import type TelegramBot from 'node-telegram-bot-api';
export declare type Button = Record<string, string | undefined> | string;
export declare type ButtonsList = (Button | Button[])[];
export declare type ButtonId = `$btn:${number}`;
export declare type RawButton = {
    id: ButtonId;
    text: string;
    value: string;
};
interface RawButtons {
    structure: (ButtonId | ButtonId[])[];
    list: RawButton[];
}
export declare class Buttons {
    private source;
    private buttons;
    private hash;
    constructor(buttons: ButtonsList);
    updateKeyboard(): RawButtons;
    getInlineKeyboard(): TelegramBot.InlineKeyboardButton[][];
    get(btnId: ButtonId): RawButton | undefined;
    isChanged(): boolean;
    replace(buttons: ButtonsList): void;
    clear(): void;
}
export declare function makeRawButton(button: Button, id?: number): RawButton;
export {};