title: How to instrument Prometheus Gauge using OpenCensus?
body: <p>I am trying to find a way to instrument Prometheus Gauge metrics using OpenCencus in Golang. The goal is to track no of active sessions. So value can increase and decrease and also can reset to 0 on server restart.</p>
  <p>They have an example of it <a href="https://opencensus.io/quickstart/go/metrics/" rel="nofollow noreferrer">https://opencensus.io/quickstart/go/metrics/</a>, but I am not able to co-relate any with Gauge and resetting to 0.</p>
  <p>Could you suggest which Measure and View I should use to instrument Gauge which can increase, decrease, and reset to 0?</p>