code: public GetInsightsRequest withInsightArns(String... insightArns) {
          if (this.insightArns == null) {
              setInsightArns(new java.util.ArrayList<String>(insightArns.length));
          }
          for (String ele : insightArns) {
              this.insightArns.add(ele);
          }
          return this;
      }
docs: <p>
  The ARNS of the insights that you want to describe.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setInsightArns(java.util.Collection)} or {@link #withInsightArns(java.util.Collection)} if you want to
  override the existing values.
  </p>
  
  @param insightArns
  The ARNS of the insights that you want to describe.
  @return Returns a reference to this object so that method calls can be chained together.