How to use the @financial-times/polyfill-useragent-normaliser.normalize function in @financial-times/polyfill-useragent-normaliser

"use strict";

const toposort = require("toposort").array;
const createAliasResolver = require("./aliases");
const UA = require('@financial-times/polyfill-useragent-normaliser');
const sources = require("./sources");
const appVersion = require("../package.json").version;
const streamFromPromise = require("stream-from-promise");
const streamFromString = require("from2-string");
const mergeStream = require("merge2");
const streamToString = require("stream-to-string");
const normalizeUserAgent = UA.normalize;
const LRUCache = require('mnemonist/lru-cache');
const cache = new LRUCache(1000);

module.exports = {
	listAliases,
	listAllPolyfills,
	describePolyfill,
	getOptions,
	getPolyfills,
	getPolyfillString,
	normalizeUserAgent
};

/**
 * Get a list of all the aliases which exist within the collection of polyfill sources.
 * @returns {Promise} A promise which resolves with an array of all the aliases within the collection.