getServiceTokens method
Implementation
@override
Future<OAuthServiceToken?> getServiceTokens(OAuthService serviceName) async {
String? accessToken =
await StorageManager().readSecurely('${serviceName.name}_accessToken');
if (accessToken != null) {
return OAuthServiceToken(
accessToken: accessToken,
refreshToken: await StorageManager()
.readSecurely('${serviceName.name}_refreshToken'));
}
return null;
}