{kSavedModelTagServe}, &bundle);
  EXPECT_FALSE(st.ok());
}

TEST_F(LoaderTest, MaybeSavedModelDirectory) {
  // Valid SavedModel directory.
  const string export_dir =
      io::JoinPath(testing::TensorFlowSrcRoot(), kTestDataSharded);
  EXPECT_TRUE(MaybeSavedModelDirectory(export_dir));

  // Directory that does not exist.
  const string missing_export_dir =

                             {kSavedModelTagServe}, &bundle);
  EXPECT_FALSE(st.ok());
}

TEST_F(LoaderTest, MaybeSavedModelDirectory) {
  // Valid SavedModel directory.
  const string export_dir =
      io::JoinPath(testing::TensorFlowSrcRoot(), kTestDataSharded);
  EXPECT_TRUE(MaybeSavedModelDirectory(export_dir));

  // Directory that does not exist.
  const string missing_export_dir =

/// the export directory definitely does not contain a SavedModel. If the method
/// returns `true`, the export directory may contain a SavedModel but provides
/// no guarantee that it can be loaded.
bool MaybeSavedModelDirectory(const std::string& export_dir);

}  // namespace tensorflow

  TF_RETURN_IF_ERROR(LoadSavedModelGeneric(rewritten_options, run_options,
                                           export_dir, tags, bundle));
  return absl::OkStatus();
}

bool MaybeSavedModelDirectory(const string& export_dir) {
  const string saved_model_pb_path =
      io::JoinPath(export_dir, kSavedModelFilenamePb);
  const string saved_model_cpb_path =
      io::JoinPath(export_dir, kSavedModelFilenameCpb);