code: def find_xml(cls, url, features):
          
          req = cls._get_content(url)
          if req.status_code in range(200, 300):
              return BeautifulSoup(req.text, features)
          else:
              raise MlbAmHttpNotFound('HTTP Error url: {url} status: {status}'.format(url=url, status=req.status_code))
docs: find xml
          :param url: contents url
          :param features: markup provider
          :param headers: http header
          :return: BeautifulSoup object