static Status LiftVariables(const SavedModelBundle& bundle,
                              mlir::ModuleOp module,
                              bool lift_varhandle_ops_to_args,
                              bool include_variables_in_initializers);
};

Status SavedModelSignatureDefImporter::LiftVariables(
    const SavedModelBundle& bundle, mlir::ModuleOp module,

    return nullptr;
  }

  std::unordered_set<string> tag_set;
  for (int i = 0; i < tags_len; i++) {
    tag_set.insert(string(tags[i]));
  }

  tensorflow::SavedModelBundle bundle;
  status->status =
      tensorflow::LoadSavedModel(session_options->options, run_options_proto,
                                 export_dir, tag_set, &bundle);
  if (!status->status.ok()) return nullptr;