docs: public void checkVersion(ZWaveCommandClass commandClass) {
  		ZWaveVersionCommandClass versionCommandClass = (ZWaveVersionCommandClass)this.getNode().getCommandClass(CommandClass.VERSION);
  		
  		if (versionCommandClass == null) {
  			logger.error(String.format("Version command class not supported on node %d," +
  					"reverting to version 1 for command class %s (0x%02x)", 
  					this.getNode().getNodeId(), 
  					commandClass.getCommandClass().getLabel(), 
  					commandClass.getCommandClass().getKey()));
  			return;
  		}
  		
  		this.getController().sendData(versionCommandClass.getCommandClassVersionMessage(commandClass.getCommandClass()));
  	}