Does this bundle currently support FCM? about rmspushnotificationsbundle HOT 6 OPEN

/**
 * @param ContainerInterface $container
 */
public function __construct(ContainerInterface $container)
{
    $this->container = $container;
    $this->serverKey = $this->container->getParameter('fcm_server_key');
}

public function send()
{
    foreach ($this->getUserDeviceTokens($this->getUser()) as $deviceToken) {

        $body = $this->getBody();
        $body['to'] = (string) $deviceToken;
        $body['priority'] = (int) $this->getPriority();

        $body = addcslashes(
            json_encode(
                $body
            ),
            '"'
        );

        $curl_string = <<<CURLSTRING

        // Manually run CuRL command from the command line :(
        $responseBody = json_decode(exec($curl_string), 1);

        // Check response from FCM to see if we need to remove any deregistered tokens from our database
        if (array_key_exists('results', $responseBody)) {
            foreach ($responseBody['results'] as $result) {
                if (array_key_exists('error', $result)) {
                    if ($result['error'] == 'InvalidRegistration') {
                        $this->removeTokenFromDatabase($deviceToken);
                    }
                }
            }
        }
    }
}

public function removeTokenFromDatabase($token)
{
    $deviceToken = $this->getObjectManager()->getRepository('MyBundle:MobileDeviceToken')->findBy([
        'user' => $this->getUser(),
        'token' => $token
    ]);

    foreach ($deviceToken as $token) {
        $this->getObjectManager()->remove($token);
    }

    $this->getObjectManager()->flush();
}