text: from asposeslides import Settings
  from com.aspose.slides import Presentation
  from com.aspose.slides import SaveFormat
  
  class AddSlides:
  
      def __init__(self):
          
          dataDir = Settings.dataDir + 'WorkingWithSlidesInPresentation/AddSlides/'
          
         # Instantiate Presentation class that represents the presentation file
          pres =Presentation()
  
          # Instantiate SlideCollection calss
          slides = pres.getSlides()
  
          i = 0
          while i < pres.getLayoutSlides().size():
  
              # Add an empty slide to the Slides collection
              slides.addEmptySlide(pres.getLayoutSlides().get_Item(i))
              i+=1
  
          
  
          #Do some work on the newly added slide
  
          # Saving the presentation
          save_format = SaveFormat
          pres.save(dataDir + "EmptySlide.pptx", save_format.Pptx)
  
          print "Document has been created, please check the output file."
  
  if __name__ == '__main__':        
      AddSlides()