docs: public static void hideOnlyChannels(Object... channels){
      for(LogRecordHandler handler : handlers){
        if(handler instanceof VisibilityHandler){
          VisibilityHandler visHandler = (VisibilityHandler) handler;
          visHandler.showAll();
          for (Object channel : channels) {
            visHandler.alsoHide(channel);
          }
        }
      }
    }