import { FileInput } from "../../parse/File";
import { Parser } from "../../parse/Parser";
export declare class WhatsAppParser extends Parser {
    private channelIndex;
    private messageIndex;
    /** Parse a WhatsApp export in txt or zip format */
    parse(file: FileInput): AsyncGenerator<never, void, unknown>;
    /**
     * Tries to extract a .txt file from a .zip file buffer.
     * It searches the default "_chat.txt" file. Otherwise, it tries to match some text files with a pattern.
     *
     * @throws if it can't find a .txt file
     * @returns the .txt file buffer
     */
    extractTxtFromZip(fileBuffer: ArrayBuffer): ArrayBuffer;
}