+ /**
+ * @param WANObjectCache $cache
+ * @param TitleValue $t
+ * @return string[]
+ * @since 1.28
+ */
+ public function getMutableCacheKeys( WANObjectCache $cache, TitleValue $t ) {
+ if ( $this->isCacheable( $t ) ) {
+ return [ $cache->makeKey( 'page', $t->getNamespace(), sha1( $t->getDBkey() ) ) ];
+ }
+
+ return [];
+ }
+