Add getSupportedTypes method for (de)normalizerInterface implementations

src/Bundle/ChillPersonBundle/Serializer/Normalizer/AccompanyingPeriodWorkNormalizer.php

@@ -137,4 +137,12 @@ class AccompanyingPeriodWorkNormalizer implements \Symfony\Component\Serializer\
             default => false,
         };
     }
+
+    public function getSupportedTypes(?string $format): array
+    {
+        return match ($format) {
+            'json', 'docgen' => [AccompanyingPeriodWork::class => true],
+            default => [],
+        };
+    }
 }