import { Configuration, FileCacheOptions } from 'webpack';
import Service from '../core/service';
declare class WebpackConfig {
    private extensions;
    private opts;
    private env;
    constructor(service: Service);
    merge(...opts: Configuration[]): Configuration;
    get cache(): FileCacheOptions;
    get projectVersion(): string;
    get base(): Configuration;
    get isProd(): boolean;
}
export default WebpackConfig;