{
  "presets":[
      "es2015", "react"
  ],
  "env": {
    "development": {
      "presets": ["es2015", "react", "stage-0"],
      "plugins": ["transform-runtime"],
      "presets": ["react-hmre"]
    }
  },
  "env": {
    "build": {
      "presets": ["es2015", "react", "stage-0"]
    }
  }
}