code: public AttributeValue withNS(String... nS) {
          if (getNS() == null) setNS(new java.util.ArrayList<String>(nS.length));
          for (String value : nS) {
              getNS().add(value);
          }
          return this;
      }
docs: A set of numbers.
  <p>
  Returns a reference to this object so that method calls can be chained together.
  
  @param nS A set of numbers.
  
  @return A reference to this updated object so that method calls can be chained
  together.