    def allow_all(self):
        """Property indicating that all successfully identified user
        or service should be allowed.
        """
        return (
            self.hub_scopes is None
            and self.hub_services is None
            and self.hub_users is None
            and self.hub_groups is None
            and not self.allow_admin
        )
Property indicating that all successfully identified user
or service should be allowed.
jupyterhub/services/auth.py