babel/packages/babel-plugin-proposal-private-methods/test/fixtures/private-static-method/options.json

{
  "plugins": [
    [
      "external-helpers",
      {
        "helperVersion": "7.1000.0"
      }
    ],
    "proposal-private-methods",
    "proposal-class-properties",
    "transform-block-scoping",
    "syntax-class-properties"
  ]
}