'Set authenticator, user & authtoken representing an unauthenticated request.
Defaults are None, AnonymousUser & None.'

def _not_authenticated(self):

    self._authenticator = None
    if api_settings.UNAUTHENTICATED_USER:
        self.user = api_settings.UNAUTHENTICATED_USER()
    else:
        self.user = None
    if api_settings.UNAUTHENTICATED_TOKEN:
        self.auth = api_settings.UNAUTHENTICATED_TOKEN()
    else:
        self.auth = None
