diff --git a/core/modules/views/tests/themes/views_test_checkboxes_theme/views_test_checkboxes_theme.theme b/core/modules/views/tests/themes/views_test_checkboxes_theme/views_test_checkboxes_theme.theme
index 4a038ae..8673a81 100644
--- a/core/modules/views/tests/themes/views_test_checkboxes_theme/views_test_checkboxes_theme.theme
+++ b/core/modules/views/tests/themes/views_test_checkboxes_theme/views_test_checkboxes_theme.theme
@@ -1,7 +1,15 @@
 <?php
+
 /**
+ * @file
  * Changes an exposed "type" filter from a multi-select to checkboxes.
  */
-function views_test_checkboxes_theme_form_views_exposed_form_alter(&$form, \Drupal\Core\Form\FormStateInterface $form_state) {
+ 
+use Drupal\Core\Form\FormStateInterface;
+
+/**
+ * Changes an exposed "type" filter from a multi-select to checkboxes.
+ */
+function views_test_checkboxes_theme_form_views_exposed_form_alter(&$form, FormStateInterface $form_state) {
   $form['type']['#type'] = 'checkboxes';
 }