class Base { constructor(obj) { return obj; } } var _foo = /*#__PURE__*/new WeakSet(); class Derived extends Base { constructor(...args) { super(...args); babelHelpers.classPrivateMethodInitSpec(this, _foo); } static get(obj) { return babelHelpers.classPrivateMethodGet(obj, _foo, _foo2).call(obj); } } function _foo2() { return 'bar'; }