r1 := NewRecord(time.Time{}, 0, "", 0)
	r1.AddAttrs(intAttrs(0, nAttrsInline+1)...)
	// Ensure that r1.back's capacity exceeds its length.
	b := make([]Attr, len(r1.back), len(r1.back)+1)
	copy(b, r1.back)
	r1.back = b
	// Make a copy that shares state.
	r2 := r1
	// Adding to both should insert a special Attr in the second.
	r1AttrsBefore := attrsSlice(r1)
	r1.AddAttrs(Int("p", 0))
	r2.AddAttrs(Int("p", 1))

	testenv.SkipIfOptimizationOff(t)
	r := NewRecord(time.Now(), LevelInfo, "msg", 0)
	for i := 0; i < 10; i++ {
		r.AddAttrs(Int("x = y", i))
	}
	var h Handler = NewTextHandler(io.Discard, nil)
	wantAllocs(t, 0, func() { h.Handle(context.Background(), r) })

	h = h.WithGroup("s")
	r.AddAttrs(Group("g", Int("a", 1)))
	wantAllocs(t, 0, func() { h.Handle(context.Background(), r) })
}

  func::FuncOp main_func_op = GetMainFuncOp(*module_op);
  DictionaryAttr arg_attrs = main_func_op.getArgAttrDict(/*index=*/0);

  EXPECT_THAT(arg_attrs.get("tf_saved_model.bound_input"), IsNull());

  const ArrayRef<Attribute> index_path_attrs =
      mlir::cast<ArrayAttr>(arg_attrs.get("tf_saved_model.index_path"))
          .getValue();
  EXPECT_THAT(index_path_attrs, SizeIs(1));

	for i := 0; i < r.nFront; i++ {
		if !f(r.front[i]) {
			return
		}
	}
	for _, a := range r.back {
		if !f(a) {
			return
		}
	}
}

// AddAttrs appends the given Attrs to the [Record]'s list of Attrs.
// It omits empty groups.
func (r *Record) AddAttrs(attrs ...Attr) {
	var i int
	for i = 0; i < len(attrs) && r.nFront < len(r.front); i++ {
		a := attrs[i]
		if a.Value.isEmptyGroup() {
			continue
		}

// Given argument attributes `arg_attrs`, returns a new set of argument
// attributes where the "tf_saved_model.bound_input" attribute has been replaced
// with the "tf_saved_model.index_path" attribute. `index_path` is the element
// of the index path attribute.
SmallVector<NamedAttribute> ReplaceBoundInputAttrWithIndexPathAttr(
    const ArrayRef<NamedAttribute> arg_attrs, const StringRef index_path,
    Builder& builder) {

	addrs    []IPAddr // addrs to sort
	addrAttr []ipAttr
	srcs     []netip.Addr // or not valid addr if unreachable
	srcAttr  []ipAttr
}

func (s *byRFC6724) Len() int { return len(s.addrs) }

func (s *byRFC6724) Swap(i, j int) {
	s.addrs[i], s.addrs[j] = s.addrs[j], s.addrs[i]
	s.srcs[i], s.srcs[j] = s.srcs[j], s.srcs[i]
	s.addrAttr[i], s.addrAttr[j] = s.addrAttr[j], s.addrAttr[i]

import (
	"bytes"
	"context"
	"log/slog"
	"slices"
	"testing"
)

func TestHandlers(t *testing.T) {
	ctx := context.Background()
	r := slog.NewRecord(testTime, slog.LevelInfo, testMessage, 0)
	r.AddAttrs(testAttrs...)
	t.Run("text", func(t *testing.T) {
		var b bytes.Buffer
		h := newFastTextHandler(&b)
		if err := h.Handle(ctx, r); err != nil {
			t.Fatal(err)
		}
		got := b.String()
		if got != wantText {

  // Set stack trace to be used for potential async error reporting.
  virtual void SetStackTrace(ManagedStackTrace stack_trace) = 0;

  virtual const tensorflow::AbstractOpAttrs* GetOpAttrs() const = 0;
  virtual void AddAttrs(const AbstractOpAttrs* op_attrs) = 0;

  virtual void SetCancellationManager(
      CancellationManager* cancellation_manager) = 0;

  // Returns the stack trace set by `SetStackTrace` if exists.

  const auto file_prefix_attr = builder.getStringAttr(kTfFilePrefix);
  const auto arg_attrs = builder.getDictionaryAttr({builder.getNamedAttr(
      kTfSavedModelIndexPathAttr, builder.getArrayAttr({file_prefix_attr}))});

  const int insert_idx = func_op.getNumArguments();

  func_op.insertArgument(insert_idx, /*argType=*/filename_op_type, arg_attrs,
                         NameLoc::get(file_prefix_attr));

          flr, function, &fbody, &constant_arg_indices, &resource_arg_indices));
      VLOG(3) << "Found constant arg indices: "
              << absl::StrJoin(constant_arg_indices, ", ");

      node->AddAttr("_input_hostmem", constant_arg_indices);
    }
  }
  return absl::OkStatus();
}