diff --git a/src/Handler.php b/src/Handler.php
index 466c0eb..5f536b0 100644
--- a/src/Handler.php
+++ b/src/Handler.php
@@ -64,6 +64,7 @@ class Handler implements RequestHandlerInterface
      */
     protected function returnType($reflectionType): string
     {
+        var_dump($reflectionType->getName());
         return match ($reflectionType->getName()) {
             'array'                 => ArrayFormat::class,
             'mixed', 'object'       => MixedFormat::class,