Add comments to address model.

app/Models/Address.php

@@ -9,6 +9,11 @@ class Address extends Model
 {
     use SoftDeletes;
 
+    /**
+     * The attributes that are mass assignable.
+     *
+     * @var array<int, string>
+     */
     protected $fillable = [
         'is_address',
         'is_delivery',
@@ -20,8 +25,5 @@ class Address extends Model
         'state',
         'country',
         'zip',
-
     ];
-
-
 }