from fastapi import Body, Cookie, FastAPI, Header, Path, Query
from fastapi._compat import PYDANTIC_V2
from fastapi.testclient import TestClient
from pydantic import BaseModel, ConfigDict


def create_app():
    app = FastAPI()

    class Item(BaseModel):
        data: str

        if PYDANTIC_V2:
            model_config = ConfigDict(
                json_schema_extra={"example": {"data": "Data in schema_extra"}}