{
  "env": {
    "development": {
      "presets": [
        "stage-1",
        "react",
        [
          "latest", {
            "es2015": {
              "modules": false
            }
          }
        ],
      ],
      "plugins": [
        "transform-class-properties",
        "transform-object-rest-spread",
        ["transform-regenerator", {
          "async": false
        }],
        ["transform-runtime", {
          "helpers": false,
          "polyfill": false
        }],
        "external-helpers"
      ]
    },
    "production": {
      "presets": [
        "stage-1",
        "react",
        [
          "latest", {
            "es2015": {
              "modules": false
            }
          }
        ],
      ],
      "plugins": [
        "transform-class-properties",
        "transform-object-rest-spread",
        ["transform-regenerator", {
          "async": false
        }],
        ["transform-runtime", {
          "helpers": false,
          "polyfill": false
        }],
        "external-helpers"
      ]
    },
    "test": {
      "presets": [
        "env",
        "react",
        "stage-2"
      ],
      "plugins": [
        "transform-class-properties",
        "transform-object-rest-spread",
        ["transform-regenerator", {
          "async": false
        }],
        ["transform-runtime", {
          "helpers": false,
          "polyfill": false
        }],
      ]
    }
  },
}