Rector changes and immplementations of required methods

src/Bundle/ChillMainBundle/Serializer/Normalizer/EntityWorkflowAttachmentNormalizer.php

@@ -47,8 +47,19 @@ class EntityWorkflowAttachmentNormalizer implements NormalizerInterface, Normali
         ];
     }
 
-    public function supportsNormalization($data, ?string $format = null)
+    public function supportsNormalization($data, ?string $format = null, array $context = []): bool
     {
         return 'json' === $format && $data instanceof EntityWorkflowAttachment;
     }
+
+    public function getSupportedTypes(?string $format): array
+    {
+        if ('json' !== $format) {
+            return [];
+        }
+
+        return [
+            EntityWorkflowAttachment::class => true,
+        ];
+    }
 }