Add all files

app/Observers/ServiceCancellationObserver.php

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+<?php
+
+namespace App\Observers;
+
+use App\Events\ServiceCancellation as ServiceCancellationEvent;
+use App\Models\ServiceCancellation;
+
+class ServiceCancellationObserver
+{
+    /**
+     * Handle the ServiceCancellation "created" event.
+     */
+    public function created(ServiceCancellation $serviceCancellation): void
+    {
+        event(new ServiceCancellationEvent\Created($serviceCancellation));
+    }
+
+    /**
+     * Handle the ServiceCancellation "updated" event.
+     */
+    public function updated(ServiceCancellation $serviceCancellation): void
+    {
+        event(new ServiceCancellationEvent\Updated($serviceCancellation));
+    }
+
+    /**
+     * Handle the ServiceCancellation "deleted" event.
+     */
+    public function deleted(ServiceCancellation $serviceCancellation): void
+    {
+        event(new ServiceCancellationEvent\Deleted($serviceCancellation));
+    }
+}