PayPal\Api\PaymentCard::setIssueNumber PHP Method

The one- to two-digit card issue number. Required for UK Maestro cards.

public setIssueNumber ( string $issue_number )
$issue_number	string

    public function setIssueNumber($issue_number)
    {
        $this->issue_number = $issue_number;
        return $this;
    }

PaymentCard