{
  "presets": [
    ["@babel/preset-env", {
      "targets": {
        "browsers": [
          "> 1%",
          "last 2 versions",
          "not ie <= 8"
        ]
      },
    }]
  ],
  "plugins": [
    ["@babel/plugin-proposal-object-rest-spread", { "loose": true, "useBuiltIns": true }]
  ],
  "env": {
    "test": {
      "plugins": ["@babel/plugin-transform-runtime"]
    }
  }
}