code: @Override
  	public String editSlideshow(String username, String password, String slideshowId, String slideshowTitle,
  								String slideshowDescription, Collection<String> slideshowTags, PrivacySetting privacySetting) {
  		if (privacySetting == null) {
  			return editSlideshow(username, password, slideshowId, slideshowTitle, slideshowDescription, slideshowTags,
  								 null, null, null, null);
  		}
  		return editSlideshow(username, password, slideshowId, slideshowTitle, slideshowDescription, slideshowTags,
  							 privacySetting.getMakeSlideshowPrivate(), privacySetting.getGenerateSecretUrl(),
  							 privacySetting.getAllowEmbeds(), privacySetting.getShareWithContacts());
  
  	}
docs: required: username, password, slideshowId