public Task <TResponse> ExplainLifecycleAsync <TResponse>(string index, ExplainLifecycleRequestParameters requestParameters = null, CancellationToken ctx = default)
     where TResponse : class, ITransportResponse, new() => DoRequestAsync <TResponse>(GET, Url($"{index:index}/_ilm/explain"), ctx, null, RequestParams(requestParameters));
 ///<summary>GET on /{index}/_ilm/explain <para>https://www.elastic.co/guide/en/elasticsearch/reference/current/ilm-explain-lifecycle.html</para></summary>
 ///<param name = "index">The name of the index to explain</param>
 ///<param name = "requestParameters">Request specific configuration such as querystring parameters &amp; request specific connection settings.</param>
 public TResponse ExplainLifecycle <TResponse>(string index, ExplainLifecycleRequestParameters requestParameters = null)
     where TResponse : class, ITransportResponse, new() => DoRequest <TResponse>(GET, Url($"{index:index}/_ilm/explain"), null, RequestParams(requestParameters));