{
  // babelHelpers: 'bundled',  // doesn't work, even though complies to documentation. Moved to rollup configuration instead in `tasks/scripts.js
  // see https://github.com/storybookjs/storybook/issues/1320#issuecomment-310777396
  presets: [
    '@babel/preset-react',
    '@babel/preset-env'
  ],
  exclude: [ 'node_modules/**', '**/*.json' ],
  plugins: [
    ['@babel/plugin-transform-react-jsx', { pragma: 'h' }],
    '@babel/plugin-proposal-object-rest-spread'
  ]
}