logoutNoContext method
Logs out of this CarpService, by clearing the current user.
Use only if you know what you are doing! This method is used only if the logout method does not work for you, i.e. you do not have access to a BuildContext.
Use this if you used authenticateWithUsernamePassword or authenticateWithUsernamePasswordNoContext to authenticate.
Implementation
Future<void> logoutNoContext() async {
currentUser = null;
}