void connectWithGoogleFit() async {
    final GoogleSignIn googleSignIn = GoogleSignIn(
        scopes: <String>[
          'email',
          'https://www.googleapis.com/auth/fitness.activity.read',
        ]);
    final GoogleSignInAccount googleUser = await googleSignIn.signIn();
    final GoogleSignInAuthentication googleSignInAuthentication =
        await googleUser.authentication;
    String serverAuthToken = googleSignInAuthentication.serverAuthCode;
    print('token');
    print(serverAuthToken);
  }