code: public void setNS(java.util.Collection<String> nS) {
          if (nS == null) {
              this.nS = null;
              return;
          }
  
          java.util.List<String> nSCopy = new java.util.ArrayList<String>(nS.size());
          nSCopy.addAll(nS);
          this.nS = nSCopy;
      }
docs: A set of numbers.
  
  @param nS A set of numbers.