NodeDef def;
  def.set_op(op_name);
  def.set_name(node_name);
  def.set_device(device_name);
  def.add_input("input1");
  def.add_input("input2");
  def.add_input("input3");
  def.add_input("input3");
  def.add_input("input3");

  AttrValue v0;
  v0.set_type(DataType::DT_INT32);
  v0.set_i(3);
  (*def.mutable_attr())["NumInput3"] = v0;
  AttrValue v1;

    // [0, 1] is symmetric across the line Y=0.5.
    Value abs_input = rewriter.create<AbsOp>(loc, input);
    Value abs_input_floor = rewriter.create<FloorOp>(loc, abs_input);
    Value abs_frac_input =
        rewriter.create<SubOp>(loc, abs_input, abs_input_floor);

    // Convert values of abs_frac_input > 0.5 to (1 - frac_input) to improve

  Region &entry = func.getRegion();
  TypeConverter::SignatureConversion signature_conversion(
      entry.getNumArguments());
  for (const BlockArgument &arg : entry.getArguments()) {
    signature_conversion.addInputs(arg.getArgNumber(),
                                   updated_argument_types[arg.getArgNumber()]);
  }
  rewriter.applySignatureConversion(&entry.front(), signature_conversion);
}