code: public static void install(Application app, IWicketJquerySelectorsSettings settings) {
          final IWicketJquerySelectorsSettings existingSettings = settings(app);
  
          if (existingSettings == null) {
              if (settings == null) {
                  settings = new WicketJquerySelectorsSettings();
              }
  
              app.setMetaData(JQUERY_SELECTORS_SETTINGS_METADATA_KEY, settings);
  
              LOG.info("initialize wicket jquery selectors with given settings: {}", settings);
          }
      }
docs: installs the library settings to given app.
  
  @param app      the wicket application
  @param settings the settings to use