public static function getInstance(param1:Class, param2:uint) : *
      {
         var _loc3_:Class = _typesTypes[param2];
         if(!_loc3_)
         {
            throw new Error("Type with id " + param2 + " is unknown.");
         }
         var _loc4_:* = new _loc3_();
         if(!(_loc4_ is param1))
         {
            throw new Error("Type " + param2 + " is not a " + param1 + ".");
         }
         return _loc4_;
      }