message: Use auto when appropriate.
diff: @@ -146,7 +146,7 @@ class GlobalCalibratorRegistry {
  "Failed to create calibrator, context already registered.");
  return kTfLiteError;
  }
  - std::unique_ptr<Calibrator> calibrator = absl::make_unique<Calibrator>(
  + auto calibrator = absl::make_unique<Calibrator>(
  node_to_opinfo, std::move(logging_op_resolver));
  calibrator_registry_[context] = std::move(calibrator);
  *calibrator_ptr = calibrator_registry_.at(context).get();
  