Xpressengine\Menu\MenuRepository::update PHP Method

    public function update(Menu $menu);

 /**
  * Update menu
  *
  * @param Menu $menu menu instance
  * @return Menu
  */
 public function update(Menu $menu)
 {
     $menu = $this->repo->update($menu);
     $key = $this->getCacheKey($menu->getKey());
     $this->cache->put($key, $menu);
     return $menu;
 }