FluidTYPO3\Vhs\ViewHelpers\OrViewHelper::initializeArguments PHP Method

    public function initializeArguments()
    {
        $this->registerArgument('alternative', 'mixed', 'Alternative if content is empty, can use LLL: shortcut');
        $this->registerArgument('arguments', 'array', 'Arguments to be replaced in the resulting string');
        $this->registerArgument('extensionName', 'string', 'UpperCamelCase extension name without vendor prefix');
    }