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

ClientSession.prototype.browse = function (nodesToBrowse, callback) {

    const self = this;

    self.requestedMaxReferencesPerNode = self.requestedMaxReferencesPerNode || 10000;
    assert(_.isFinite(self.requestedMaxReferencesPerNode));
    assert(_.isFunction(callback));

    const isArray = _.isArray(nodesToBrowse);
    if (!isArray) {
        nodesToBrowse = [nodesToBrowse];
    }

    nodesToBrowse = nodesToBrowse.map(coerceBrowseDescription);

    const request = new browse_service.BrowseRequest({
        nodesToBrowse: nodesToBrowse,
        requestedMaxReferencesPerNode: self.requestedMaxReferencesPerNode
    });

    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) {