code: async def get_real_ext_ip(self):
          
          while self._ip_hosts:
              try:
                  timeout = aiohttp.ClientTimeout(total=self._timeout)
                  async with aiohttp.ClientSession(
                      timeout=timeout, loop=self._loop
                  ) as session, session.get(self._pop_random_ip_host()) as resp:
                      ip = await resp.text()
              except asyncio.TimeoutError:
                  pass
              else:
                  ip = ip.strip()
                  if self.host_is_ip(ip):
                      log.debug('Real external IP: %s', ip)
                      break
          else:
              raise RuntimeError('Could not get the external IP')
          return ip
docs: Return real external IP address.