public function supportsValue(PickerConfig $config): bool
    {
        if ('page' === $config->getContext()) {
            return is_numeric($config->getValue());
        }

        return false !== strpos($config->getValue(), '{{link_url::');
    }
public function supportsValue(PickerConfig $config): bool
    {
        if ('page' === $config->getContext()) {
            return is_numeric($config->getValue());
        }

        return false !== strpos($config->getValue(), '{{link_url::');
    }
{@inheritdoc}