--- /dev/null
+<?php
+
+namespace Drupal\layout_builder;
+
+/**
+ * Provides methods for enabling and disabling Layout Builder.
+ */
+interface LayoutBuilderEnabledInterface {
+
+ /**
+ * Determines if Layout Builder is enabled.
+ *
+ * @return bool
+ * TRUE if Layout Builder is enabled, FALSE otherwise.
+ */
+ public function isLayoutBuilderEnabled();
+
+ /**
+ * Enables the Layout Builder.
+ *
+ * @return $this
+ */
+ public function enableLayoutBuilder();
+
+ /**
+ * Disables the Layout Builder.
+ *
+ * @return $this
+ */
+ public function disableLayoutBuilder();
+
+}