Run a single connection iteration.
        This will return `True` if the connection is still open
        and ready to be used for further work, or `False` if it needs
        to be shut down.

        :rtype: bool
        :raises: TimeoutError or ~uamqp.errors.ClientTimeout if CBS authentication timeout reached.

def do_work(self):
        """Run a single connection iteration.
        This will return `True` if the connection is still open
        and ready to be used for further work, or `False` if it needs
        to be shut down.

        :rtype: bool
        :raises: TimeoutError or ~uamqp.errors.ClientTimeout if CBS authentication timeout reached.
        """
        if self._shutdown:
            return False
        if not self.client_ready():
            return True
        return self._client_run()