import { BackupRecord } from '../common/types.js';
export declare class BackupManager {
    private static instance;
    private HASH_ALGO;
    private directoriesBuffer;
    private filesBuffer;
    private constructor();
    static getInstance(): BackupManager;
    clearBuffers(): void;
    private _dirDifference;
    private _fileDifference;
    private _generateBackupTreeFromRoot;
    private _getTotalByteLengthOfBackup;
    private _getFileData;
    private _getFileSizeAndHash;
    private _getDirectoryData;
    private _copySelectFilesAsync;
    private _createDirectoryStructure;
    diffBackup(fullId: string, source: string, name: string, destination?: string, useDate?: boolean): Promise<[BackupRecord, Error]>;
    fullBackup(source: string, name: string, destination?: string, useDate?: boolean): Promise<[BackupRecord, Error]>;
}