- (new_maxrate, new_maxexemptrate) = nm.query(self.name, ['nm_net_max_rate', 'nm_net_max_exempt_rate'])
- if new_maxrate is not None:
+ (new_maxrate, new_maxexemptrate) = nm.query(self.name, [('nm_net_max_rate', -1), ('nm_net_max_exempt_rate', -1)])
+ if new_maxrate != -1: