from fastapi import FastAPI
from fastapi.responses import JSONResponse

app = FastAPI()


@app.get("/headers/")
def get_headers():
    content = {"message": "Hello World"}
    headers = {"X-Cat-Dog": "alone in the world", "Content-Language": "en-US"}

def test_get(client: TestClient):
    response = client.get("/")
    assert response.json() == {"custom_field": [1.0, 2.0, 3.0]}


def test_typeadapter():
    # This test is only to confirm that Pydantic alone is working as expected
    from pydantic import (
        BaseModel,
        ConfigDict,
        PlainSerializer,
        TypeAdapter,
        WithJsonSchema,
    )

    class FakeNumpyArray:

from fastapi import FastAPI, Response

app = FastAPI()


@app.get("/headers-and-object/")
def get_headers(response: Response):
    response.headers["X-Cat-Dog"] = "alone in the world"

 *
 * <p><b>Warning:</b> The methods of {@code ForwardingFuture} forward <b>indiscriminately</b> to the
 * methods of the delegate. For example, overriding {@link #get(long, TimeUnit)} alone <b>will
 * not</b> change the behavior of {@link #get()}, which can lead to unexpected behavior. In this
 * case, you should override {@code get()} as well.
 *

 *
 * <p><b>Warning:</b> The methods of {@code ForwardingFluentFuture} forward <b>indiscriminately</b>
 * to the methods of the delegate. For example, overriding {@link #get(long, TimeUnit)} alone
 * <b>will not</b> change the behavior of {@link #get()}, which can lead to unexpected behavior. In
 * this case, you should override {@code get()} as well.
 *

 *
 * <p><b>Warning:</b> The methods of {@code ForwardingListenableFuture} forward
 * <b>indiscriminately</b> to the methods of the delegate. For example, overriding {@link #get(long,
 * TimeUnit)} alone <b>will not</b> change the behavior of {@link #get()}, which can lead to
 * unexpected behavior. In this case, you should override {@code get()} as well.
 *

It's still possible to use `BackgroundTask` alone in FastAPI, but you have to create the object in your code and return a Starlette `Response` including it.

You can see more details in [Starlette's official docs for Background Tasks](https://www.starlette.dev/background/).

## Decision

New properties will adhere to the explicit naming rules, and existing properties will be updated where possible.

The naming rules are user-centric.
By the name alone, users will be able to determine whether the property (and the corresponding feature) is public or internal, stable or unstable.

Shared scheme

```
org.gradle[.<qualifier>].<feature-name>.<detail>
```

      use, offer to sell, sell, import, and otherwise transfer the Work,
      where such license applies only to those patent claims licensable
      by such Contributor that are necessarily infringed by their
      Contribution(s) alone or by combination of their Contribution(s)
      with the Work to which such Contribution(s) was submitted. If You
      institute patent litigation against any entity (including a

/// note

Keep in mind that in this case, FastAPI won't check the contents of the list.

For example, `list[int]` would check (and document) that the contents of the list are integers. But `list` alone wouldn't.

///

## Declare more metadata { #declare-more-metadata }

You can add more information about the parameter.