code: public void setEC2InstanceIdsToTerminate(java.util.Collection<String> eC2InstanceIdsToTerminate) {
          if (eC2InstanceIdsToTerminate == null) {
              this.eC2InstanceIdsToTerminate = null;
              return;
          }
  
          this.eC2InstanceIdsToTerminate = new com.amazonaws.internal.SdkInternalList<String>(eC2InstanceIdsToTerminate);
      }
docs: <p>
  The EC2 InstanceIds to terminate. After you terminate the instances, the instance group will not return to its
  original requested size.
  </p>
  
  @param eC2InstanceIdsToTerminate
  The EC2 InstanceIds to terminate. After you terminate the instances, the instance group will not return to
  its original requested size.