core-bundle/src/OptIn/OptInToken.php
public function send(string $subject = null, string $text = null): void
    {
        if ($this->isConfirmed()) {
            throw new OptInTokenAlreadyConfirmedException();
        }

        if (!$this->isValid()) {
            throw new OptInTokenNoLongerValidException();
        }

        if (!$this->hasBeenSent()) {
            if (null === $subject || null === $text) {
                throw new \LogicException('Please provide subject and text to send the token');
            }

            $this->model->emailSubject = $subject;
            $this->model->emailText = $text;
            $this->model->save();
        }

        /** @var Email $email */
        $email = $this->framework->createInstance(Email::class);
        $email->subject = $this->model->emailSubject;
        $email->text = $this->model->emailText;
        $email->sendTo($this->model->email);
    }
public function send(string $subject = null, string $text = null): void
    {
        if ($this->isConfirmed()) {
            throw new OptInTokenAlreadyConfirmedException();
        }

        if (!$this->isValid()) {
            throw new OptInTokenNoLongerValidException();
        }

        if (!$this->hasBeenSent()) {
            if (null === $subject || null === $text) {
                throw new \LogicException('Please provide subject and text to send the token');
            }

            $this->model->emailSubject = $subject;
            $this->model->emailText = $text;
            $this->model->save();
        }

        /** @var Email $email */
        $email = $this->framework->createInstance(Email::class);
        $email->subject = $this->model->emailSubject;
        $email->text = $this->model->emailText;
        $email->sendTo($this->model->email);
    }
{@inheritdoc}

@throws \LogicException