How to use the @angular/cli/plugins/webpack.NamedLazyChunksWebpackPlugin function in @angular/cli

ignore: ['.gitkeep'],
        debug: 'warning'
      }
    )
  );

  plugins.push(new ProgressPlugin());

  plugins.push(
    new CircularDependencyPlugin({
      exclude: /(\\|\/)node_modules(\\|\/)/,
      failOnError: false
    })
  );

  plugins.push(new NamedLazyChunksWebpackPlugin());

  plugins.push(
    new HtmlWebpackPlugin({
      template: './src/index.html',
      filename: './index.html',
      hash: false,
      inject: true,
      compile: true,
      favicon: false,
      minify: false,
      cache: true,
      showErrors: true,
      chunks: 'all',
      excludeChunks: [],
      title: 'Webpack App',
      xhtml: true,

}
  ], {
    "ignore": [
      ".gitkeep"
    ],
    "debug": "warning"
  }));

  plugins.push(new ProgressPlugin());

  plugins.push(new CircularDependencyPlugin({
    "exclude": /(\\|\/)node_modules(\\|\/)/,
    "failOnError": false
  }));

  plugins.push(new NamedLazyChunksWebpackPlugin());

  plugins.push(new HtmlWebpackPlugin({
    "template": "./src/index.html",
    "filename": "./index.html",
    "hash": false,
    "inject": true,
    "compile": true,
    "favicon": false,
    "minify": false,
    "cache": true,
    "showErrors": true,
    "chunks": "all",
    "excludeChunks": [],
    "title": "Webpack App",
    "xhtml": true,
    "chunksSortMode": function sort(left, right) {

}
  ], {
    "ignore": [
      ".gitkeep"
    ],
    "debug": "warning"
  }));

  plugins.push(new ProgressPlugin());

  plugins.push(new CircularDependencyPlugin({
    "exclude": /(\\|\/)node_modules(\\|\/)/,
    "failOnError": false
  }));

  plugins.push(new NamedLazyChunksWebpackPlugin());

  plugins.push(new HtmlWebpackPlugin({
    "template": "./src/index.html",
    "filename": "./index.html",
    "hash": false,
    "inject": true,
    "compile": true,
    "favicon": false,
    "minify": false,
    "cache": true,
    "showErrors": true,
    "chunks": "all",
    "excludeChunks": [],
    "title": "Webpack App",
    "xhtml": true,
    "chunksSortMode": function sort(left, right) {