WrappedTemplatedEmail example

// email has already been rendered             return;
        }

        $messageContext = $message->getContext();

        if (isset($messageContext['email'])) {
            throw new InvalidArgumentException(sprintf('A "%s" context cannot have an "email" entry as this is a reserved variable.', get_debug_type($message)));
        }

        $vars = array_merge($this->context, $messageContext, [
            'email' => new WrappedTemplatedEmail($this->twig, $message),
        ]);

        if ($template = $message->getTextTemplate()) {
            $message->text($this->twig->render($template, $vars));
        }

        if ($template = $message->getHtmlTemplate()) {
            $message->html($this->twig->render($template, $vars));
        }

        $message->markAsRendered();