code: public HllUpdate addAll(Collection<String> elements)
      {
          if (elements == null)
          {
              throw new IllegalArgumentException("Elements cannot be null");
          }
  
          for (String element : elements)
          {
              this.adds.add(BinaryValue.create(element));
          }
  
          return this;
      }
docs: Add the provided elements to the HyperLogLog in Riak.
  @param elements the elements to be added.
  @return a reference to this object.