ApiPlatform\Core\Serializer\ContextTrait::initContext PHP Method

    private function initContext(string $resourceClass, array $context) : array
    {
        if (isset($context['api_sub_level'])) {
            return $context;
        }
        return array_merge($context, ['api_sub_level' => true, 'resource_class' => $resourceClass]);
    }