diff --git a/Models/Supplier.php b/Models/Supplier.php
index 165727c..2ecbfa3 100644
--- a/Models/Supplier.php
+++ b/Models/Supplier.php
@@ -79,7 +79,7 @@ class Supplier
 
     public function setReverseNumber($rev_no) : void
     {
-        if (!is_scalar($rev_no)) {
+        if (!\is_scalar($rev_no)) {
             throw new \Exception();
         }
 
diff --git a/Models/SupplierMapper.php b/Models/SupplierMapper.php
index 31e6918..141d544 100644
--- a/Models/SupplierMapper.php
+++ b/Models/SupplierMapper.php
@@ -75,8 +75,12 @@ final class SupplierMapper extends DataMapperAbstract
             'mapper' => ProfileMapper::class,
             'src'    => 'suppliermgmt_supplier_account',
         ],
-    ];
-
+    ];    /**
+     * Has many relation.
+     *
+     * @var array<string, array<string, string>>
+     * @since 1.0.0
+     */
     protected static $hasMany = [
         'files'           => [
             'mapper' => MediaMapper::class, /* mapper of the related object */