/**
 * Map a Telegram update → the normalized {@link ShuttleMessage} the base runs.
 * Pure and testable. Returns null for anything we don't answer (no text, etc.).
 */
import type { ShuttleMessage } from '../adapter.js';
import type { TgMessage, TgUpdate } from './api.js';
/** True if the bot was @mentioned (or replied-to) — gates group responses. */
export declare function isBotMentioned(m: TgMessage, text: string, botUsername?: string): boolean;
export declare function toShuttleMessage(update: TgUpdate, botUsername?: string): ShuttleMessage | null;
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