docs: private JsonNode catIndices(Collection<String> indices, String... fields) {
          final String fieldNames = String.join(",", fields);
          final Cat request = new Cat.IndicesBuilder()
                  .addIndex(indices)
                  .setParameter("h", fieldNames)
                  .build();
          final CatResult response = JestUtils.execute(jestClient, request, () -> "Unable to read information for indices " + indices);
          return response.getJsonObject().path("result");
      }