--- /dev/null
+<?php
+
+namespace Drupal\ctools\Wizard;
+
+/**
+ * Form wizard interface for use with entities.
+ */
+interface EntityFormWizardInterface extends FormWizardInterface {
+
+ /**
+ * The fieldset #title for your label & machine name elements.
+ *
+ * @return string
+ */
+ public function getWizardLabel();
+
+ /**
+ * The form element #title for your unique identifier label.
+ *
+ * @return string
+ */
+ public function getMachineLabel();
+
+ /**
+ * The machine name of the entity type.
+ *
+ * @return string
+ */
+ public function getEntityType();
+
+ /**
+ * A method for determining if this entity already exists.
+ *
+ * @return callable
+ * The callable to pass the id to via typical machine_name form element.
+ */
+ public function exists();
+
+}