code: @Override
      public Histogram histogram(String name) {
          com.codahale.metrics.Histogram histogram = new com.codahale.metrics.Histogram(
                  reservoirFactory.newInstance(com.codahale.metrics.Histogram.class, name)
          );
          return new CodahaleHistogram(metricRegistry.register(name, histogram));
      }
docs: {@inheritDoc}