Neos\Flow\Property\TypeConverter\ArrayConverter::getResourceExportType PHP Метод

    protected function getResourceExportType(PropertyMappingConfigurationInterface $configuration = null)
    {
        if ($configuration === null) {
            return self::DEFAULT_RESOURCE_EXPORT_TYPE;
        }
        $exportType = $configuration->getConfigurationValue(ArrayConverter::class, self::CONFIGURATION_RESOURCE_EXPORT_TYPE);
        if ($exportType === null) {
            return self::DEFAULT_RESOURCE_EXPORT_TYPE;
        } elseif (!is_string($exportType)) {
            throw new InvalidPropertyMappingConfigurationException(sprintf('RESOURCE_EXPORT_TYPE must be of type string, "%s" given', is_object($exportType) ? get_class($exportType) : gettype($exportType)), 1404313373);
        }
        return $exportType;
    }