{
  "comments": false,
  "compact": true,
  "optional": [
    // Experimental features.
    // "minification.constantFolding",
    // "minification.deadCodeElimination",

    "es7.asyncFunctions",
    "es7.decorators",
    "es7.exportExtensions",
    "es7.functionBind",
    "runtime"
  ]
}