}
            ]
        }
    }


@app.put("/items/{item_id}")
async def update_item(item_id: int, item: Item):
    results = {"item_id": item_id, "item": item}

app = FastAPI()


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


@app.put("/items/{item_id}")
async def update_item(
    item_id: int,
    item: Item = Body(
        examples=[
            {
                "name": "Foo",
                "description": "A very nice Item",
                "price": 35.4,

app = FastAPI()


@dataclass
class Item:
    name: str
    price: Optional[float] = None
    owner_ids: Optional[list[int]] = None


@app.get("/items/invalid", response_model=Item)
def get_invalid():
    return {"name": "invalid", "price": "foo"}


@app.get("/items/innerinvalid", response_model=Item)
def get_innerinvalid():

app = FastAPI()


class Item(BaseModel):
    name: str = Field(examples=["Foo"])
    description: Union[str, None] = Field(default=None, examples=["A very nice Item"])
    price: float = Field(examples=[35.4])
    tax: Union[float, None] = Field(default=None, examples=[3.2])


@app.put("/items/{item_id}")
async def update_item(item_id: int, item: Item):
    results = {"item_id": item_id, "item": item}

from dataclasses import dataclass
from typing import Union

from fastapi import FastAPI


@dataclass
class Item:
    name: str
    price: float
    description: Union[str, None] = None
    tax: Union[float, None] = None


app = FastAPI()


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

                            "schema": {"type": "integer", "title": "Item Id"},
                        }
                    ],
                    "requestBody": {
                        "required": True,
                        "content": {
                            "application/json": {
                                "schema": {"$ref": "#/components/schemas/Item"}
                            }
                        },

                            "schema": {"type": "integer", "title": "Item Id"},
                        }
                    ],
                    "requestBody": {
                        "required": True,
                        "content": {
                            "application/json": {
                                "schema": {"$ref": "#/components/schemas/Item"}
                            }
                        },

app = FastAPI()


class Item(BaseModel):
    name: str
    description: str | None = Field(
        default=None, title="The description of the item", max_length=300
    )
    price: float = Field(gt=0, description="The price must be greater than zero")
    tax: float | None = None


@app.put("/items/{item_id}")
async def update_item(item_id: int, item: Annotated[Item, Body(embed=True)]):

constraints.URL.message = {item} nie jest prawidłowym adresem URL.
constraints.Required.message = {item} jest wymagane.
constraints.TypeInteger.message = {item} musi być liczbą.
constraints.TypeLong.message = {item} musi być liczbą.
constraints.TypeFloat.message = {item} musi być liczbą.
constraints.TypeDouble.message = {item} musi być liczbą.
constraints.TypeAny.message = {item} nie może być przekonwertowane na {propertyType}.

  private static final class TestObject {
    final int group;
    final int item;

    TestObject(int group, int item) {
      this.group = group;
      this.item = item;
    }

    @Override
    public String toString() {
      return MoreObjects.toStringHelper("TestObject")
          .add("group", group)
          .add("item", item)
          .toString();
    }
  }