code: public java.util.List<UnsuccessfulInstanceCreditSpecificationItem> getUnsuccessfulInstanceCreditSpecifications() {
          if (unsuccessfulInstanceCreditSpecifications == null) {
              unsuccessfulInstanceCreditSpecifications = new com.amazonaws.internal.SdkInternalList<UnsuccessfulInstanceCreditSpecificationItem>();
          }
          return unsuccessfulInstanceCreditSpecifications;
      }
docs: <p>
  Information about the instances whose credit option for CPU usage was not modified.
  </p>
  
  @return Information about the instances whose credit option for CPU usage was not modified.