code: public static void hideChannels(Object... channels){
      // TODO this could share more code with the other show/hide(Only)Channels methods
      for(LogRecordHandler handler : handlers){
        if(handler instanceof VisibilityHandler){
          VisibilityHandler visHandler = (VisibilityHandler) handler;
          for (Object channel : channels) {
            visHandler.alsoHide(channel);
          }
        }
      }
    }
docs: Hide multiple channels.  All other channels will be unaffected.
  @param channels The channels to hide