code: function(event/*, arg1...*/) {
        var events = this._events[event];
  
        if (events != null) {
          var args = slice(arguments, 1);
          each(events, function(event) {
            event[2].apply(event[1], args);
          });
        }
        return this;
      }
docs: Trigger an event on this APICall object. This will call all event handlers in order.
  All parameters following event will be sent to the event handlers.
  @param {string|number} event The event to trigger.
  @return {APICall} The current APICall object