code: public java.util.List<AutoScalingGroup> getHooksNotCleanedUp() {
          if (hooksNotCleanedUp == null) {
              hooksNotCleanedUp = new com.amazonaws.internal.SdkInternalList<AutoScalingGroup>();
          }
          return hooksNotCleanedUp;
      }
docs: <p>
  If the output contains no data, and the corresponding deployment group contained at least one Auto Scaling group,
  AWS CodeDeploy successfully removed all corresponding Auto Scaling lifecycle event hooks from the AWS account. If
  the output contains data, AWS CodeDeploy could not remove some Auto Scaling lifecycle event hooks from the AWS
  account.
  </p>
  
  @return If the output contains no data, and the corresponding deployment group contained at least one Auto
  Scaling group, AWS CodeDeploy successfully removed all corresponding Auto Scaling lifecycle event hooks
  from the AWS account. If the output contains data, AWS CodeDeploy could not remove some Auto Scaling
  lifecycle event hooks from the AWS account.