return err
	}
	defer gw.Close()

	var wc io.WriteCloser
	wc = gzip.NewWriter(gw)
	if _, err = io.Copy(wc, r); err != nil {
		return err
	}

	if err = wc.Close(); err != nil {
		return err
	}

	// Persist to disk any caches.
	if err = gw.Sync(); err != nil {
		return err
	}

	// close everything before we delete.
	if err = gw.Close(); err != nil {
		return err
	}

                    requestBuilder.setFetchSource(fields, null);
                }
                return true;
            }, entity -> {
                entityList.add(entity);
                return entityList.size() <= (exceeded ? maxSearchDocSize : numFound);
            });
            return entityList;
        }
        return searchEngineClient.getDocumentList(fessConfig.getIndexDocumentUpdateIndex(), requestBuilder -> {

    /**
     * 
     * @return whether the transport is disconnected
     */
    public boolean isDisconnected () {
        return this.state == 4 || this.state == 5 || this.state == 6 || this.state == 0;
    }


    /**
     * @return whether the transport is marked failed
     */
    public boolean isFailed () {
        return this.state == 5 || this.state == 6;
    }

   * test*Hole to permit IAE. (But might this ignore genuine bugs?) But see the TODO above
   * testLower, which could make this all unnecessary
   */
  public static Method[] getHoleMethods() {
    return new Method[] {
      getMethod(NavigableSetNavigationTester.class, "testLowerHole"),
      getMethod(NavigableSetNavigationTester.class, "testFloorHole"),
      getMethod(NavigableSetNavigationTester.class, "testCeilingHole"),

	cause      error
}

func (err *s3Error) Cause() error {
	return err.cause
}

func (err *s3Error) ErrorCode() string {
	return err.code
}

func (err *s3Error) ErrorMessage() string {
	return err.message
}

func (err *s3Error) HTTPStatusCode() int {
	return err.statusCode
}

func (err *s3Error) Error() string {
	return err.message
}

func errInvalidDataType(err error) *s3Error {

    return emptySet();
  }

  protected Collection<Method> suppressForCheckedSet() {
    return emptySet();
  }

  protected Collection<Method> suppressForCheckedSortedSet() {
    return emptySet();
  }

  protected Collection<Method> suppressForAbstractSet() {
    return emptySet();
  }

  protected Collection<Method> suppressForConcurrentSkipListSetNatural() {
    return emptySet();
  }

        if (str == null) {
            return StringUtil.EMPTY;
        }
        return URLEncoder.encode(str, Constants.UTF_8_CHARSET);
    }

    @Deprecated
    protected static String urlDecode(final String str) {
        if (str == null) {
            return StringUtil.EMPTY;
        }
        return URLDecoder.decode(str, Constants.UTF_8_CHARSET);
    }

            return OptionalEntity.of(entity);
        case CrudMode.EDIT:
            if (form instanceof EditForm) {
                return ComponentUtil.getComponent(StemmerOverrideService.class).getStemmerOverrideItem(form.dictId, ((EditForm) form).id);
            }
            break;
        default:
            break;
        }
        return OptionalEntity.empty();
    }

	}
	if err := updateAuthHdrs(ctx, uri, "k8s", c.k8sCreds, ret, "x-mesh-authorization"); err != nil {
		return nil, err
	}
	if err := updateAuthHdrs(ctx, uri, "gcp", c.gcpCreds, ret, "authorization"); err != nil {
		return nil, err
	}
	return ret, nil
}

func (*meshAuthCredentials) RequireTransportSecurity() bool {
	return true
}

func NewSingleton[T any]() *Singleton[T] {
	return &Singleton[T]{set: make(chan struct{}), v: nil}
}

// Get will return the singleton value.
func (s *Singleton[T]) Get() *T {
	<-s.set
	return s.v
}

// GetNonBlocking will return the singleton value or nil if not set yet.
func (s *Singleton[T]) GetNonBlocking() *T {
	select {
	case <-s.set:
		return s.v
	default:
		return nil
	}
}