app = FastAPI()


class Item(BaseModel):
    name: str
    description: Union[str, None] = None
    price: float
    tax: Union[float, None] = None
    tags: set[str] = set()


@app.post("/items/", response_model=Item, summary="Create an item")
async def create_item(item: Item):
    """
    Create an item with all the information:

    - **name**: each item must have a name

                    },
                    "summary": "Update Item",
                },
            },
        },
        "components": {
            "schemas": {
                "Body_update_item_items__item_id__put": {
                    "properties": {
                        "item": {
                            "$ref": "#/components/schemas/Item",
                        },
                        "user": {

app = FastAPI()

items = {"foo": "The Foo Wrestlers"}


@app.get("/items/{item_id}")
async def read_item(item_id: str):
    if item_id not in items:
        raise HTTPException(
            status_code=404,
            detail="Item not found",
            headers={"X-Error": "Some custom header"},
        )
    return {"item": items[item_id]}

constraints.URL.message = {item} não é uma URL válida.
constraints.Required.message = {item} é obrigatório.
constraints.TypeInteger.message = {item} deve ser um número.
constraints.TypeLong.message = {item} deve ser um número.
constraints.TypeFloat.message = {item} deve ser um número.
constraints.TypeDouble.message = {item} deve ser um número.
constraints.TypeAny.message = {item} não pode ser convertido para {propertyType}.

            }
            item = newItem;
        }

        /**
         * Writes a synonym item to the temporary file.
         * If the item is being updated, it writes the new version.
         *
         * @param oldItem The original item from the dictionary.
         * @return The written item, or null if the item was deleted.

            ],
        },
    )
    assert response.status_code == 200, response.text
    assert response.json() == {
        "item_id": 123,
        "item": {
            "name": "Foo",
            "description": "A very nice Item",
            "price": 35.4,
            "tax": 3.2,
            "tags": IsList("foo", "bar", check_order=False),
            "images": [

from fastapi import FastAPI
from pydantic import BaseModel


class Item(BaseModel):
    name: str
    description: Optional[str] = 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",

from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    name: Optional[str] = None


class ExtendedItem(Item):
    age: int


@app.post("/items/")
def save_union_different_body(item: Union[ExtendedItem, Item]):
    return {"item": item}


client = TestClient(app)


def test_post_extended_item():
    response = client.post("/items/", json={"name": "Foo", "age": 5})

from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    name: str
    description: Union[str, None] = None
    price: float
    tax: Union[float, None] = None
    tags: list[str] = []


@app.post("/items/", response_model=Item)
async def create_item(item: Item) -> Any:
    return item


@app.get("/items/", response_model=list[Item])
async def read_items() -> Any:
    return [

/**
 * Represents an item in a stemmer override dictionary.
 * This class stores a mapping from an input word to its corresponding
 * output stem. It also tracks updated values for the item.
 */
public class StemmerOverrideItem extends DictionaryItem {
    /** The original input word. */
    private final String input;

    /** The original output stem. */
    private final String output;