Metrics (proto)
admin.v3.SimpleMetric
Proto representation of an Envoy Counter or Gauge value.
{
  "type": ...,
  "value": ...,
  "name": ...
}
- type
 (admin.v3.SimpleMetric.Type) Type of the metric represented.
- value
 (uint64) Current metric value.
- name
 (string) Name of the metric.
Enum admin.v3.SimpleMetric.Type
[admin.v3.SimpleMetric.Type proto]
- COUNTER
 (DEFAULT) 
- GAUGE