std::string holder = "test.holder.v0";
std::string hash = "test.hash.v0";

auto data = {
    std::string(4000000, 'a'),
    std::string(4000000, 'b'),
    std::string(4000000, 'c'),
    std::string(4000000, 'd'),
    std::string(4000000, 'e'),
    std::string(4000000, 'f'),
    std::string(4000000, 'g'),
};

UploadBlobClient client;
client.startUploadBlocking(holder, hash); 
for (auto &chunk : data) {
    client.uploadChunkBlocking((std::uint8_t *)chunk.c_str(), chunk.length());
} 
client.completeUploadBlocking();
std::vector<std::vector<std::uint8_t>> buffer;
DownloadBlobClient downloadClient(holder);
while (true) {
    auto resp = downloadClient.pullChunkBlocking();
    if (std::get<0>(resp)) {
        break;
    }
    buffer.push_back(std::get<1>(resp));
}
int sum = 0;
for (auto &it : buffer) {
    sum += it.size();
}
Logger::log("Total data size: " + std::to_string(sum));