code: public AssessmentRunInProgressException withAssessmentRunArns(String... assessmentRunArns) {
          if (this.assessmentRunArns == null) {
              setAssessmentRunArns(new java.util.ArrayList<String>(assessmentRunArns.length));
          }
          for (String ele : assessmentRunArns) {
              this.assessmentRunArns.add(ele);
          }
          return this;
      }
docs: <p>
  The ARNs of the assessment runs that are currently in progress.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setAssessmentRunArns(java.util.Collection)} or {@link #withAssessmentRunArns(java.util.Collection)} if
  you want to override the existing values.
  </p>
  
  @param assessmentRunArns
  The ARNs of the assessment runs that are currently in progress.
  @return Returns a reference to this object so that method calls can be chained together.