code: def link(self, link, title, text):
          
          link = escape_link(link)
          if not title:
              return '<a href="%s">%s</a>' % (link, text)
          title = escape(title, quote=True)
          return '<a href="%s" title="%s">%s</a>' % (link, title, text)
docs: Rendering a given link with content and title.
  
          :param link: href link for ``<a>`` tag.
          :param title: title content for `title` attribute.
          :param text: text content for description.