How to use @financial-times/polyfill-useragent-normaliser - 3 common examples

.then(data => {
				this.config = TOML.parse(data);

				// Each internal polyfill needs to target all supported browsers at all versions.
				if (this.path.relative.startsWith('_')) {
					const supportedBrowsers = Object.keys(UA.getBaselines()).sort((a, b) => a.localeCompare(b));
					if (!supportedBrowsers.every(browser => this.config.browsers[browser] === "*")){
						const browserSupport = {};
						supportedBrowsers.forEach(browser => browserSupport[browser] = "*");
						throw new Error("Internal polyfill called " + this.name + " is not targeting all supported browsers correctly. It should be: \n" + TOML.stringify(browserSupport));
					}
				}

				this.config.detectSource = '';
				this.config.baseDir = this.path.relative;

				if ('licence' in this.config) {
					throw new Error(`Incorrect spelling of license property in ${this.name}`);
				}

				this.config.hasTests = fs.existsSync(path.join(this.path.absolute, 'tests.js'));
				this.config.isTestable = !('test' in this.config && 'ci' in this.config.test && this.config.test.ci === false);

"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.

"use strict";

module.exports = {
	supportedBrowsers: Object.entries(require("@financial-times/polyfill-useragent-normaliser/data.json").baselineVersions).map(([browser, version]) => {
		switch (browser) {
			case "ie": {
				browser = "Internet Explorer";
				break;
			}
			case "ie_mob": {
				browser = "Internet Explorer Mobile";
				break;
			}
			case "chrome": {
				browser = "Chrome";
				break;
			}
			case "safari": {
				browser = "Safari";
				break;