code: def _get_url_datafiles(url_db_view, url_db_content,
                         mrio_regex, access_cookie=None):
      
      # Use post here - NB: get could be necessary for some other pages
      # but currently works for wiod and eora
      returnvalue = namedtuple('url_content',
                               ['raw_text', 'data_urls'])
      url_text = requests.post(url_db_view, cookies=access_cookie).text
      data_urls = [url_db_content + ff
                   for ff in re.findall(mrio_regex, url_text)]
      return returnvalue(raw_text=url_text, data_urls=data_urls)
docs: Urls of mrio files by parsing url content for mrio_regex
  
      Parameters
      ----------
  
      url_db_view: url str
          Url which shows the list of mrios in the db
  
      url_db_content: url str
          Url which needs to be appended before the url parsed from the
          url_db_view to get a valid download link
  
      mrio_regex: regex str
          Regex to parse the mrio datafile from url_db_view
  
      access_cookie: dict, optional
          If needed, cookie to access the database
  
      Returns
      -------
      Named tuple:
      .raw_text: content of url_db_view for later use
      .data_urls: list of url