from dataclasses import dataclass, field
from datetime import datetime
from typing import Optional


@dataclass
class LinkRecord:
    id: str
    user_id: str
    title: str
    url: str
    comment: str
    created_at: datetime
    timestamp: Optional[datetime] = None
    is_public: bool = True
    updated_at: Optional[datetime] = None
    deleted_at: Optional[datetime] = None