def incStat(self, key, delta=1):
        if key in self.stats:
            self.stats[key] += delta
        else:
            self.stats[key] = delta
Allows for escaping of the separator: e.g. task:arg='foo\, bar'
dataset/ETHPy150Open ioflo/ioflo/ioflo/aio/proto/stacking.py/Stack.incStat--crossover with--dataset/ETHPy150Open prestodb/presto-admin/prestoadmin/main.py/_escape_split