docs: @SuppressWarnings({"unused", "WeakerAccess"})
      public void setOffline(boolean value){
          offline = value;
          if (offline) {
              getConfigLogger().debug(getAccountId(), "CleverTap Instance has been set to offline, won't send events queue");
          } else {
              getConfigLogger().debug(getAccountId(), "CleverTap Instance has been set to online, sending events queue");
              flush();
          }
      }