FluidTYPO3\Vhs\ViewHelpers\Variable\ExtensionConfigurationViewHelper::initializeArguments PHP Method

    public function initializeArguments()
    {
        $this->registerArgument('extensionKey', 'string', 'Extension key (lowercase_underscored format) to read configuration from');
        $this->registerArgument('path', 'string', 'Configuration path to read - if NULL, returns all configuration as array');
    }