code: @Override
  	public ParallelTransformation reversed(boolean reversed)
  	{
  		if (!reversed)
  			return this;
  
  		for (Transformation<?, ?> transformation : listTransformations)
  			transformation.reversed(true);
  
  		return this;
  	}
docs: Sets this trasformation in reverse.
  
  @param reversed the reversed
  @return the parallel transformation