def list_policies(self, scaling_group):
        """
        Returns a list of all policies defined for the specified scaling group.
        """
        uri = "/%s/%s/policies" % (self.uri_base, utils.get_id(scaling_group))
        resp, resp_body = self.api.method_get(uri)
        return [AutoScalePolicy(self, data, scaling_group)
                for data in resp_body.get("policies", [])]