FluidTYPO3\Vhs\ViewHelpers\Iterator\ColumnViewHelper::initializeArguments PHP Метод

    public function initializeArguments()
    {
        $this->registerAsArgument();
        $this->registerArgument('subject', 'mixed', 'Input to work on - Array/Traversable/...');
        $this->registerArgument('columnKey', 'string', 'Name of the column whose values will become the value of the new array');
        $this->registerArgument('indexKey', 'string', 'Name of the column whose values will become the index of the new array');
    }