code: def get_metric(self, slug):
          
          results = OrderedDict()
          granularities = self._granularities()
          keys = self._build_keys(slug)
          for granularity, key in zip(granularities, keys):
              results[granularity] = self.r.get(key)
          return results
docs: Get the current values for a metric.
  
          Returns a dictionary with metric values accumulated for the seconds,
          minutes, hours, day, week, month, and year.