code: def link(self, link, title, text):
          
          if title:
              raise NotImplementedError('sorry')
          return '\ `{text} <{target}>`_\ '.format(target=link, text=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.