{
  "presets": [
    [
      "env",
      {
        "targets": {
          "node": "7.10"
        },
        "useBuiltIns": true
      }
    ]
  ],
  "plugins": [
    "transform-flow-strip-types",
    ["transform-object-rest-spread", {
      "useBuiltIns": true
    }],
    "transform-class-properties"
  ]
}