call_op->emitError() << "Failed to get quantization method: "
                         << method.status().ToString();
    return std::nullopt;
  }

  QuantizationResult result{};
  result.mutable_quantizable_unit()->set_name(
      GetCompositeFunctionName(callee_name));
  *result.mutable_method() = std::move(*method);
  return result;
}

// Retrieves `QuantizationResult` from `xla_call_module_op`. If

  // Construct a `QuantizationResult` to add, representing a unit named
  // `quantized_my_function` that is not quantized.
  QuantizationResult result{};
  QuantizableUnit& quantizable_unit = *result.mutable_quantizable_unit();
  quantizable_unit.set_name("quantized_my_function");

  Method& method = *result.mutable_method();
  method.mutable_no_quantization();

  QuantizationReport report{};