Creates new tags or updates existing tags for an Auto Scaling group.

        :type tags: List of :class:`boto.ec2.autoscale.tag.Tag`
        :param tags: The new or updated tags.

def create_or_update_tags(self, tags):
        """
        Creates new tags or updates existing tags for an Auto Scaling group.

        :type tags: List of :class:`boto.ec2.autoscale.tag.Tag`
        :param tags: The new or updated tags.
        """
        params = {}
        for i, tag in enumerate(tags):
            tag.build_params(params, i+1)
        return self.get_status('CreateOrUpdateTags', params, verb='POST')