class HelixUtils {

  public static void updateClusterConfig(HelixManager helixManager, String key, String value) {
    HelixConfigScope scope = newClusterConfigScope(helixManager);
    Map<String, String> properties = new HashMap<>();
    properties.put(key, value);
    helixManager.getClusterManagmentTool().setConfig(scope, properties);
  }

}