getArch static method
Returns architecture name loaded.
Implementation
static Future<String> getArch() async {
  try {
    await FFmpegKitConfig.init();
    return _platform.archDetectGetArch();
  } on PlatformException catch (e, stack) {
    print("Plugin getArch error: ${e.message}");
    return Future.error("getArch failed.", stack);
  }
}