/**
 * Port of upstream Baileys' `Utils/history.ts:processHistoryMessage`.
 *
 * Walks a decoded `proto.IHistorySync` and produces the
 * `messaging-history.set` payload (chats, contacts, messages, lidPnMappings).
 * The bridge already decoded the proto for us — this module only handles
 * the structured walk + normalization that upstream consumers expect.
 *
 * 1:1 with upstream (`Baileys/src/Utils/history.ts:47-139`); changes here
 * are limited to swapping upstream imports for baileyrs equivalents and
 * keeping the WAProto namespace as our re-export.
 */
import type { proto } from 'whatsapp-rust-bridge/proto-types';
import type { Chat, Contact, LIDMapping, WAMessage } from '../Types/index.js';
export interface ProcessedHistorySync {
    chats: Chat[];
    contacts: Contact[];
    messages: WAMessage[];
    lidPnMappings: LIDMapping[];
    syncType?: number;
    progress?: number;
}
/**
 * Walk a decoded HistorySync proto and extract the upstream
 * `messaging-history.set` payload. Mirrors upstream's behavior exactly,
 * including the side-effect of removing `chat.messages` (kept only as a
 * 1-element preview after the walk).
 */
export declare const processHistoryMessage: (item: proto.IHistorySync) => ProcessedHistorySync;
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