docs: public ModifyInstanceCreditSpecificationResult withSuccessfulInstanceCreditSpecifications(
              SuccessfulInstanceCreditSpecificationItem... successfulInstanceCreditSpecifications) {
          if (this.successfulInstanceCreditSpecifications == null) {
              setSuccessfulInstanceCreditSpecifications(new com.amazonaws.internal.SdkInternalList<SuccessfulInstanceCreditSpecificationItem>(
                      successfulInstanceCreditSpecifications.length));
          }
          for (SuccessfulInstanceCreditSpecificationItem ele : successfulInstanceCreditSpecifications) {
              this.successfulInstanceCreditSpecifications.add(ele);
          }
          return this;
      }