transformation for small collection added

Author: Triplkrypl

src/Service/Transformation/Collection.php

@@ -0,0 +1,23 @@
+<?php
+
+declare(strict_types=1);
+
+namespace SimpleAsFuck\ApiToolkit\Service\Transformation;
+
+final class Collection
+{
+    /**
+     * @template TValue
+     * @param iterable<TValue> $transformed
+     * @param Transformer<TValue> $transformer
+     * @return array<int, \stdClass|\JsonSerializable>
+     */
+    public static function toApi(iterable $transformed, Transformer $transformer): array
+    {
+        $apiArray = [];
+        foreach ($transformed as $value) {
+            $apiArray[] = $transformer->toApi($value);
+        }
+        return $apiArray;
+    }
+}