FluidTYPO3\Vhs\ViewHelpers\Condition\Page\IsChildPageViewHelper::initializeArguments PHP Method

    public function initializeArguments()
    {
        parent::initializeArguments();
        $this->registerArgument('pageUid', 'integer', 'value to check', false, null);
        $this->registerArgument('respectSiteRoot', 'boolean', 'value to check', false, false);
    }