code: public CreateAssessmentTemplateRequest withRulesPackageArns(String... rulesPackageArns) {
          if (this.rulesPackageArns == null) {
              setRulesPackageArns(new java.util.ArrayList<String>(rulesPackageArns.length));
          }
          for (String ele : rulesPackageArns) {
              this.rulesPackageArns.add(ele);
          }
          return this;
      }
docs: <p>
  The ARNs that specify the rules packages that you want to attach to the assessment template.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setRulesPackageArns(java.util.Collection)} or {@link #withRulesPackageArns(java.util.Collection)} if you
  want to override the existing values.
  </p>
  
  @param rulesPackageArns
  The ARNs that specify the rules packages that you want to attach to the assessment template.
  @return Returns a reference to this object so that method calls can be chained together.