public function writelnIfDebug($message)
	{
		if ($this->debug)
		{
			$this->debugMessages[] = new Message(Output::DEBUG, $message, null);
		}
	}
public function writelnIfDebug($message)
	{
		if ($this->debug)
		{
			$this->debugMessages[] = new Message(Output::DEBUG, $message, null);
		}
	}
public function writelnIfDebug ( $ message ) { if ( $ this -> debug ) { $ this -> debugMessages [ ] = new Message ( Output :: DEBUG , $ message , null ) ; } }
Write a message to the output, but only if Debug is enabled.

@param $message string|array $messages The message as an array of lines of a single string

@throws \InvalidArgumentException When unknown output type is given
Write a message to the output but only if Debug is enabled .