docs: public static GVRScriptBundle loadFromFile(GVRContext gvrContext, String filePath,
              GVRResourceVolume volume) throws IOException {
          GVRAndroidResource fileRes = volume.openResource(filePath);
          String fileText = TextFile.readTextFile(fileRes.getStream());
          fileRes.closeStream();
  
          GVRScriptBundle bundle = new GVRScriptBundle();
          Gson gson = new Gson();
          try {
              bundle.gvrContext = gvrContext;
              bundle.file = gson.fromJson(fileText, GVRScriptBundleFile.class);
              bundle.volume = volume;
              return bundle;
          } catch (Exception e) {
              throw new IOException("Cannot load the script bundle", e);
          }
      }