var _client = babelHelpers.classPrivateFieldLooseKey("client"); var Foo = function Foo(props) { "use strict"; babelHelpers.classCallCheck(this, Foo); ({ client: babelHelpers.classPrivateFieldLooseBase(Foo, _client)[_client] } = props); }; Object.defineProperty(Foo, _client, { writable: true, value: void 0 });