How to use the node-opcua-data-value.TimestampsToReturn function in node-opcua-data-value

"use strict";
/**
 * @module services.read
 */
//--------------------------------------------------------------------------------
// OPCUA Part 4 $5.10 : Attribute Service Set
// This Service Set provides Service sto access Attributes that are part of Nodes.
//--------------------------------------------------------------------------------


/**
 * @class TimestampsToReturn
 */
exports.TimestampsToReturn = require("node-opcua-data-value").TimestampsToReturn;
/**
 * @class AttributeIds
 */
exports.AttributeIds = require("node-opcua-data-model").AttributeIds;
/**
 * @class AttributeNameById
 */
exports.AttributeNameById = require("node-opcua-data-model").AttributeNameById;
/**
 * @class ReadValueId
 */
exports.ReadValueId  = require("./_generated_/_auto_generated_ReadValueId").ReadValueId;
/**
 * @class ReadRequest
 */
exports.ReadRequest  = require("./_generated_/_auto_generated_ReadRequest").ReadRequest;

require("node-opcua-extension-object");
require("node-opcua-service-secure-channel");
const TimestampsToReturn = require("node-opcua-data-value").TimestampsToReturn;


const HistoryReadRequest_Schema = {
    name: "HistoryReadRequest",
    fields: [
        {   name: "requestHeader", fieldType: "RequestHeader"},

        {   name: "historyReadDetails", fieldType: "ExtensionObject" /* in fact a "HistoryReadDetails" */,
            documentation: "Maximum age of the value to be read in milliseconds"
        },
        {   name: "timestampsToReturn", fieldType: "TimestampsToReturn",
            documentation: "An enumeration that specifies the Timestamps to be returned for each requested Variable Value Attribute.",
            defaultValue: TimestampsToReturn.Neither
        },
        {
            name: "releaseContinuationPoints", fieldType: "Boolean"

* @class TimestampsToReturn
     */
    MonitoringMode: require("./schemas/MonitoringMode_enum").MonitoringMode,
    /**
     * @class TimestampsToReturn
     */
    DataChangeTrigger: require("./schemas/DataChangeTrigger_enum").DataChangeTrigger,
    /**
     * @class TimestampsToReturn
     */
    DeadbandType: require("./schemas/DeadbandType_enum").DeadbandType,

    /**
     * @class TimestampsToReturn
     */
    TimestampsToReturn: require("node-opcua-data-value").TimestampsToReturn,

    /**
     * @class CreateSubscriptionRequest
     */
    CreateSubscriptionRequest: require("./_generated_/_auto_generated_CreateSubscriptionRequest").CreateSubscriptionRequest,
    /**
     * @class CreateSubscriptionResponse
     */
    CreateSubscriptionResponse: require("./_generated_/_auto_generated_CreateSubscriptionResponse").CreateSubscriptionResponse,
    /**
     * @class ModifySubscriptionRequest
     */
    ModifySubscriptionRequest: require("./_generated_/_auto_generated_ModifySubscriptionRequest").ModifySubscriptionRequest,
    /**
     * @class ModifySubscriptionResponse
     */

require("node-opcua-service-secure-channel");
const TimestampsToReturn = require("node-opcua-data-value").TimestampsToReturn;

/*
 * Maximum age of the value to be read in milliseconds. The age of the value is based on the difference between the
 * ServerTimestamp and the time when the Server starts processing the request. For example if the Client specifies a
 * maxAge of 500 milliseconds and it takes 100 milliseconds until the Server starts processing the request, the age of
 * the returned value could be 600 milliseconds prior to the time it was requested.
 * If the Server has one or more values of an Attribute that are within the maximum age, it can return any one of the
 * values or it can read a new value from the data source. The number of values of an Attribute that a Server has
 * depends on the number of MonitoredItems that are defined for the Attribute.
 * In any case, the Client can make no assumption about which copy of the data will be returned.
 * If the Server does not have a value that is within the maximum age, it shall attempt to read a new value from the
 * data source.
 * If the Server cannot meet the requested maxAge, it returns its “best effort” value rather than rejecting the request.
 * This may occur when the time it takes the Server to process and return the new data value after it has been accessed
 * is greater than the specified maximum age.
 * If maxAge is set to 0, the Server shall attempt to read a new value from the data source.