plugin install

wp/wp-content/plugins/gravityforms/includes/transients/interface-gf-transient-strategy.php

@@ -0,0 +1,13 @@
+<?php
+
+namespace Gravity_Forms\Gravity_Forms\Transients;
+
+interface GF_Transient_Strategy {
+
+	public function get( $key );
+
+	public function set( $key, $value, $timeout );
+
+	public function delete( $key );
+
+}