anchor.diff:     */
     Future<Reply> filterDelete(String eventHeader, String valueToFilter,
             {int timeoutSeconds: 10}) =>
  -      this._subscribeAndSendCommand('filter delete $eventHeader $valueToFilter',
  +      _subscribeAndSendCommand('filter delete $eventHeader $valueToFilter',
             new Duration(seconds: timeoutSeconds));
   
     /**
      * Send an event into the event system (multi line input for headers)
      */
     Future<Reply> sendevent(String eventName, {int timeoutSeconds: 10}) =>
  -      this._subscribeAndSendCommand(
  +      _subscribeAndSendCommand(
             'sendevent $eventName', new Duration(seconds: timeoutSeconds));
   
     /**
  
positive.code:    */
    Future<Reply> filter(String eventHeader, String valueToFilter,
            {int timeoutSeconds: 10}) =>
        this._subscribeAndSendCommand('filter $eventHeader $valueToFilter',
            new Duration(seconds: timeoutSeconds));
  
    /**
  
negative.code:    * to the channel has been received by the socket client.
     */
    Future<Reply> linger({int timeoutSeconds: 10}) =>
        _subscribeAndSendCommand('linger', new Duration(seconds: timeoutSeconds));
  
    /**
     * Disable socket lingering. See linger above.
     */
    Future<Reply> nolinger({int timeoutSeconds: 10}) => _subscribeAndSendCommand(
        'nolinger', new Duration(seconds: timeoutSeconds));
  
    /**
     * Subscribe the socket to [events], which will be pumped into the
  