code: public ListSizeConstraintSetsResult withSizeConstraintSets(SizeConstraintSetSummary... sizeConstraintSets) {
          if (this.sizeConstraintSets == null) {
              setSizeConstraintSets(new java.util.ArrayList<SizeConstraintSetSummary>(sizeConstraintSets.length));
          }
          for (SizeConstraintSetSummary ele : sizeConstraintSets) {
              this.sizeConstraintSets.add(ele);
          }
          return this;
      }
docs: <p>
  An array of <a>SizeConstraintSetSummary</a> objects.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setSizeConstraintSets(java.util.Collection)} or {@link #withSizeConstraintSets(java.util.Collection)} if
  you want to override the existing values.
  </p>
  
  @param sizeConstraintSets
  An array of <a>SizeConstraintSetSummary</a> objects.
  @return Returns a reference to this object so that method calls can be chained together.