from __future__ import annotations

from dataclasses import dataclass


@dataclass(slots=True)
class APIError(Exception):
    message: str
    status_code: int = 400
    error_type: str = "invalid_request_error"
    param: str | None = None
    code: str | None = None

    def body(self) -> dict:
        return {"error": {"message": self.message, "type": self.error_type,
                          "param": self.param, "code": self.code}}