auto* list = new TF_StringStream;
  list->list = tmpdirs;
  list->position = 0;
  return list;
}

char* TF_GetTempFileName(const char* extension) {
  return strdup(::tensorflow::io::GetTempFilename(extension).c_str());
}

TF_CAPI_EXPORT extern uint64_t TF_NowNanos(void) {
  return ::tensorflow::Env::Default()->NowNanos();
}

// Returns the number of microseconds since the Unix epoch.