babel/packages/babel-preset-env/test/fixtures/loose-class-features-precedence/properties-loose-preset-loose/options.json

{
  "validateLogs": true,
  "presets": [
    ["env", {
      "targets": { "node": 10 },
      "loose": true
    }]
  ],
  "plugins": [
    ["transform-class-properties", { "loose": true }]
  ]
}