@query
    def __len__(self):
        return self.session.client.hlen(self.key)
Gets an authenticated RPC server and XSRF token for API calls.
dataset/ETHPy150Open dahlia/sider/sider/hash.py/Hash.__len__--crossover with--dataset/ETHPy150Open googlearchive/git-rv/submit.py/SubmitAction.__get_xsrf_server