How to use the appium-ios-driver.IOSPerformanceLog function in appium-ios-driver

// `contextId` will be in the form of `appId.pageId` in this case
  const [appIdKey, pageIdKey] = _.map(contextId.split('.'), (id) => parseInt(id, 10));
  try {
    this.selectingNewPage = true;
    await this.remote.selectPage(appIdKey, pageIdKey, skipReadyCheck);
  } catch (err) {
    this.curContext = this.curWindowHandle = oldContext;
    throw err;
  } finally {
    this.selectingNewPage = false;
  }

  // attempt to start performance logging, if requested
  if (this.opts.enablePerformanceLogging && this.remote) {
    log.debug(`Starting performance log on '${this.curContext}'`);
    this.logs.performance = new IOSPerformanceLog(this.remote);
    await this.logs.performance.startCapture();
  }

  // start safari logging if the logs handlers are active
  if (name && name !== NATIVE_WIN && this.logs) {
    if (this.logs.safariConsole) {
      await this.remote.startConsole(this.logs.safariConsole.addLogLine.bind(this.logs.safariConsole));
    }
    if (this.logs.safariNetwork) {
      await this.remote.startNetwork(this.logs.safariNetwork.addLogLine.bind(this.logs.safariNetwork));
    }
  }
};