var B = function B() {
  "use strict";
};

var A = /*#__PURE__*/function (_B) {
  "use strict";

  babelHelpers.inherits(A, _B);

  var _super = babelHelpers.createSuper(A);

  function A(track) {
    var _this;

    if (track !== undefined) _this = _super.call(this, track);else _this = _super.call(this);
    return babelHelpers.possibleConstructorReturn(_this);
  }

  return A;
}(B);