docs: public ModifyInstanceCreditSpecificationRequest withInstanceCreditSpecifications(InstanceCreditSpecificationRequest... instanceCreditSpecifications) {
          if (this.instanceCreditSpecifications == null) {
              setInstanceCreditSpecifications(new com.amazonaws.internal.SdkInternalList<InstanceCreditSpecificationRequest>(instanceCreditSpecifications.length));
          }
          for (InstanceCreditSpecificationRequest ele : instanceCreditSpecifications) {
              this.instanceCreditSpecifications.add(ele);
          }
          return this;
      }