pack(b *Builder, a *Action, afile string, ofiles []string) error
	// ld runs the linker to create an executable starting at mainpkg.
	ld(b *Builder, root *Action, targetPath, importcfg, mainpkg string) error
	// ldShared runs the linker to create a shared library containing the pkgs built by toplevelactions
	ldShared(b *Builder, root *Action, toplevelactions []*Action, targetPath, importcfg string, allactions []*Action) error

  bool log_if_failed = op.getLogIfFailed();
  auto fbb = std::make_unique<flexbuffers::Builder>();
  fbb->Map([&]() {
    fbb->Float("tolerance", tolerance);
    fbb->Bool("log_if_failed", log_if_failed);
  });
  fbb->Finish();
  auto f = std::unique_ptr<flexbuffers::Builder>(fbb.release());
  auto custom_option = f->GetBuffer();
  auto opcode_index =

  OpBuilder builder(&func.front().front());
  for (auto arg : func.getArguments()) {
    Value operand = op.getOperand(arg.getArgNumber());
    if (isa_and_nonnull<TF::ConstOp>(operand.getDefiningOp())) {
      xla_recv_at_host_op.getResult(arg.getArgNumber())
          .replaceAllUsesWith(
              builder.clone(*operand.getDefiningOp())->getResult(0));
    }
  }

	handler Handler
}

func newHandlerTest(h Handler) handlerTest {
	return handlerTest{handler: h}
}

func (ht *handlerTest) rawResponse(req string) string {
	reqb := reqBytes(req)
	var output strings.Builder
	conn := &rwTestConn{
		Reader: bytes.NewReader(reqb),
		Writer: &output,
		closec: make(chan bool, 1),
	}
	ln := &oneConnListener{conn: conn}
	srv := &Server{
		ErrorLog: log.New(&ht.logbuf, "", 0),

				return
			}
		}
		if closer, ok := enc.(expfmt.Closer); ok {
			closer.Close()
		}
	})
}

func toSnake(camel string) (snake string) {
	var b strings.Builder
	l := len(camel)
	for i, v := range camel {
		// A is 65, a is 97
		if v >= 'a' {
			b.WriteRune(v)
			continue
		}
		// v is capital letter here
		// disregard first letter