docs: def Run(self):
      """The main run method of the client."""
      for thread in itervalues(self._threads):
        thread.start()
      logging.info(START_STRING)
  
      while True:
        dead_threads = [
            tn for (tn, t) in iteritems(self._threads) if not t.isAlive()
        ]
        if dead_threads:
          raise FatalError(
              "These threads are dead: %r. Shutting down..." % dead_threads)
        time.sleep(10)