--- /dev/null
+<?php
+
+namespace Drupal\bootstrap_layouts\Annotation;
+
+use Drupal\Component\Annotation\Plugin;
+
+/**
+ * Defines a BootstrapLayoutsHandler annotation object.
+ *
+ * @Annotation
+ */
+class BootstrapLayoutsUpdate extends Plugin {
+
+ /**
+ * The plugin ID.
+ *
+ * @var string
+ */
+ public $id;
+
+ /**
+ * The schema number to be invoked on.
+ *
+ * @var int
+ */
+ public $schema;
+
+}
+