WP_AI_Client_Cache

22class WP_AI_Client_Cache implements CacheInterface {23 24	/**25	 * Cache group used for all cache operations.26	 *27	 * @since 7.0.028	 * @var string29	 */30	private const CACHE_GROUP = 'wp_ai_client';31 32	/**33	 * Fetches a value from the cache.34	 *35	 * @since 7.0.036	 *37	 * @param string $key           The unique key of this item in the cache.38	 * @param mixed  $default_value Default value to return if the key does not exist.39	 * @return mixed The value of the item from the cache, or $default_value in case of cache miss.40	 */41	public function get( $key, $default_value = null ) {42		$found = false;43		$value = wp_cache_get( $key, self::CACHE_GROUP, false, $found );44 45		if ( ! $found ) {46			return $default_value;47		}48 49		return $value;50	}51 52	/**53	 * Persists data in the cache, uniquely referenced by a key with an optional expiration TTL time.54	 *55	 * @since 7.0.056	 *57	 * @param string                $key   The key of the item to store.58	 * @param mixed                 $value The value of the item to store, must be serializable.59	 * @param null|int|DateInterval $ttl   Optional. The TTL value of this item.60	 * @return bool True on success and false on failure.61	 */62	public function set( $key, $value, $ttl = null ): bool {63		$expire = $this->ttl_to_seconds( $ttl );64 65		return wp_cache_set( $key, $value, self::CACHE_GROUP, $expire );66	}67 68	/**69	 * Delete an item from the cache by its unique key.70	 *71	 * @since 7.0.072	 *73	 * @param string $key The unique cache key of the item to delete.74	 * @return bool True if the item was successfully removed. False if there was an error.75	 */76	public function delete( $key ): bool {77		return wp_cache_delete( $key, self::CACHE_GROUP );78	}79 80	/**81	 * Wipes clean the entire cache's keys.82	 *83	 * This method only clears the cache group used by this adapter. If the underlying84	 * cache implementation does not support group flushing, this method returns false.85	 *86	 * @since 7.0.087	 *88	 * @return bool True on success and false on failure.89	 */90	public function clear(): bool {91		if ( ! function_exists( 'wp_cache_supports' ) || ! wp_cache_supports( 'flush_group' ) ) {92			return false;93		}94 95		return wp_cache_flush_group( self::CACHE_GROUP );96	}97 98	/**99	 * Obtains multiple cache items by their unique keys.100	 *101	 * @since 7.0.0