{
  "presets": [
    ["es2015", {
      "loose": true,
      "modules": false
    }],
    "stage-0"
  ],
  "plugins": [
    "transform-flow-strip-types",
    "external-helpers"
  ],
  "env": {
    "watch": {
      "presets": [
        ["es2015", {
          "loose": true
        }],
        "stage-0"
      ]
    },
    "test": {
      "plugins": ["istanbul"]
    }
  }
}