}

const std::string TempFile::getName() const { return name_; }

bool TempFile::truncate() {
  std::fstream::close();
  std::fstream::open(name_, std::ios::binary | std::ios::out);
  return std::fstream::is_open();

	defer close(cacheStmt.prepared)

	// Reason why cannot lock conn.PrepareContext
	// suppose the maxopen is 1, g1 is creating record and g2 is querying record.
	// 1. g1 begin tx, g1 is requeue because of waiting for the system call, now `db.ConnPool` db.numOpen == 1.
	// 2. g2 select lock `conn.PrepareContext(ctx, query)`, now db.numOpen == db.maxOpen , wait for release.

    *serialized_model = std::string{std::istreambuf_iterator<char>(std::cin),
                                    std::istreambuf_iterator<char>()};
  } else {
    std::ifstream t(file_path);
    if (!t.is_open()) {
      std::cerr << "Failed to open input file.\n";
      return true;
    }
    *serialized_model = std::string{std::istreambuf_iterator<char>(t),
                                    std::istreambuf_iterator<char>()};