Examples:

    Source (English) – The code block is a bash code example with one comment:

        «««
        ```bash
        # Print greeting
        echo "Hello, World!"
        ```
        »»»

    Result (German):

        «««
        ```bash
        # Gruß ausgeben
        echo "Hello, World!"
        ```
        »»»

    # this if using obj.model_validate becomes independent of Pydantic v2
    with warnings.catch_warnings(record=True):
        warnings.simplefilter("always")
        # No heroes before creating
        response = client.get("heroes/")
        assert response.status_code == 200, response.text
        assert response.json() == []

        # Create a hero
        response = client.post(
            "/heroes/",

    # this if using obj.model_validate becomes independent of Pydantic v2
    with warnings.catch_warnings(record=True):
        warnings.simplefilter("always")
        # No heroes before creating
        response = client.get("heroes/")
        assert response.status_code == 200, response.text
        assert response.json() == []

        # Create a hero
        response = client.post(
            "/heroes/",

Hier definieren wir die Konfiguration `env_file` innerhalb Ihrer Pydantic-`Settings`-Klasse und setzen den Wert auf den Dateinamen mit der dotenv-Datei, die wir verwenden möchten.

### Die `Settings` nur einmal laden mittels `lru_cache` { #creating-the-settings-only-once-with-lru-cache }

* 📝 Update docs for `ORJSONResponse` with details about improving performance. PR [#2615](https://github.com/tiangolo/fastapi/pull/2615) by [@falkben](https://github.com/falkben).
* 📝 Add docs for creating a custom Response class. PR [#5331](https://github.com/tiangolo/fastapi/pull/5331) by [@tiangolo](https://github.com/tiangolo).