/**
 * Telegram Adapter — Uses grammy for bot communication.
 *
 * Auth: TELEGRAM_BOT_TOKEN from @BotFather
 * Mode: Long-polling (no webhook, no public URL needed)
 */
import { MessageBuffer } from '../buffer.js';
import type { ChannelAdapter, ChannelInfo, ChannelMessage, ChannelState, HistoryOptions, Platform, SendOptions, SendResult } from '../adapter.js';
export declare class TelegramAdapter implements ChannelAdapter {
    readonly platform: Platform;
    state: ChannelState;
    readonly buffer: MessageBuffer;
    private bot;
    private botId;
    private knownChats;
    private token;
    constructor(token: string, bufferSize?: number);
    connect(): Promise<void>;
    disconnect(): Promise<void>;
    send(options: SendOptions): Promise<SendResult>;
    getHistory(options: HistoryOptions): Promise<ChannelMessage[]>;
    listChannels(): Promise<ChannelInfo[]>;
    isHealthy(): Promise<boolean>;
}
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