// Create the kernel.
  Device* dev = flr->device();
  Status s;
  auto props = std::make_shared<NodeProperties>(
      &fbody->record->fdef().signature(), node_def, fbody->arg_types,
      fbody->ret_types);
  OpKernelConstruction construction(DeviceType(dev->device_type()), dev,
                                    dev->GetAllocator(AllocatorAttributes()),

  string GetOpAttrStruct() const;
  string GetConstructorDecl(StringPiece op_name_prefix,
                            bool include_attr) const;

  string op_name;
  std::vector<string> arg_types;
  std::vector<string> arg_names;
  std::vector<string> output_types;
  std::vector<string> output_names;
  std::vector<bool> is_list_output;
  bool has_optional_attrs;
  string comment;

      kTfSavedModelIndexPathAttr, builder.getArrayAttr({file_prefix_attr}))});

  const int insert_idx = func_op.getNumArguments();

  func_op.insertArgument(insert_idx, /*argType=*/filename_op_type, arg_attrs,
                         NameLoc::get(file_prefix_attr));

  return func_op.getArgument(insert_idx);
}

// Creates a 1D string array constant for "tensor_names" input of `RestoreV2`