Weak hands cannot be planted, meager skills have no foundation. Shallow wisdom is futile, how can one hope for a good name?扰扰从役倦，屑屑身事微。少壮轻年月，迟暮惜光辉。
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
declare(strict_types=1);
namespace League\Csv;
use function count;
/**
* Validates column consistency when inserting records into a CSV document.
*/
class ColumnConsistency
{
protected int $columns_count;
/**
* @throws InvalidArgument if the column count is lesser than -1
*/
public function __construct(int $columns_count = -1)
{
if ($columns_count < -1) {
throw InvalidArgument::du