code: func RecordTransformation(transformationType string, start time.Time, err error) {
  	if err != nil {
  		transformerFailuresTotal.WithLabelValues(transformationType).Inc()
  		return
  	}
  
  	transformerLatencies.WithLabelValues(transformationType).Observe(sinceInSeconds(start))
  	deprecatedTransformerLatencies.WithLabelValues(transformationType).Observe(sinceInMicroseconds(start))
  }
docs: // RecordTransformation records latencies and count of TransformFromStorage and TransformToStorage operations.