docs: public static Object[] padArguments(Object[] args, int count) {
          if (count < args.length)
              return args;
  
          int i;
          Object[] result = new Object[count];
          for (i = 0; i < args.length; i++) {
              result[i] = args[i];
          }
  
          for (; i < count; i++) {
              result[i] = Undefined.instance;
          }
  
          return result;
      }