docs: def fetch_list_members(list_url):
      """ Get all members of the list specified by the given url. E.g., https://twitter.com/lore77/lists/libri-cultura-education """
      match = re.match(r'.+twitter\.com\/(.+)\/lists\/(.+)', list_url)
      if not match:
          print('cannot parse list url %s' % list_url)
          return []
      screen_name, slug = match.groups()
      print('collecting list %s/%s' % (screen_name, slug))
      return twutil.collect.list_members(slug, screen_name)