* Documentation: the generated OpenAPI (and the UI at `/docs`) will
                    show it as the response (JSON Schema).
                * Serialization: you could return an arbitrary object and the
                    `response_model` would be used to serialize that object into the
                    corresponding JSON.
                * Filtering: the JSON sent to the client will only contain the data

Dafür verwenden Sie Pythons Standard-`typing.List` (oder nur `list` in Python 3.9 und höher):

{* ../../docs_src/extra_models/tutorial004_py39.py hl[18] *}

## Response mit beliebigem `dict` { #response-with-arbitrary-dict }

Sie können auch eine Response deklarieren, die ein beliebiges `dict` zurückgibt, indem Sie nur die Typen der Schlüssel und Werte ohne ein Pydantic-Modell deklarieren.

    * New documentation about returning arbitrary `dict`s in responses: [Response with arbitrary `dict`](https://fastapi.tiangolo.com/tutorial/extra-models/#response-with-arbitrary-dict).
    * **Technical Details**:
        * When declaring a `response_model` it is used directly to generate the response content, from whatever was returned from the *path operation function*.