How to use the @cliqz/adblocker-electron.ElectronBlocker.deserialize function in @cliqz/adblocker-electron

alwaysOnTop: store.get('options.alwaysOnTop'),
    toolbar: false,
    backgroundColor: '#00000000',
    fullscreen: store.get('options.launchFullscreen')
  });

  // Connect Adblocker To Window if Enabled
  if (store.get('options.adblock')) {
    let engineCachePath = path.join(
      app.getPath('userData'),
      'adblock-engine-cache.txt'
    );

    if (fs.existsSync(engineCachePath)) {
      console.log('Adblock engine cache found. Loading it into app.');
      var engine = await ElectronBlocker.deserialize(
        fs.readFileSync(engineCachePath)
      );
    } else {
      var engine = await ElectronBlocker.fromLists(fetch, fullLists);
    }
    engine.enableBlockingInSession(session.defaultSession);

    // Backup Engine Cache to Disk
    fs.writeFile(engineCachePath, engine.serialize(), err => {
      if (err) throw err;
      console.log('Adblock Engine file cache has been updated!');
    });
  }

  // Reset The Windows Size and Location
  let windowDetails = store.get('options.windowDetails');

//  - https://raw.githubusercontent.com/uBlockOrigin/uAssets/master/filters/privacy.txt
    engine = await ElectronBlocker.fromPrebuiltAdsAndTracking(fetch);

    try {
      await fs.writeFile(path, engine.serialize());
    } catch (err) {
      if (err) return console.error(err);
    }
  };

  if (existsSync(path)) {
    try {
      const buffer = await fs.readFile(resolve(path));

      try {
        engine = ElectronBlocker.deserialize(buffer);
      } catch (e) {
        return downloadFilters();
      }
    } catch (err) {
      return console.error(err);
    }
  } else {
    return downloadFilters();
  }
};

//  - https://raw.githubusercontent.com/uBlockOrigin/uAssets/master/filters/privacy.txt
    engine = await ElectronBlocker.fromPrebuiltAdsAndTracking(fetch);

    try {
      await fs.writeFile(path, engine.serialize());
    } catch (err) {
      if (err) return console.error(err);
    }
  };

  if (existsSync(path)) {
    try {
      const buffer = await fs.readFile(resolve(path));

      try {
        engine = ElectronBlocker.deserialize(buffer);
      } catch (e) {
        return downloadFilters();
      }
    } catch (err) {
      return console.error(err);
    }
  } else {
    return downloadFilters();
  }
};