code: function build() {
    console.log('Creating an optimized production build...\n');
  
    webpack(config)
      .run((err, stats) => {
        if (err) {
          printErrors('Failed to compile.', [err]);
          process.exit(1);
        }
  
        if (stats.compilation.errors.length) {
          printErrors('Failed to compile.', stats.compilation.errors);
          process.exit(1);
        }
  
        if (process.env.CI && stats.compilation.warnings.length) {
          printErrors('Failed to compile.', stats.compilation.warnings);
          process.exit(1);
        }
  
        logSuccess('Compiled successfully.\n');
  
        console.log('Bundle size details:\n');
        printFileSizes(stats);
  
        console.log(`\nThe ${chalk.green('build')} folder is ready to be deployed.\n`);
      });
  }
docs: Create a production build