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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 _flush_batch_incr_counter(self):
 """ Increments any unflushed counter values. """

        for key, count in six.iteritems(self._counter_dict):
            if count == 0:
                continue
            args = list(key) + [count]
            self._incr_counter(*args)
            self._counter_dict[key] = 0