status === \Mollie\Api\Types\SalesInvoiceStatus::DRAFT; } /** * Returns whether the sales invoice is issued. * * @return bool */ public function isIssued() { return $this->status === \Mollie\Api\Types\SalesInvoiceStatus::ISSUED; } /** * Returns whether the sales invoice is paid. * * @return bool */ public function isPaid() { return $this->status === \Mollie\Api\Types\SalesInvoiceStatus::PAID; } }