This defines the name of the query parameter that should be provided in the request
    with the API key and integrates that into the OpenAPI documentation. It extracts
    the key value sent in the query parameter automatically and provides it as the
    dependency result. But it doesn't define how to send that API key to the client.

    ## Usage

        return {"message": "Notification sent in the background"}
    ```
    """

    def add_task(
        self,
        func: Annotated[
            Callable[P, Any],
            Doc(
                """
                The function to call after the response is sent.

                It can be a regular `def` function or an `async def` function.
                """

                HTTP status code to send to the client.
                """
            ),
        ],
        detail: Annotated[
            Any,
            Doc(
                """
                Any data to be sent to the client in the `detail` key of the JSON
                response.
                """
            ),
        ] = None,
        headers: Annotated[
            Optional[Dict[str, str]],
            Doc(