code: def check_link_tag(self):
          
          node = self.article.raw_doc
          meta = self.parser.getElementsByTag(node, tag='link', attr='rel', value='image_src')
          for item in meta:
              src = self.parser.getAttribute(item, attr='href')
              if src:
                  return self.get_image(src, extraction_type='linktag')
          return None
docs: \
          checks to see if we were able to
          find open link_src on this page