with client.websocket_connect("/items/foo/ws") as websocket:
            message = "Message one"
            websocket.send_text(message)
            data = websocket.receive_text()
            assert data == "Session cookie or query token value is: fakesession"
            data = websocket.receive_text()
            assert data == f"Message text was: {message}, for item ID: foo"
            message = "Message two"

@needs_py39
def test_get_valid_headers(client: TestClient):
    response = client.get(
        "/items/",
        headers={
            "X-Token": "fake-super-secret-token",
            "X-Key": "fake-super-secret-key",
        },
    )
    assert response.status_code == 200, response.text
    assert response.json() == [{"item": "Foo"}, {"item": "Bar"}]


@needs_py39
def test_openapi_schema(client: TestClient):

    Item<T> itemInfo = getItem(groupNumber, itemNumber);
    Item<T> relatedInfo = getItem(groupNumber, relatedItemNumber);

    T item = itemInfo.value;
    T related = relatedInfo.value;
    assertWithTemplate(
        "$ITEM must be $RELATIONSHIP to $OTHER",
        itemInfo,
        relatedInfo,
        equivalence.equivalent(item, related));

from fastapi import FastAPI
from pydantic import BaseModel


class Item(BaseModel):
    name: str
    description: Union[str, None] = None


app = FastAPI()


@app.post("/items/")
def create_item(item: Item):
    return item


@app.get("/items/")
def read_items() -> List[Item]:
    return [
        Item(
            name="Portal Gun",

}


@app.get("/items/{item_id}", response_model=Item, response_model_exclude_unset=True)
async def read_item(item_id: str):

      assertEquals(
          "the hash of " + item + " must be consistent",
          equivalence.hash(item),
          equivalence.hash(item));
    }
  }

      assertEquals(
          "the hash of " + item + " must be consistent",
          equivalence.hash(item),
          equivalence.hash(item));
    }
  }

                    "properties": {
                        "name": {"title": "Name", "type": "string"},
                        "items": {
                            "title": "Items",
                            "type": "array",
                            "items": {"$ref": "#/components/schemas/Item"},
                        },
                    },
                },
                "HTTPValidationError": {

### Перевірте

Відкрийте браузер та введіть адресу <a href="http://127.0.0.1:8000/items/5?q=somequery" class="external-link" target="_blank">http://127.0.0.1:8000/items/5?q=somequery</a>.

Ви побачите у відповідь подібний JSON:

```JSON
{"item_id": 5, "q": "somequery"}
```

Ви вже створили API, який:

* Отримує HTTP запити за _шляхами_ `/` та `/items/{item_id}`.

}


@app.get("/items/{item_id}", response_model=Item, response_model_exclude_unset=True)
async def read_item(item_id: str):