'Formats all of the metrics and returns them as a dict.
:return: C{list} of C{dict} of metrics'

def dump_metrics(self):

    metrics = {}
    for metric_type in (self._counters, self._histograms, self._meters, self._timers, self._gauges):
        for key in metric_type.keys():
            metrics[key] = self.get_metrics(key)
    return metrics
