import type { IFileSystem } from "../types";
export declare class ModuleCache {
    readonly path: string;
    private fs;
    private manifest;
    private saving;
    constructor(path: string, fs?: IFileSystem);
    load(): Promise<void>;
    save(): Promise<void>;
    getVersion(module: string): string | undefined;
    setVersion(module: string, version: string): void;
    hasVersion(module: string, version: string): boolean;
    getFolder(module: string, noClean?: boolean, noCreate?: boolean): Promise<string>;
    static getTemp(): Promise<string>;
    transfer(source: string, module: string, version: string): Promise<string>;
    private copyDir;
    private queueSave;
}