code: def push(self, metric_name=None, metric_value=None, volume=None):
          
  
          graphite_path = self.path_prefix
          graphite_path += '.' + self.device + '.' + 'volume'
          graphite_path += '.' + volume + '.' + metric_name
  
          metric = Metric(graphite_path, metric_value, precision=4,
                          host=self.device)
  
          self.publish_metric(metric)
docs: Ship that shit off to graphite broski