struct FreezeGlobalTensorsPass
    : public impl::FreezeGlobalTensorsPassBase<FreezeGlobalTensorsPass> {
  explicit FreezeGlobalTensorsPass(bool allow_mutable_tensors) {
    this->allow_mutable_tensors = allow_mutable_tensors;
  }
  void runOnOperation() override;
};

void FreezeGlobalTensorsPass::runOnOperation() {
  auto module = getOperation();

  // freezing of TF v2 GlobalTensor ops. (Ref: b/206855389)
  pm.addPass(mlir::tf_saved_model::CreateOptimizeGlobalTensorsPass());
  pm.addPass(mlir::tf_saved_model::CreateFreezeGlobalTensorsPass(
      /*allow_mutable_tensors=*/true));

  // Generic MLIR optimization passes.
  pm.addPass(mlir::createCanonicalizerPass());
  pm.addPass(mlir::TF::CreateTFShapeInferencePass());

  // Legalizes TF UniformQuantized types into MHLO.

  // freezing of TF v2 GlobalTensor ops. (Ref: b/206855389)
  pm.addPass(mlir::tf_saved_model::CreateOptimizeGlobalTensorsPass());
  pm.addPass(mlir::tf_saved_model::CreateFreezeGlobalTensorsPass(
      /*allow_mutable_tensors=*/true));

  // Generic MLIR optimization passes.
  pm.addPass(mlir::createCanonicalizerPass());
  pm.addPass(mlir::TF::CreateTFShapeInferencePass(input_arg_shapes));

    // This pass 'freezes' immutable global tensors and inlines them as tf
    // constant ops.
    pass_manager->addPass(mlir::tf_saved_model::CreateFreezeGlobalTensorsPass(
        /*allow_mutable_tensors=*/pass_config.enable_tflite_variables));
  }

  if (!saved_model_dir.empty()) {
    // This pass 'freezes' tf saved model asset ops and inlines as string values
    // in a format of the tf constant op.