FluidTYPO3\Vhs\ViewHelpers\Page\Header\CanonicalViewHelper::initializeArguments PHP Method

    public function initializeArguments()
    {
        $this->registerUniversalTagAttributes();
        $this->registerArgument('pageUid', 'integer', 'The page uid to check', false, 0);
        $this->registerArgument('queryStringMethod', 'string', 'From which place to add parameters. Values: "GET", "POST" and "GET,POST". See ' . 'https://docs.typo3.org/typo3cms/TyposcriptReference/Functions/Typolink/Index.html, addQueryString.method', false, 'GET');
        $this->registerArgument('normalWhenNoLanguage', 'boolean', 'DEPRECATED: Visibility is now handled by core\'s typolink function.');
    }