How to use the node-simctl.terminate function in node-simctl

log.info(`Successfully restored keychains after full reset`);
    } else if (opts.keychainsExcludePatterns || opts.keepKeyChains) {
      log.warn('Cannot restore keychains after full reset, because ' +
               'the backup operation did not succeed');
    }
  } else if (opts.bundleId) {
    // fastReset or noReset

    // Terminate the app under test if it is still running on Simulator
    // Termination is not needed if Simulator is not running
    if (await device.isRunning()) {
      if (opts.enforceSimulatorShutdown) {
        await shutdownSimulator(device);
      } else {
        try {
          await terminate(device.udid, opts.bundleId);
        } catch (err) {
          log.warn(`Reset: failed to terminate Simulator application with id "${opts.bundleId}"`);
        }
      }
    }
    if (opts.app) {
      log.info('Not scrubbing third party app in anticipation of uninstall');
      return;
    }
    const isSafari = (opts.browserName || '').toLowerCase() === 'safari';
    try {
      if (isSafari) {
        await device.cleanSafari();
      } else {
        // iOS 8+ does not need basename
        await device.scrubCustomApp('', opts.bundleId);

async cleanCustomApp (appFile, appBundleId, scrub = false) {
    try {
      await terminate(this.udid, appBundleId);
    } catch (ign) {
      // ignore error
    }
    await super.cleanCustomApp(appFile, appBundleId, scrub);
  }

async cleanSafari (keepPrefs = true) {
    try {
      if (await this.isRunning()) {
        await terminate(this.udid, MOBILE_SAFARI_BUNDLE_ID);
      }
    } catch (ign) {
      // ignore error
    }
    await super.cleanSafari(keepPrefs);
  }