import type { AuthenticationCreds, WAMessage } from '@whiskeysockets/baileys';
import { proto } from '@whiskeysockets/baileys';
import { MessageContentType } from '../../../types/index.js';
/**
 * Determine if given jid is a group
 *
 * @param jid Jid
 * @returns boolean
 */
export declare const isGroup: (jid: string) => boolean;
export declare const generateMsgId: (msg: WAMessage) => string;
export declare const getMessageType: (message: proto.IWebMessageInfo) => MessageContentType;
/**
 * Utility to normalize and group messages by JID.
 */
export declare function groupAndNormalizeMessages(messages: WAMessage[]): Record<string, WAMessage[]>;
export declare function normalizeAuthCredsFromMongo(doc: unknown): AuthenticationCreds;
/**
 * Recursively converts BSON binary values to Buffer.
 */
export declare function normalizeBuffers<T>(obj: T): T;
export * from './jid.js';
export * from './message-merge.js';