protected:
  explicit TracingTensorHandle(AbstractTensorHandleKind kind)
      : AbstractTensorHandle(kind) {}

 public:
  // For LLVM style RTTI.
  static bool classof(const AbstractTensorHandle* ptr) {
    return ptr->getKind() == kGraph || ptr->getKind() == kMlir;
  }
};

// An abstract operation describes an operation by its type, name, and
// attributes. It can be "executed" by the context with some input tensors.

				}
			} else {
				vars[idx] = nullStr
			}
		case driver.Valuer:
			reflectValue := reflect.ValueOf(v)
			if v != nil && reflectValue.IsValid() && ((reflectValue.Kind() == reflect.Ptr && !reflectValue.IsNil()) || reflectValue.Kind() != reflect.Ptr) {
				r, _ := v.Value()
				convertParams(r, idx)
			} else {
				vars[idx] = nullStr
			}
		case fmt.Stringer:
			reflectValue := reflect.ValueOf(v)
			switch reflectValue.Kind() {

				case reflect.Struct:
					reflectResults = reflect.Append(reflectResults, result.Addr())
				case reflect.Slice, reflect.Array:
					for i := 0; i < result.Len(); i++ {
						if elem := result.Index(i); elem.Kind() == reflect.Ptr {
							reflectResults = reflect.Append(reflectResults, elem)
						} else {
							reflectResults = reflect.Append(reflectResults, elem.Addr())
						}
					}
				}
			}
		}

		switch reflectValue.Kind() {

  virtual absl::optional<ManagedStackTrace> GetStackTrace() = 0;

  virtual void SetStepId(int64_t step_id) = 0;

  // For LLVM style RTTI.
  static bool classof(const AbstractOperation* ptr) {
    return ptr->getKind() == kEager || ptr->getKind() == kTfrt;
  }

 protected:
  explicit ImmediateExecutionOperation(AbstractOperationKind kind)
      : AbstractOperation(kind) {}
  ~ImmediateExecutionOperation() override {}
};

		{"driver.Valuer not equal", ModifyAt{Time: now, Valid: true}, ModifyAt{Time: now.Add(time.Second), Valid: true}, false},
		{"driver.Valuer equal (ptr to nil ptr)", (*ModifyAt)(nil), &ModifyAt{}, false},
	}
	for _, test := range assertEqualTests {
		t.Run(test.name, func(t *testing.T) {
			if out := AssertEqual(test.src, test.dst); test.out != out {

  absl::StatusOr<core::RefCountPtr<FunctionRecord>> GetFunctionRecord()
      override {
    return func_record_.GetNewRef();
  }

  // For LLVM style RTTI.
  static bool classof(const AbstractFunction* ptr) {
    return ptr->getKind() == kGraph;
  }

 private:
  core::RefCountPtr<FunctionRecord> func_record_;
};
}  // namespace graph
}  // namespace tracing
}  // namespace tensorflow

  // Included in the default implementation of DebugString.
  virtual absl::Status SummarizeValue(std::string& summary) const;

  // For LLVM style RTTI.
  static bool classof(const AbstractTensorHandle* ptr) {
    return ptr->getKind() == kEager || ptr->getKind() == kTfrt;
  }

 protected:
  explicit ImmediateExecutionTensorHandle(AbstractTensorHandleKind kind)
      : AbstractTensorHandle(kind) {}
  ~ImmediateExecutionTensorHandle() override {}

	if reflect.DeepEqual(x, y) {
		return true
	}
	if x == nil || y == nil {
		return false
	}

	xval := reflect.ValueOf(x)
	yval := reflect.ValueOf(y)
	if xval.Kind() == reflect.Ptr && xval.IsNil() ||
		yval.Kind() == reflect.Ptr && yval.IsNil() {
		return false
	}

	if valuer, ok := x.(driver.Valuer); ok {
		x, _ = valuer.Value()
	}
	if valuer, ok := y.(driver.Valuer); ok {
		y, _ = valuer.Value()
	}

		if !db.Statement.ReflectValue.CanAddr() || db.Statement.Model != db.Statement.Dest {
			db.Statement.ReflectValue = reflect.ValueOf(db.Statement.Model)
			for db.Statement.ReflectValue.Kind() == reflect.Ptr {
				db.Statement.ReflectValue = db.Statement.ReflectValue.Elem()
			}

			if dest, ok := db.Statement.Dest.(map[string]interface{}); ok {
				for _, rel := range db.Statement.Schema.Relationships.BelongsTo {

		return
	}
}

type visitMap = map[reflect.Value]bool

// Check if circular values, return true if loaded
func loadOrStoreVisitMap(visitMap *visitMap, v reflect.Value) (loaded bool) {
	if v.Kind() == reflect.Ptr {
		v = v.Elem()
	}

	switch v.Kind() {
	case reflect.Slice, reflect.Array:
		loaded = true
		for i := 0; i < v.Len(); i++ {
			if !loadOrStoreVisitMap(visitMap, v.Index(i)) {
				loaded = false