from pydantic import BaseModel from datetime import datetime class ParamOut(BaseModel): param_id: int param_key: str param_value: str param_type: str status: int is_system: bool description: str | None = None created_at: datetime class Config: from_attributes = True class ParamCreate(BaseModel): param_key: str param_value: str param_type: str = "string" status: int = 1 is_system: bool = False description: str | None = None class ParamUpdate(BaseModel): param_value: str | None = None param_type: str | None = None status: int | None = None is_system: bool | None = None description: str | None = None