docs: private JsonNode catNodes(String... fields) {
          final String fieldNames = String.join(",", fields);
          final Cat request = new Cat.NodesBuilder()
                  .setParameter("h", fieldNames)
                  .setParameter("full_id", true)
                  .setParameter("format", "json")
                  .build();
          final CatResult response = JestUtils.execute(jestClient, request, () -> "Unable to read Elasticsearch node information");
          return response.getJsonObject().path("result");
      }