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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def areBackupsDegraded(self):
 """ Return slow instance. """

        slow_instances = []
        if self.acc_monitor:
            for instance in self.instances.backupIds:
                if self.acc_monitor.is_instance_degraded(instance):
                    slow_instances.append(instance)
        else:
            for instance in self.instances.backupIds:
                if self.is_instance_throughput_too_low(instance):
                    slow_instances.append(instance)
        return slow_instances