code: private List<String> getTagsFromMetricGroup(MetricGroup metricGroup) {
  		List<String> tags = new ArrayList<>();
  
  		for (Map.Entry<String, String> entry: metricGroup.getAllVariables().entrySet()) {
  			if (!entry.getKey().equals(HOST_VARIABLE)) {
  				tags.add(getVariableName(entry.getKey()) + ":" + entry.getValue());
  			}
  		}
  
  		return tags;
  	}
docs: Get tags from MetricGroup#getAllVariables(), excluding 'host'.