+
+ $lifetime = $this->lifetime;
+ /**
+ * Filter the transient lifetime of the feed cache.
+ *
+ * @since 2.8.0
+ *
+ * @param int $lifetime Cache duration in seconds. Default is 43200 seconds (12 hours).
+ * @param string $filename Unique identifier for the cache object.
+ */
+ $this->lifetime = apply_filters( 'wp_feed_cache_transient_lifetime', $lifetime, $filename);