.babelrc

{
    "env": {
        "test": {
            "plugins": ["babel-plugin-istanbul"]
        }
    },
    "plugins": [
        "babel-plugin-transform-object-rest-spread",
        "babel-plugin-transform-es2015-spread",
        "babel-plugin-transform-es2015-function-name",
        "babel-plugin-transform-es2015-sticky-regex",
        "babel-plugin-transform-es2015-unicode-regex",
        "babel-plugin-transform-es2015-parameters",
        "babel-plugin-transform-es2015-destructuring",
        "babel-plugin-transform-es2015-modules-commonjs",
        "babel-plugin-transform-export-extensions",
        "babel-plugin-transform-async-to-generator"
    ]
}