anchor.diff:  .Example Prometheus text format for a Meter
   [source, ruby]
   ----
  -# TYPE application:requests_count counter
  -# HELP application:requests_count Tracks the number of requests to the server
  -application:requests_count 29382
  +# TYPE application:requests_total counter
  +# HELP application:requests_total Tracks the number of requests to the server
  +application:requests_total 29382
   # TYPE application:requests_rate_per_second gauge
   application:requests_rate_per_second 12.223
   # TYPE application:requests_one_min_rate_per_second gauge
  
positive.code: 
  `Meter` is a complex metric type comprised of multiple key/values. Each key will require a suffix to be appended to the metric name. The format is specified by the table below.
  
  The `# HELP` description line is only required for the `count` value as shown below.
  
  .Prometheus text mapping for a Meter metric
  [cols="2,1,2,1"]
  |===
  | Suffix{label}                   | TYPE    | Value (Meter method)                | Units
  
  | `count`                         | Counter | `getCount()`                        | N/A
  | `rate_per_second`               | Gauge   | `getMeanRate()`                     | PER_SECOND
  | `one_min_rate_per_second`       | Gauge   | `getOneMinuteRate()`                | PER_SECOND
  | `five_min_rate_per_second`      | Gauge   | `getFiveMinuteRate()`               | PER_SECOND
  
negative.code: | `max_seconds`                   | Gauge   | `getSnapshot().getMax()`            | SECONDS^1^
  | `mean_seconds`                  | Gauge   | `getSnapshot().getMean()`           | SECONDS^1^
  | `stddev_seconds`                | Gauge   | `getSnapshot().getStdDev()`         | SECONDS^1^
  | `seconds_count`^2^              | Summary | `getCount()`                        | N/A
  | `seconds{quantile="0.5"}`^2^    | Summary | `getSnapshot().getMedian()`         | SECONDS^1^
  | `seconds{quantile="0.75"}`^2^   | Summary | `getSnapshot().get75thPercentile()` | SECONDS^1^
  | `seconds{quantile="0.95"}`^2^   | Summary | `getSnapshot().get95thPercentile()` | SECONDS^1^
  