from __future__ import annotations

import dataclasses
import tomllib

@dataclasses.dataclass(eq=False, frozen=True, slots=True)
class Config:
    username: str
    fio_api_key: str

    def __init__(self) -> None:
        with open('config.toml', 'rb') as f:
            config = tomllib.load(f)
        for k, v in config.items():
            object.__setattr__(self, k, v)

config = Config()