How to use the appium-ios-driver.iosCommands.web function in appium-ios-driver

const IPHONE_LANDSCAPE_TOP_BAR_HEIGHT = 51;
const IPHONE_BOTTOM_BAR_OFFSET = 49;
const TAB_BAR_OFFSET = 33;
const IPHONE_WEB_COORD_SMART_APP_BANNER_OFFSET = 84;
const IPAD_WEB_COORD_SMART_APP_BANNER_OFFSET = 95;

const IPHONE_X_WIDTH = 375;
const IPHONE_X_HEIGHT = 812;
const IPHONE_XR_WIDTH = 414;
const IPHONE_XR_HEIGHT = 896;

const ATOM_WAIT_TIMEOUT = 5 * 60000;

let extensions = {};

Object.assign(extensions, iosCommands.web);



extensions.getSafariIsIphone = _.memoize(async function getSafariIsIphone () {
  try {
    const userAgent = await this.execute('return navigator.userAgent');
    return userAgent.toLowerCase().includes('iphone');
  } catch (err) {
    log.warn(`Unable to find device type from useragent. Assuming iPhone`);
    log.debug(`Error: ${err.message}`);
  }
  return true;
});

extensions.getSafariIsIphoneX = _.memoize(async function getSafariIsIphone () {
  try {