add rahyab notifcation service

app/Helpers/helpers.php

@@ -1,5 +1,7 @@
 <?php
 
+use Illuminate\Database\Eloquent\Model;
+
 if (!function_exists('pluckValues')) {
     /**
      * Extracts the values of a given key from an array of associative arrays.
@@ -15,3 +17,12 @@ if (!function_exists('pluckValues')) {
         }, $array);
     }
 }
+
+if (!function_exists('getNamespaceMap')) {
+
+    function getNamespaceMap(Model $model): string
+    {
+        return $model->getMorphClass();
+    }
+
+}