code: async def asynchronous(urls=None, re_filter=None):
      
      class _URLBase(str):
          """ Convenient access to hostname (ip) portion of the URL """
          @property
          def hostname(self):
              return urlsplit(self).hostname
  
      http_devices = {}
      qualified_devices = []
      connection = aiohttp.TCPConnector(limit=0)
      async with aiohttp.ClientSession(connector=connection, 
          conn_timeout=5, raise_for_status=True) as session:
          
          futures = [fetch_page(session, url) for url in urls]
  
          for future in asyncio.as_completed(futures):
              response = await future
              if 'found' in response[1]:
                  http_devices[response[0]] = response[2]
                  logger.debug('Processed %s', response[0])
                  if re_filter.search(response[2]):
                      qualified_devices.append(_URLBase(response[0]))
  
      # print('The following responded to HTTP:')
      # for x in http_devices.keys():
      #     print(x)
  
      return qualified_devices
docs: Asynchronous request manager for session.  Returns list of responses that
      match the filter.
  
      `urls` - tuple of URLs to request  
      `re_filter` - a compiled regular expression
      [object](https://docs.python.org/3/library/re.html#re-objects)