code: def follow_link(self, link, **kwargs):
          
          try:
              href = link['href']
          except KeyError:
              raise exceptions.RoboError('Link element must have "href" '
                                         'attribute')
          self.open(self._build_url(href), **kwargs)
docs: Click a link.
  
          :param Tag link: Link to click
          :param kwargs: Keyword arguments to `Session::send`