from dataclasses import dataclass
from datetime import datetime
from typing import Optional


@dataclass
class UserRecord:
    id: str
    username: str
    password_hash: str
    email: Optional[str] = None
    avatar_url: Optional[str] = None
    bio: Optional[str] = None
    is_admin: bool = False
    created_at: Optional[datetime] = None
    updated_at: Optional[datetime] = None