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