'Toggle subscription auto renew status.
:param subscription: Subscription to toggle the auto renew flag for.
:type subscription: :class:`.CloudSigmaSubscription`
:return: ``True`` on success, ``False`` otherwise.
:rtype: ``bool``'

def ex_toggle_subscription_auto_renew(self, subscription):

    path = ('/subscriptions/%s/action/' % subscription.id)
    response = self._perform_action(path=path, action='auto_renew', method='POST')
    return (response.status == httplib.OK)
