FailureOr<std::string> QuantizationMethodToTextProto(const Method& method) {
  TextFormat::Printer printer;
  printer.SetSingleLineMode(true);

  std::string method_txtpb;
  if (!printer.PrintToString(method, &method_txtpb)) {
    LLVM_DEBUG(llvm::dbgs() << "Failed to convert Method to textproto\n.");
    return failure();
  }

  // Single line mode might have an extra space at the end, due to the internal