in aws-iot-fleetmetric/src/main/java/com/amazonaws/iot/fleetmetric/UpdateHandler.java [166:172]
Set<Tag> listTags(
AmazonWebServicesClientProxy proxy,
String resourceArn,
Logger logger) {
List<Tag> tags = HandlerUtils.listTags(iotClient, proxy, resourceArn, logger);
return new HashSet<>(tags);
}