from pydantic import BaseModel from typing import Optional from datetime import datetime class Category(BaseModel): id: int name: str description: Optional[str] = None image_path: Optional[str] = None class Config: from_attributes = True class CategoryCreate(BaseModel): name: str description: Optional[str] = None parent_id: Optional[int] = None image_path: Optional[str] = None page_number: int = 1 created_at: datetime = None class CategoryUpdate(BaseModel): name: Optional[str] = None description: Optional[str] = None parent_id: Optional[int] = None image_path: Optional[str] = None page_number: Optional[int] = None created_at: datetime = None