How to use the @s-ui/bundler/webpack.config.prod.optimization function in @s-ui/bundler

context: path.resolve(process.cwd(), 'pages', page),
    resolve: {
      ...prodConfig.resolve,
      alias: globalConfig.alias
    },
    entry,
    output: {
      ...prodConfig.output,
      path: path.resolve(process.cwd(), 'public', page),
      publicPath: remoteCdn
        ? `${remoteCdn}/${page}/`
        : prodConfig.output.publicPath,
      jsonpFunction: `webpackJsonp-${page}`
    },
    optimization: {
      ...prodConfig.optimization,
      minimizer: [
        uglifyJsPlugin,
        new OptimizeCSSAssetsPlugin({
          cssProcessorOptions: {
            zindex: false
          }
        })
      ]
    },
    plugins: pipe(
      removePlugin('HtmlWebpackPlugin'),
      removePlugin('ScriptExtHtmlWebpackPlugin'),
      removePlugin('PreloadWebpackPlugin')
    )(prodConfig.plugins)
  })
}