How to use the node-opcua-service-browse.BrowseResponse function in node-opcua-service-browse

self.performMessageTransaction(request, function (err, response) {

        let i, r;

        if (err) {
            return callback(err, response);
        }

        assert(response instanceof browse_service.BrowseResponse);

        if (self.requestedMaxReferencesPerNode > 0) {

            for (i = 0; i < response.results.length; i++) {
                r = response.results[i];

                /* istanbul ignore next */
                if (r.references && r.references.length > self.requestedMaxReferencesPerNode) {
                    console.log("warning".yellow + " BrowseResponse : server didn't take into account our requestedMaxReferencesPerNode ");
                    console.log("        self.requestedMaxReferencesPerNode= " + self.requestedMaxReferencesPerNode);
                    console.log("        got " + r.references.length + "for " + nodesToBrowse[i].nodeId.toString());
                    console.log("        continuationPoint ", r.continuationPoint);
                }
            }
        }
        for (i = 0; i < response.results.length; i++) {

const CallRequest = call_service.CallRequest;
const CallResponse = call_service.CallResponse;

const ReadRequest = read_service.ReadRequest;
const ReadResponse = read_service.ReadResponse;

const WriteRequest = write_service.WriteRequest;
const WriteResponse = write_service.WriteResponse;

const ReadValueId = read_service.ReadValueId;

const HistoryReadRequest = historizing_service.HistoryReadRequest;
const HistoryReadResponse = historizing_service.HistoryReadResponse;

const BrowseRequest = browse_service.BrowseRequest;
const BrowseResponse = browse_service.BrowseResponse;

const BrowseNextRequest = browse_service.BrowseNextRequest;
const BrowseNextResponse = browse_service.BrowseNextResponse;

const RegisterNodesRequest = register_node_service.RegisterNodesRequest;
const RegisterNodesResponse = register_node_service.RegisterNodesResponse;
const UnregisterNodesRequest = register_node_service.UnregisterNodesRequest;
const UnregisterNodesResponse = register_node_service.UnregisterNodesResponse;

const TranslateBrowsePathsToNodeIdsRequest = translate_service.TranslateBrowsePathsToNodeIdsRequest;
const TranslateBrowsePathsToNodeIdsResponse = translate_service.TranslateBrowsePathsToNodeIdsResponse;



const NodeId = require("node-opcua-nodeid").NodeId;
const DataValue = require("node-opcua-data-value").DataValue;