gistfile1.txt

  @deprecated('Use `FacebookAuthProvider` and `signInAndRetrieveData` instead')
  Future<FirebaseUser> signInWithFacebook(
      {@required String accessToken}) {
    return signIn(credential: FacebookAuthProvider.getCredential(accessToken: accessToken));
  }

  /// Signs in with a Twitter account using the specified credentials.
  ///
  /// The returned future completes with the signed-in user or a [PlatformException], if sign in failed.
  @deprecated('Use `TwitterAuthProvider` and `signInAndRetrieveData` instead')
  Future<FirebaseUser> signInWithTwitter({
    @required String authToken,
    @required String authTokenSecret,
  }) {
    return signIn(credential: TwitterAuthProvider.getCredential(
      authToken: authToken,
      authTokenSecret: authTokenSecret,
    ));
  }

  @deprecated('Use `GithubAuthProvider` and `signInAndRetrieveData` instead')
  Future<FirebaseUser> signInWithGithub({@required String token}) {
    return signIn(credential: GithbAuthProvider.getCredential(token: token));
  }

  @deprecated('Use `GoogleAuthProvider` and `signInAndRetrieveData` instead')
  Future<FirebaseUser> signInWithGoogle({
    @required String idToken,
    @required String accessToken,
  }) {
    return signIn(credential: GoogleAuthProvider.getCredential(
      idToken: idToken,
      accessToken: accessToken,
    ));
  }

  @deprecated('Use `PhoneAuthProvider` and `signInAndRetrieveData` instead')
  Future<FirebaseUser> signInWithPhoneNumber({
    @required String verificationId,
    @required String smsCode,
  }) async {
    return signIn(credential: PhoneAuthProvider.getCredential(
      verificationId: verificationId,
      smsCode: smsCode,
    ));
  }