Google\Cloud\PubSub\Connection\Grpc::createSubscription PHP Method

    public function createSubscription(array $args)
    {
        if (isset($args['pushConfig'])) {
            $args['pushConfig'] = $this->buildPushConfig($args['pushConfig']);
        }
        return $this->send([$this->subscriberClient, 'createSubscription'], [$this->pluck('name', $args), $this->pluck('topic', $args), $args]);
    }