{
  "presets": ["es2015"],
  "plugins": ["babel-plugin-add-module-exports"],
  "env": {
    "test": {
      "plugins": [
        [
          "istanbul",
          {
            "exclude": ["**/*.spec.js"]
          }
        ]
      ]
    }
  },
  "sourceMaps": true,
  "retainLines": true
}