def decr(self, key, amount=1):

        offset = self.get_node_offset(key)
        return self.servers[offset].decr(key, amount)
Determine that the relative error between `actual` and `desired`
dataset/ETHPy150Open gmr/mredis/mredis/client.py/MRedis.decr--crossover with--dataset/ETHPy150Open OpenMDAO/OpenMDAO-Framework/openmdao.util/src/openmdao/util/testutil.py/assert_rel_error