func Errorf(format string, a ...interface{}) error {
	e := fmt.Errorf(format, a...)
	ee := Error{}
	ee.msg = e.Error()
	ee.cause = errors.Unwrap(e)
	return ee
}

// Unwrap the internal error.
func (e Error) Unwrap() error { return e.cause }

// Error 'error' compatible method.
func (e Error) Error() string {
	if e.msg == "" {
		return "crypto: cause <nil>"
	}
	return e.msg
}

var (

	if res := DB.Model(user).Updates(values); res.Error != nil {
		t.Errorf("errors happened when update: %v", res.Error)
	} else if res.RowsAffected != 1 {
		t.Errorf("rows affected should be 1, but got : %v", res.RowsAffected)
	} else if user.Age != 5 {
		t.Errorf("Age should equals to 5, but got %v", user.Age)
	} else if user.Active != true {
		t.Errorf("Active should be true, but got %v", user.Active)
	}

		t.Errorf("Failed to batch find, got error %v, rows affected: %v", result.Error, result.RowsAffected)
	}

	var sub3 []User
	if result := DB.Limit(4).Where("name = ?", users[0].Name).FindInBatches(&sub3, 2, func(tx *gorm.DB, batch int) error {
		return nil
	}); result.Error != nil || result.RowsAffected != 4 {
		t.Errorf("Failed to batch find, got error %v, rows affected: %v", result.Error, result.RowsAffected)
	}
}

						if err := tw.WriteHeader(file.hdr); err != nil {
							b.Errorf("unexpected WriteHeader error: %v", err)
						}
						if _, err := tw.Write(file.body); err != nil {
							b.Errorf("unexpected Write error: %v", err)
						}
					}
					if err := tw.Close(); err != nil {
						b.Errorf("unexpected Close error: %v", err)
					}
				}
			})
		}
	})

				t.Errorf("%s: missing error, want %s", fileline, all)
			} else if !strings.Contains(err, mm[0][1]) {
				t.Errorf("%s: wrong error for %s:\n%s", fileline, all, err)
			}
		} else {
			if errors[fileline] != "" {
				t.Errorf("unexpected error on %s: %v", fileline, errors[fileline])
			}
		}
		delete(errors, fileline)
	}
	var extra []string
	for key := range errors {
		extra = append(extra, key)

		return nil, fmt.Errorf("cannot deserialize response %s", err)
	}
	return scopeInfos, nil
}

func (c *ControlzClient) PutScope(scope *ScopeInfo) error {
	var jsonScopeInfo bytes.Buffer
	err := json.NewEncoder(&jsonScopeInfo).Encode(scope)
	if err != nil {
		return fmt.Errorf("cannot serialize scope %+v", *scope)
	}
	req, err := http.NewRequest(http.MethodPut, c.baseURL.String()+"/"+scope.Name, &jsonScopeInfo)

	}
	if written != 5 {
		t.Errorf("Expected written to be '5', but got %v", written)
	}

	f.Seek(0, io.SeekStart)
	r.Seek(0, io.SeekStart)

	written, err = CopyAligned(f, r, *bufp, r.Size(), f)
	if !errors.Is(err, nil) {
		t.Errorf("Expected nil, but got %v", err)
	}
	if written != r.Size() {
		t.Errorf("Expected written to be '%v', but got %v", r.Size(), written)
	}

			}
		}
	}

	return errors.Join(delErrs...)
}

func (m *realDeps) listEntriesByIP(name string) ([]netip.Addr, error) {
	var ipList []netip.Addr

	res, err := netlink.IpsetList(name)
	if err != nil {
		return ipList, fmt.Errorf("failed to list ipset %s: %w", name, err)
	}

	for _, entry := range res.Entries {

					return nil
				}
				return errors.New("no data found on stream")
			}
			if errors.Is(err, estream.ErrNoKey) {
				if stream.Name == "inspect.zip" {
					return errors.New("incorrect private key")
				}
				if err := stream.Skip(); err != nil {
					return fmt.Errorf("stream skip: %w", err)
				}
				continue
			}
			if extracted {
				return keepFileErr{fmt.Errorf("next stream: %w", err)}
			}

		return err
	}

	if resp.GetAck().GetError() != "" {
		log.Errorf("add-workload: got ack error: %s", resp.GetAck().GetError())
		return fmt.Errorf("got ack error: %s", resp.GetAck().GetError())
	}
	return nil
}

// TODO ctx is unused here
// nolint: unparam
func (z *ztunnelServer) sendSnapshot(ctx context.Context, conn *ZtunnelConnection) error {
	snap := z.pods.ReadCurrentPodSnapshot()
	for uid, wl := range snap {