code: public AttributeValue withSS(String... sS) {
          if (this.sS == null) {
              setSS(new java.util.ArrayList<String>(sS.length));
          }
          for (String ele : sS) {
              this.sS.add(ele);
          }
          return this;
      }
docs: <p>
  An attribute of type String Set. For example:
  </p>
  <p>
  <code>"SS": ["Giraffe", "Hippo" ,"Zebra"]</code>
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setSS(java.util.Collection)} or {@link #withSS(java.util.Collection)} if you want to override the
  existing values.
  </p>
  
  @param sS
  An attribute of type String Set. For example:</p>
  <p>
  <code>"SS": ["Giraffe", "Hippo" ,"Zebra"]</code>
  @return Returns a reference to this object so that method calls can be chained together.