docs: function sendClustered() {
      var handled = false, i, n, cur;
  
      for (i = 0, n = this.substates.length; i < n; i++) {
        if (this.substates[i].__isCurrent__) { cur = this.substates[i]; break; }
      }
  
      if (cur) { handled = !!send.apply(cur, slice.call(arguments)); }
  
      return handled;
    }