def follow_info(self, index=None, params=None):
        """
        `<https://www.elastic.co/guide/en/elasticsearch/reference/current/ccr-get-follow-info.html>`_

        :arg index: A comma-separated list of index patterns; use `_all` to
            perform the operation on all indices
        """
        return self.transport.perform_request(
            "GET", _make_path(index, "_ccr", "info"), params=params
        )