class Item(BaseModel):
            name: str
            description: str | None = None

        app = FastAPI()
        router = APIRouter()

        @router.post("/items/")
        def create_item(item: Item):
            return {"message": "Item created"}

        app.include_router(router)
        ```
        """
        return self.api_route(
            path=path,

        class Item(BaseModel):
            name: str
            description: str | None = None

        app = FastAPI()

        @app.post("/items/")
        def create_item(item: Item):
            return {"message": "Item created"}
        ```
        """
        return self.router.post(
            path,
            response_model=response_model,