getPlainBody example

'success' => false,
                'message' => 'Could not create mail object.',
            ]);

            return;
        }

        $this->view->assign([
            'mail' => [
                'error' => false,
                'content' => $mail->getPlainBodyText(),
                'contentHtml' => $mail->getPlainBody(),
                'subject' => $mail->getPlainSubject(),
                'to' => implode(', ', $mail->getTo()),
                'fromMail' => $mail->getFrom(),
                'fromName' => $mail->getFromName(),
                'sent' => false,
                'isHtml' => !empty($mail->getPlainBody()),
                'orderId' => $orderId,
            ],
        ]);
    }