code: private AutoScalingGroup retrieveAutoScalingGroup(String asgName) {
          if (Strings.isNullOrEmpty(asgName)) {
              logger.warn("null asgName specified, not attempting to retrieve AutoScalingGroup from AWS");
              return null;
          }
          // You can pass one name or a list of names in the request
          DescribeAutoScalingGroupsRequest request = new DescribeAutoScalingGroupsRequest()
                  .withAutoScalingGroupNames(asgName);
          DescribeAutoScalingGroupsResult result = awsClient
                  .describeAutoScalingGroups(request);
          List<AutoScalingGroup> asgs = result.getAutoScalingGroups();
          if (asgs.isEmpty()) {
              return null;
          } else {
              return asgs.get(0);
          }
      }
docs: Queries AWS to get the autoscaling information given the asgName.
  
  @param asgName
  - The name of the ASG.
  @return - The auto scaling group information.