message: Change TPU_LOAD_LIBRARY to accept 1/0 instead of true/false.
diff: @@ -39,11 +39,11 @@ bool TryAcquireTpuLock() {
  if (!attempted_file_open) {
  std::string load_library_override =
  - absl::StringCat(getenv("TPU_LOAD_LIBRARY"));
  + absl::StrCat(getenv("TPU_LOAD_LIBRARY"));
  - if (load_library_override == "true") {
  + if (load_library_override == "1") {
  return true;
  - } else if (load_library_override == "false") {
  + } else if (load_library_override == "0") {
  return false;
  }
  should_load_library = true;
  