docs: public void setInstanceCreditSpecifications(java.util.Collection<InstanceCreditSpecificationRequest> instanceCreditSpecifications) {
          if (instanceCreditSpecifications == null) {
              this.instanceCreditSpecifications = null;
              return;
          }
  
          this.instanceCreditSpecifications = new com.amazonaws.internal.SdkInternalList<InstanceCreditSpecificationRequest>(instanceCreditSpecifications);
      }