chill-bundles/src/Bundle/ChillMainBundle/config/services/serializer.yaml

---
services:

    # note: the autowiring for serializers and normalizers is declared
    # into ../services.yaml

    Chill\MainBundle\Serializer\Normalizer\DoctrineExistingEntityNormalizer:
        autowire: true
        tags:
            - { name: 'serializer.normalizer', priority: 8 }