code: @TargetApi(Build.VERSION_CODES.GINGERBREAD)
      public static boolean hasSipFeature(PackageManager manager) {
          return manager.hasSystemFeature(PackageManager.FEATURE_SIP);
      }
docs: Checks if the device has a SIP.
  @param manager the package manager.
  @return {@code true} if the device has a SIP.