WellCommerce\Component\DataSet\DataSetInterface::setColumns PHP Метод

    public function setColumns(ColumnCollection $columns);

 /**
  * {@inheritdoc}
  */
 public function setColumns(array $columns = [])
 {
     $collection = new ColumnCollection();
     foreach ($columns as $alias => $source) {
         $collection->add(new Column(['alias' => $alias, 'source' => $source]));
     }
     $this->dataset->setColumns($collection);
 }