/**
 * Telegram getUpdates polling loop.
 *
 * One MCP instance is elected as the poller via the file lock. It calls
 * getUpdates and distributes incoming messages to per-thread JSONL files
 * through the broker. All other instances are consumers only.
 */
import type { TelegramClient } from "../telegram.js";
/**
 * Start the shared dispatcher.
 * - Ensures directories exist.
 * - Attempts to acquire the poller lock.
 * - If acquired, starts a polling loop that writes to per-thread files.
 * - If not acquired, this instance is a consumer only (reads from thread files).
 *
 * Returns: whether this instance became the poller.
 */
export declare function startDispatcher(telegram: TelegramClient, chatId: string): Promise<boolean>;
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