docs: public void setCount(E key, int count) {
      if (tempMInteger == null) {
        tempMInteger = new MutableInteger();
      }
      tempMInteger.set(count);
      tempMInteger = map.put(key, tempMInteger);
  
  
      totalCount += count;
      if (tempMInteger != null) {
        totalCount -= tempMInteger.intValue();
      }
  
    }