How to use the workbox-core/_private/dontWaitFor.js.dontWaitFor function in workbox-core

`${urlsExpired.length === 1 ? 'entry' : 'entries'} and removed ` +
          `${urlsExpired.length === 1 ? 'it' : 'them'} from the ` +
          `'${this._cacheName}' cache.`);
        logger.log(`Expired the following ${urlsExpired.length === 1 ?
            'URL' : 'URLs'}:`);
        urlsExpired.forEach((url) => logger.log(`    ${url}`));
        logger.groupEnd();
      } else {
        logger.debug(`Cache expiration ran and found no entries to remove.`);
      }
    }

    this._isRunning = false;
    if (this._rerunRequested) {
      this._rerunRequested = false;
      dontWaitFor(this.expireEntries());
    }
  }

cacheDidUpdate: WorkboxPlugin['cacheDidUpdate'] = async (options) => {
    dontWaitFor(this._broadcastUpdate.notifyIfUpdated(options));
  }
}