text: function _classCallCheck(instance, Constructor) {
      if (!(instance instanceof Constructor)) throw new TypeError("Cannot call a class as a function");
  }
  var Generics, B = function() {
      "use strict";
      _classCallCheck(this, B);
  }, B2 = function() {
      "use strict";
      _classCallCheck(this, B2);
  };
  !function(Generics) {
      var B1 = function() {
          "use strict";
          _classCallCheck(this, B1);
      }, B21 = function() {
          "use strict";
          _classCallCheck(this, B21);
      }, B3 = function() {
          "use strict";
          _classCallCheck(this, B3);
      }, B4 = function() {
          "use strict";
          _classCallCheck(this, B4);
      }, B5 = function() {
          "use strict";
          _classCallCheck(this, B5);
      };
  }(Generics || (Generics = {
  }));
  