax.

As the type, put `list`.

As the list is a type that contains some internal types, you put them in square brackets:

                    .parser(parser)
                    .variable(LineReader.LIST_MAX, 50) // max tab completion candidates
                    .variable(LineReader.HISTORY_FILE, history)
                    .variable(LineReader.OTHERS_GROUP_NAME, "Others")
                    .variable(LineReader.COMPLETION_STYLE_GROUP, "fg:blue,bold")
                    .variable("HELP_COLORS", "ti=1;34:co=38:ar=3:op=33:de=90")

export MINIO_IDENTITY_LDAP_TLS_SKIP_VERIFY=on
```

### Variable substitution in configuration strings

In the configuration variables, `%s` is substituted with the _username_ from the STS request and `%d` is substituted with the _distinguished username (user DN)_ of the LDAP user. Please see the following table for which configuration variables support these substitution variables:

| Variable                                    | Supported substitutions |

////

Ese comando creará o modificará algunas [variables de entorno](environment-variables.md){.internal-link target=_blank} que estarán disponibles para los siguientes comandos.

Una de esas variables es la variable `PATH`.

/// tip | Consejo

Puedes aprender más sobre la variable de entorno `PATH` en la sección [Variables de Entorno](environment-variables.md#path-environment-variable){.internal-link target=_blank}.

///