containsNonScalars example

    public function render(string|ControllerReference $uri, Request $request, array $options = []): Response
    {
        if (!$this->surrogate || !$this->surrogate->hasSurrogateCapability($request)) {
            if ($uri instanceof ControllerReference && $this->containsNonScalars($uri->attributes)) {
                throw new \InvalidArgumentException('Passing non-scalar values as part of URI attributes to the ESI and SSI rendering strategies is not supported. Use a different rendering strategy or pass scalar values.');
            }

            return $this->inlineStrategy->render($uri, $request, $options);
        }

        $absolute = $options['absolute_uri'] ?? false;

        if ($uri instanceof ControllerReference) {
            $uri = $this->generateSignedFragmentUri($uri, $request, $absolute);
        }

        

    public function render(string|ControllerReference $uri, Request $request, array $options = []): Response
    {
        if (!$this->surrogate || !$this->surrogate->hasSurrogateCapability($request)) {
            if ($uri instanceof ControllerReference && $this->containsNonScalars($uri->attributes)) {
                throw new \InvalidArgumentException('Passing non-scalar values as part of URI attributes to the ESI and SSI rendering strategies is not supported. Use a different rendering strategy or pass scalar values.');
            }

            return $this->inlineStrategy->render($uri, $request, $options);
        }

        $absolute = $options['absolute_uri'] ?? false;

        if ($uri instanceof ControllerReference) {
            $uri = $this->generateSignedFragmentUri($uri, $request, $absolute);
        }