code: function unload(inst, list, argv, event, fin) {
      inst.counter++;
      if (inst.options.debug) Console.printDebug(inst, list);
      if (_isQuote(list)) {
          return quote(inst, list, argv, event, fin);
      }
      if (_isFunc(list)) {
          if (_callReady(list)) {
              return invoke(inst, list, argv, event, fin);
          }
      }
      return sequence(inst, list, argv, event, fin);
  }
docs: Delegate to a subprocessor based on the list type: quote, list, seq