Approval.

pl/appointment_cancellation_status_set.php

@@ -1,3 +1,9 @@
 <?PHP
-$appointment_cancellation_status_set['scheduled_done'] = 'Scheduled or done as planned';
-$appointment_cancellation_status_set['cancelled'] = 'Cancelled';
+declare(strict_types = 1);
+array (
+  'appointment_cancellation_status_set' => 
+  array (
+    'scheduled_done' => 'Scheduled or done as planned',
+    'cancelled' => 'Cancelled',
+  ),
+)