N°8771 - Add Symfony form component to iTop core

- IO debug

sources/Forms/Block/IO/Format/ClassIOFormat.php

@@ -2,7 +2,9 @@
 
 namespace Combodo\iTop\Forms\Block\IO\Format;
 
-class ClassIOFormat
+use JsonSerializable;
+
+class ClassIOFormat implements JsonSerializable
 {
 	public function __construct(public string $sClassName)
 	{
@@ -13,4 +15,9 @@ class ClassIOFormat
 	{
 		return $this->sClassName;
 	}
+
+	public function jsonSerialize(): mixed
+	{
+		return $this->sClassName;
+	}
 }