app/bundles/SmsBundle/Api/TwilioApi.php

<?php

namespace Mautic\SmsBundle\Api;

use Mautic\SmsBundle\Integration\Twilio\TwilioTransport;

/**
 * @deprecated Use \Mautic\SmsBundle\Integration\Twilio\TwilioTransport instead
 */
class TwilioApi extends TwilioTransport
{
}