if (features.add(implied)) {
          queue.add(implied);
        }
      }
    }
    return features;
  }

  /**
   * Given a set of features, return a new set of all features directly or indirectly implied by any
   * of them.
   *
   * @param features the set of features whose implications to find
   * @return the implied set of features
   */
  public static Set<Feature<?>> impliedFeatures(Set<Feature<?>> features) {

	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 errCSVParsingError(err error) *s3Error {

		DeleteClauses:        []string{"DELETE", "FROM", "WHERE", "RETURNING"},
		LastInsertIDReversed: true,
	})

	return nil
}

func (DummyDialector) DefaultValueOf(field *schema.Field) clause.Expression {
	return clause.Expr{SQL: "DEFAULT"}
}

func (DummyDialector) Migrator(*gorm.DB) gorm.Migrator {
	return nil
}

func (DummyDialector) BindVarTo(writer clause.Writer, stmt *gorm.Statement, v interface{}) {

        if (commandLine.hasOption(CLIManager.FORCE)) {
            return Optional.of(Boolean.TRUE);
        }
        return Optional.empty();
    }

    @Override
    public Optional<Boolean> yes() {
        if (commandLine.hasOption(CLIManager.YES)) {
            return Optional.of(Boolean.TRUE);
        }
        return Optional.empty();
    }

    @Override
    public Optional<List<String>> goals() {

	revWebhooks, err := GetWebhooksWithRevision(ctx, client.Kube(), opts.Revision)
	if err != nil {
		return "", err
	}
	if len(revWebhooks) == 0 {
		return "", fmt.Errorf("cannot modify tag: cannot find MutatingWebhookConfiguration with revision %q", opts.Revision)
	}
	if len(revWebhooks) > 1 {
		return "", fmt.Errorf("cannot modify tag: found multiple canonical webhooks with revision %q", opts.Revision)
	}

                    final FessConfig fessConfig) {
                return documentSizeByQuery;
            }

            @Override
            protected int refreshIndex(final SearchEngineClient searchEngineClient, final String index) {
                return 200;
            }
        };
        indexingHelper.setMaxRetryCount(5);
        indexingHelper.setDefaultRowSize(100);

    @Override
    public FavoriteLogDbm asDBMeta() {
        return FavoriteLogDbm.getInstance();
    }

    @Override
    public String asTableDbName() {
        return "favorite_log";
    }

    @Override
    public boolean hasSpecifiedColumn() {
        return _specification != null;
    }

    @Override
    public ConditionQuery localCQ() {
        return doGetConditionQuery();
    }

    @Override
    public UserInfoDbm asDBMeta() {
        return UserInfoDbm.getInstance();
    }

    @Override
    public String asTableDbName() {
        return "user_info";
    }

    @Override
    public boolean hasSpecifiedColumn() {
        return _specification != null;
    }

    @Override
    public ConditionQuery localCQ() {
        return doGetConditionQuery();
    }

        dstIndex += this.request.encode(dst, dstIndex);
        return dstIndex - start;
    }


    @Override
    protected int writeDataWireFormat ( byte[] dst, int dstIndex ) {
        return 0;
    }


    @Override
    protected int readSetupWireFormat ( byte[] buffer, int bufferIndex, int len ) {
        return 0;
    }


    @Override

        if (data == null) {
            return null;
        }
        try {
            return new String(data, StringUtil.isNotBlank(encoding) ? encoding : Constants.UTF_8);
        } catch (final UnsupportedEncodingException e) {
            return new String(data, Constants.UTF_8_CHARSET);
        }
    }

    @Override
    public String toString() {