class Item(BaseModel):
    name: str
    description: str | None = None
    price: float
    tax: float | None = None
    tags: set[str] = set()
    image: Image | None = None


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

    description: Union[str, None] = None
    size: float


class ItemV2(BaseModelV2):
    name: str
    description: Union[str, None] = None
    size: float


app = FastAPI()


@app.post("/items/", response_model=ItemV2)
async def create_item(item: Item):

    limit: int = Field(100, gt=0, le=100)
    offset: int = Field(0, ge=0)
    order_by: Literal["created_at", "updated_at"] = "created_at"
    tags: list[str] = []


@app.get("/items/")
async def read_items(filter_query: Annotated[FilterParams, Query()]):

    name: str
    description: Union[str, None] = None
    price: float
    tax: Union[float, None] = None


class User(BaseModel):
    username: str
    full_name: Union[str, None] = None


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

from datetime import datetime, time, timedelta
from uuid import UUID

from fastapi import Body, FastAPI

app = FastAPI()


@app.put("/items/{item_id}")
async def read_items(
    item_id: UUID,
    start_datetime: datetime = Body(),
    end_datetime: datetime = Body(),
    process_after: timedelta = Body(),
    repeat_at: time | None = Body(default=None),
):
    start_process = start_datetime + process_after

from typing import Annotated

from fastapi import FastAPI, Path, Query

app = FastAPI()


@app.get("/items/{item_id}")
async def read_items(
    *,
    item_id: Annotated[int, Path(title="The ID of the item to get", ge=0, le=1000)],
    q: str,
    size: Annotated[float, Query(gt=0, lt=10.5)],
):
    results = {"item_id": item_id}
    if q:
        results.update({"q": q})
    if size:
        results.update({"size": size})

```JSON hl_lines="22"
{
    "openapi": "3.1.0",
    "info": {
        "title": "FastAPI",
        "version": "0.1.0"
    },
    "paths": {
        "/items/": {
            "get": {
                "summary": "Read Items",
                "operationId": "read_items_items__get",
                "responses": {
                    "200": {
                        "description": "Successful Response",

Например, если клиент попытается отправить query-параметр `tool` с значением `plumbus`, в виде:

```http
https://example.com/items/?limit=10&tool=plumbus
```

То в ответ он получит **ошибку**, сообщающую ему, что query-параметр `tool` не разрешен:

```json
{
    "detail": [
        {
            "type": "extra_forbidden",

			<c:if test="${!pager.existPrePage}">
				<li class="page-item disabled"><a
						class="page-link" href="#"><la:message
						key="labels.prev_page" /></a></li>
			</c:if>
			<c:forEach var="p" varStatus="s"
				items="${pager.pageNumberList}">
				<li
					<c:if test="${p == pager.currentPageNumber}">class="page-item active"</c:if>><la:link
						styleClass="page-link"
						href="list/${p}">${p}</la:link></li>
			</c:forEach>

				<div class="container">
					<la:link styleClass="navbar-brand d-inline-flex" href="/">
						<img src="${fe:url('/images/logo-head.png')}"
							alt="<la:message key="labels.header_brand_name" />"
							class="align-items-center" />
					</la:link>
					<button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbar" aria-controls="navbar"
						aria-expanded="false" aria-label="Toggle navigation">