code: def create_cms_plugin_page(apphook, apphook_namespace, placeholder_slot=None):
      
      creator = CmsPluginPageCreator(
          apphook=apphook,
          apphook_namespace=apphook_namespace,
      )
      creator.placeholder_slot = placeholder_slot
      plugin_page = creator.create()
      return plugin_page
docs: Create cms plugin page in all existing languages.
      Add a link to the index page.
  
      :param apphook: e.g...........: 'FooBarApp'
      :param apphook_namespace: e.g.: 'foobar'
      :return: