`<https://www.elastic.co/guide/en/elasticsearch/reference/current/ilm-explain-lifecycle.html>`_

        :arg index: The name of the index to explain

def explain_lifecycle(self, index=None, params=None):
        """
        `<https://www.elastic.co/guide/en/elasticsearch/reference/current/ilm-explain-lifecycle.html>`_

        :arg index: The name of the index to explain
        """
        return self.transport.perform_request(
            "GET", _make_path(index, "_ilm", "explain"), params=params
        )