PhpOffice\PhpPresentation\Shape\Chart\Type\AbstractType::setHashIndex PHP Метод

Note that this index may vary during script execution! Only reliable moment is while doing a write of a workbook and when changes are not allowed.

public setHashIndex ( string $value )
$value	string	Hash index

    public function setHashIndex($value)
    {
        $this->hashIndex = $value;
        return $this;
    }

AbstractType