code: def get_feeds_url(blog_page, root_page):
      
      if root_page == blog_page:
          return reverse('blog_page_feed')
      else:
          blog_path = strip_prefix_and_ending_slash(blog_page.specific.last_url_part)
          return reverse('blog_page_feed_slug', kwargs={'blog_path': blog_path})
docs: Get the feeds urls a blog page instance.
      It will use an url or another depending if blog_page is the root page.