hunk.code_window:   devServerConfig.stats = false;
     return createWebpack({ ...config, watch: false }).pipe(
       switchMap(webpackCompiler => new Observable<DevServerBuildOutput>(obs => {
         const server = createWebpackDevServer(webpackCompiler, devServerConfig);
         let result: DevServerBuildOutput;
         webpackCompiler.hooks.done.tap('build-webpack', (stats) => {
           // Log stats.
           log(stats, config);
  
hunk.labels: keep keep keep keep keep replace keep keep keep keep
hunk.after_edit:       let result: Partial<DevServerBuildOutput>;
  
hunk.file_path: packages/angular_devkit/build_webpack/src/webpack-dev-server/index.ts
hunk.type: replace
file: const ngToolsWebpack = require('@ngtools/webpack');
  const path = require('path');
  
  module.exports = {
    resolve: {
      extensions: ['.ts', '.js']
    },
    entry: './app/main.ts',
    output: {
      path: path.resolve('./dist'),
      publicPath: 'dist/',
      filename: 'app.main.js'
    },
    plugins: [
      new ngToolsWebpack.AngularCompilerPlugin({
        tsConfigPath: './tsconfig.json'
      })
    ],
    module: {
      rules: [
        { test: /\.scss$/, loaders: ['raw-loader', 'sass-loader'] },
        { test: /\.html$/, loader: 'raw-loader' },
        { test: /\.ts$/, loader: '@ngtools/webpack' }
      ]
    },
    devServer: {
      historyApiFallback: true
    }
  };
  