namespace tracing {

Status MaybeSetOpName(AbstractOperation* op, const char* op_name) {
  if (isa<TracingOperation>(op)) {
    TF_RETURN_IF_ERROR(dyn_cast<TracingOperation>(op)->SetOpName(op_name));
  }
  if (isa<gradients::TapeOperation>(op)) {
    TF_RETURN_IF_ERROR(MaybeSetOpName(
        dyn_cast<gradients::TapeOperation>(op)->GetBackingOperation(),
        op_name));
  }
  return absl::OkStatus();
}
}  // namespace tracing

using tensorflow::OpRegistrationData;
using tensorflow::OpRegistry;
using tensorflow::Status;

namespace {

void Register(const std::string& op_name, OpRegistry* registry) {
  registry->Register([op_name](OpRegistrationData* op_reg_data) -> Status {
    op_reg_data->op_def.set_name(op_name);
    return absl::OkStatus();
  });
}

}  // namespace

TEST(TfTextUtilsTest, TestTfTextRegistered) {

}

}  // namespace

void RegisterCostFunction(absl::string_view op_name,
                          CostFunction cost_function) {
  RegisterCostFunction(GetCostFunctionRegistry(), op_name,
                       std::move(cost_function));
}

bool HasCostFunctionRegistered(absl::string_view op_name) {
  return GetCostFunctionRegistry().contains(op_name);
}

int64_t CostAnalysis::GetCost(mlir::Operation* op) const {

    "/tensorflow/core/tf2xla/v1/mlir_failed_xla_legalize_tf_count",
    "Counts the attempts of legalization of ops", "op_name");

auto *mlir_failed_legalization_count = tensorflow::monitoring::Counter<2>::New(
    "/tensorflow/core/tf2xla/v1/mlir_failed_xla_legalize_tf_pass_count",
    "Counts the failure of legalization of ops", "op_name", "legality");

class LegalizeTF : public impl::LegalizeTFBase<LegalizeTF> {
 public:

  bool IsAllowListedOp(Operation *op) {
    std::string op_name = op->getName().getStringRef().str();
    if (IsAlwaysAllowlistedOp(op) || IsTfFakeQuantOp(op)) {
      return true;
    } else if (mode_ == kDefaultMode) {
      return QuantizableOpsInDefaultMode().count(op_name) > 0;
    } else if (mode_ == kLegacyIntegerMode) {
      return QuantizableOpsInLegacyMode().count(op_name) > 0;
    } else {

def _find_op(
    graph: ops.Graph, op_name: Optional[str]
) -> Optional[ops.Operation]:
  """Finds the operation with `op_name`.

  Args:
    graph: The graph to find from.
    op_name: Name of the node.

  Returns:
    The operation that corresponds to `op_name`. Returns None iff op_name is an
    empty string or None.

  Raises:
    ValueError: `op_name` is malformed.
  """
  if not op_name:

}
}  // namespace

Status GradientRegistry::Register(
    const string& op_name, GradientFunctionFactory gradient_function_factory) {
  auto iter = registry_.find(op_name);
  if (iter != registry_.end()) {
    const string error_msg = "Gradient already exists for op: " + op_name + ".";
    return errors::AlreadyExists(error_msg);
  }
  registry_.insert({op_name, gradient_function_factory});
  return absl::OkStatus();
}

    const std::string& op_name, const Location& location) {
  using tflite::metrics::ConverterErrorData;
  ConverterErrorData error;
  if (!pass_name.empty()) {
    error.set_subcomponent(pass_name);
  }

  if (!error_message.empty()) {
    error.set_error_message(error_message);
  }

  if (!op_name.empty()) {
    error.mutable_operator_()->set_name(op_name);
  }

absl::StatusOr<bool> IsSmallConstant(Node* n) {
  if (!n->IsConstant()) {
    return false;
  }

  return IsConstantSmall(n);
}

bool IsInPlaceOp(absl::string_view op_name) {
  return op_name == "InplaceUpdate" || op_name == "InplaceAdd" ||
         op_name == "InplaceSub";
}
}  // namespace

Status CloneConstantsForBetterClusteringPassImpl::CloneSmallConstantInputs(
    const absl::flat_hash_set<string>& name_set, Node* n) {

      return true;
    }
  }
  return false;
}

// Returns whether the current op is not supported by the TF Lite runtime.
static bool IsUnsupportedFlexOp(const std::string& op_name) {
  return op_name == "PartitionedCall" || op_name == "StatefulPartitionedCall";
}

// Create description of operation that could not be converted.
static std::string GetOpDescriptionForDebug(Operation* inst) {