$cache = JFactory::getCache('myComponent'); $data = $cache->get('myCacheKey'); if (!$data) { $data = fetch_data(); $cache->store('myCacheKey', $data); }In this example, we first get the Joomla! cache instance for our component using the `JFactory::getCache` method. We then try to retrieve the cached data using the `get` method and our cache key. If the data is not found in the cache, we fetch the data and store it using the `store` method with our cache key. This method is part of the Joomla Framework package library, which is the core package of the Joomla! CMS.