title: How to use Graphite's identity() function with Grafana?
body: <p>I'm trying to set up a time function with Graphite and Grafana, and I found the <code>identity()</code> function in Graphite's <a href="https://graphite.readthedocs.io/en/latest/functions.html#graphite.render.functions.identity" rel="nofollow noreferrer">documentation</a>.
  But I couldn't enter the function into Grafana, how do I get it work?</p>