import makeWASocket from 'baileys';
export declare class BaileysConnection {
    private static globalSock;
    private static keepAliveInterval;
    private static readonly AUTH_FOLDER_PATH;
    private static qrCode;
    private static qrCodeImageBase64;
    static getQRCodeImage(): string | null;
    static cleanupAuthFolder(): Promise<void>;
    private static startKeepAlive;
    private static initializeBaileysSocket;
    static getQRCode(): string | null;
    static getSock(): Promise<ReturnType<typeof makeWASocket>>;
}