import type { ActionControllerLike, ActionControllerParams, SendChatActionParams, TelegramLike } from '@puregram/api';
type ChatActionSender = Pick<TelegramLike, 'api'>;
/**
 * re-sends `sendChatAction(action)` on an interval until `stop()` is called —
 * telegram clears the action after ~5 seconds, so a long task needs it refreshed
 */
export declare class ChatActionController implements ActionControllerLike {
    /** the chat action being sent — reassign to switch it mid-flight */
    action: SendChatActionParams['action'];
    /** interval between calls, in milliseconds */
    interval: number;
    /** initial delay before the first call, in milliseconds */
    wait: number;
    /** timeout in milliseconds; `0` disables it */
    timeout: number;
    started: boolean;
    private abortController?;
    private readonly tg;
    private readonly chatId;
    private readonly params;
    constructor(tg: ChatActionSender, chatId: number | string, action: SendChatActionParams['action'], options?: ActionControllerParams);
    /** starts the `sendChatAction(action)` loop until `stop()` is called */
    start(): void;
    /** stops the loop */
    stop(): void;
    private loop;
}
export {};
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