headers={"X-Error": "Some custom header"},
        )
    return {"item": items[item_id]}


@app.get("/http-no-body-statuscode-exception")
async def no_body_status_code_exception():
    raise HTTPException(status_code=204)


@app.get("/http-no-body-statuscode-with-detail-exception")
async def no_body_status_code_with_detail_exception():

Con `Form` puedes declarar las mismas configuraciones que con `Body` (y `Query`, `Path`, `Cookie`), incluyendo validación, ejemplos, un alias (por ejemplo, `user-name` en lugar de `username`), etc.

/// info | Información

`Form` es una clase que hereda directamente de `Body`.

///

/// tip | Consejo

/// info

`Form` is a class that inherits directly from `Body`.

///

/// tip

To declare form bodies, you need to use `Form` explicitly, because without it the parameters would be interpreted as query parameters or body (JSON) parameters.

///

        @app.post("/example/")
        def example(item: Item = Body(example={"data": "Data in Body example"})):
            return item

    @app.post("/examples/")
    def examples(
        item: Item = Body(
            examples=[
                {"data": "Data in Body examples, example1"},
                {"data": "Data in Body examples, example2"},
            ],
        ),
    ):
        return item

/// warning | Achtung

Sie können mehrere `File`- und `Form`-Parameter in einer *Pfadoperation* deklarieren, aber Sie können nicht auch `Body`-Felder deklarieren, die Sie als JSON erwarten, da der Body des <abbr title="Request – Anfrage: Daten, die der Client zum Server sendet">Request</abbr> mittels `multipart/form-data` statt `application/json` kodiert sein wird.

    assert response.json() == {
        "detail": [
            {
                "type": "missing",
                "loc": ["body", "grant_type"],
                "msg": "Field required",
                "input": None,
            },
            {
                "type": "missing",
                "loc": ["body", "username"],
                "msg": "Field required",
                "input": None,
            },
            {

    RtmStartResponse rtmStartResponse = slackApi.rtmStart(accessToken);
    webSocket = slackApi.rtm(rtmStartResponse.url, this);
  }

  // TODO(jwilson): can I read the response body? Do I have to?
  //                the body from slack is a 0-byte-buffer
  @Override public synchronized void onOpen(WebSocket webSocket, Response response) {
    System.out.println("onOpen: " + response);
  }

        "detail": [
            {
                "type": "missing",
                "loc": ["body", "username"],
                "msg": "Field required",
                "input": {"tags": ["foo", "bar"], "with": "nothing"},
            },
            {
                "type": "missing",
                "loc": ["body", "lastname"],
                "msg": "Field required",

      return
    }

    val body = response.body ?: return
    socket.sleepWhileOpen(response.bodyDelayNanos)
    val responseBodySink =
      socket.sink
        .withThrottlingAndSocketEffect(
          policy = response,
          socketEffect = response.onResponseBody,
          expectedByteCount = body.contentLength,
          socket = socket,
        ).buffer()
    body.writeTo(responseBodySink)

            {
                "input": None,
                "loc": [
                    "body",
                    "item",
                ],
                "msg": "Field required",
                "type": "missing",
            },
            {
                "input": None,
                "loc": [
                    "body",
                    "user",
                ],
                "msg": "Field required",