import webpack from 'webpack';
declare class VirtualModulesPlugin {
    private watcher;
    private compiler;
    static bootstrap(compilation: any): VirtualModulesPlugin;
    addFile: (filePath: string, contents: string) => void;
    writeModule(filePath: string, contents: string): void;
    static augmentFileSystem(compiler: webpack.Compiler): void;
    apply(compiler: webpack.Compiler): void;
}
export default VirtualModulesPlugin;