export declare function createDirectoryIfNotExist(directory: string): Promise<boolean>;
interface DeleteOldFileOptions {
    keepMetaFiles?: boolean;
    /**Number of Seconds */
    keepAliveTime?: number;
}
interface DeleteOldFilesFn {
    dirPath?: string;
    options?: DeleteOldFileOptions;
}
export declare const deleteOldFiles: ({ dirPath, options }: DeleteOldFilesFn) => void;
export {};