Draft: Resolve #3495440 "Declaration of drupalserializationnormalizeranynormalizernormalize"

Carlos Diazrequested to merge
issue/menu_normalizer-3495440:3495440-declaration-of-drupalserializationnormalizeranynormalizernormalize into 2.x

Closes #3495440

  • Adding "supportsNormalization" method to avoid exceptions as:

Symfony\Component\Serializer\Exception\NotNormalizableValueException: Could not normalize object of type "Drupal\Core\Menu\MenuLinkTreeElement", no supporting normalizer found. in Symfony\Component\Serializer\Serializer->normalize() (line 181 of /var/www/html/vendor/symfony/serializer/Serializer.php).

  • updating the signature

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