def histogram(self, key):
        if key not in self._histograms:
            self._histograms[key] = Histogram(clock=self._clock)
        return self._histograms[key]
Incoming action is an int between 0 and 8. The action we provide to
dataset/ETHPy150Open cloudera/hue/desktop/core/ext-py/pyformance-0.3.2/pyformance/registry.py/MetricsRegistry.histogram--crossover with--dataset/ETHPy150Open pybrain/pybrain/examples/rl/environments/linear_fa/bicycle.py/BalanceTask.performAction