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getAttributeValue example

        foreach ($attributes as $attribute) {
            $maxDepthReached = false;
            if (null !== $attributesMetadata && ($maxDepthReached = $this->isMaxDepthReached($attributesMetadata, $class, $attribute, $context)) && !$maxDepthHandler) {
                continue;
            }

            $attributeContext = $this->getAttributeNormalizationContext($object, $attribute, $context);

            try {
                $attributeValue = $this->getAttributeValue($object, $attribute, $format, $attributeContext);
            } catch (UninitializedPropertyException $e) {
                if ($context[self::SKIP_UNINITIALIZED_VALUES] ?? $this->defaultContext[self::SKIP_UNINITIALIZED_VALUES] ?? true) {
                    continue;
                }
                throw $e;
            } catch (\Error $e) {
                if (($context[self::SKIP_UNINITIALIZED_VALUES] ?? $this->defaultContext[self::SKIP_UNINITIALIZED_VALUES] ?? true) && $this->isUninitializedValueError($e)) {
                    continue;
                }
                throw $e;
            }

if ($count > 1) {
            $e = new UserNotFoundException('More than one user found.');
            $e->setUserIdentifier($identifier);

            throw $e;
        }

        $entry = $entries[0];

        try {
            if (null !== $this->uidKey) {
                $identifier = $this->getAttributeValue($entry, $this->uidKey);
            }
        } catch (InvalidArgumentException) {
        }

        return $this->loadUser($identifier, $entry);
    }

    public function refreshUser(UserInterface $user): UserInterface
    {
        if (!$user instanceof LdapUser) {
            throw new UnsupportedUserException(sprintf('Instances of "%s" are not supported.', get_debug_type($user)));
        }