code: function sendEvent(eventName, sendRecursiveArguments, isUnhandledPass) {
    sendRecursiveArguments.unshift(eventName, this.get('currentState'), isUnhandledPass);
    return sendRecursively.apply(this, sendRecursiveArguments);
  }
docs: Send an event to the currentState.
  
  @method sendEvent
  @param eventName
  @param sendRecursiveArguments
  @param isUnhandledPass