diff --git a/src/Plugin/HookableCollection.php b/src/Plugin/HookableCollection.php
index 74bc337f42f33813106444e74a9cb0b767037be1..def6ec9d2bd5d3df16b7325f2ef5307ef55ef6e9 100644
--- a/src/Plugin/HookableCollection.php
+++ b/src/Plugin/HookableCollection.php
@@ -11,5 +11,14 @@ interface HookableCollection extends Hookable {
 	 */
 	public function add_hookable( Hookable $hookable_object );
 
+	/**
+	 * Get hookable instance.
+	 *
+	 * @param string $class_name Class name.
+	 *
+	 * @return false|Hookable
+	 */
+	public function get_hookable_instance_by_class_name( $class_name );
+
 }