code: @Override
      public boolean isBillingAvailable(final String packageName) {
          Logger.i("NokiaStore.isBillingAvailable");
          Logger.d("packageName = ", packageName);
  
          final PackageManager packageManager = context.getPackageManager();
          final List<PackageInfo> allPackages = packageManager.getInstalledPackages(0);
  
          for (final PackageInfo packageInfo : allPackages) {
  
              if (NOKIA_INSTALLER.equals(packageInfo.packageName)) {
                  return verifyFingreprint();
              }
          }
  
          return false;
      }
docs: Tells whether in-app billing is ready to work with specified app
  For OpenStore app: if any in-app item for this app published in store