}
					res = append(res, f)
				}
			}
		default:
			// Only prometheus and SD supported currently
			continue
		}
	}
	return res
}

var metricToPrometheusMetric = map[string]string{
	"REQUEST_COUNT":          "requests_total",
	"REQUEST_DURATION":       "request_duration_milliseconds",
	"REQUEST_SIZE":           "request_bytes",
	"RESPONSE_SIZE":          "response_bytes",