Add all files

app/Models/CustomProperty.php

@@ -0,0 +1,19 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+
+class CustomProperty extends Model
+{
+    use HasFactory;
+
+    public $timestamps = false;
+
+    public $guarded = [];
+
+    public $casts = [
+        'allowed_values' => 'array',
+    ];
+}