from __future__ import annotations
from typing import Callable


class Prompt:
    def __init__(self, message: str, kind: str,
                 on_submit: Callable[[object], None] = lambda _: None) -> None:
        self.message = message
        self.kind = kind
        self.on_submit = on_submit
        self.buffer = ""

    @classmethod
    def error(cls, message: str) -> Prompt:
        return cls(message, "error")