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

    public function modifyPushConfig(array $args)
    {
        return $this->send([$this->subscriberClient, 'modifyPushConfig'], [$this->pluck('subscription', $args), $this->buildPushConfig($this->pluck('pushConfig', $args)), $args]);
    }