def test_query_list_empty():
    response = client.get("/query/list/")
    assert response.status_code == 422


def test_query_list_default():
    response = client.get("/query/list-default/?device_ids=1&device_ids=2")
    assert response.status_code == 200
    assert response.json() == [1, 2]


def test_query_list_default_empty():
    response = client.get("/query/list-default/")

    ```

* `description: Union[str, None] = None` (or `str | None = None` in Python 3.10) has a default of `None`.
* `tax: float = 10.5` has a default of `10.5`.
* `tags: List[str] = []` has a default of an empty list: `[]`.

but you might want to omit them from the result if they were not actually stored.

                    "msg": "field required",
                    "type": "value_error.missing",
                },
            ]
        }
    )


def test_post_body_empty_list(client: TestClient):
    response = client.put("/items/5", json=[])
    assert response.status_code == 422
    assert response.json() == IsDict(
        {
            "detail": [
                {

                    "msg": "field required",
                    "type": "value_error.missing",
                },
            ]
        }
    )


def test_post_body_empty_list(client: TestClient):
    response = client.put("/items/5", json=[])
    assert response.status_code == 422
    assert response.json() == IsDict(
        {
            "detail": [
                {

                    "msg": "field required",
                    "type": "value_error.missing",
                },
            ]
        }
    )


@needs_py310
def test_post_body_empty_list(client: TestClient):
    response = client.put("/items/5", json=[])
    assert response.status_code == 422
    assert response.json() == IsDict(
        {
            "detail": [
                {

    For example, in `app/main.py` you could have a line like:

    ```
    from app.routers import items
    ```

* The `app` directory contains everything. And it has an empty file `app/__init__.py`, so it is a "Python package" (a collection of "Python modules"): `app`.

a[data-terminal-control] {
    text-align: right;
    display: block;
    color: #aebbff;
}

[data-ty] {
    display: block;
    line-height: 2;
}

[data-ty]:before {
    /* Set up defaults and ensure empty lines are displayed. */
    content: '';
    display: inline-block;
    vertical-align: middle;
}

[data-ty="input"]:before,
[data-ty-prompt]:before {
    margin-right: 0.75em;

### Fixes

* 🐛 Fix `RuntimeError` raised when `HTTPException` has a status code with no content. PR [#5365](https://github.com/tiangolo/fastapi/pull/5365) by [@iudeen](https://github.com/iudeen).
* 🐛 Fix empty reponse body when default `status_code` is empty but the a `Response` parameter with `response.status_code` is set. PR [#5360](https://github.com/tiangolo/fastapi/pull/5360) by [@tmeckel](https://github.com/tmeckel).

### Docs

                    "msg": "field required",
                    "type": "value_error.missing",
                },
            ]
        }
    )


@needs_py310
def test_post_body_empty_list(client: TestClient):
    response = client.put("/items/5", json=[])
    assert response.status_code == 422
    assert response.json() == IsDict(
        {
            "detail": [
                {

                    "msg": "field required",
                    "type": "value_error.missing",
                },
            ]
        }
    )


@needs_py39
def test_post_body_empty_list(client: TestClient):
    response = client.put("/items/5", json=[])
    assert response.status_code == 422
    assert response.json() == IsDict(
        {
            "detail": [
                {