/// <reference types="node" />
import { IQextData } from "../../qext-file-builder/api";
export declare class ExtensionService {
    static get instance(): ExtensionService;
    private static oInstance;
    private webpackService;
    private qrsService;
    constructor();
    getQextConfiguration(): IQextData;
    extensionExists(name: string): Promise<boolean>;
    importExtension(name: string, file: Buffer): Promise<void>;
    updateExtension(name: string, file: Buffer): Promise<void>;
    private readPackageJSON;
}