return URL_QUEUE_SERVICE_THREAD_LOCAL.get();
    }

    /**
     * Sets the UrlQueueService instance to the thread-local variable.
     * If the provided UrlQueueService is null, it removes the current instance from the thread-local variable.
     *
     * @param urlQueueService the UrlQueueService instance to be set, or null to remove the current instance
     */

Esse comando criará ou modificará algumas [variáveis ​​de ambiente](environment-variables.md){.internal-link target=_blank} que estarão disponíveis para os próximos comandos.

Uma dessas variáveis ​​é a variável `PATH`.

/// tip | Dica

Você pode aprender mais sobre a variável de ambiente `PATH` na seção [Variáveis ​​de ambiente](environment-variables.md#path-environment-variable){.internal-link target=_blank}.

///

  throw new GradleException("You must set the VAULT_ADDR environment variable to use this init script.")
}

if (System.getenv('VAULT_ROLE_ID') == null && System.getenv('VAULT_SECRET_ID') == null && System.getenv('VAULT_TOKEN') == null) {
  throw new GradleException("You must set either the VAULT_ROLE_ID and VAULT_SECRET_ID environment variables, " +
    "or the VAULT_TOKEN environment variable to use this init script.")
}

Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
    fi
else
    JAVACMD=java
    if ! command -v java >/dev/null 2>&1
    then
        die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.

Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."

////

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}.

///

mc cat myminio-newuser/my-bucketname/my-objectname
```

### Policy Variables

You can use policy variables in the *Resource* element and in string comparisons in the *Condition* element.

////

That command will create or modify some [environment variables](environment-variables.md){.internal-link target=_blank} that will be available for the next commands.

One of those variables is the `PATH` variable.

/// tip

You can learn more about the `PATH` environment variable in the [Environment Variables](environment-variables.md#path-environment-variable){.internal-link target=_blank} section.

///

Here we declare the setting `openapi_url` with the same default of `"/openapi.json"`.

And then we use it when creating the `FastAPI` app.

Then you could disable OpenAPI (including the UI docs) by setting the environment variable `OPENAPI_URL` to the empty string, like:

<div class="termy">

```console
$ OPENAPI_URL= uvicorn main:app

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)

Example:

```sh
export MINIO_BROWSER=off
minio server /data
```

### Domain

#### 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: