docs: public static <E> void logNormalizeInPlace(Counter<E> c) {
      double logsum = logSum(c);
      // for (E key : c.keySet()) {
      // c.incrementCount(key, -logsum);
      // }
      // This should be faster
      for (Map.Entry<E, Double> e : c.entrySet()) {
        e.setValue(e.getValue().doubleValue() - logsum);
      }
    }