docs: def create(self):
          """
          Create the plugin page in all languages and fill dummy content.
          """
          plugin = CMSPlugin.objects.filter(plugin_type=self.apphook)
          if plugin.exists():
              log.debug('Plugin page for "%s" plugin already exist, ok.',
                        self.apphook)
              raise plugin
  
          page, created = super(CmsPluginPageCreator, self).create()
  
          if created:
              # Add a plugin with content in all languages to the created page.
              # But only on new created page
              for placeholder_slot in self.placeholder_slots:
                  self.fill_content(page, placeholder_slot)
  
          return page, created