}

static int GetChildren(const TF_Filesystem* filesystem, const char* path,
                       char*** entries, TF_Status* status) {
  struct dirent** dir_entries = nullptr;
  /* we don't promise entries would be sorted */
  int num_entries =
      scandir(path, &dir_entries, RemoveSpecialDirectoryEntries, nullptr);
  if (num_entries < 0) {
    TF_SetStatusFromIOError(status, errno, path);
  } else {

    return nullptr;
  }
  const auto& m = reader->GetVariableToDataTypeMap();
  for (auto it = m.begin(); it != m.end(); ++it)
    reader->variable_list.push_back(it->first);
  std::sort(reader->variable_list.begin(), reader->variable_list.end());
  return reader;
}

void TF_DeleteCheckpointReader(TF_CheckpointReader* reader) { delete reader; }