module.exports = {
  useBabelInstrumenter: true
}

module.exports = {
  useBabelInstrumenter: true,
  babelPlugins: [
    'babel-plugin-transform-async-to-generator',
    'babel-plugin-transform-decorators-legacy',
    'babel-plugin-transform-object-rest-spread'
  ]
}

Add babel plugins to coverage config