text: import _class_call_check from "@swc/helpers/src/_class_call_check.mjs";
  import _inherits from "@swc/helpers/src/_inherits.mjs";
  import _create_super from "@swc/helpers/src/_create_super.mjs";
  // @noTypesAndSymbols: true
  // @strictNullChecks: true
  // @target: esnext
  // @useDefineForClassFields: true
  var Base = function Base() {
      "use strict";
      _class_call_check(this, Base);
      this.a = 1;
  };
  var Derived = /*#__PURE__*/ function(Base) {
      "use strict";
      _inherits(Derived, Base);
      var _super = _create_super(Derived);
      function Derived(a) {
          _class_call_check(this, Derived);
          var _this;
          _this = _super.call(this);
          _this.a = a;
          _this.b = _this.a /*undefined*/ ;
          return _this;
      }
      return Derived;
  }(Base);
  