GetLatencyMicroseconds(read_start_microseconds);

  const uint64 graph_init_start_microseconds = Env::Default()->NowMicros();
  string init_op_name;
  TF_RETURN_IF_ERROR(
      internal::GetInitOp(export_dir, meta_graph, &init_op_name));
  TF_RETURN_IF_ERROR(RunInitOp(run_options, export_dir, meta_graph,
                               asset_file_defs, session->get(), init_op_name));