def substr(self, key, start, end=-1):

        offset = self.get_node_offset(key)
        return self.servers[offset].substr(key, start, end)
Return True if the given object has a database
dataset/ETHPy150Open gmr/mredis/mredis/client.py/MRedis.substr--crossover with--dataset/ETHPy150Open goFrendiAsgard/kokoropy/kokoropy/packages/sqlalchemy/orm/util.py/has_identity