docs: public void updateBadge(long identifier, StringHolder badge) {
          IDrawerItem drawerItem = getDrawerItem(identifier);
          if (drawerItem instanceof Badgeable) {
              Badgeable badgeable = (Badgeable) drawerItem;
              badgeable.withBadge(badge);
              updateItem((IDrawerItem) badgeable);
          }
      }