standard_pipeline_options.form_clusters = pass_config.form_clusters;
  mlir::TF::CreateTFStandardPipeline(*pass_manager, standard_pipeline_options);
  pass_manager->addNestedPass<mlir::func::FuncOp>(
      mlir::TF::CreateDeviceIndexSelectorPass());

  // Add canonicalize pass to remove no-op session initializer pass.
  pass_manager->addPass(mlir::createCanonicalizerPass());

  if (pass_config.guarantee_all_funcs_one_use) {

std::unique_ptr<OperationPass<func::FuncOp>> CreateFusedKernelMatcherPass();

// Creates function pass to select device index/fold tf.DeviceIndex.
std::unique_ptr<OperationPass<func::FuncOp>> CreateDeviceIndexSelectorPass();

// Creates function pass to replace InitializeTableFromTextFileV2Ops with
// LookupTableImportV2Op ops.
std::unique_ptr<OperationPass<func::FuncOp>> CreateInitTextFileToImportPass(